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Cheap flights from Missoula to St. Louis (MSO - STL) from $268

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. 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.
MSO — STL
May 7 — May 141
From?
To?
Tue 5/7
Tue 5/14
1 adult, Economy
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The best prices from Missoula Johnson-Bell Field to Lambert-St Louis are usually found in August or September, booked 50 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Missoula to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to St. Louis (STL). 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 2, 2024.

Popular in

March

Cheapest in

August

Average price

$629

Round-trip from

$322
High demand for flights, 36% potential price rise
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Best time to find cheap flights, 37% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Missoula Johnson-Bell Field to Lambert-St Louis
Search Deals

What is the cheapest day to fly round-trip from Missoula to St. Louis?

Flights from Missoula to St. Louis are found to be more expensive on Sunday. 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 St. Louis.

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

To save up to 60% on this flight, we recommend booking at least 51 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Missoula to St. Louis from $493 1-2 weeks out and tickets from $802 for flights departing within the next 72 hours.

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

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, August can be a great choice for travel to St. Louis. Flights to St. Louis from Missoula in August are about $562 on average during August, but can be found for as low as $334.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 24% on flights from Missoula to St. Louis by exploring options for tickets at noon.

Cheap Delta flights from Missoula to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Missoula and St. Louis. 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 2,899,487 searches. Data last updated May 2, 2024.
Peruse some of the lowest-priced Delta flights we've found from Missoula to St. Louis. Be sure to come back soon if the deals available don't appeal to you at this time.
Wed 5/225:50 amMSO - STL
1 stop7h 25mDelta
Fri 5/316:50 pmSTL - MSO
1 stop6h 30mDelta
Deal found 5/1$448
Wed 5/225:40 amMSO - STL
2 stops9h 17mDelta
Sat 6/15:30 pmSTL - MSO
1 stop5h 59mDelta
Deal found 5/1$453
Wed 5/225:40 amMSO - STL
2 stops9h 17mDelta
Fri 5/315:37 pmSTL - MSO
2 stops7h 43mDelta
Deal found 5/1$458
Fri 7/125:50 amMSO - STL
2 stops10h 14mDelta
Mon 7/152:10 pmSTL - MSO
2 stops11h 07mDelta
Deal found 5/1$518

Cheap United Airlines flights from Missoula to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Missoula and St. Louis. 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 2,899,487 searches. Data last updated May 2, 2024.
Some of the best deals we've found on United Airlines flights traveling from Missoula to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Tue 8/202:33 pmMSO - STL
2 stops18h 34mUnited Airlines
Sat 8/248:05 amSTL - MSO
2 stops14h 27mUnited Airlines
Deal found 4/30$474
Mon 5/205:15 pmMSO - STL
2 stops20h 08mUnited Airlines
Fri 5/241:42 pmSTL - MSO
1 stop24h 37mUnited Airlines
Deal found 5/1$610
Thu 5/95:15 pmMSO - STL
1 stop26h 54mUnited Airlines
Sun 5/126:00 amSTL - MSO
2 stops16h 31mUnited Airlines
Deal found 4/30$621
Thu 5/95:15 pmMSO - STL
1 stop26h 54mUnited Airlines
Sun 5/124:51 pmSTL - MSO
1 stop5h 40mUnited Airlines
Deal found 4/30$655
Thu 5/95:15 pmMSO - STL
2 stops21h 31mUnited Airlines
Sun 5/126:00 amSTL - MSO
2 stops16h 31mUnited Airlines
Deal found 4/30$695
Mon 5/205:15 pmMSO - STL
2 stops21h 31mUnited Airlines
Fri 5/244:55 pmSTL - MSO
2 stops21h 24mUnited Airlines
Deal found 5/1$714

