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Cheap flights from Portland to Knoxville (PDX - TYS) from $120

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 5/24. 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.
PDX — TYS
May 8 — May 151
From?
To?
Wed 5/8
Wed 5/15
1 adult, Economy
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The best prices from Portland to Knoxville McGhee Tyson are usually found in October or September, booked 17 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap flight deals from Portland to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Knoxville (TYS). 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

June

Cheapest in

October

Round-trip from

$302

One-way from

$190
High demand for flights, 13% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Portland to Knoxville McGhee Tyson
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One-way flight from Portland to Knoxville McGhee Tyson
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What is the cheapest day to fly round-trip from Portland to Knoxville?

Thursday flights are generally found to be more expensive for flights from Portland to Knoxville. 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 Knoxville.

How far in advance should I book a flight from Portland to Knoxville?

Travelers have found it’s best to book a flight 18 days in advance to save up to 268% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 18 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland to Knoxville 1-2 weeks in advance for as low as $305, or $818 for flights within the next 24 hours.

What is the cheapest month to fly from Portland to Knoxville?

Our data shows that October tends to be the cheapest month to fly to Knoxville from Portland. Users have commonly found prices around $690 for the month, but tickets can be as low as $308. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Portland to Knoxville (PDX - TYS)?

When flying from Portland to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 9% versus a flight at noon.

Cheap Delta flights from Portland to Knoxville

Explore cheap flight options specifically provided by Delta for the route between Portland and Knoxville. 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.
Check out some of the cheapest Delta flights we've come across from Portland to Knoxville. Make sure to check back often as deals are often changing.
Thu 7/112:29 pmPDX - TYS
1 stop6h 24mDelta
Tue 7/165:20 amTYS - PDX
2 stops10h 21mDelta
Deal found 5/2$343
Fri 5/3110:47 pmPDX - TYS
1 stop7h 44mDelta
Fri 6/73:56 pmTYS - PDX
2 stops10h 21mDelta
Deal found 5/1$348
Mon 5/2712:40 amPDX - TYS
2 stops11h 04mDelta
Sat 6/12:53 pmTYS - PDX
1 stop6h 52mDelta
Deal found 5/3$383
Tue 5/1411:45 amPDX - TYS
1 stop9h 10mDelta
Wed 5/293:49 pmTYS - PDX
1 stop8h 48mDelta
Deal found 5/1$403
Mon 5/1312:40 amPDX - TYS
2 stops11h 04mDelta
Wed 5/292:39 pmTYS - PDX
1 stop9h 58mDelta
Deal found 5/1$408
Sat 5/1110:48 pmPDX - TYS
1 stop8h 23mDelta
Wed 5/152:39 pmTYS - PDX
1 stop7h 06mDelta
Deal found 5/1$413
Fri 5/1012:40 amPDX - TYS
2 stops10h 08mDelta
Wed 5/152:39 pmTYS - PDX
1 stop7h 06mDelta
Deal found 5/1$418
Sun 5/1910:47 pmPDX - TYS
1 stop8h 24mDelta
Sat 5/252:39 pmTYS - PDX
2 stops11h 46mDelta
Deal found 5/2$438
Fri 6/711:53 amPDX - TYS
2 stops9h 00mDelta
Sun 6/97:59 pmTYS - PDX
1 stop7h 15mDelta
Deal found 5/3$443

