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Cheap flights from St. Louis to Portland (STL - PDX) from $44

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — PDX
May 8 — May 151
From?
To?
Wed 5/8
Wed 5/15
1 adult, Economy
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The best prices from Lambert-St Louis to Portland are usually found in September or January, booked 53 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from St. Louis to Portland

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 3, 2024.

Popular in

December

Cheapest in

September

Round-trip from

$276

One-way from

$140
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 17% potential price drop
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From Lambert-St Louis to Portland
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One-way flight from Lambert-St Louis to Portland
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What is the cheapest day to fly round-trip from St. Louis to Portland?

Saturday flights are generally found to be more expensive for flights from St. Louis to Portland. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Portland.

How far in advance should I book a flight from St. Louis to Portland?

To save on the cost of your flight from St. Louis to Portland, book at least 54 days before your planned departure. Booking around this time can save you about 51% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $222 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $421.

What is the cheapest month to fly from St. Louis to Portland?

The best pricing can be found in the month of September. Prices to Portland from St. Louis average $436. You can even find prices in September for less than $436, as users have found deals to Portland from as low as $167. The month of December appears to be one of the more expensive times to travel to Portland from St. Louis. Flying in the targeted month can save you up to 20%.

When is the cheapest time to fly from St. Louis to Portland (STL - PDX)?

When flying from St. Louis to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 33% versus a flight at noon.

Cheap Delta flights from St. Louis to Portland

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Peruse some of the lowest-priced Delta flights we've found from St. Louis to Portland. Make sure to check back often as deals are often changing.
Tue 5/75:30 pmSTL - PDX
1 stop8h 12mDelta
Sat 5/111:20 pmPDX - STL
1 stop6h 04mDelta
Deal found 5/2$286
Tue 7/95:59 pmSTL - PDX
1 stop7h 16mDelta
Fri 7/1210:55 pmPDX - STL
1 stop8h 28mDelta
Deal found 5/2$313
Wed 7/176:15 amSTL - PDX
1 stop6h 33mDelta
Wed 7/1710:55 pmPDX - STL
1 stop8h 28mDelta
Deal found 5/2$344
Thu 8/156:59 pmSTL - PDX
1 stop6h 51mDelta
Thu 8/223:15 pmPDX - STL
2 stops7h 21mDelta
Deal found 5/2$352
Mon 6/32:28 pmSTL - PDX
2 stops8h 10mDelta
Fri 6/712:30 amPDX - STL
1 stop8h 05mDelta
Deal found 5/2$361
Tue 5/146:11 amSTL - PDX
2 stops10h 24mDelta
Thu 5/1612:40 amPDX - STL
1 stop8h 30mDelta
Deal found 5/2$485
Thu 5/92:28 pmSTL - PDX
2 stops8h 09mDelta
Sun 5/125:10 amPDX - STL
2 stops10h 35mDelta
Deal found 5/3$623
Sat 5/46:30 amSTL - PDX
2 stops12h 08mDelta
Wed 6/512:40 amPDX - STL
1 stop8h 30mDelta
Deal found 5/2$732
Sat 5/46:30 amSTL - PDX
2 stops12h 08mDelta
Sat 5/412:50 amPDX - STL
1 stop8h 09mDelta
Deal found 5/1$740

Cheap Spirit Airlines flights from St. Louis to Portland

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Some of the lowest-priced Spirit Airlines flights we've found at this time heading from St. Louis to Portland. Deals are refreshing constantly so come back soon for more options.
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/2$94
Wed 5/1511:36 amSTL - PDX
1 stop25h 29mSpirit Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/2$110
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Mon 5/201:05 pmPDX - STL
2 stops18h 34mSpirit Airlines
Deal found 5/2$153
Fri 5/174:05 pmSTL - PDX
1 stop10h 26mSpirit Airlines
Mon 5/205:20 amPDX - STL
1 stop7h 54mSpirit Airlines
Deal found 5/1$170
Fri 5/174:05 pmSTL - PDX
1 stop10h 26mSpirit Airlines
Mon 5/201:05 pmPDX - STL
2 stops18h 34mSpirit Airlines
Deal found 5/1$198
Wed 6/191:55 pmSTL - PDX
1 stop9h 48mSpirit Airlines
Tue 6/2511:58 amPDX - STL
1 stop23h 07mSpirit Airlines
Deal found 5/2$209
Fri 5/244:05 pmSTL - PDX
1 stop10h 26mSpirit Airlines
Mon 5/275:20 amPDX - STL
1 stop7h 54mSpirit Airlines
Deal found 5/2$228
Fri 5/174:05 pmSTL - PDX
3 stops32h 25mSpirit Airlines
Mon 5/205:20 amPDX - STL
1 stop7h 54mSpirit Airlines
Deal found 5/1$249
Thu 5/167:30 pmSTL - PDX
3 stops29h 00mSpirit Airlines
Tue 5/215:20 amPDX - STL
1 stop27h 26mSpirit Airlines
Deal found 5/3$250

