$137+ Cheap flights from Knoxville to Portland (TYS - PDX)
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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PDX
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
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Cheapest flights from Knoxville to PortlandExplore the most affordable flight options available from Knoxville to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on März 23, 2026.
Explore the most affordable flight options available from Knoxville to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on März 23, 2026.
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/298:32 pm
TYS
- PDX
1 stop23h 25m
Frontier
Do 8/1312:26 pm
PDX
- TYS
1 stop28h 11m
Frontier
Deal found 3/20![Frontier logo]()
$281
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/56:00 am
TYS
- PDX
1 stop8h 01m
American Airlines
Sa 5/911:47 pm
PDX
- TYS
1 stop8h 31m
American Airlines
Deal found 3/23![American Airlines logo]()
$340
This CheapOair deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/278:32 pm
TYS
- PDX
1 stop23h 14m
Frontier
Di 6/25:46 pm
PDX
- TYS
1 stop22h 47m
Frontier
Deal found 3/19![Frontier logo]()
$342
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/155:53 pm
TYS
- PDX
1 stop7h 41m
United Airlines
Mi 4/2210:50 am
PDX
- TYS
1 stop9h 18m
United Airlines
Deal found 3/19![United Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/155:40 am
TYS
- PDX
1 stop8h 01m
Delta
Di 4/2112:30 am
PDX
- TYS
2 stops12h 22m
Delta
Deal found 3/19![Delta logo]()
$380
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/276:20 pm
TYS
- PDX
1 stop8h 36m
American Airlines
Mi 6/310:59 pm
PDX
- TYS
1 stop9h 00m
American Airlines
Deal found 3/20![American Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/144:09 pm
TYS
- PDX
1 stop9h 41m
American Airlines
Di 5/196:00 am
PDX
- TYS
1 stop9h 04m
American Airlines
Deal found 3/19![American Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/54:38 pm
TYS
- PDX
2 stops10h 15m
Delta
Sa 5/911:12 pm
PDX
- TYS
2 stops10h 58m
Delta
Deal found 3/20![Delta logo]()
$391
Best flights from Knoxville to PortlandDiscover carefully curated flight deals from Knoxville to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated März 23, 2026.
Discover carefully curated flight deals from Knoxville to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated März 23, 2026.
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/271:59 pm
TYS
- PDX
2 stops11h 03m
Delta
Di 6/25:51 pm
PDX
- TYS
2 stops12h 43m
Delta
Deal found 3/19![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/135:55 pm
TYS
- PDX
1 stop9h 00m
United Airlines
Di 5/1912:46 pm
PDX
- TYS
1 stop6h 37m
United Airlines
Deal found 3/21![United Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/15:06 pm
TYS
- PDX
1 stop8h 50m
American Airlines
Mi 5/61:52 pm
PDX
- TYS
1 stop7h 04m
American Airlines
Deal found 3/20![American Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/55:54 pm
TYS
- PDX
2 stops8h 59m
Delta
Sa 5/95:01 pm
PDX
- TYS
2 stops13h 33m
Delta
Deal found 3/18![Delta logo]()
$391
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/133:05 pm
TYS
- PDX
1 stop9h 57m
Delta
Di 5/198:11 pm
PDX
- TYS
2 stops11h 58m
Delta
Deal found 3/22![Delta logo]()
$392
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 9/184:56 pm
TYS
- PDX
1 stop6h 59m
United Airlines
Di 9/227:00 am
PDX
- TYS
1 stop6h 59m
United Airlines
Deal found 3/21![United Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 5/235:57 pm
TYS
- PDX
1 stop7h 34m
United Airlines
Mi 5/2711:05 am
PDX
- TYS
2 stops9h 07m
United Airlines
Deal found 3/21![United Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/73:05 pm
TYS
- PDX
2 stops11h 39m
Delta
So 5/1011:12 pm
PDX
- TYS
2 stops10h 58m
Delta
Deal found 3/22![Delta logo]()
$468
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/166:45 am
TYS
- PDX
1 stop9h 09m
Delta
So 9/2010:55 pm
PDX
- TYS
1 stop8h 15m
Delta
Deal found 3/21![Delta logo]()
$478
Last-minute flights from Knoxville to PortlandDiscover last-minute flight deals from Knoxville to Portland. Data last updated März 23, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Portland. Data last updated März 23, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/96:00 am
TYS
- PDX
1 stop8h 01m
American Airlines
Mo 4/1310:23 pm
PDX
- TYS
1 stop10h 22m
American Airlines
Deal found 3/23![American Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/155:53 pm
TYS
- PDX
1 stop7h 41m
United Airlines
Mi 4/2210:50 am
PDX
- TYS
1 stop9h 18m
United Airlines
Deal found 3/19![United Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/155:40 am
TYS
- PDX
1 stop8h 01m
Delta
Di 4/2112:30 am
PDX
- TYS
2 stops12h 22m
Delta
Deal found 3/19![Delta logo]()
$380
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/154:30 pm
TYS
- PDX
1 stop9h 24m
United Airlines
Sa 4/187:00 am
PDX
- TYS
1 stop8h 15m
United Airlines
Deal found 3/19![United Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 4/185:15 pm
TYS
- PDX
1 stop8h 43m
United Airlines
Sa 4/2511:59 pm
PDX
- TYS
1 stop7h 09m
United Airlines
Deal found 3/21![United Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 4/187:50 am
TYS
- PDX
2 stops12h 42m
Delta
Sa 4/256:00 am
PDX
- TYS
2 stops12h 20m
Delta
Deal found 3/21![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 4/197:00 am
TYS
- PDX
1 stop7h 46m
United Airlines
So 4/2611:59 pm
PDX
- TYS
1 stop7h 09m
United Airlines
Deal found 3/22![United Airlines logo]()
$487
This American Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/296:00 am
TYS
- PDX
1 stop8h 01m
American Airlines
Mi 5/1311:47 pm
PDX
- TYS
1 stop8h 31m
American Airlines
Deal found 3/19![American Airlines logo]()
$418
One-way flights from Knoxville to PortlandSearch for one-way flight options from Knoxville to Portland. Find affordable one-way fares based on user searches. Data last updated März 23, 2026.
