$121+ Cheap flights from Knoxville (TYS) to Washington
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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Aug 16 — Aug 231
Round-trip
1 adult, Economy
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Cheapest flights from Knoxville to WashingtonExplore the most affordable flight options available from Knoxville to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.
Explore the most affordable flight options available from Knoxville to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.
This Southwest deal was found by Cheapflights users on 7/16. 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 10/305:30 pm
TYS
- GEG
1 stop7h 50m
Southwest
Sat 11/76:40 am
GEG
- TYS
1 stop6h 30m
Southwest
Deal found 7/16![Southwest logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 9/107:00 am
TYS
- PDX
1 stop12h 35m
Multiple Airlines
Thu 9/173:22 pm
PDX
- TYS
2 stops19h 05m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:03 am
TYS
- GEG
1 stop8h 51m
American Airlines
Wed 9/212:44 pm
GEG
- TYS
1 stop7h 34m
American Airlines
Deal found 7/17![American Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 8/137:00 am
TYS
- PDX
1 stop12h 51m
Multiple Airlines
Thu 8/201:47 pm
PDX
- TYS
1 stop28h 59m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Sat 8/297:15 am
TYS
- GEG
2 stops10h 56m
United Airlines
Wed 9/25:00 am
GEG
- TYS
1 stop7h 54m
United Airlines
Deal found 7/17![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 7/17. 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.
Sat 8/296:50 am
TYS
- GEG
2 stops10h 45m
Southwest
Wed 9/26:15 am
GEG
- TYS
2 stops9h 40m
Southwest
Deal found 7/17![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 7/16. 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 8/275:45 pm
TYS
- GEG
2 stops7h 55m
Southwest
Mon 8/316:30 am
GEG
- TYS
1 stop6h 25m
Southwest
Deal found 7/16![Southwest logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/218:30 am
TYS
- PDX
2 stops35h 41m
Multiple Airlines
Wed 8/265:56 pm
PDX
- TYS
1 stop16h 53m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:00 pm
TYS
- PDX
1 stop10h 10m
United Airlines
Sat 9/127:02 am
PDX
- TYS
1 stop6h 56m
United Airlines
Deal found 7/16![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 am
TYS
- PDX
2 stops10h 05m
United Airlines
Mon 10/1211:30 pm
PDX
- TYS
1 stop7h 15m
United Airlines
Deal found 7/13![United Airlines logo]()
$360
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:03 am
TYS
- PDX
1 stop7h 51m
American Airlines
Thu 8/275:18 am
PDX
- TYS
1 stop8h 25m
American Airlines
Deal found 7/13![American Airlines logo]()
$363
This CheapOair deal was found by Cheapflights users on 7/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:19 pm
TYS
- PDX
1 stop23h 32m
Frontier
Tue 8/115:16 pm
PDX
- TYS
1 stop23h 08m
Frontier
Deal found 7/17![Frontier logo]()
$364
Best flights from Knoxville to WashingtonDiscover carefully curated flight deals from Knoxville to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 17, 2026.
Discover carefully curated flight deals from Knoxville to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 17, 2026.
This Delta deal was found by Cheapflights users on 7/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:45 am
TYS
- PDX
1 stop7h 57m
Delta
Mon 11/211:39 am
PDX
- TYS
1 stop8h 33m
Delta
Deal found 7/16![Delta logo]()
$355
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:53 pm
TYS
- PDX
1 stop8h 06m
American Airlines
Sat 9/126:00 am
PDX
- TYS
1 stop7h 42m
American Airlines
Deal found 7/17![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 am
TYS
- PDX
2 stops10h 05m
United Airlines
Mon 10/1211:30 pm
PDX
- TYS
1 stop7h 15m
United Airlines
Deal found 7/13![United Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 7/16. 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.
Tue 8/187:00 am
TYS
- PDX
2 stops11h 00m
Southwest
Tue 8/1811:30 pm
PDX
- TYS
2 stops9h 35m
Southwest
Deal found 7/16![Southwest logo]()
$366
This CheapOair deal was found by Cheapflights users on 7/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:19 pm
TYS
- PDX
1 stop23h 32m
Frontier
Tue 8/115:16 pm
PDX
- TYS
1 stop23h 08m
Frontier
Deal found 7/12![Frontier logo]()
$429
This Southwest deal was found by Cheapflights users on 7/12. 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.