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

Find cheap flight options from Missoula to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Prices were last updated on May 2, 2024.
Scroll through some of the best deals on flights from Missoula to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 5/203:09 pmMSO - STL
1 stop21h 00mFrontier
Fri 5/248:45 pmSTL - MSO
1 stop18h 20mFrontier
Deal found 5/1$268
Wed 5/226:00 amMSO - STL
1 stop7h 13mAmerican Airlines
Sat 6/15:55 amSTL - MSO
2 stops16h 39mAmerican Airlines
Deal found 5/2$395
Wed 5/226:00 amMSO - STL
1 stop7h 13mAmerican Airlines
Sat 6/15:21 amSTL - MSO
1 stop8h 37mAmerican Airlines
Deal found 5/2$437
Wed 5/225:50 amMSO - STL
1 stop7h 25mDelta
Fri 5/315:37 pmSTL - MSO
1 stop6h 52mDelta
Deal found 5/2$443
Wed 5/226:20 pmMSO - STL
1 stop5h 26mDelta
Fri 5/313:27 pmSTL - MSO
2 stops9h 02mDelta
Deal found 5/2$448
Wed 5/225:40 amMSO - STL
2 stops9h 17mDelta
Fri 5/313:27 pmSTL - MSO
2 stops9h 02mDelta
Deal found 5/2$453
Wed 5/225:40 amMSO - STL
2 stops9h 17mDelta
Fri 5/315:37 pmSTL - MSO
2 stops7h 43mDelta
Deal found 5/1$458
Mon 5/205:15 pmMSO - STL
2 stops20h 08mUnited Airlines
Fri 5/241:42 pmSTL - MSO
1 stop24h 37mUnited Airlines
Deal found 5/1$610
Thu 5/95:15 pmMSO - STL
1 stop26h 54mUnited Airlines
Sun 5/126:00 amSTL - MSO
2 stops16h 31mUnited Airlines
Deal found 4/30$621

Missoula to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Missoula and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 2, 2024.
Scroll through some of the best deals on flights from Missoula to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 5/203:09 pmMSO - STL
1 stop21h 00mFrontier
Fri 5/248:45 pmSTL - MSO
1 stop18h 20mFrontier
Deal found 5/1$268
Wed 5/226:00 amMSO - STL
1 stop7h 13mAmerican Airlines
Sat 6/15:55 amSTL - MSO
2 stops16h 39mAmerican Airlines
Deal found 5/2$395
Wed 5/226:00 amMSO - STL
1 stop7h 13mAmerican Airlines
Sat 6/15:21 amSTL - MSO
1 stop8h 37mAmerican Airlines
Deal found 5/2$437
Wed 5/225:50 amMSO - STL
1 stop7h 25mDelta
Fri 5/315:37 pmSTL - MSO
1 stop6h 52mDelta
Deal found 5/2$443
Wed 5/226:20 pmMSO - STL
1 stop5h 26mDelta
Fri 5/313:27 pmSTL - MSO
2 stops9h 02mDelta
Deal found 5/2$448
Wed 5/225:40 amMSO - STL
2 stops9h 17mDelta
Fri 5/313:27 pmSTL - MSO
2 stops9h 02mDelta
Deal found 5/2$453
Wed 5/225:40 amMSO - STL
2 stops9h 17mDelta
Fri 5/315:37 pmSTL - MSO
2 stops7h 43mDelta
Deal found 5/1$458
Tue 8/202:33 pmMSO - STL
2 stops18h 34mUnited Airlines
Sat 8/248:05 amSTL - MSO
2 stops14h 27mUnited Airlines
Deal found 4/30$474
Fri 7/125:50 amMSO - STL
2 stops10h 14mDelta
Mon 7/152:10 pmSTL - MSO
2 stops11h 07mDelta
Deal found 5/1$518

Missoula to St. Louis flights leaving soon

Find last-minute flight options from Missoula to St. Louis 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 2,899,487 searches. Data last updated May 2, 2024.
Check out these flights departing soon from Missoula to St. Louis. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 5/95:15 pmMSO - STL
1 stop26h 54mUnited Airlines
Sun 5/126:00 amSTL - MSO
2 stops16h 31mUnited Airlines
Deal found 4/30$621
Thu 5/95:15 pmMSO - STL
1 stop26h 54mUnited Airlines
Sun 5/124:51 pmSTL - MSO
1 stop5h 40mUnited Airlines
Deal found 4/30$655
Thu 5/95:15 pmMSO - STL
2 stops21h 31mUnited Airlines
Sun 5/126:00 amSTL - MSO
2 stops16h 31mUnited Airlines
Deal found 4/30$695

