$165+ Cheap flights from Seattle to Knoxville (SEA - TYS)
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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TYS
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Knoxville 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 Seattle to Knoxville
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Best
Last-minute
One-way
Cheapest flights from Seattle to KnoxvilleExplore the most affordable flight options available from Seattle to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
Explore the most affordable flight options available from Seattle to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Wed 10/214:27 pm -
1 stop17h 44m
Thu 10/296:30 am -
2 stops38h 56m
Deal found 8/17![Multiple Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 8/19. 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.
Wed 9/162:30 pm -
1 stop6h 25m
Tue 9/226:13 pm -
1 stop8h 45m
Deal found 8/19![Delta logo]()
$337
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 10/217:00 am -
2 stops10h 19m
Sat 10/244:53 pm -
1 stop7h 22m
Deal found 8/17![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 8/16. 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 9/1011:05 pm -
2 stops10h 15m
Tue 9/151:55 pm -
2 stops12h 15m
Deal found 8/16![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 8/16. 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 9/1011:05 pm -
2 stops10h 15m
Wed 9/163:00 pm -
1 stop11h 10m
Deal found 8/16![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 8/20. 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.
Fri 10/212:10 am -
2 stops14h 40m
Tue 10/65:15 pm -
2 stops9h 40m
Deal found 8/20![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:35 pm -
1 stop9h 19m
Tue 10/276:23 pm -
1 stop8h 29m
Deal found 8/17![Delta logo]()
$357
This American Airlines deal was found by Cheapflights users on 8/21. 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.
Wed 9/1610:59 am -
1 stop8h 43m
Tue 9/227:30 am -
1 stop10h 21m
Deal found 8/21![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 10/2011:13 pm -
1 stop7h 32m
Tue 10/2710:45 am -
2 stops10h 12m
Deal found 8/17![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/21. 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.
Fri 9/1112:00 pm -
1 stop8h 14m
Mon 9/146:20 pm -
1 stop8h 35m
Deal found 8/21![Delta logo]()
$360
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:20 am -
2 stops10h 40m
Thu 9/244:50 pm -
1 stop9h 10m
Deal found 8/19![Southwest logo]()
$363
Best flights from Seattle to KnoxvilleDiscover carefully curated flight deals from Seattle to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from Seattle to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
This Southwest deal was found by Cheapflights users on 8/16. 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.
Mon 9/2811:05 pm -
2 stops10h 00m
Wed 9/303:00 pm -
1 stop11h 10m
Deal found 8/16![Southwest logo]()
$348
This Delta deal was found by Cheapflights users on 8/20. 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.
Thu 10/296:00 am -
1 stop9h 24m
Sun 11/15:40 am -
1 stop7h 23m
Deal found 8/20![Delta logo]()
$402
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 9/95:00 am -
1 stop7h 54m
Tue 9/159:45 am -
2 stops12h 30m
Deal found 8/19![United Airlines logo]()
$452
This Southwest deal was found by Cheapflights users on 8/16. 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 9/1011:05 pm -
2 stops10h 15m
Wed 9/163:00 pm -
1 stop11h 10m
Deal found 8/16![Southwest logo]()
$348
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 9/1610:42 am -
1 stop9h 07m
Tue 9/226:00 am -
2 stops11h 24m
Deal found 8/19![United Airlines logo]()
$452
This Southwest deal was found by Cheapflights users on 8/20. 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.
Sat 9/511:05 pm -
2 stops11h 45m
Wed 9/91:55 pm -
2 stops12h 15m
Deal found 8/20![Southwest logo]()
$421
This Delta deal was found by Cheapflights users on 8/18. 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.
Sat 10/1011:59 pm -
1 stop19h 09m
Fri 10/164:57 pm -
1 stop9h 55m
Deal found 8/18![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:43 pm -
2 stops12h 02m
Thu 10/155:45 am -
2 stops13h 20m
Deal found 8/18![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 8/18. 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.
Thu 10/811:10 pm -
1 stop19h 27m
Thu 10/1510:29 am -
1 stop8h 47m
Deal found 8/18![Delta logo]()
$536
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Sat 9/57:00 am -
1 stop6h 58m
Wed 9/96:00 pm -
1 stop7h 45m
Deal found 8/20![United Airlines logo]()
$521
Last-minute flights from Seattle to KnoxvilleDiscover last-minute flight deals from Seattle to Knoxville. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Knoxville. Data last updated August 21, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:15 am -
1 stop10h 03m
Wed 9/94:48 pm -
1 stop10h 34m
Deal found 8/18![American Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 8/18. 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.
Wed 9/911:05 pm -
1 stop8h 13m
Tue 9/154:40 pm -
1 stop7h 35m
Deal found 8/18![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 8/16. 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 9/1011:05 pm -
2 stops10h 15m
Tue 9/151:55 pm -
2 stops12h 15m
Deal found 8/16![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 8/16. 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 9/1011:05 pm -
2 stops10h 15m
Wed 9/163:00 pm -
1 stop11h 10m
Deal found 8/16![Southwest logo]()
$348
This American Airlines deal was found by Cheapflights users on 8/16. 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 9/1110:59 am -
1 stop8h 43m
Tue 9/152:43 pm -
1 stop10h 09m
Deal found 8/16![American Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 8/16. 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.
Fri 9/1111:00 pm -
1 stop9h 55m
Tue 9/155:30 pm -
2 stops9h 10m
Deal found 8/16![Southwest logo]()
$371
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:00 pm -
1 stop10h 05m
Fri 9/184:50 pm -
1 stop9h 10m
Deal found 8/19![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:00 pm -
1 stop10h 05m
Thu 9/174:50 pm -
1 stop7h 00m
Deal found 8/19![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 8/19. 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.