Wed 9/161:55 pm
TYS
- PDX
2 stops11h 20m
Southwest
Mon 9/2111:30 pm
PDX
- TYS
2 stops9h 35m
Southwest
Deal found 7/12![Southwest logo]()
$366
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:45 am
TYS
- GEG
2 stops12h 26m
United Airlines
Wed 9/91:37 pm
GEG
- TYS
1 stop6h 07m
United Airlines
Deal found 7/16![United Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:15 am
TYS
- GEG
2 stops11h 54m
American Airlines
Sat 9/126:30 am
GEG
- TYS
2 stops11h 22m
American Airlines
Deal found 7/17![American Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:15 pm
TYS
- PDX
1 stop8h 32m
Delta
Sun 11/159:45 pm
PDX
- TYS
1 stop8h 27m
Delta
Deal found 7/12![Delta logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:24 am
TYS
- ALW
2 stops12h 03m
Alaska Airlines
Sat 12/55:06 am
ALW
- TYS
2 stops10h 37m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$825
This Southwest deal was found by Cheapflights users on 7/12. 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.
Thu 8/204:50 pm
TYS
- SEA
1 stop6h 55m
Southwest
Fri 8/286:30 am
SEA
- TYS
1 stop6h 25m
Southwest
Deal found 7/12![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
TYS
- SEA
1 stop7h 32m
United Airlines
Tue 9/111:00 pm
SEA
- TYS
1 stop7h 57m
United Airlines
Deal found 7/12![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 7/14. 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.
Wed 8/125:40 am
TYS
- GEG
1 stop8h 41m
Delta
Mon 8/2410:56 pm
GEG
- TYS
1 stop9h 15m
Delta
Deal found 7/14![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:50 pm
TYS
- GEG
1 stop6h 56m
United Airlines
Wed 9/25:00 am
GEG
- TYS
1 stop7h 54m
United Airlines
Deal found 7/16![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 7/14. 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 9/105:45 pm
TYS
- PDX
2 stops8h 20m
Southwest
Sun 9/1311:30 pm
PDX
- TYS
2 stops9h 50m
Southwest
Deal found 7/14![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 7/17. 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.
Sun 8/235:40 am
TYS
- PDX
1 stop7h 47m
Delta
Sat 8/296:45 am
PDX
- TYS
1 stop9h 26m
Delta
Deal found 7/17![Delta logo]()
$435
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:50 pm
TYS
- GEG
1 stop6h 56m
United Airlines
Sat 8/295:00 am
GEG
- TYS
1 stop7h 46m
United Airlines
Deal found 7/13![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 7/15. 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 8/212:05 pm
TYS
- PDX
2 stops12h 10m
Southwest
Wed 8/267:05 am
PDX
- TYS
2 stops8h 50m
Southwest
Deal found 7/15![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:20 pm
TYS
- SEA
1 stop8h 35m
Delta
Thu 9/1711:59 pm
SEA
- TYS
1 stop8h 19m
Delta
Deal found 7/12![Delta logo]()
$447
This United Airlines deal was found by Cheapflights users on 7/15. 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 9/17:00 am
TYS
- GEG
2 stops14h 51m
United Airlines
Sat 9/125:00 am
GEG
- TYS
1 stop7h 46m
United Airlines
Deal found 7/15![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 7/16. 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 11/67:05 am
TYS
- PDX
2 stops9h 45m
Southwest
Thu 11/125:10 am
PDX
- TYS
2 stops10h 35m
Southwest
Deal found 7/16![Southwest logo]()
$417
This Southwest deal was found by Cheapflights users on 7/13. 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.
Sun 8/302:35 pm
TYS
- SEA
2 stops10h 10m
Southwest
Mon 8/3111:05 pm
SEA
- TYS
2 stops10h 00m
Southwest
Deal found 7/13![Southwest logo]()
$437
This Delta deal was found by Cheapflights users on 7/15. 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 8/106:12 pm
TYS
- SEA
1 stop8h 45m
Delta
Mon 8/179:10 am
SEA
- TYS
1 stop6h 42m
Delta
Deal found 7/15![Delta logo]()
$497
This United Airlines deal was found by Cheapflights users on 7/15. 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 8/299:45 am
TYS
- PSC
2 stops13h 52m
United Airlines
Tue 9/15:15 am
PSC
- TYS
1 stop7h 39m
United Airlines
Deal found 7/15![United Airlines logo]()
$454
This Southwest deal was found by Cheapflights users on 7/13. 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.