Cheap St. Louis to Portland flights in May & June 2024

Find cheap flight options from St. Louis to Portland specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Prices were last updated on May 3, 2024.
Scroll through some of the best deals on flights from St. Louis to Portland in 2024. Check back regularly for other flight deals.
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/2$94
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Tue 5/2112:00 pmPDX - STL
1 stop20h 46mSpirit Airlines
Deal found 5/3$116
Wed 5/2911:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Thu 5/3010:54 pmPDX - STL
1 stop9h 19mMultiple Airlines
Deal found 5/3$140
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Mon 5/2012:43 amPDX - STL
1 stop10h 26mMultiple Airlines
Deal found 5/2$141
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Sun 5/1912:48 amPDX - STL
1 stop6h 48mMultiple Airlines
Deal found 5/2$149
Mon 5/274:05 pmSTL - PDX
1 stop21h 00mSpirit Airlines
Tue 5/283:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/3$150
Tue 5/144:50 pmSTL - PDX
1 stop9h 09mMultiple Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mMultiple Airlines
Deal found 5/3$151
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Mon 5/201:05 pmPDX - STL
2 stops18h 34mSpirit Airlines
Deal found 5/2$153
Thu 5/1611:06 pmSTL - PDX
1 stop26h 37mMultiple Airlines
Tue 5/2112:00 pmPDX - STL
1 stop20h 46mMultiple Airlines
Deal found 5/3$156

St. Louis to Portland 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Portland in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Scroll through some of the best deals on flights from St. Louis to Portland in 2024. Check back regularly for other flight deals.
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/2$94
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Tue 5/2112:00 pmPDX - STL
1 stop20h 46mSpirit Airlines
Deal found 5/3$116
Wed 5/2911:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Thu 5/3010:54 pmPDX - STL
1 stop9h 19mMultiple Airlines
Deal found 5/3$140
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Mon 5/2012:43 amPDX - STL
1 stop10h 26mMultiple Airlines
Deal found 5/2$141
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Sun 5/1912:48 amPDX - STL
1 stop6h 48mMultiple Airlines
Deal found 5/2$149
Mon 5/274:05 pmSTL - PDX
1 stop21h 00mSpirit Airlines
Tue 5/283:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/3$150
Tue 5/144:50 pmSTL - PDX
1 stop9h 09mMultiple Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mMultiple Airlines
Deal found 5/3$151
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Mon 5/201:05 pmPDX - STL
2 stops18h 34mSpirit Airlines
Deal found 5/2$153
Thu 5/1611:06 pmSTL - PDX
1 stop26h 37mMultiple Airlines
Tue 5/2112:00 pmPDX - STL
1 stop20h 46mMultiple Airlines
Deal found 5/3$156

St. Louis to Portland flights leaving soon

Find last-minute flight options from St. Louis to Portland for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Have a look at some of the flights available from St. Louis to Portland departing last-minute. It's wise to confirm all flight details are correct before booking.
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/2$94
Wed 5/1511:36 amSTL - PDX
1 stop25h 29mSpirit Airlines
Tue 5/213:57 pmPDX - STL
1 stop16h 49mSpirit Airlines
Deal found 5/2$110
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Mon 5/2012:43 amPDX - STL
1 stop10h 26mMultiple Airlines
Deal found 5/2$141
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mMultiple Airlines
Sun 5/1912:48 amPDX - STL
1 stop6h 48mMultiple Airlines
Deal found 5/2$149
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Mon 5/201:05 pmPDX - STL
2 stops18h 34mSpirit Airlines
Deal found 5/2$153
Thu 5/1611:06 pmSTL - PDX
1 stop26h 37mMultiple Airlines
Tue 5/2112:00 pmPDX - STL
1 stop20h 46mMultiple Airlines
Deal found 5/3$156
Wed 5/157:51 pmSTL - PDX
1 stop28h 13mFrontier
Mon 5/2012:43 amPDX - STL
1 stop10h 26mFrontier
Deal found 5/2$169
Fri 5/174:05 pmSTL - PDX
1 stop10h 26mSpirit Airlines
Mon 5/205:20 amPDX - STL
1 stop7h 54mSpirit Airlines
Deal found 5/1$170
Thu 5/910:59 pmSTL - PDX
1 stop12h 16mFrontier
Sat 5/1112:59 amPDX - STL
1 stop11h 30mFrontier
Deal found 5/2$174

One-way flights to Portland from St. Louis

Search for one-way flight options from St. Louis to Portland. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Users traveling one-way from St. Louis to Portland can select one of these great deals. Users needing a return flight from St. Louis to Portland should utilize the search form above.
Wed 5/1511:36 amSTL - PDX
1 stop14h 31mSpirit Airlines
Deal found 5/2$44
Mon 6/34:05 pmSTL - PDX
1 stop21h 00mSpirit Airlines
Deal found 5/2$70
Fri 5/314:05 pmSTL - PDX
1 stop10h 26mSpirit Airlines
Deal found 5/2$84
Thu 5/305:01 pmSTL - PDX
1 stop7h 03mFrontier
Deal found 5/2$90
Sat 5/188:04 pmSTL - PDX
1 stop15h 07mFrontier
Deal found 5/2$95
Tue 6/410:44 pmSTL - PDX
1 stop10h 06mFrontier
Deal found 5/2$96
Fri 5/107:51 pmSTL - PDX
1 stop15h 29mFrontier
Deal found 5/2$99
Sun 9/87:29 pmSTL - PDX
1 stop22h 25mFrontier
Deal found 5/2$100
Tue 5/287:23 pmSTL - PDX
2 stops25h 57mFrontier
Deal found 5/2$105

