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$122+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$154
(Priceline)

One-way from

$122
(Delta)

Popular in

February

Cheapest in

August

Average price

$525
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 ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This Priceline deal was found by Cheapflights users on 9/10. 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.
Thu 9/258:40 pmTYS - PDX
1 stop6h 32mFrontier
Mon 9/296:05 amPDX - TYS
1 stop10h 40mFrontier
Deal found 9/10$154
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:17 pmTYS - SEA
1 stop19h 56mFrontier
Sat 11/1512:58 pmSEA - TYS
1 stop26h 24mFrontier
Deal found 9/9$194
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:40 pmTYS - SEA
1 stop6h 50mFrontier
Mon 9/296:12 amSEA - TYS
1 stop10h 33mFrontier
Deal found 9/10$196
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:35 pmTYS - PDX
1 stop6h 37mFrontier
Fri 10/37:03 pmPDX - TYS
2 stops42h 15mFrontier
Deal found 9/11$207
This Booking.com deal was found by Cheapflights users on 9/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:35 pmTYS - SEA
1 stop29h 24mFrontier
Mon 9/226:12 amSEA - TYS
1 stop10h 33mFrontier
Deal found 9/8$209
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/145:37 pmTYS - SEA
1 stop9h 50mAmerican Airlines
Wed 10/1510:54 pmSEA - TYS
1 stop8h 56mAmerican Airlines
Deal found 9/10$243
This Delta deal was found by Cheapflights users on 9/11. 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 9/305:45 amTYS - PDX
1 stop7h 47mDelta
Sat 10/410:05 pmPDX - TYS
1 stop8h 39mDelta
Deal found 9/11$243
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/228:35 pmTYS - PDX
1 stop6h 37mFrontier
Mon 9/296:05 amPDX - TYS
1 stop10h 40mFrontier
Deal found 9/9$245
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:17 pmTYS - SEA
1 stop19h 56mMultiple Airlines
Sat 11/157:17 pmSEA - TYS
2 stops15h 27mMultiple Airlines
Deal found 9/9$246
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/228:35 pmTYS - SEA
1 stop6h 55mFrontier
Thu 9/256:12 amSEA - TYS
1 stop10h 38mFrontier
Deal found 9/8$247
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 9/298:35 pmTYS - PDX
1 stop28h 59mFrontier
Sat 10/47:15 amPDX - TYS
1 stop30h 03mFrontier
Deal found 9/11$257
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:17 pmTYS - SEA
1 stop19h 56mMultiple Airlines
Sun 11/1611:43 amSEA - TYS
2 stops23h 14mMultiple Airlines
Deal found 9/9$286

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 September 11, 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

Wed 12/10

6:29 am-12:58 pm

1 stop9h 29m

Seattle/Tacoma Intl

Tue 1/6

1:45 pm-11:44 pm

1 stop6h 59m

$243

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/30

5:45 am-10:32 am

1 stop7h 47m

Portland

Sat 10/4

10:05 pm-9:44 am

1 stop8h 39m

$243

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/30

2:07 pm-9:16 pm

2 stops10h 09m

Portland

Sat 10/4

2:06 pm-12:21 am

1 stop7h 15m

$248

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Mon 9/29

8:35 pm-10:34 pm

1 stop28h 59m

Portland

Sat 10/4

7:15 am-4:18 pm

1 stop30h 03m

$257

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Mon 9/22

8:35 pm-12:12 am

1 stop6h 37m

Portland

Thu 9/25

6:05 am-7:50 pm

1 stop10h 45m

$291

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Sat 10/18

12:45 pm-8:23 am

1 stop22h 38m

Portland

Wed 10/22

12:43 pm-7:32 pm

1 stop27h 49m

$296

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Thu 9/25

7:00 am-12:12 am

1 stop20h 12m

Portland

Sat 10/4

7:15 am-4:18 pm

1 stop30h 03m

$306

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/30

5:53 pm-10:30 pm

1 stop7h 37m

Portland

Fri 10/3

7:02 am-6:10 pm

1 stop8h 08m

$320

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/30

4:49 pm-11:54 pm

1 stop10h 05m

Portland

Fri 10/3

11:42 am-12:21 am

1 stop9h 39m

$320

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 12/10

5:25 am-10:18 am

1 stop7h 53m

Seattle/Tacoma Intl

Mon 1/5

11:05 pm-11:47 am

1 stop9h 42m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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, January is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $238). Flying from Knoxville to State of Washington in June is currently the most expensive (average of $388). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to State of Washington as you normally would.

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 September 11, 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
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,177 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Delta, American Airlines, and Frontier fly from Knoxville to State of Washington in about 9h 29m. The time it takes to get you to your destination can typically vary by up to 19h 30m. There are 2109 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 Delta ($122), Frontier ($126), and American Airlines ($135).

  • 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, January is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $238). Flying from Knoxville to State of Washington in June is currently the most expensive (average of $388). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$178Average$368FlexibilityNo cancel feeOn-time62%
DeltaCheapest$209Average$520FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$513FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$770FlexibilityNo cancel feeOn-time69%

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