Thu 9/34:50 pm
TYS
- SEA
2 stops10h 30m
Southwest
Mon 9/77:25 pm
SEA
- TYS
2 stops13h 40m
Southwest
Deal found 7/13![Southwest logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:00 pm
TYS
- ALW
2 stops11h 49m
Alaska Airlines
Tue 11/35:08 am
ALW
- TYS
2 stops13h 23m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$825
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:25 pm
TYS
- SEA
1 stop8h 53m
United Airlines
Tue 8/1111:00 pm
SEA
- TYS
1 stop7h 57m
United Airlines
Deal found 7/16![United Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 7/15. 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 7/305:23 pm
TYS
- PSC
2 stops9h 31m
Delta
Mon 8/36:15 am
PSC
- TYS
2 stops12h 45m
Delta
Deal found 7/15![Delta logo]()
$559
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Thu 8/274:50 pm
TYS
- SEA
1 stop9h 14m
United Airlines
Sat 9/55:20 pm
SEA
- TYS
2 stops13h 37m
United Airlines
Deal found 7/15![United Airlines logo]()
$470
This Southwest deal was found by Cheapflights users on 7/12. 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.
Sun 8/237:35 am
TYS
- SEA
2 stops14h 05m
Southwest
Tue 9/17:10 am
SEA
- TYS
2 stops8h 45m
Southwest
Deal found 7/12![Southwest logo]()
$482
Last-minute flights from Knoxville to WashingtonDiscover last-minute flight deals from Knoxville to Washington. Data last updated July 17, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Washington. Data last updated July 17, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/13. 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 8/43:00 pm
TYS
- PDX
1 stop10h 15m
Southwest
Mon 8/107:35 pm
PDX
- TYS
2 stops13h 30m
Southwest
Deal found 7/13![Southwest logo]()
$371
This CheapOair deal was found by Cheapflights users on 7/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:19 pm
TYS
- PDX
1 stop23h 32m
Frontier
Tue 8/115:16 pm
PDX
- TYS
1 stop23h 08m
Frontier
Deal found 7/17![Frontier logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 8/137:00 am
TYS
- PDX
1 stop12h 51m
Multiple Airlines
Thu 8/201:47 pm
PDX
- TYS
1 stop28h 59m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:00 am
TYS
- PDX
1 stop12h 51m
Multiple Airlines
Sat 8/2212:20 pm
PDX
- TYS
1 stop22h 29m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 7/16. 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.
Tue 8/183:00 pm
TYS
- PDX
1 stop10h 15m
Southwest
Tue 8/1811:30 pm
PDX
- TYS
2 stops9h 35m
Southwest
Deal found 7/16![Southwest logo]()
$366
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Tue 8/186:03 am
TYS
- PDX
1 stop7h 51m
American Airlines
Tue 8/1811:34 pm
PDX
- TYS
1 stop8h 36m
American Airlines
Deal found 7/16![American Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:03 am
TYS
- PDX
1 stop7h 51m
American Airlines
Thu 8/275:18 am
PDX
- TYS
1 stop8h 25m
American Airlines
Deal found 7/13![American Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/218:30 am
TYS
- PDX
2 stops35h 41m
Multiple Airlines
Wed 8/265:56 pm
PDX
- TYS
1 stop16h 53m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 7/16. 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 8/275:45 pm
TYS
- GEG
2 stops7h 55m
Southwest
Mon 8/316:30 am
GEG
- TYS
1 stop6h 25m
Southwest
Deal found 7/16![Southwest logo]()
$350
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:03 am
TYS
- GEG
1 stop8h 51m
American Airlines
Wed 9/212:44 pm
GEG
- TYS
1 stop7h 34m
American Airlines
Deal found 7/17![American Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Sat 8/297:15 am
TYS
- GEG
2 stops10h 56m
United Airlines
Wed 9/25:00 am
GEG
- TYS
1 stop7h 54m
United Airlines
Deal found 7/17![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 7/17. 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.