Wed 9/162:30 pm -
1 stop6h 25m
Tue 9/226:13 pm -
1 stop8h 45m
Deal found 8/19![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 8/20. 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.
Sat 9/195:30 am -
1 stop8h 13m
Wed 9/238:00 am -
1 stop9h 51m
Deal found 8/20![American Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:20 am -
2 stops10h 40m
Thu 9/244:50 pm -
1 stop9h 10m
Deal found 8/19![Southwest logo]()
$363
One-way flights from Seattle to KnoxvilleSearch for one-way flight options from Seattle to Knoxville. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
Search for one-way flight options from Seattle to Knoxville. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Sat 11/77:41 pm -
1 stop14h 38m
Deal found 8/17![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Fri 11/611:06 am -
2 stops47h 13m
Deal found 8/16![Multiple Airlines logo]()
$168
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:13 pm -
1 stop7h 32m
Deal found 8/18![United Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Tue 11/178:09 pm -
2 stops39h 43m
Deal found 8/19![Multiple Airlines logo]()
$170
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:05 pm -
2 stops10h 00m
Deal found 8/17![Southwest logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Wed 9/309:45 pm -
1 stop22h 16m
Deal found 8/19![Multiple Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 9/298:15 pm -
3 stops42h 06m
Deal found 8/18![Multiple Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 8/18. 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.
Wed 9/236:00 am -
1 stop8h 28m
Deal found 8/18![Delta logo]()
$179
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:25 pm -
2 stops13h 40m
Deal found 8/19![Southwest logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Thu 10/14:27 pm -
2 stops22h 41m
Deal found 8/19![Multiple Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Fri 9/1111:00 pm -
1 stop7h 54m
Deal found 8/17![United Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sat 9/129:45 pm -
2 stops36h 42m
Deal found 8/20![Multiple Airlines logo]()
$194
Find flight deals from Seattle to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $325 (Kiwi.com) |
One-way from | $165 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $566 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 7,457,451 searches. Data last updated August 21, 2026.
Use the filters below to find and compare flights from Seattle to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Mon 9/28
11:05 pm-12:05 pm
2 stops10h 00m
Knoxville McGhee Tyson
Wed 9/30
3:00 pm-11:10 pm
1 stop11h 10m
$348
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Thu 9/10
11:05 pm-12:20 pm
2 stops10h 15m
Knoxville McGhee Tyson
Wed 9/16
3:00 pm-11:10 pm
1 stop11h 10m
$348
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Thu 10/29
6:00 am-6:24 pm
1 stop9h 24m
Knoxville McGhee Tyson
Sun 11/1
5:40 am-10:03 am
1 stop7h 23m
$402
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Sat 9/5
11:05 pm-1:50 pm
2 stops11h 45m
Knoxville McGhee Tyson
Wed 9/9
1:55 pm-11:10 pm
2 stops12h 15m
$421
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Wed 9/9
5:00 am-3:54 pm
1 stop7h 54m
Knoxville McGhee Tyson
Tue 9/15
9:45 am-7:15 pm
2 stops12h 30m
$452
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Wed 9/16
10:42 am-10:49 pm
1 stop9h 07m
Knoxville McGhee Tyson
Tue 9/22
6:00 am-2:24 pm
2 stops11h 24m
$452
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Mon 10/12
6:43 pm-9:45 am
2 stops12h 02m
Knoxville McGhee Tyson
Thu 10/15
5:45 am-4:05 pm
2 stops13h 20m
$458
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Sat 10/10
11:59 pm-10:08 pm
1 stop19h 09m
Knoxville McGhee Tyson
Fri 10/16
4:57 pm-11:52 pm
1 stop9h 55m
$484
Quickest round-trip
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Sat 9/5
7:00 am-4:58 pm
1 stop6h 58m
Knoxville McGhee Tyson
Wed 9/9
6:00 pm-10:45 pm
1 stop7h 45m
$521
SeattleKnoxville
SEA Seattle/Tacoma Intl - TYS Knoxville McGhee Tyson
SEATYS
Seattle/Tacoma Intl
Thu 10/8
11:10 pm-9:37 pm
1 stop19h 27m
Knoxville McGhee Tyson
Thu 10/15
10:29 am-4:16 pm
1 stop8h 47m
$536
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Knoxville
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 Seattle to Knoxville in August.
| 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 Seattle-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Knoxville 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 Seattle-Knoxville 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 Seattle to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Seattle with our price prediction graph.
SEA-TYS
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 Seattle to Knoxville
How far ahead should I book a flight from Seattle to Knoxville?
The price you pay for your flight from Seattle to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Seattle to Knoxville?
Currently, January is the cheapest month in which you can book a flight from Seattle to Knoxville (average of $477). Flying from Seattle to Knoxville in March is currently the most expensive (average of $681). 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 Seattle to Knoxville?
Airfare is below average for this route at the moment.
Seattle to Knoxville flights typically cost between $422 and $616 in October.The cheapest round-trip price found within the last 5 days was $325 on Multiple Airlines (Oct 21-Oct 29).
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 August 21, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Seattle to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Knoxville. 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 Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa
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Other flights to Knoxville
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Top 4 airlines flying from Seattle to Knoxville
Discover the top 4 airlines that operate flights from Seattle 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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$354 | Average$560 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$358 | Average$563 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$396 | Average$540 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$641 | Average$760 | FlexibilityNo cancel fee | On-time75% |