$150+ Cheap flights from Knoxville to Portland (TYS - PDX)
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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PDX
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Portland with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to Portland
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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 September 15, 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 September 15, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/283:00 pm -
1 stop7h 29m
Mon 11/26:00 am -
1 stop7h 42m
Deal found 9/14![American Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/226:55 pm -
1 stop8h 04m
Mon 10/2610:30 pm -
1 stop8h 08m
Deal found 9/14![American Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/3012:53 pm -
1 stop10h 51m
Mon 11/211:49 pm -
1 stop9h 23m
Deal found 9/14![American Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 10/284:11 pm -
1 stop8h 38m
Mon 11/211:00 pm -
1 stop8h 45m
Deal found 9/10![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 11/115:05 pm -
1 stop7h 08m
Sat 11/149:00 am -
2 stops9h 57m
Deal found 9/10![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/34:48 pm -
1 stop10h 19m
Wed 10/78:35 am -
1 stop8h 43m
Deal found 9/10![American Airlines logo]()
$376
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 11/61:42 pm -
1 stop10h 00m
Fri 11/131:22 pm -
1 stop7h 25m
Deal found 9/14![American Airlines logo]()
$383
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/309:00 am -
1 stop7h 22m
Tue 11/310:47 am -
2 stops10h 12m
Deal found 9/10![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/309:00 am -
1 stop7h 22m
Fri 11/611:30 pm -
1 stop7h 37m
Deal found 9/10![United Airlines logo]()
$405
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 September 15, 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 September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 11/105:05 pm -
1 stop7h 08m
Wed 11/1111:30 pm -
1 stop7h 23m
Deal found 9/14![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:30 pm -
2 stops10h 55m
Mon 10/2611:35 pm -
2 stops9h 45m
Deal found 9/14![Southwest logo]()
$415
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 10/2912:06 pm -
1 stop10h 03m
Mon 11/211:00 pm -
1 stop8h 45m
Deal found 9/13![Delta logo]()
$467
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/306:45 am -
2 stops9h 37m
Fri 11/611:30 pm -
1 stop7h 37m
Deal found 9/10![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:05 am -
2 stops9h 05m
Sun 11/85:10 am -
2 stops10h 35m
Deal found 9/13![Southwest logo]()
$442
This Delta deal was found by Cheapflights users on 9/13. 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.
Tue 12/157:59 am -
1 stop7h 49m
Mon 12/2812:00 pm -
1 stop6h 25m
Deal found 9/13![Delta logo]()
$467
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/286:45 am -
2 stops14h 35m
Mon 11/211:30 pm -
2 stops9h 00m
Deal found 9/10![United Airlines logo]()
$483
Last-minute flights from Knoxville to PortlandDiscover last-minute flight deals from Knoxville to Portland. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Portland. Data last updated September 15, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/34:48 pm -
1 stop10h 19m
Wed 10/78:35 am -
1 stop8h 43m
Deal found 9/10![American Airlines logo]()
$376
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/226:55 pm -
1 stop8h 04m
Mon 10/2610:30 pm -
1 stop8h 08m
Deal found 9/14![American Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:30 pm -
2 stops10h 55m
Mon 10/2611:35 pm -
2 stops9h 45m
Deal found 9/14![Southwest logo]()
$415
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/283:00 pm -
1 stop7h 29m
Mon 11/26:00 am -
1 stop7h 42m
Deal found 9/14![American Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 10/284:11 pm -
1 stop8h 38m
Mon 11/211:00 pm -
1 stop8h 45m
Deal found 9/10![Delta logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/3012:53 pm -
1 stop10h 51m
Mon 11/211:49 pm -
1 stop9h 23m
Deal found 9/14![American Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/309:00 am -
1 stop7h 22m
Tue 11/310:47 am -
2 stops10h 12m
Deal found 9/10![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/309:00 am -
1 stop7h 22m
Fri 11/611:30 pm -
1 stop7h 37m
Deal found 9/10![United Airlines logo]()
$405
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 September 15, 2026.
Search for one-way flight options from Knoxville to Portland. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 10/132:38 pm -
1 stop7h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$150
This Delta deal was found by Cheapflights users on 9/14. 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.
Mon 10/56:30 am -
1 stop7h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$171
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/206:55 pm -
1 stop8h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Mon 10/127:00 am -
2 stops30h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$236
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/209:45 am -
2 stops14h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$242
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Sat 10/103:00 pm -
1 stop9h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![American Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Tue 10/137:04 pm -
3 stops43h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$266
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:55 pm -
2 stops9h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Southwest logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Sun 10/117:58 pm -
3 stops41h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$274
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $320 (American Airlines) |
One-way from | $150 (Delta) |
Popular in | December |
Cheapest in | November |
Average price | $547 |
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 7,457,451 searches. Data last updated September 15, 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 Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Tue 10/13
2:38 pm-7:09 pm
1 stop7h 31m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$150
Quickest round-trip
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Mon 10/5
6:30 am-10:49 am
1 stop7h 19m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$171
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Mon 10/12
7:16 pm-11:44 pm
1 stop7h 28m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$234
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Mon 10/12
7:00 am-10:54 am
2 stops30h 54m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$236
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Tue 10/20
9:45 am-9:00 pm
2 stops14h 15m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$242
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Tue 10/13
7:04 pm-11:26 am
3 stops43h 22m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$266
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Tue 10/13
3:20 pm-10:15 pm
2 stops9h 55m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$269
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Sat 10/10
2:55 pm-9:30 pm
2 stops9h 35m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$269
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Sun 10/11
6:30 am-10:54 am
1 stop7h 24m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$302
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Sat 10/3
6:03 pm-10:23 pm
1 stop7h 20m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$304
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 September.
| 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?
Booking 30 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, November is the cheapest month in which you can book a flight from Knoxville to Portland (average of $354). Flying from Knoxville to Portland in December is currently the most expensive (average of $625). 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.
How much does it cost to fly round-trip from Knoxville to Portland?
Airfare is below average for this route at the moment.
Knoxville to Portland flights typically cost between $446 and $595 in October.The cheapest round-trip price found within the last 5 days was $320 on American Airlines (Oct 28-Nov 2).
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 September 15, 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.
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Cannon Beach
Vancouver
Kelso
Troutdale
Clackamas
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
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Knoxville and Portland flights
Browse other Knoxville and Portland flight options. Last updated on September 15, 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 September 15, 2026.
Popular flight searches
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 September 15, 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$319 | Average$495 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$354 | Average$612 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$358 | Average$547 | FlexibilityNo cancel fee | On-time69% |