$140+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Sep 20 — Sep 271
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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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 August 21, 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 August 21, 2026.
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.
Thu 11/126:30 am -
2 stops15h 24m
Sat 11/147:41 pm -
1 stop14h 38m
Deal found 8/18![Multiple Airlines logo]()
$286
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
1 stop10h 19m
Tue 9/295:30 am -
1 stop8h 13m
Deal found 8/17![American Airlines logo]()
$337
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:00 am -
1 stop8h 05m
Mon 11/29:50 pm -
1 stop8h 55m
Deal found 8/17![American Airlines logo]()
$337
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:53 pm -
1 stop7h 22m
Mon 11/28:30 am -
2 stops9h 24m
Deal found 8/16![United Airlines logo]()
$342
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 9/194:50 pm -
1 stop7h 15m
Sat 9/267:02 am -
2 stops10h 17m
Deal found 8/20![United Airlines logo]()
$342
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.
Wed 9/231:55 pm -
2 stops12h 15m
Mon 9/2811:05 pm -
2 stops10h 00m
Deal found 8/19![Southwest logo]()
$347
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.
Wed 12/97:05 am -
2 stops9h 05m
Tue 12/156:00 am -
2 stops10h 45m
Deal found 8/19![Southwest logo]()
$347
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.
Mon 9/146:02 pm -
1 stop7h 43m
Mon 9/2111:00 pm -
1 stop7h 54m
Deal found 8/17![United Airlines logo]()
$354
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.
Sun 11/16:30 am -
1 stop30h 21m
Fri 11/611:06 am -
2 stops47h 13m
Deal found 8/16![Multiple Airlines logo]()
$356
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 9/95:40 am -
1 stop7h 58m
Wed 9/162:10 pm -
1 stop6h 45m
Deal found 8/18![Delta logo]()
$357
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.
Fri 9/115:40 am -
1 stop7h 10m
Wed 9/166:00 am -
1 stop8h 38m
Deal found 8/20![Delta logo]()
$360
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
1 stop10h 32m
Mon 11/211:09 pm -
1 stop8h 57m
Deal found 8/17![American Airlines logo]()
$361
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 August 21, 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 August 21, 2026.
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.
Thu 10/295:05 pm -
1 stop7h 14m
Mon 11/210:56 pm -
2 stops9h 34m
Deal found 8/20![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.
Wed 9/233:00 pm -
1 stop11h 10m
Wed 9/305:20 am -
2 stops10h 40m
Deal found 8/16![Southwest logo]()
$348
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.
Tue 9/228:00 am -
1 stop8h 19m
Sat 10/312:45 pm -
1 stop7h 37m
Deal found 8/20![American Airlines logo]()
$363
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 10/84:11 pm -
1 stop8h 21m
Sat 10/177:20 pm -
2 stops11h 56m
Deal found 8/20![Delta logo]()
$368
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/267:00 am -
2 stops12h 25m
Tue 2/26:50 am -
2 stops8h 50m
Deal found 8/18![Southwest logo]()
$353
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.
Fri 10/234:53 pm -
1 stop7h 22m
Tue 10/2710:56 pm -
2 stops9h 34m
Deal found 8/20![United Airlines logo]()
$365
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.
Wed 10/74:11 pm -
2 stops10h 39m
Sat 10/177:20 pm -
2 stops12h 29m
Deal found 8/20![Delta logo]()
$374
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:16 pm -
2 stops10h 45m
Sat 9/128:04 am -
2 stops11h 38m
Deal found 8/20![Alaska Airlines logo]()
$760
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:50 pm -
1 stop7h 24m
Sat 9/195:00 am -
2 stops12h 24m
Deal found 8/16![United Airlines logo]()
$368
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:40 am -
2 stops12h 10m
Wed 10/281:54 pm -
1 stop6h 08m
Deal found 8/16![Delta logo]()
$382
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 9/54:50 pm -
1 stop6h 47m
Sat 9/125:15 am -
2 stops12h 09m
Deal found 8/20![United Airlines logo]()
$368
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 9/165:28 pm -
2 stops9h 31m
Fri 9/1810:45 pm -
1 stop8h 59m
Deal found 8/18![Delta logo]()
$382
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:19 am -
2 stops12h 49m
Mon 10/267:25 pm -
2 stops12h 29m
Deal found 8/16![Delta logo]()
$387
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.
