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$78+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$183
(FlightHub)

One-way from

$78
(Priceline)

Popular in

February

Cheapest in

August

Average price

$443
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 ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Priceline deal was found by Cheapflights users on 8/14. 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 9/118:40 pmTYS - SEA
1 stop6h 50mFrontier
Thu 9/186:12 amSEA - TYS
1 stop10h 38mFrontier
Deal found 8/14$202
This Priceline deal was found by Cheapflights users on 8/14. 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 8/257:10 pmTYS - PDX
1 stop8h 05mFrontier
Thu 8/286:27 amPDX - TYS
1 stop10h 14mFrontier
Deal found 8/14$224
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:17 pmTYS - SEA
1 stop14h 16mFrontier
Sun 10/268:43 pmSEA - TYS
1 stop19h 49mFrontier
Deal found 8/14$229
This Frontier deal was found by Cheapflights users on 8/14. 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 10/28:40 pmTYS - SEA
1 stop6h 50mFrontier
Sun 10/58:35 pmSEA - TYS
2 stops20h 10mFrontier
Deal found 8/14$240
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:36 pmTYS - SEA
1 stop15h 58mFrontier
Mon 8/256:17 amSEA - TYS
1 stop9h 08mFrontier
Deal found 8/14$241
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:14 pmTYS - SEA
1 stop10h 17mFrontier
Sun 11/166:00 amSEA - TYS
1 stop7h 14mFrontier
Deal found 8/14$242
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/134:49 pmTYS - PDX
1 stop10h 16mAmerican Airlines
Sat 9/205:38 amPDX - TYS
1 stop7h 03mAmerican Airlines
Deal found 8/12$251
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/77:00 amTYS - SEA
1 stop20h 30mMultiple Airlines
Sat 9/137:00 amSEA - TYS
1 stop27h 43mMultiple Airlines
Deal found 8/12$273
This Priceline deal was found by Cheapflights users on 8/12. 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 - PDX
1 stop6h 37mFrontier
Thu 9/256:05 amPDX - TYS
1 stop10h 45mFrontier
Deal found 8/12$277
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:08 pmTYS - PDX
1 stop10h 04mFrontier
Mon 9/296:05 amPDX - TYS
1 stop10h 40mFrontier
Deal found 8/14$279
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 9/244:49 pmTYS - PDX
1 stop10h 16mAmerican Airlines
Mon 9/299:56 pmPDX - TYS
1 stop9h 00mAmerican Airlines
Deal found 8/13$280
This Delta deal was found by Cheapflights users on 8/12. 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 9/245:45 amTYS - PDX
2 stops10h 15mDelta
Mon 9/2910:50 pmPDX - TYS
1 stop9h 51mDelta
Deal found 8/12$285

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 August 14, 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 9/11

8:40 pm-12:30 am

1 stop6h 50m

Seattle/Tacoma Intl

Thu 9/18

6:12 am-7:50 pm

1 stop10h 38m

$202

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 9/29

8:35 pm-12:30 am

1 stop6h 55m

Seattle/Tacoma Intl

Sun 10/5

8:35 pm-7:45 pm

2 stops20h 10m

$202

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Mon 8/25

7:10 pm-12:15 am

1 stop8h 05m

Portland

Thu 8/28

6:27 am-7:41 pm

1 stop10h 14m

$224

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 10/16

8:17 pm-7:33 am

1 stop14h 16m

Seattle/Tacoma Intl

Sun 10/26

8:43 pm-7:32 pm

1 stop19h 49m

$229

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 10/2

8:40 pm-12:30 am

1 stop6h 50m

Seattle/Tacoma Intl

Sun 10/5

8:35 pm-7:45 pm

2 stops20h 10m

$240

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 11/13

5:14 pm-12:31 am

1 stop10h 17m

Seattle/Tacoma Intl

Sun 11/16

6:00 am-4:14 pm

1 stop7h 14m

$242

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/30

6:00 am-11:14 am

1 stop8h 14m

Portland

Tue 10/7

11:59 pm-11:45 am

1 stop8h 46m

$251

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Sat 9/13

2:07 pm-6:54 pm

1 stop7h 47m

Portland

Sat 9/20

2:06 pm-12:21 am

1 stop7h 15m

$251

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/16

6:00 am-11:14 am

1 stop8h 14m

Portland

Tue 9/23

9:56 pm-9:56 am

1 stop9h 00m

$251

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 9/30

4:13 pm-11:52 pm

2 stops10h 39m

Portland

Tue 10/7

10:10 pm-9:00 am

1 stop7h 50m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 57 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 $389). 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 August 14, 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 August 14, 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
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
3,217 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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.

  • 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 $389). 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$178Average$330FlexibilityNo cancel feeOn-time62%
DeltaCheapest$209Average$527FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$294Average$512FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$785FlexibilityNo cancel feeOn-time69%

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