Search for one-way flight options from Knoxville to Portland. Find affordable one-way fares based on user searches. Data last updated März 23, 2026.
This CheapOair deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/228:32 pm
TYS
- PDX
1 stop23h 14m
Frontier
Deal found 3/21![Frontier logo]()
$137
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 4/214:09 pm
TYS
- PDX
1 stop9h 40m
American Airlines
Deal found 3/23![American Airlines logo]()
$147
This CheapOair deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 6/18:32 pm
TYS
- PDX
1 stop23h 29m
Frontier
Deal found 3/19![Frontier logo]()
$157
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 4/215:53 pm
TYS
- PDX
1 stop7h 41m
United Airlines
Deal found 3/23![United Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 6/166:30 am
TYS
- PDX
1 stop8h 08m
United Airlines
Deal found 3/23![United Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 5/317:00 am
TYS
- PDX
2 stops37h 24m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$238
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 6/193:54 pm
TYS
- PDX
2 stops9h 08m
Delta
Deal found 3/22![Delta logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/2210:03 pm
TYS
- PDX
2 stops42h 51m
Allegiant Air
Deal found 3/21![Allegiant Air logo]()
$263
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 6/198:12 pm
TYS
- PDX
1 stop7h 38m
American Airlines
Deal found 3/20![American Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 6/16:00 am
TYS
- PDX
2 stops13h 46m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$273
Find flight deals from Knoxville to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) 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 März 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (CheapOair) |
One-way from | $137 (CheapOair) |
Popular in | December |
Cheapest in | August |
Average price | $570 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville 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 2,558,603 searches. Data last updated März 23, 2026.
Use the filters below to find and compare flights from Knoxville to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Mi 5/27
1:59 pm-10:02 pm
2 stops11h 03m
Portland
Di 6/2
5:51 pm-9:34 am
2 stops12h 43m
$386
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Mi 5/13
5:55 pm-11:55 pm
1 stop9h 00m
Portland
Di 5/19
12:46 pm-10:23 pm
1 stop6h 37m
$387
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Di 5/5
5:54 pm-11:53 pm
2 stops8h 59m
Portland
Sa 5/9
5:01 pm-9:34 am
2 stops13h 33m
$391
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Mi 5/13
3:05 pm-10:02 pm
1 stop9h 57m
Portland
Di 5/19
8:11 pm-11:09 am
2 stops11h 58m
$392
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Fr 5/1
5:06 pm-10:56 pm
1 stop8h 50m
Portland
Mi 5/6
1:52 pm-11:56 pm
1 stop7h 04m
$416
Quickest round-trip
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Fr 9/18
4:56 pm-8:55 pm
1 stop6h 59m
Portland
Di 9/22
7:00 am-4:59 pm
1 stop6h 59m
$457
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Sa 5/23
5:57 pm-10:31 pm
1 stop7h 34m
Portland
Mi 5/27
11:05 am-11:12 pm
2 stops9h 07m
$462
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Do 5/7
3:05 pm-11:44 pm
2 stops11h 39m
Portland
So 5/10
11:12 pm-1:10 pm
2 stops10h 58m
$468
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Mi 9/16
6:45 am-12:54 pm
1 stop9h 09m
Portland
So 9/20
10:55 pm-10:10 am
1 stop8h 15m
$478
Cheapest one-way
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Fr 5/22
8:32 pm-4:46 pm
1 stop23h 14m
$137
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Portland in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Portland flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Knoxville to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Knoxville with our price prediction graph.
TYS-PDX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Knoxville to Portland
How far ahead should I book a flight from Knoxville to Portland?
Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Portland. Price data was last updated on March 13, 2026.
Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Knoxville to Portland?
Currently, August is the cheapest month in which you can book a flight from Knoxville to Portland (average of $135). Flying from Knoxville to Portland in March is currently the most expensive (average of $318). 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.
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 März 23, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Knoxville to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.9
Food
7.2
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Pacific City
Astoria
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Alternative routes for Knoxville to Portland
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Knoxville and Portland flights
Browse other Knoxville and Portland flight options. Last updated on März 23, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on März 23, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on März 23, 2026.
Top 3 airlines flying from Knoxville to Portland
Discover the top 3 airlines that operate flights from Knoxville 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 2,558,603 searches. Data last updated März 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$250 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$279 | Average$414 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$328 | Average$536 | FlexibilityNo cancel fee | On-time69% |