Wed 9/164:50 pm -
1 stop7h 24m
Wed 9/235:00 am -
1 stop7h 54m
Deal found 8/18![United Airlines logo]()
$396
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 9/165:28 pm -
2 stops9h 31m
Wed 9/2312:38 pm -
1 stop8h 17m
Deal found 8/18![Delta logo]()
$401
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 9/19:45 am -
2 stops13h 52m
Sat 9/55:15 am -
1 stop7h 31m
Deal found 8/17![United Airlines logo]()
$434
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:09 pm -
1 stop7h 17m
Mon 12/2812:00 pm -
1 stop6h 34m
Deal found 8/16![Delta logo]()
$402
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.
Tue 10/2711:59 am -
1 stop10h 18m
Sat 10/318:09 am -
1 stop8h 27m
Deal found 8/20![United Airlines logo]()
$447
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:40 am -
1 stop7h 23m
Fri 11/611:10 pm -
1 stop8h 22m
Deal found 8/16![Delta logo]()
$425
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.
Tue 11/101:55 pm -
1 stop9h 20m
Wed 11/115:00 am -
1 stop7h 00m
Deal found 8/20![United Airlines logo]()
$447
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:16 pm -
1 stop7h 28m
Sun 10/1811:00 pm -
1 stop7h 34m
Deal found 8/16![Delta logo]()
$426
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:00 am -
2 stops11h 28m
Sat 10/315:01 am -
2 stops11h 27m
Deal found 8/16![Alaska Airlines logo]()
$839
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:35 pm -
1 stop10h 02m
Mon 11/25:23 pm -
2 stops13h 30m
Deal found 8/21![United Airlines logo]()
$452
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.
Thu 9/35:40 am -
2 stops9h 05m
Mon 9/77:15 am -
1 stop6h 26m
Deal found 8/19![Delta logo]()
$434
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.
Thu 10/296:45 am -
2 stops14h 24m
Mon 11/211:30 pm -
1 stop7h 23m
Deal found 8/20![United Airlines logo]()
$452
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.
Tue 9/16:00 am -
2 stops13h 44m
Sat 9/58:42 am -
2 stops10h 57m
Deal found 8/17![Delta logo]()
$439
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 10/285:45 am -
2 stops12h 35m
Mon 11/27:26 pm -
2 stops13h 04m
Deal found 8/17![United Airlines logo]()
$458
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 10/285:05 pm -
1 stop7h 06m
Sat 10/315:00 am -
1 stop8h 04m
Deal found 8/19![United Airlines logo]()
$463
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.
Sat 9/51:00 pm -
2 stops12h 43m
Wed 9/3011:13 pm -
1 stop7h 32m
Deal found 8/19![United Airlines logo]()
$489
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 10/3110:51 am -
2 stops13h 07m
Mon 11/25:10 am -
1 stop7h 53m
Deal found 8/20![United Airlines logo]()
$499
Last-minute flights from Knoxville to WashingtonDiscover last-minute flight deals from Knoxville to Washington. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Washington. Data last updated August 21, 2026 and is based on user searches.
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 9/54:50 pm -
1 stop6h 47m
Sat 9/125:15 am -
2 stops12h 09m
Deal found 8/20![United Airlines logo]()
$368
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 9/95:40 am -
1 stop7h 58m
Wed 9/162:10 pm -
1 stop6h 45m
Deal found 8/18![Delta logo]()
$357
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.
Fri 9/115:40 am -
1 stop7h 10m
Wed 9/166:00 am -
1 stop8h 38m
Deal found 8/20![Delta logo]()
$360
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.
