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$157+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
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 January 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/245:14 pm
TYS
-
SEA
2 stops41h 59m
Multiple Airlines
Tue 3/37:33 pm
SEA
-
TYS
1 stop20h 30m
Multiple Airlines
Deal found 1/27$288
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 4/241:43 pm
TYS
-
SEA
1 stop9h 37m
Multiple Airlines
Sun 4/269:35 pm
SEA
-
TYS
1 stop22h 16m
Multiple Airlines
Deal found 1/26$335
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/244:02 pm
TYS
-
SEA
1 stop11h 22m
American Airlines
Tue 3/37:15 am
SEA
-
TYS
1 stop10h 25m
American Airlines
Deal found 1/28$355
This United Airlines deal was found by Cheapflights users on 1/27. 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 4/77:00 am
TYS
-
PDX
1 stop7h 46m
United Airlines
Tue 4/147:00 am
PDX
-
TYS
1 stop6h 52m
United Airlines
Deal found 1/27$359
This American Airlines deal was found by Cheapflights users on 1/25. 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 3/1412:21 pm
TYS
-
PDX
1 stop13h 45m
American Airlines
Mon 3/1611:59 pm
PDX
-
TYS
1 stop8h 31m
American Airlines
Deal found 1/25$363
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/249:40 am
TYS
-
SEA
2 stops12h 23m
United Airlines
Tue 3/35:00 am
SEA
-
TYS
1 stop7h 05m
United Airlines
Deal found 1/28$364
This American Airlines deal was found by Cheapflights users on 1/26. 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 2/244:29 pm
TYS
-
PDX
1 stop8h 23m
American Airlines
Tue 3/312:04 pm
PDX
-
TYS
1 stop8h 16m
American Airlines
Deal found 1/26$367
This Southwest deal was found by Cheapflights users on 1/27. 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 3/242:25 pm
TYS
-
SEA
2 stops11h 05m
Southwest
Tue 3/315:30 am
SEA
-
TYS
2 stops11h 35m
Southwest
Deal found 1/27$375
This American Airlines deal was found by Cheapflights users on 1/26. 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 5/511:31 am
TYS
-
PDX
1 stop14h 01m
American Airlines
Sat 5/96:22 am
PDX
-
TYS
1 stop12h 13m
American Airlines
Deal found 1/26$375
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 2/234:29 pm
TYS
-
PDX
1 stop8h 23m
American Airlines
Sat 2/2811:35 pm
PDX
-
TYS
1 stop8h 10m
American Airlines
Deal found 1/27$376
This American Airlines deal was found by Cheapflights users on 1/27. 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 2/2412:22 pm
TYS
-
PDX
2 stops11h 22m
American Airlines
Mon 3/95:40 am
PDX
-
TYS
1 stop8h 51m
American Airlines
Deal found 1/27$377
This Delta deal was found by Cheapflights users on 1/27. 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 2/241:00 pm
TYS
-
PDX
2 stops10h 55m
Delta
Mon 3/95:36 pm
PDX
-
TYS
2 stops12h 40m
Delta
Deal found 1/27$383

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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$288
(Kiwi.com)

One-way from

$157
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$574
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. 4% potential increase in price ($26 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 January 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 January 28, 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

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 3/3

11:42 am-12:24 am

1 stop15h 42m

Seattle/Tacoma Intl

Tue 3/10

12:07 am-4:31 pm

1 stop13h 24m

$355

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 2/25

6:45 am-1:44 pm

2 stops9h 59m

Portland

Wed 3/4

12:57 pm-11:44 pm

1 stop7h 47m

$372

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 2/25

5:35 am-12:44 pm

2 stops10h 09m

Portland

Wed 3/4

6:00 am-8:55 pm

2 stops11h 55m

$378

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 4/21

5:26 pm-9:42 pm

1 stop7h 16m

Portland

Wed 4/22

11:15 pm-10:21 am

1 stop8h 06m

$385

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 2/18

4:02 pm-12:17 am

1 stop11h 15m

Portland

Sun 2/22

11:35 pm-8:40 pm

1 stop18h 05m

$385

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 4/15

5:26 pm-9:42 pm

1 stop7h 16m

Portland

Mon 4/20

11:15 pm-10:21 am

1 stop8h 06m

$385

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 2/24

5:35 am-12:44 pm

2 stops10h 09m

Portland

Mon 3/9

7:43 pm-9:16 am

2 stops10h 33m

$387

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 5/27

5:57 pm-9:50 pm

1 stop6h 53m

Spokane

Tue 6/2

7:00 am-5:01 pm

1 stop7h 01m

$389

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 5/27

7:00 am-1:14 pm

1 stop9h 14m

Spokane

Tue 6/2

1:07 pm-11:45 pm

1 stop7h 38m

$389

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 3/3

9:10 am-6:03 pm

2 stops11h 53m

Seattle/Tacoma Intl

Wed 3/11

7:00 am-4:45 pm

1 stop6h 45m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 50 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 $134). 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 January 28, 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
8,124 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Crew

8.5

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
8,124 reviews
Delta
7.9
Good
8,124 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Crew

8.5

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
9,208 reviews
Delta
7.9
Good
8,124 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Crew

8.5

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
11,201 reviews
Delta
7.9
Good
8,124 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Crew

8.5

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
3,056 reviews
Delta
7.9
Good
8,124 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Crew

8.5

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 American Airlines, United Airlines, and Delta fly from Knoxville to State of Washington in about 9h 59m. The time it takes to get you to your destination can typically vary by up to 5h 43m. There are 2107 mi between Knoxville and State of Washington. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Knoxville to State of Washington one-way?

    The cheapest airlines for a one-way flight from Knoxville to State of Washington are Frontier ($93), Delta ($114), and Allegiant Air ($195).

  • 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 $134). 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$278FlexibilityNo cancel feeOn-time62%
DeltaCheapest$192Average$488FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$539FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$673FlexibilityNo cancel feeOn-time69%

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