Sat 8/296:50 am
TYS
- GEG
2 stops10h 45m
Southwest
Wed 9/26:15 am
GEG
- TYS
2 stops9h 40m
Southwest
Deal found 7/17![Southwest logo]()
$347
One-way flights from Knoxville to WashingtonSearch for one-way flight options from Knoxville to Washington. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
Search for one-way flight options from Knoxville to Washington. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 10/296:30 am
TYS
- SEA
1 stop30h 21m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 9/277:00 am
TYS
- SEA
2 stops54h 00m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Sun 8/97:00 am
TYS
- SEA
1 stop29h 04m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Mon 8/106:30 am
TYS
- SEA
2 stops53h 34m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 10/302:54 pm
TYS
- SEA
2 stops47h 06m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/277:00 am
TYS
- PDX
1 stop12h 35m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$136
This WAYA deal was found by Cheapflights users on 7/14. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
TYS
- SEA
1 stop9h 22m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:47 pm
TYS
- SEA
1 stop23h 17m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Sun 8/162:51 pm
TYS
- SEA
2 stops46h 48m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Fri 10/2312:49 pm
TYS
- SEA
1 stop24h 11m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 8/137:00 am
TYS
- PDX
1 stop12h 51m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/97:00 am
TYS
- PDX
1 stop12h 51m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$172
Find flight deals from Knoxville to Washington
Keep the following information in mind while searching for Knoxville to Washington flight deals. Data was last updated July 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (Southwest) |
One-way from | $121 (Kiwi.com) |
Popular in | December |
Cheapest in | November |
Average price | $592 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Washington 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 July 17, 2026.
Use the filters below to find and compare flights from Knoxville to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Fri 10/30
5:45 am-10:42 am
1 stop7h 57m
Portland
Mon 11/2
11:39 am-11:12 pm
1 stop8h 33m
$355
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Sat 9/5
1:53 pm-6:59 pm
1 stop8h 06m
Portland
Sat 9/12
6:00 am-4:42 pm
1 stop7h 42m
$355
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Tue 10/6
10:42 am-5:47 pm
2 stops10h 05m
Portland
Mon 10/12
11:30 pm-9:45 am
1 stop7h 15m
$360
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Tue 8/18
7:00 am-3:00 pm
2 stops11h 00m
Portland
Tue 8/18
11:30 pm-12:05 pm
2 stops9h 35m
$366
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Wed 9/16
1:55 pm-10:15 pm
2 stops11h 20m
Portland
Mon 9/21
11:30 pm-12:05 pm
2 stops9h 35m
$366
KnoxvilleSpokane
TYS - GEG
TYSGEG
Knoxville McGhee Tyson
Sat 9/5
5:45 am-3:11 pm
2 stops12h 26m
Spokane
Wed 9/9
1:37 pm-10:44 pm
1 stop6h 07m
$384
KnoxvilleSpokane
TYS - GEG
TYSGEG
Knoxville McGhee Tyson
Tue 9/1
5:15 am-2:09 pm
2 stops11h 54m
Spokane
Sat 9/12
6:30 am-8:52 pm
2 stops11h 22m
$393
KnoxvillePortland
TYS - PDX
TYSPDX
Knoxville McGhee Tyson
Wed 11/11
6:15 pm-11:47 pm
1 stop8h 32m
Portland
Sun 11/15
9:45 pm-9:12 am
1 stop8h 27m
$406
Quickest round-trip
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Thu 8/20
4:50 pm-8:45 pm
1 stop6h 55m
Seattle/Tacoma Intl
Fri 8/28
6:30 am-3:55 pm
1 stop6h 25m
$406
KnoxvilleSeattle
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Sun 8/23
7:00 am-11:32 am
1 stop7h 32m
Seattle/Tacoma Intl
Tue 9/1
11:00 pm-9:57 am
1 stop7h 57m
$406
Showing 1-10 of 52 resultsSorted by cheapest first
Best time to book a flight from Knoxville to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Knoxville with our price prediction graph.
TYS-GEG
TYS-PDX
TYS-ALW
TYS-SEA
TYS-PSC
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 Washington
TYS-USWA
TYS-GEG
TYS-PDX
TYS-ALW
TYS-SEA
What is the cheapest month to book a flight from Knoxville to State of Washington?
Currently, August is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $179). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $457). 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 State of Washington?
How far ahead should I book a flight from Knoxville to State of Washington?
To ensure you get the cheapest price possible for a flight from Knoxville to State of Washington, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated July 17, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Knoxville to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Washington. 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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Knoxville and Washington flights
Browse other Knoxville and Washington flight options. Last updated on July 17, 2026.
Popular flight searches
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Knoxville to Washington flights
Consider these flights traveling from Knoxville to Washington.
Top 6 airlines flying from Knoxville to Washington
Discover the top 6 airlines that operate flights from Knoxville to Washington. 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 July 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$278 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$288 | Average$531 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$607 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$354 | Average$553 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$386 | Average$582 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$603 | Average$847 | FlexibilityNo cancel fee | On-time75% |