$132+ Cheap flights from Knoxville to Seattle (TYS - SEA)
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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
5월 22 — 5월 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 SeattleExplore the most affordable flight options available from Knoxville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4월 22, 2026.
Explore the most affordable flight options available from Knoxville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4월 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
금 5/151:43 pm
TYS
- SEA
2 stops30h 54m
Multiple Airlines
토 5/237:50 pm
SEA
- TYS
1 stop15h 09m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/181:15 pm
TYS
- SEA
2 stops23h 34m
Multiple Airlines
일 5/243:19 pm
SEA
- TYS
1 stop25h 05m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 4/20. 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.
수 5/1311:44 am
TYS
- SEA
1 stop10h 05m
Delta
수 5/205:30 am
SEA
- TYS
1 stop8h 57m
Delta
Deal found 4/20![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/188:32 pm
TYS
- SEA
1 stop16h 17m
Frontier
일 5/243:19 pm
SEA
- TYS
1 stop25h 05m
Frontier
Deal found 4/20![Frontier logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 6/38:32 pm
TYS
- SEA
2 stops25h 03m
Frontier
화 6/97:41 pm
SEA
- TYS
1 stop20h 56m
Frontier
Deal found 4/20![Frontier logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/181:15 pm
TYS
- SEA
2 stops23h 34m
Multiple Airlines
목 5/287:50 pm
SEA
- TYS
1 stop20h 34m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 5/295:33 pm
TYS
- SEA
1 stop9h 11m
American Airlines
화 6/211:24 pm
SEA
- TYS
1 stop8h 49m
American Airlines
Deal found 4/21![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 4/21. 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.
토 8/294:56 pm
TYS
- SEA
1 stop7h 15m
United Airlines
토 9/57:00 am
SEA
- TYS
1 stop6h 59m
United Airlines
Deal found 4/21![United Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 8/36:30 am
TYS
- SEA
2 stops30h 18m
Multiple Airlines
수 8/127:41 pm
SEA
- TYS
1 stop15h 20m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
토 5/161:59 pm
TYS
- SEA
2 stops23h 23m
Multiple Airlines
토 5/237:50 pm
SEA
- TYS
1 stop15h 09m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/188:32 pm
TYS
- SEA
1 stop16h 17m
Multiple Airlines
수 5/277:50 pm
SEA
- TYS
2 stops48h 47m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$363
Best flights from Knoxville to SeattleDiscover carefully curated flight deals from Knoxville to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4월 22, 2026.
Discover carefully curated flight deals from Knoxville to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4월 22, 2026.
This United Airlines deal was found by Cheapflights users on 4/21. 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.
토 8/294:56 pm
TYS
- SEA
1 stop7h 15m
United Airlines
토 9/57:00 am
SEA
- TYS
1 stop6h 59m
United Airlines
Deal found 4/21![United Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 4/21. 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.
수 6/106:37 pm
TYS
- SEA
1 stop8h 22m
Delta
월 6/155:30 am
SEA
- TYS
1 stop9h 27m
Delta
Deal found 4/21![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 7/215:40 pm
TYS
- SEA
2 stops10h 00m
Southwest
월 8/311:05 pm
SEA
- TYS
2 stops10h 00m
Southwest
Deal found 4/20![Southwest logo]()
$487
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 8/284:56 pm
TYS
- SEA
1 stop9h 15m
United Airlines
월 9/711:56 pm
SEA
- TYS
1 stop8h 21m
United Airlines
Deal found 4/20![United Airlines logo]()
$495
This Delta deal was found by Cheapflights users on 4/20. 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.
월 10/126:15 pm
TYS
- SEA
1 stop8h 44m
Delta
금 10/1611:05 pm
SEA
- TYS
1 stop8h 09m
Delta
Deal found 4/20![Delta logo]()
$518
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 6/106:55 pm
TYS
- SEA
2 stops8h 25m
Southwest
월 6/155:15 am
SEA
- TYS
1 stop10h 55m
Southwest
Deal found 4/21![Southwest logo]()
$580
This United Airlines deal was found by Cheapflights users on 4/22. 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.
토 5/3010:45 am
TYS
- SEA
2 stops14h 23m
United Airlines
월 6/810:40 pm
SEA
- TYS
1 stop8h 25m
United Airlines
Deal found 4/22![United Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 4/21. 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.
수 10/147:00 am
TYS
- SEA
2 stops11h 51m
United Airlines
월 11/22:15 pm
SEA
- TYS
1 stop6h 59m
United Airlines
Deal found 4/21![United Airlines logo]()
$572
Last-minute flights from Knoxville to SeattleDiscover last-minute flight deals from Knoxville to Seattle. Data last updated 4월 22, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Seattle. Data last updated 4월 22, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/20. 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.
