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$182+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
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 December 9, 2025.

This Mytrip deal was found by Cheapflights users on 12/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:52 pmTYS - SEA
1 stop22h 01mFrontier
Sat 12/1312:48 pmSEA - TYS
1 stop24h 09mFrontier
Deal found 12/7$296
This Gotogate deal was found by Cheapflights users on 12/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:52 pmTYS - SEA
1 stop22h 01mFrontier
Sat 12/1312:48 pmSEA - TYS
1 stop24h 09mFrontier
Deal found 12/7$342
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/251:10 pmTYS - SEA
2 stops24h 01mMultiple Airlines
Sat 1/102:49 pmSEA - TYS
1 stop21h 39mMultiple Airlines
Deal found 12/8$387
This Gotogate deal was found by Cheapflights users on 12/7. 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 Gotogate 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 12/282:54 pmSEA - TYS
1 stop21h 57mFrontier
Deal found 12/7$422
This Gotogate deal was found by Cheapflights users on 12/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:26 pmTYS - SEA
1 stop23h 04mFrontier
Sat 1/102:49 pmSEA - TYS
1 stop21h 39mFrontier
Deal found 12/8$470
This Kiwi.com deal was found by Cheapflights users on 12/7. 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
Sat 12/1312:48 pmSEA - TYS
2 stops24h 45mMultiple Airlines
Deal found 12/7$487
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/256:45 amTYS - SEA
1 stop8h 18mUnited Airlines
Sat 1/106:48 amSEA - TYS
1 stop10h 02mUnited Airlines
Deal found 12/8$489
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/167:00 amTYS - SEA
1 stop7h 45mUnited Airlines
Tue 2/248:17 amSEA - TYS
1 stop8h 12mUnited Airlines
Deal found 12/9$500
This American Airlines deal was found by Cheapflights users on 12/8. 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 12/231:24 pmTYS - SEA
1 stop9h 04mAmerican Airlines
Tue 1/278:04 amSEA - TYS
1 stop11h 05mAmerican Airlines
Deal found 12/8$521
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 - PDX
1 stop8h 13mMultiple Airlines
Sun 12/212:19 pmPDX - TYS
1 stop23h 43mMultiple Airlines
Deal found 12/7$559
This American Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:22 pmTYS - GEG
1 stop7h 35mAmerican Airlines
Sat 12/136:35 amGEG - TYS
2 stops12h 05mAmerican Airlines
Deal found 12/7$569
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/99:10 amTYS - PSC
2 stops14h 37mUnited Airlines
Wed 12/315:00 amPSC - TYS
1 stop14h 29mUnited Airlines
Deal found 12/8$581

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 December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$187
(Frontier)

One-way from

$182
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$948
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. 12% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 9, 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

Thu 1/15

8:18 pm-11:09 am

1 stop17h 51m

Seattle/Tacoma Intl

Thu 1/22

12:34 pm-3:30 pm

1 stop23h 56m

$255

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 1/15

10:00 am-4:28 pm

1 stop9h 28m

Seattle/Tacoma Intl

Sun 1/18

10:05 pm-4:50 pm

1 stop15h 45m

$331

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

Sat 1/17

1:59 pm-9:13 pm

2 stops10h 14m

Pasco Tri Cities

Wed 1/21

6:00 am-10:31 pm

2 stops13h 31m

$389

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 2/24

7:00 am-4:00 pm

2 stops12h 00m

Portland

Mon 3/9

11:46 am-11:40 pm

2 stops8h 54m

$412

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Thu 1/15

2:19 pm-11:11 pm

2 stops11h 52m

Spokane

Tue 1/20

6:00 am-5:42 pm

1 stop8h 42m

$418

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 12/22

4:46 pm-12:30 pm

1 stop22h 44m

Seattle/Tacoma Intl

Sun 12/28

2:54 pm-3:51 pm

1 stop21h 57m

$422

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Sun 1/4

2:01 pm-9:47 am

1 stop22h 46m

Spokane

Sun 1/11

8:58 pm-4:50 pm

1 stop16h 52m

$429

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 2/4

2:19 pm-10:07 pm

1 stop10h 48m

Seattle/Tacoma Intl

Sun 2/8

8:04 am-10:09 pm

1 stop11h 05m

$430

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 1/22

4:41 pm-11:51 pm

1 stop10h 10m

Seattle/Tacoma Intl

Sun 1/25

8:04 am-10:09 pm

1 stop11h 05m

$430

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 4/25

5:30 am-10:17 am

1 stop7h 47m

Seattle/Tacoma Intl

Sat 5/2

11:05 pm-10:10 am

1 stop8h 05m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

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 $172). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $314). 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 December 9, 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 70% 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 December 9, 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
8,011 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

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
9,089 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

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
8,011 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

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
3,085 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

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 Frontier, United Airlines, and American Airlines fly from Knoxville to State of Washington in about 10h 14m. The time it takes to get you to your destination can typically vary by up to 7h 37m. There are 1947 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 $172). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $314). 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.

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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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$192Average$505FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$248Average$330FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$547FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$740FlexibilityNo cancel feeOn-time69%

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