Cheap Frontier flights from Portland to Knoxville

Explore cheap flight options specifically provided by Frontier for the route between Portland and Knoxville. 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.
To aid your search, here are some of the cheapest Frontier flights we've found from Portland to Knoxville. Deals are refreshing constantly so come back soon for more options.
Thu 5/98:16 amPDX - TYS
1 stop22h 40mFrontier
Mon 5/1310:51 amTYS - PDX
1 stop16h 08mFrontier
Deal found 5/2$238
Sun 6/3012:49 amPDX - TYS
1 stop17h 50mFrontier
Sat 7/135:40 pmTYS - PDX
1 stop9h 00mFrontier
Deal found 5/2$361
Fri 5/3112:48 amPDX - TYS
1 stop12h 20mFrontier
Sat 6/85:51 pmTYS - PDX
1 stop9h 05mFrontier
Deal found 5/2$374
Fri 7/1212:48 amPDX - TYS
1 stop13h 02mFrontier
Sat 7/205:40 pmTYS - PDX
1 stop17h 39mFrontier
Deal found 5/2$382
Tue 5/2112:48 amPDX - TYS
1 stop12h 43mFrontier
Mon 5/276:35 pmTYS - PDX
1 stop8h 01mFrontier
Deal found 5/2$385
Wed 6/197:43 amPDX - TYS
1 stop8h 04mFrontier
Mon 6/2410:41 pmTYS - PDX
1 stop11h 09mFrontier
Deal found 5/2$387
Tue 5/2112:48 amPDX - TYS
1 stop12h 43mFrontier
Mon 5/276:35 pmTYS - PDX
2 stops20h 46mFrontier
Deal found 5/2$390
Fri 5/3112:48 amPDX - TYS
1 stop12h 20mFrontier
Sat 6/85:51 pmTYS - PDX
1 stop9h 05mFrontier
Deal found 5/2$398
Tue 6/1812:49 amPDX - TYS
1 stop14h 58mFrontier
Mon 6/2410:41 pmTYS - PDX
1 stop11h 09mFrontier
Deal found 5/2$517

Cheap Portland to Knoxville flights in May & June 2024

Find cheap flight options from Portland to Knoxville 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.
Check out some of the best flight deals from Portland to Knoxville in 2024. Check back regularly for other flight deals.
Sun 5/1910:12 amPDX - TYS
1 stop28h 26mFrontier
Sat 5/255:13 pmTYS - PDX
1 stop18h 58mFrontier
Deal found 5/3$217
Thu 5/98:16 amPDX - TYS
1 stop22h 40mFrontier
Mon 5/1310:51 amTYS - PDX
1 stop16h 08mFrontier
Deal found 5/2$238
Tue 5/288:07 amPDX - TYS
1 stop29h 24mFrontier
Sat 6/15:13 pmTYS - PDX
1 stop9h 30mFrontier
Deal found 5/3$269
Thu 5/3012:48 amPDX - TYS
1 stop11h 13mFrontier
Fri 6/710:32 pmTYS - PDX
1 stop12h 07mFrontier
Deal found 5/1$272
Sun 5/1910:12 amPDX - TYS
1 stop28h 26mFrontier
Sat 5/255:13 pmTYS - PDX
1 stop9h 30mFrontier
Deal found 5/2$296
Sat 6/19:55 pmPDX - TYS
1 stop9h 42mAmerican Airlines
Sat 6/86:24 pmTYS - PDX
1 stop9h 14mAmerican Airlines
Deal found 5/2$301
Fri 5/3111:53 amPDX - TYS
1 stop9h 25mAmerican Airlines
Fri 6/72:43 pmTYS - PDX
1 stop8h 14mAmerican Airlines
Deal found 5/1$331
Wed 5/225:10 amPDX - TYS
1 stop9h 31mAmerican Airlines
Wed 6/53:57 pmTYS - PDX
1 stop9h 04mAmerican Airlines
Deal found 5/2$333
Thu 6/2011:59 pmPDX - TYS
1 stop8h 14mMultiple Airlines
Tue 6/251:21 pmTYS - PDX
2 stops26h 48mMultiple Airlines
Deal found 5/2$338

Portland to Knoxville 2024 flight deals

Discover exclusive flight deals for travel between Portland and Knoxville 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.
Check out some of the best flight deals from Portland to Knoxville in 2024. Check back regularly for other flight deals.
Sun 5/1910:12 amPDX - TYS
1 stop28h 26mFrontier
Sat 5/255:13 pmTYS - PDX
1 stop18h 58mFrontier
Deal found 5/3$217
Thu 7/1812:48 amPDX - TYS
1 stop12h 54mFrontier
Sat 7/275:40 pmTYS - PDX
1 stop9h 00mFrontier
Deal found 5/2$220
Fri 7/199:19 amPDX - TYS
1 stop28h 31mFrontier
Sat 7/275:40 pmTYS - PDX
1 stop9h 00mFrontier
Deal found 5/2$230
Thu 5/98:16 amPDX - TYS
1 stop22h 40mFrontier
Mon 5/1310:51 amTYS - PDX
1 stop16h 08mFrontier
Deal found 5/2$238
Tue 5/288:07 amPDX - TYS
1 stop29h 24mFrontier
Sat 6/15:13 pmTYS - PDX
1 stop9h 30mFrontier
Deal found 5/3$269
Thu 5/3012:48 amPDX - TYS
1 stop11h 13mFrontier
Fri 6/710:32 pmTYS - PDX
1 stop12h 07mFrontier
Deal found 5/1$272
Sun 5/1910:12 amPDX - TYS
1 stop28h 26mFrontier
Sat 5/255:13 pmTYS - PDX
1 stop9h 30mFrontier
Deal found 5/2$296
Sat 6/19:55 pmPDX - TYS
1 stop9h 42mAmerican Airlines
Sat 6/86:24 pmTYS - PDX
1 stop9h 14mAmerican Airlines
Deal found 5/2$301
Tue 7/2312:59 amPDX - TYS
1 stop9h 27mAmerican Airlines
Fri 8/26:25 pmTYS - PDX
1 stop9h 01mAmerican Airlines
Deal found 5/2$303

