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$76+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap flight deals from Knoxville to Washington

Cheapest flights from Knoxville to Washington
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 February 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/23. 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 4/304:28 pm
TYS
-
SEA
1 stop25h 37m
Frontier
Fri 5/89:35 pm
SEA
-
TYS
2 stops38h 58m
Frontier
Deal found 2/23$304
This United Airlines deal was found by Cheapflights users on 2/21. 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 3/244:18 pm
TYS
-
PSC
1 stop7h 36m
United Airlines
Tue 4/215:00 am
PSC
-
TYS
1 stop7h 06m
United Airlines
Deal found 2/21$321
This Kiwi.com deal was found by Cheapflights users on 2/23. 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 4/234:28 pm
TYS
-
SEA
1 stop20h 24m
Multiple Airlines
Sun 4/267:12 pm
SEA
-
TYS
2 stops19h 18m
Multiple Airlines
Deal found 2/23$328
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:24 pm
TYS
-
SEA
2 stops29h 10m
Multiple Airlines
Wed 4/157:12 pm
SEA
-
TYS
1 stop17h 21m
Multiple Airlines
Deal found 2/22$332
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:28 pm
TYS
-
PDX
1 stop21h 35m
Multiple Airlines
Sun 5/1012:52 pm
PDX
-
TYS
1 stop30h 59m
Multiple Airlines
Deal found 2/22$333
This American Airlines deal was found by Cheapflights users on 2/23. 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 5/56:00 am
TYS
-
PDX
1 stop8h 01m
American Airlines
Sat 5/91:52 pm
PDX
-
TYS
1 stop7h 04m
American Airlines
Deal found 2/23$344
This CheapOair deal was found by Cheapflights users on 2/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:51 pm
TYS
-
SEA
1 stop20h 10m
Frontier
Sun 3/812:24 pm
SEA
-
TYS
1 stop24h 01m
Frontier
Deal found 2/21$352
This American Airlines deal was found by Cheapflights users on 2/23. 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 5/54:09 pm
TYS
-
SEA
1 stop9h 38m
American Airlines
Tue 5/127:09 am
SEA
-
TYS
1 stop7h 55m
American Airlines
Deal found 2/23$359
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:18 pm
TYS
-
PDX
1 stop7h 52m
United Airlines
Tue 3/317:00 am
PDX
-
TYS
1 stop6h 52m
United Airlines
Deal found 2/22$359
This CheapOair deal was found by Cheapflights users on 2/23. 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 2/276:51 pm
TYS
-
SEA
1 stop20h 10m
Frontier
Sun 3/112:00 pm
SEA
-
TYS
1 stop28h 18m
Frontier
Deal found 2/23$367
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:45 am
TYS
-
PDX
1 stop7h 30m
United Airlines
Sat 5/97:00 am
PDX
-
TYS
1 stop6h 54m
United Airlines
Deal found 2/22$367
This Kiwi.com deal was found by Cheapflights users on 2/23. 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 5/217:00 am
TYS
-
SEA
1 stop15h 59m
Multiple Airlines
Thu 5/2811:25 am
SEA
-
TYS
1 stop28h 48m
Multiple Airlines
Deal found 2/23$370

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 February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$321
(United Airlines)

One-way from

$76
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$550
Provider with most accurate pricing for Knoxville McGhee Tyson-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Seattle/Tacoma Intl flights.
Search Deals
From Knoxville McGhee Tyson to Washington
Search Deals
One-way flight from Knoxville McGhee Tyson to Washington
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 24, 2026.
Use the filters below to find and compare flights from Knoxville to Washington that are best for you.

Fly from

Knoxville

Fly to

Washington

Route

Depart

Return

Price

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 4/7

5:48 pm-10:29 pm

1 stop7h 41m

Portland

Thu 4/9

10:56 pm-10:08 am

1 stop8h 12m

$396

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

Tue 3/24

4:18 pm-8:54 pm

1 stop7h 36m

Pasco Tri Cities

Wed 4/15

5:00 am-3:06 pm

1 stop7h 06m

$399

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 6/24

3:20 pm-11:44 pm

2 stops11h 24m

Spokane

Tue 6/30

10:45 pm-9:11 am

1 stop7h 26m

$411

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 5/20

4:09 pm-10:50 pm

1 stop9h 41m

Portland

Tue 5/26

6:15 am-6:17 pm

1 stop9h 02m

$413

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

Tue 3/24

4:18 pm-8:54 pm

1 stop7h 36m

Pasco Tri Cities

Tue 4/21

5:00 am-5:01 pm

2 stops9h 01m

$419

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Thu 5/7

4:09 pm-10:50 pm

1 stop9h 41m

Portland

Sun 5/10

11:56 am-11:56 pm

1 stop9h 00m

$421

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 5/30

5:57 pm-10:39 pm

1 stop7h 42m

Seattle/Tacoma Intl

Sat 6/6

7:00 am-4:51 pm

1 stop6h 51m

$437

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Fri 7/24

6:15 pm-11:35 pm

2 stops8h 20m

Spokane

Fri 8/7

10:45 pm-9:11 am

1 stop7h 26m

$442

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 6/24

2:45 pm-10:15 pm

2 stops10h 30m

Spokane

Tue 6/30

5:00 am-6:20 pm

2 stops10h 20m

$450

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 4/25

7:45 am-11:00 pm

2 stops18h 15m

Seattle/Tacoma Intl

Sat 5/2

6:55 pm-11:40 am

2 stops13h 45m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 58 results
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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.
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

What is the cheapest month to book a flight from Knoxville to State of Washington?

Currently, April is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $161). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $318). 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.

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 February 24, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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.
Delta
7.9
Good
8,239 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,239 reviews
Delta
7.9
Good
8,239 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,344 reviews
Delta
7.9
Good
8,239 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,344 reviews
Delta
7.9
Good
8,239 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,043 reviews
Delta
7.9
Good
8,239 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • What airport do you fly from for flights from Knoxville to Washington?

    If you book a flight to Washington from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville.

  • How long is the flight from Knoxville to State of Washington?

    Airlines like United Airlines, Delta, and American Airlines fly from Knoxville to State of Washington in about 7h 41m. The time it takes to get you to your destination can typically vary by up to 3h 43m. There are 2107 mi between Knoxville and State of Washington. This flight may include one or multiple stops.

  • What are the most popular routes from Knoxville to State of Washington?

    The most popular route from Knoxville to State of Washington is Knoxville McGhee Tyson - Seattle/Tacoma Intl. You may also consider Knoxville McGhee Tyson - Portland or Knoxville McGhee Tyson - Spokane.

  • Can I find deals for flights from Knoxville to Washington that include hotel bookings?

    Yes. In addition to deals on Knoxville to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Washington.

  • Can I find deals for business class flights from Knoxville to Washington?

    Yes. Cheapflights offers flight deals from Knoxville to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to State of Washington?

    Currently, April is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $161). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $318). 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.

See more FAQs

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Top 4 airlines flying from Knoxville to Washington

Discover the top 4 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 February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$278FlexibilityNo cancel feeOn-time62%
DeltaCheapest$269Average$496FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$531FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$630FlexibilityNo cancel feeOn-time69%

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