Find flights from St. Louis to Portland within your budget

Customize your flight search to find flights from St. Louis to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$94 - $313

Route

Depart

Return

Price

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/15

1 stop14h 31m

Portland

Tue 5/21

1 stop16h 49m

$94

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/15

1 stop25h 29m

Portland

Tue 5/21

1 stop16h 49m

$110

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/15

1 stop14h 31m

Portland

Mon 5/20

1 stop10h 26m

$141

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/15

1 stop14h 31m

Portland

Sun 5/19

1 stop6h 48m

$149

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/15

1 stop14h 31m

Portland

Mon 5/20

2 stops18h 34m

$153

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 9/26

1 stop9h 47m

Portland

Mon 9/30

1 stop15h 48m

$168

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/15

1 stop28h 13m

Portland

Mon 5/20

1 stop10h 26m

$169

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 5/23

1 stop7h 06m

Portland

Mon 5/27

1 stop9h 16m

$280

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 7/9

1 stop7h 16m

Portland

Fri 7/12

1 stop8h 28m

$313

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to book a flight from St. Louis to Portland?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Portland. Price data was last updated on January 28, 2024.
Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from St. Louis to Portland?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Portland. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Portland flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Portland by month

Plan your trip from St. Louis to Portland by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Portland is currently $87 while a round-trip flight costs $175. Price data was last updated on April 28, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Portland (average of $276). Flying from St. Louis to Portland in July is currently the most expensive (average of $408). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$276

February

$306

March

$336

April

$303

May

$336

June

$383

July

$408

August

$344

September

$295

October

$276

November

$298

December

$292

Temperature and rainfall in Portland by month

Plan your trip to Portland by taking into account the average temperature and rainfall totals by month.

PDX

Temperature

41 - 69.8 °F

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated May 3, 2024.
Read through reviews of airlines operating flights from St. Louis to Portland, such as Delta, Spirit Airlines and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,128 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,848 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,755 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Sun Country Air
7.3
Good
649 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Spirit Airlines
6.4
Okay
8,730 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Portland for under $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Portland for under $100. The cheapest flight booked recently is on Spirit Airlines for just $94, but on average you can expect to pay $164.

  • Are there last-minute flights available from St. Louis to Portland for under $100?

    There are currently 20+ open flights from St. Louis to Portland within the next 7 days for less than $100.

  • What are the cheapest airlines flying from St. Louis to Portland round-trip?

    Currently priced at $94, Spirit Airlines will fly you from St. Louis to Portland and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Frontier for as low as $168. These flights start at 78% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Portland one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $44. Frontier flights start at $90 while deals on American Airlines start at $140 one-way.

  • What are the most popular airlines that fly from St. Louis to Portland?

    When booking a flight from St. Louis to Portland, you may want to consider flying on American Airlines, Alaska Airlines or Delta as they are the most popular for this route.

  • What does STL to PDX mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Portland Airport flight would often be abbreviated as a STL to PDX flight.

  • Where are the most common layover locations when flying from St. Louis to Portland?

    St. Louis to Portland flights have a layover in Denver most of the time.

  • What are some popular things to do or see while on a layover in Denver?

    Denver travelers tend to visit Coors Field, 16th Street Mall, and Civic Center Park more than anywhere else. Coors Field, 16th Street Mall, and Civic Center Park can be accessed by traveling approximately 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl. Those looking to explore during their layover in Denver can rent a car from Denver Intl for about $44 per day.

  • Where are the least popular layover locations for St. Louis to Portland flights?

    Flights departing from St. Louis and landing in Portland layover in Salt Lake City least frequently.

  • Can I find deals for flights from St. Louis to Portland that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Portland flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Portland with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Portland flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Portland that include hotel bookings?

    Yes. In addition to deals on St. Louis to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Portland.

  • Can I find deals for business class flights from St. Louis to Portland?

    Yes. Cheapflights offers flight deals from St. Louis to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Portland that allow pets onboard?

    Many airlines flying from St. Louis to Portland offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Portland?

    Yes, you can often find last-minute deals on St. Louis to Portland flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Portland flight deals updated?

    The St. Louis to Portland flight deals you see on this page were last updated on 5/3.

See more FAQs

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See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from St. Louis to Portland

Discover the top 6 airlines that operate flights from St. Louis to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$111Average$225FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$113Average$214FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapest$265Average$408FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapest$295Average$460FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$296Average$419FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$306Average$462FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from St. Louis to Portland by cabin class

Find flights from St. Louis to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from St. Louis to Portland

Find hourly flight availability from St. Louis to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 3, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
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Weekly flight availability from St. Louis to Portland

Explore weekly flight availability from St. Louis to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 3, 2024.
Sunday1daily flight
Monday0daily flights
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