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$112+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Cheap flight deals from Knoxville to Washington

Keep the following information in mind while searching for Knoxville to Washington flight deals. Data was last updated November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(Kiwi.com)

One-way from

$112
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$456
Provider with most accurate pricing for Knoxville McGhee Tyson-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Seattle/Tacoma Intl flights.
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From Knoxville McGhee Tyson to Washington
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One-way flight from Knoxville McGhee Tyson to Washington
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Highest demand for flights based on searches. 8% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/17. 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.
Thu 12/116:30 amTYS - SEA
1 stop8h 23mMultiple Airlines
Mon 12/153:40 pmSEA - TYS
2 stops21h 22mMultiple Airlines
Deal found 11/17$219
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/224:46 pmTYS - SEA
1 stop22h 44mMultiple Airlines
Sat 1/36:12 pmSEA - TYS
1 stop25h 10mMultiple Airlines
Deal found 11/16$302
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/186:30 amTYS - SEA
1 stop9h 00mMultiple Airlines
Tue 12/231:25 pmSEA - TYS
2 stops28h 14mMultiple Airlines
Deal found 11/16$307
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 12/106:09 pmTYS - SEA
2 stops26h 06mMultiple Airlines
Sat 12/1312:48 pmSEA - TYS
1 stop21h 23mMultiple Airlines
Deal found 11/17$335
This Kiwi.com deal was found by Cheapflights users on 11/15. 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.
Mon 12/224:46 pmTYS - SEA
1 stop22h 44mFrontier
Sun 12/281:25 pmSEA - TYS
2 stops23h 26mFrontier
Deal found 11/15$346
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/186:30 amTYS - SEA
1 stop9h 00mMultiple Airlines
Mon 12/221:25 pmSEA - TYS
2 stops28h 17mMultiple Airlines
Deal found 11/16$357
This American Airlines deal was found by Cheapflights users on 11/16. 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 12/25:10 amTYS - PDX
1 stop10h 47mAmerican Airlines
Sat 12/612:04 pmPDX - TYS
1 stop8h 55mAmerican Airlines
Deal found 11/16$367
This Delta deal was found by Cheapflights users on 11/17. 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.
Wed 12/103:57 pmTYS - PDX
1 stop9h 22mDelta
Fri 12/1212:32 amPDX - TYS
2 stops11h 18mDelta
Deal found 11/17$372
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/146:30 amTYS - PDX
1 stop8h 26mMultiple Airlines
Sun 12/2112:47 pmPDX - TYS
2 stops30h 09mMultiple Airlines
Deal found 11/16$386
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/186:30 amTYS - SEA
1 stop9h 00mMultiple Airlines
Sun 12/211:25 pmSEA - TYS
2 stops23h 26mMultiple Airlines
Deal found 11/16$391
This Kiwi.com deal was found by Cheapflights users on 11/15. 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.
Wed 11/195:07 pmTYS - SEA
2 stops21h 49mMultiple Airlines
Fri 11/211:01 pmSEA - TYS
1 stop27h 09mMultiple Airlines
Deal found 11/15$396
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/131:14 pmTYS - SEA
1 stop13h 11mAmerican Airlines
Wed 12/3112:14 amSEA - TYS
1 stop12h 42mAmerican Airlines
Deal found 11/18$399

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 November 18, 2025.
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

Sat 1/10

7:54 am-10:20 pm

1 stop17h 26m

Seattle/Tacoma Intl

Tue 1/13

8:04 am-10:09 pm

1 stop11h 05m

$365

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 12/10

7:00 am-11:48 am

1 stop7h 48m

Portland

Sat 12/13

7:00 am-5:11 pm

1 stop7h 11m

$367

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 12/2

5:10 am-12:57 pm

1 stop10h 47m

Portland

Sat 12/6

12:04 pm-11:59 pm

1 stop8h 55m

$367

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Thu 1/8

10:00 am-9:34 am

2 stops26h 34m

Portland

Thu 1/15

6:19 pm-4:50 pm

1 stop19h 31m

$372

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 12/10

3:57 pm-10:19 pm

1 stop9h 22m

Portland

Sat 12/13

5:25 am-8:00 pm

2 stops11h 35m

$372

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

Fri 1/23

4:25 pm-9:13 pm

1 stop7h 48m

Pasco Tri Cities

Sun 1/25

3:18 pm-10:57 am

2 stops16h 39m

$384

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

Thu 1/22

4:25 pm-9:13 pm

1 stop7h 48m

Pasco Tri Cities

Sun 1/25

3:18 pm-10:57 am

2 stops16h 39m

$384

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Sun 12/14

6:30 am-11:56 am

1 stop8h 26m

Portland

Sun 12/21

12:47 pm-9:56 pm

2 stops30h 09m

$386

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Sat 1/24

8:45 am-3:21 pm

1 stop9h 36m

Spokane

Sat 1/31

5:00 am-7:27 pm

2 stops11h 27m

$394

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Sun 1/25

6:59 am-12:18 pm

1 stop8h 19m

Portland

Sat 1/31

10:47 am-8:52 pm

1 stop7h 05m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 55 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 $169). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $308). 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.

What is the cheapest time of day to fly from TYS to WA?

Find hourly flight availability from Knoxville to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

When flying from Knoxville to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 67% versus a flight in the morning.

What is the cheapest day to fly from Knoxville to State of Washington?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Washington. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Knoxville to State of Washington flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 18, 2025.
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
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
8,003 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
9,019 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
11,045 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
5.8
Fair
3,105 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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 7h 48m. The time it takes to get you to your destination can typically vary by up to 9h 38m. 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 ($164), American Airlines ($219), and Allegiant Air ($233).

  • 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 $169). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $308). 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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Alternative routes for Knoxville to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$209Average$502FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$248Average$330FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$550FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$766FlexibilityNo cancel feeOn-time69%

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