Mon 9/146:02 pm -
1 stop7h 43m
Mon 9/2111:00 pm -
1 stop7h 54m
Deal found 8/17![United Airlines logo]()
$354
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.
Tue 9/155:40 am -
1 stop8h 06m
Mon 9/2110:50 pm -
1 stop7h 39m
Deal found 8/20![Delta logo]()
$363
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 9/194:50 pm -
1 stop7h 15m
Sat 9/268:25 am -
1 stop8h 54m
Deal found 8/20![United Airlines logo]()
$337
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.
Sat 9/196:50 am -
2 stops10h 10m
Sat 9/2611:30 pm -
2 stops9h 55m
Deal found 8/16![Southwest logo]()
$368
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
1 stop10h 19m
Tue 9/295:30 am -
1 stop8h 13m
Deal found 8/17![American Airlines logo]()
$337
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.
Wed 9/231:55 pm -
2 stops12h 15m
Mon 9/2811:05 pm -
2 stops10h 00m
Deal found 8/19![Southwest logo]()
$347
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.
Fri 9/255:28 pm -
1 stop7h 31m
Mon 10/2611:43 am -
1 stop6h 54m
Deal found 8/20![Delta logo]()
$361
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.
Fri 9/253:15 pm -
1 stop9h 30m
Mon 9/2811:05 pm -
2 stops10h 00m
Deal found 8/17![Southwest logo]()
$365
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 9/254:50 pm -
1 stop9h 55m
Mon 10/2611:35 pm -
2 stops9h 45m
Deal found 8/20![Southwest logo]()
$366
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 August 21, 2026.
Search for one-way flight options from Knoxville to Washington. 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 8/16. 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 9/216:30 am -
1 stop30h 12m
Deal found 8/16![Multiple Airlines logo]()
$140
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 9/110:30 am -
2 stops33h 41m
Deal found 8/19![Multiple Airlines logo]()
$148
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.
Mon 8/312:49 pm -
2 stops29h 22m
Deal found 8/19![Multiple Airlines logo]()
$164
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 10/710:28 am -
2 stops27h 58m
Deal found 8/17![Multiple Airlines logo]()
$167
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.
Sat 9/196:00 pm -
1 stop7h 45m
Deal found 8/19![United Airlines logo]()
$169
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 9/51:55 pm -
1 stop7h 35m
Deal found 8/20![Southwest logo]()
$169
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.
Wed 10/214:20 pm -
2 stops10h 35m
Deal found 8/19![Southwest logo]()
$174
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 9/115:45 pm -
2 stops8h 25m
Deal found 8/20![Southwest logo]()
$174
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 9/246:13 pm -
1 stop8h 45m
Deal found 8/18![Delta logo]()
$179
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.
Fri 9/185:40 am -
1 stop7h 10m
Deal found 8/17![Delta logo]()
$192
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:00 pm -
1 stop9h 11m
Deal found 8/19![American Airlines logo]()
$193
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.