수 5/1311:44 am
TYS
- SEA
1 stop10h 05m
Delta
수 5/205:30 am
SEA
- TYS
1 stop8h 57m
Delta
Deal found 4/20![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
금 5/151:43 pm
TYS
- SEA
2 stops30h 54m
Multiple Airlines
토 5/237:50 pm
SEA
- TYS
1 stop15h 09m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
토 5/161:59 pm
TYS
- SEA
2 stops23h 23m
Multiple Airlines
토 5/237:50 pm
SEA
- TYS
1 stop15h 09m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/181:15 pm
TYS
- SEA
2 stops23h 34m
Multiple Airlines
일 5/243:19 pm
SEA
- TYS
1 stop25h 05m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/188:32 pm
TYS
- SEA
1 stop16h 17m
Frontier
일 5/243:19 pm
SEA
- TYS
1 stop25h 05m
Frontier
Deal found 4/20![Frontier logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/181:15 pm
TYS
- SEA
2 stops23h 34m
Multiple Airlines
목 5/287:50 pm
SEA
- TYS
1 stop20h 34m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/188:32 pm
TYS
- SEA
1 stop16h 17m
Multiple Airlines
수 5/277:50 pm
SEA
- TYS
2 stops48h 47m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/188:32 pm
TYS
- SEA
1 stop16h 17m
Frontier
목 5/287:50 pm
SEA
- TYS
1 stop20h 34m
Frontier
Deal found 4/20![Frontier logo]()
$368
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 5/295:33 pm
TYS
- SEA
1 stop9h 11m
American Airlines
화 6/211:24 pm
SEA
- TYS
1 stop8h 49m
American Airlines
Deal found 4/21![American Airlines logo]()
$354
One-way flights from Knoxville to SeattleSearch for one-way flight options from Knoxville to Seattle. Find affordable one-way fares based on user searches. Data last updated 4월 22, 2026.
Search for one-way flight options from Knoxville to Seattle. Find affordable one-way fares based on user searches. Data last updated 4월 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
월 5/118:32 pm
TYS
- SEA
2 stops25h 03m
Frontier
Deal found 4/17![Frontier logo]()
$132
This American Airlines deal was found by Cheapflights users on 4/20. 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.
목 5/288:11 pm
TYS
- SEA
1 stop7h 48m
American Airlines
Deal found 4/20![American Airlines logo]()
$178
This American Airlines deal was found by Cheapflights users on 4/20. 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.
화 5/125:09 pm
TYS
- SEA
1 stop8h 20m
American Airlines
Deal found 4/20![American Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 5/283:46 pm
TYS
- SEA
2 stops21h 20m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 4/17. 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.
목 5/146:01 pm
TYS
- SEA
1 stop7h 38m
United Airlines
Deal found 4/17![United Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 6/152:46 pm
TYS
- SEA
1 stop22h 49m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 5/2611:31 am
TYS
- SEA
3 stops58h 04m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$210
Find flight deals from Knoxville to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Seattle (SEA). 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 4월 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $266 (Kiwi.com) |
One-way from | $132 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $550 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Seattle 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 4월 22, 2026.
Use the filters below to find and compare flights from Knoxville to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
토 8/29
4:56 pm-9:11 pm
1 stop7h 15m
Seattle/Tacoma Intl
토 9/5
7:00 am-4:59 pm
1 stop6h 59m
$355
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
수 6/10
6:37 pm-11:59 pm
1 stop8h 22m
Seattle/Tacoma Intl
월 6/15
5:30 am-5:57 pm
1 stop9h 27m
$375
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
화 7/21
5:40 pm-12:40 am
2 stops10h 00m
Seattle/Tacoma Intl
월 8/3
11:05 pm-12:05 pm
2 stops10h 00m
$487
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
금 8/28
4:56 pm-11:11 pm
1 stop9h 15m
Seattle/Tacoma Intl
월 9/7
11:56 pm-11:17 am
1 stop8h 21m
$495
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
월 10/12
6:15 pm-11:59 pm
1 stop8h 44m
Seattle/Tacoma Intl
금 10/16
11:05 pm-10:14 am
1 stop8h 09m
$518
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
토 5/30
10:45 am-10:08 pm
2 stops14h 23m
Seattle/Tacoma Intl
월 6/8
10:40 pm-10:05 am
1 stop8h 25m
$558
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
수 10/14
7:00 am-3:51 pm
2 stops11h 51m
Seattle/Tacoma Intl
월 11/2
2:15 pm-12:14 am
1 stop6h 59m
$572
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
수 6/10
6:55 pm-12:20 am
2 stops8h 25m
Seattle/Tacoma Intl
월 6/15
5:15 am-7:10 pm
1 stop10h 55m
$580
Cheapest one-way
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
월 5/11
8:32 pm-9:49 am
1 stop16h 17m
$195
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
화 7/7
5:45 am-11:51 am
1 stop9h 06m
$229
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Seattle
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 Seattle in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Seattle 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-Seattle 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 Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Knoxville with our price prediction graph.
TYS-SEA
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 Seattle
How far ahead should I book a flight from Knoxville to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Seattle. Price data was last updated on April 17, 2026.
The best time to book flights from Knoxville to Seattle is 85 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.
What is the cheapest month to book a flight from Knoxville to Seattle?
Currently, August is the cheapest month in which you can book a flight from Knoxville to Seattle (average of $436). Flying from Knoxville to Seattle in December is currently the most expensive (average of $778). 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 Seattle?
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 4월 22, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Knoxville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Food
7.2
Crew
8.5
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 Seattle. 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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Book flights to Seattle if you plan to visit one of these locationsSeaTac
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Knoxville and Seattle flights
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Top 4 airlines flying from Knoxville to Seattle
Discover the top 4 airlines that operate flights from Knoxville to Seattle. 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 4월 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$278 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$308 | Average$530 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$318 | Average$566 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$331 | Average$520 | FlexibilityNo cancel fee | On-time69% |