Portland to Knoxville flights leaving soon

Find last-minute flight options from Portland to Knoxville 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.
Book one of these great deals on flights from Portland to Knoxville. It's wise to confirm all flight details are correct before booking.
Thu 5/98:16 amPDX - TYS
1 stop22h 40mFrontier
Mon 5/1310:51 amTYS - PDX
1 stop16h 08mFrontier
Deal found 5/2$238
Mon 5/1312:40 amPDX - TYS
2 stops11h 04mDelta
Wed 5/292:39 pmTYS - PDX
1 stop9h 58mDelta
Deal found 5/1$408
Sat 5/1110:48 pmPDX - TYS
1 stop8h 23mDelta
Wed 5/152:39 pmTYS - PDX
1 stop7h 06mDelta
Deal found 5/1$413
Fri 5/1012:40 amPDX - TYS
2 stops10h 08mDelta
Wed 5/152:39 pmTYS - PDX
1 stop7h 06mDelta
Deal found 5/1$418
Fri 5/109:55 pmPDX - TYS
1 stop7h 46mAmerican Airlines
Mon 5/136:31 pmTYS - PDX
1 stop7h 21mAmerican Airlines
Deal found 5/2$456
Sat 5/1111:45 amPDX - TYS
1 stop9h 06mDelta
Wed 5/152:39 pmTYS - PDX
1 stop9h 58mDelta
Deal found 5/2$458
Wed 5/811:45 amPDX - TYS
1 stop9h 06mDelta
Sat 5/117:30 amTYS - PDX
2 stops11h 42mDelta
Deal found 5/2$463
Wed 5/86:37 amPDX - TYS
2 stops12h 34mDelta
Sat 5/117:30 amTYS - PDX
2 stops11h 42mDelta
Deal found 5/2$468
Sat 5/1110:05 amPDX - TYS
2 stops10h 46mDelta
Wed 5/152:39 pmTYS - PDX
1 stop7h 06mDelta
Deal found 5/2$503

One-way flights to Knoxville from Portland

Search for one-way flight options from Portland to Knoxville. 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.
If you're seeking multiple options on one-way flights from Portland to Knoxville, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from Portland to Knoxville instead should update the search form at the top of page.
Fri 5/2412:48 amPDX - TYS
1 stop12h 20mFrontier
Deal found 5/2$120
Sat 5/259:55 pmPDX - TYS
1 stop9h 42mAmerican Airlines
Deal found 5/2$149
Wed 5/2212:33 amPDX - TYS
2 stops17h 32mFrontier
Deal found 5/2$166
Fri 5/2412:40 amPDX - TYS
2 stops9h 53mDelta
Deal found 5/2$179
Thu 5/2312:48 amPDX - TYS
1 stop15h 51mFrontier
Deal found 5/2$190
Sat 5/255:20 pmPDX - TYS
2 stops13h 11mDelta
Deal found 5/2$239
Fri 5/2410:47 pmPDX - TYS
1 stop7h 44mDelta
Deal found 5/2$309
Thu 5/231:59 pmPDX - TYS
1 stop6h 52mDelta
Deal found 5/2$329
Fri 5/246:07 pmPDX - TYS
2 stops13h 30mAlaska Airlines
Deal found 5/2$369

Find flights from Portland to Knoxville within your budget

Customize your flight search to find flights from Portland to Knoxville 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