Thu 9/245:45 pm -
2 stops9h 00m
Deal found 8/20![Southwest logo]()
$195
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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $286 (Kiwi.com) |
One-way from | $140 (Kiwi.com) |
Popular in | December |
Cheapest in | November |
Average price | $563 |
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 7,457,451 searches. Data last updated August 21, 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
KnoxvilleSeattle
TYS Knoxville McGhee Tyson - SEA Seattle/Tacoma Intl
TYSSEA
Knoxville McGhee Tyson
Thu 10/29
5:05 pm-9:19 pm
1 stop7h 14m
Seattle/Tacoma Intl
Mon 11/2
10:56 pm-11:30 am
2 stops9h 34m
$342
KnoxvilleSeattle
TYS Knoxville McGhee Tyson - SEA Seattle/Tacoma Intl
TYSSEA
Knoxville McGhee Tyson
Wed 9/23
3:00 pm-11:10 pm
1 stop11h 10m
Seattle/Tacoma Intl
Wed 9/30
5:20 am-7:00 pm
2 stops10h 40m
$348
KnoxvillePortland
TYS Knoxville McGhee Tyson - PDX Portland
TYSPDX
Knoxville McGhee Tyson
Tue 1/26
7:00 am-4:25 pm
2 stops12h 25m
Portland
Tue 2/2
6:50 am-6:40 pm
2 stops8h 50m
$353
KnoxvilleSpokane
TYS Knoxville McGhee Tyson - GEG Spokane
TYSGEG
Knoxville McGhee Tyson
Tue 9/22
8:00 am-1:19 pm
1 stop8h 19m
Spokane
Sat 10/3
12:45 pm-11:22 pm
1 stop7h 37m
$363
KnoxvilleSeattle
TYS Knoxville McGhee Tyson - SEA Seattle/Tacoma Intl
TYSSEA
Knoxville McGhee Tyson
Fri 10/23
4:53 pm-9:15 pm
1 stop7h 22m
Seattle/Tacoma Intl
Tue 10/27
10:56 pm-11:30 am
2 stops9h 34m
$365
KnoxvilleSpokane
TYS Knoxville McGhee Tyson - GEG Spokane
TYSGEG
Knoxville McGhee Tyson
Thu 10/8
4:11 pm-9:32 pm
1 stop8h 21m
Spokane
Sat 10/17
7:20 pm-10:16 am
2 stops11h 56m
$368
KnoxvilleSpokane
TYS Knoxville McGhee Tyson - GEG Spokane
TYSGEG
Knoxville McGhee Tyson
Wed 9/16
4:50 pm-9:14 pm
1 stop7h 24m
Spokane
Sat 9/19
5:00 am-8:24 pm
2 stops12h 24m
$368
KnoxvillePasco
TYS Knoxville McGhee Tyson - PSC Pasco Tri Cities
TYSPSC
Knoxville McGhee Tyson
Sat 9/5
4:50 pm-8:37 pm
1 stop6h 47m
Pasco Tri Cities
Sat 9/12
5:15 am-8:24 pm
2 stops12h 09m
$368
KnoxvilleSpokane
TYS Knoxville McGhee Tyson - GEG Spokane
TYSGEG
Knoxville McGhee Tyson
Wed 10/7
4:11 pm-11:50 pm
2 stops10h 39m
Spokane
Sat 10/17
7:20 pm-10:49 am
2 stops12h 29m
$374
KnoxvilleSpokane
TYS Knoxville McGhee Tyson - GEG Spokane
TYSGEG
Knoxville McGhee Tyson
Fri 10/16
5:40 am-2:50 pm
2 stops12h 10m
Spokane
Wed 10/28
1:54 pm-11:02 pm
1 stop6h 08m
$382
Showing 1-10 of 60 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-SEA
TYS-PDX
TYS-GEG
TYS-PSC
TYS-ALW
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-SEA
TYS-PDX
TYS-GEG
TYS-PSC
What is the cheapest month to book a flight from Knoxville to State of Washington?
Currently, November is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $493). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $678). 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?
Airfare is below average for this route at the moment.
Knoxville to State of Washington flights typically cost between $420 and $636 in November.The cheapest round-trip price found within the last 5 days was $286 on Multiple Airlines (Nov 12-Nov 14).
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 66 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 August 21, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta 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.
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentTim,Jul 2024
DEN - SEA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentTim,Jul 2024
DEN - SEA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentTim,Jul 2024
DEN - SEA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentTim,Jul 2024
DEN - SEA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentTim,Jul 2024
DEN - SEA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentTim,Jul 2024
DEN - 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 August 21, 2026.
Popular flight searches
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Knoxville to Washington flights
Consider these flights traveling from Knoxville to Washington.
Top 5 airlines flying from Knoxville to Washington
Discover the top 5 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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$541 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$354 | Average$554 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$358 | Average$606 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$386 | Average$582 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$603 | Average$848 | FlexibilityNo cancel fee | On-time75% |