Find flights from Missoula to St. Louis within your budget

Customize your flight search to find flights from Missoula to St. Louis 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 2,899,487 searches. Data last updated May 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$268 - $610

Route

Depart

Return

Price

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Mon 5/20

1 stop21h 00m

Lambert-St Louis

Fri 5/24

1 stop18h 20m

$268

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Wed 5/22

1 stop7h 25m

Lambert-St Louis

Fri 5/31

1 stop6h 30m

$448

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Wed 5/22

2 stops9h 17m

Lambert-St Louis

Sat 6/1

1 stop5h 59m

$453

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Wed 5/22

2 stops9h 17m

Lambert-St Louis

Fri 5/31

2 stops7h 43m

$458

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Tue 8/20

2 stops18h 34m

Lambert-St Louis

Sat 8/24

2 stops14h 27m

$474

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Fri 7/12

2 stops10h 14m

Lambert-St Louis

Mon 7/15

2 stops11h 07m

$518

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Sun 7/14

1 stop8h 50m

Lambert-St Louis

Sat 7/20

2 stops16h 15m

$566

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Sun 7/14

1 stop6h 20m

Lambert-St Louis

Sat 7/20

1 stop10h 56m

$601

Missoula Johnson-Bell FieldLambert-St Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Mon 5/20

2 stops20h 08m

Lambert-St Louis

Fri 5/24

1 stop24h 37m

$610

Flights are sorted by cheapest first

Deals found on 5/1

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

Use this chart to determine the optimal time to book a round-trip flight from Missoula to St. Louis. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from Missoula to St. Louis, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

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

Average price of flights to St. Louis by month

Plan your trip from Missoula to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Missoula to St. Louis is currently $0 while a round-trip flight costs $488. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from Missoula to St. Louis (average of $322). Flying from Missoula to St. Louis in July is currently the most expensive (average of $377). 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

$326

February

$331

March

$357

April

$337

May

$345

June

$371

July

$377

August

$336

September

$322

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 2, 2024.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Missoula to St. Louis to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,874 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.1
Very good
10,874 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
11,159 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,788 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Frontier
6.3
Okay
4,108 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Missoula to St. Louis. 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 Missoula to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Missoula to St. Louis for under $300. The cheapest flight booked recently is on Frontier for just $268, but on average you can expect to pay $524.

  • Are there last-minute flights available from Missoula to St. Louis for under $700?

    There are currently 3+ open flights from Missoula to St. Louis within the next 7 days for less than $700.

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

    Our cheapest airline available from Missoula to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $268 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $448 and $474 round-trip. These flights start at 52% lower than the current average price 3 months from now.

  • What does MSO to STL mean?

    Great question - MSO to STL just means Missoula Johnson-Bell Field Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your Missoula to St. Louis 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 Missoula to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Missoula to St. Louis 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 Missoula to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Missoula to St. Louis 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 Missoula to St. Louis that allow pets onboard?

    Many airlines flying from Missoula to St. Louis 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 Missoula to St. Louis?

    Yes, you can often find last-minute deals on Missoula to St. Louis 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 Missoula to St. Louis flight deals updated?

    The Missoula to St. Louis flight deals you see on this page were last updated on 5/2.

See more FAQs

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Alternative routes for Missoula to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 2 airlines flying from Missoula to St. Louis

Discover the top 2 airlines that operate flights from Missoula to St. Louis. 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 2,899,487 searches. Data last updated May 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$345Average$563FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$418Average$582FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Missoula to St. Louis by cabin class

Find flights from Missoula to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Missoula to St. Louis?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Missoula to St. Louis. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Missoula to St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from Missoula to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Missoula to St. Louis with no change fees?

Yes! Cheapflights helps users easily find flights from Missoula to St. Louis with no change fees.

Can Cheapflights notify me if prices for flights from Missoula to St. Louis become cheaper?

Of course! You can now track prices for flights from Missoula to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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