$343 - $804

Route

Depart

Return

Price

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Thu 7/11

1 stop6h 24m

Knoxville McGhee Tyson

Tue 7/16

2 stops10h 21m

$343

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Fri 5/31

1 stop7h 44m

Knoxville McGhee Tyson

Fri 6/7

2 stops10h 21m

$348

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Fri 6/7

1 stop10h 10m

Knoxville McGhee Tyson

Sun 6/9

1 stop7h 44m

$356

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Thu 6/6

1 stop9h 43m

Knoxville McGhee Tyson

Sun 6/9

1 stop9h 14m

$358

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Sun 6/30

1 stop17h 50m

Knoxville McGhee Tyson

Sat 7/13

1 stop9h 00m

$361

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Fri 5/31

1 stop12h 20m

Knoxville McGhee Tyson

Sat 6/8

1 stop9h 05m

$374

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Thu 6/20

2 stops20h 34m

Knoxville McGhee Tyson

Tue 6/25

2 stops26h 48m

$378

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Mon 5/27

1 stop7h 02m

Knoxville McGhee Tyson

Sat 6/1

1 stop18h 58m

$562

PortlandKnoxville McGhee Tyson

PDX - TYS

PDXTYS

Portland

Sat 5/18

1 stop8h 11m

Knoxville McGhee Tyson

Sat 5/25

1 stop8h 19m

$804

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to book a flight from Portland to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Knoxville. Price data was last updated on January 28, 2024.
The best time to book flights from Portland to Knoxville is 17 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Portland to Knoxville?

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

Average price of flights to Knoxville by month

Plan your trip from Portland to Knoxville by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to Knoxville is currently $228 while a round-trip flight costs $432. Price data was last updated on April 28, 2024.

Currently, February is the cheapest month in which you can book a flight from Portland to Knoxville (average of $302). Flying from Portland to Knoxville in May is currently the most expensive (average of $388). 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

$304

February

$302

March

$370

April

$376

May

$388

June

$379

July

$351

August

$326

September

$328

October

$338

November

$373

December

$304

Temperature and rainfall in Knoxville by month

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

TYS

Temperature

39.2 - 78.8 °F

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated May 3, 2024.
Peruse reviews from past customers who have flown with Delta, Frontier and Alaska Airlines from Portland to Knoxville to help guide your decision. 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

Comfort

7.9

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

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

Comfort

7.9

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

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

Comfort

7.9

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

United Airlines
7.4
Good
11,134 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

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

Comfort

7.9

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

Frontier
6.3
Okay
4,100 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

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 Portland to Knoxville. 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 Portland to Knoxville for under $400 on Cheapflights?

    Yes, there are multiple flights from Portland to Knoxville for under $400. The cheapest flight booked recently is on Delta for just $343, but on average you can expect to pay $387.

  • Are there last-minute flights available from Portland to Knoxville for under $300?

    There are currently 20+ open flights from Portland to Knoxville within the next 7 days for less than $300.

  • What are the cheapest airlines flying from Portland to Knoxville round-trip?

    Cheapflights users have booked flights from Portland to Knoxville round-trip from $343. Other airlines that can offer you cheap pricing are American Airlines, from $356, and Frontier, from $361. Delta is 50% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Portland to Knoxville one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Portland to Knoxville for a low price.

  • What are the most popular airlines that fly from Portland to Knoxville?

    Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Portland to Knoxville.

  • What does PDX to TYS mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Portland Airport to Knoxville McGhee Tyson Airport flight would often be abbreviated as a PDX to TYS flight.

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

    The amount of baggage you can bring on your Portland to Knoxville 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 Portland to Knoxville with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to Knoxville 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 Portland to Knoxville that include hotel bookings?

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

  • How can I find direct flights from Portland to Knoxville?

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

  • Can I find deals for business class flights from Portland to Knoxville?

    Yes. Cheapflights offers flight deals from Portland to Knoxville 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 Portland to Knoxville that allow pets onboard?

    Many airlines flying from Portland to Knoxville 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 Portland to Knoxville?

    Yes, you can often find last-minute deals on Portland to Knoxville 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 Portland to Knoxville flight deals updated?

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

See more FAQs

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Alternative routes for Portland to Knoxville
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Portland to Knoxville

Discover the top 5 airlines that operate flights from Portland to Knoxville. 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$178Average$308FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapest$307Average$546FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$338Average$568FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$339Average$699FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$684Average$788FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from Portland to Knoxville by cabin class

Find flights from Portland to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
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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 Portland to Knoxville?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portland to Knoxville. 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 Portland to Knoxville?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to Knoxville.

Can Cheapflights find flights from Portland to Knoxville with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portland to Knoxville, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Portland to Knoxville become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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