Washington

$135+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
jun 7 — jun 141
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Washington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 maio 8, 2026.

This Mytrip deal was found by Cheapflights users on 5/7. 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.
qua 8/128:32 pm
TYS
-
SEA
1 stop16h 17m
Frontier
dom 8/167:41 pm
SEA
-
TYS
1 stop20h 55m
Frontier
Deal found 5/7$260
This Gotogate deal was found by Cheapflights users on 5/7. 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.
qua 8/198:32 pm
TYS
-
SEA
1 stop16h 16m
Frontier
qui 8/277:41 pm
SEA
-
TYS
1 stop20h 56m
Frontier
Deal found 5/7$274
This CheapOair deal was found by Cheapflights users on 5/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 8/218:32 pm
TYS
-
PDX
1 stop23h 25m
Frontier
dom 8/2312:26 pm
PDX
-
TYS
1 stop28h 11m
Frontier
Deal found 5/5$280
This Mytrip deal was found by Cheapflights users on 5/7. 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.
qua 7/88:32 pm
TYS
-
SEA
1 stop16h 17m
Frontier
qui 7/233:34 pm
SEA
-
TYS
1 stop25h 02m
Frontier
Deal found 5/7$281
This CheapOair deal was found by Cheapflights users on 5/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 6/18:32 pm
TYS
-
PDX
1 stop23h 29m
Frontier
dom 6/712:35 pm
PDX
-
TYS
1 stop27h 58m
Frontier
Deal found 5/4$300
This Booking.com deal was found by Cheapflights users on 5/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 7/88:32 pm
TYS
-
SEA
1 stop16h 17m
Frontier
ter 7/217:41 pm
SEA
-
TYS
1 stop20h 55m
Frontier
Deal found 5/7$302
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
seg 6/87:25 am
TYS
-
SEA
2 stops29h 23m
Multiple Airlines
qui 6/117:41 pm
SEA
-
TYS
1 stop20h 56m
Multiple Airlines
Deal found 5/7$304
This CheapOair deal was found by Cheapflights users on 5/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 7/18:32 pm
TYS
-
PDX
1 stop23h 25m
Frontier
ter 7/75:16 pm
PDX
-
TYS
1 stop23h 20m
Frontier
Deal found 5/6$324
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
dom 6/77:00 am
TYS
-
SEA
2 stops38h 35m
Multiple Airlines
qui 6/117:41 pm
SEA
-
TYS
1 stop20h 56m
Multiple Airlines
Deal found 5/7$326
This CheapOair deal was found by Cheapflights users on 5/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 7/208:32 pm
TYS
-
PDX
1 stop22h 59m
Frontier
ter 8/45:16 pm
PDX
-
TYS
1 stop23h 20m
Frontier
Deal found 5/5$345
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
seg 6/87:25 am
TYS
-
SEA
2 stops29h 23m
Multiple Airlines
sáb 6/137:41 pm
SEA
-
TYS
1 stop15h 11m
Multiple Airlines
Deal found 5/7$351
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
qui 6/187:00 am
TYS
-
PDX
2 stops39h 47m
Multiple Airlines
ter 6/235:20 pm
PDX
-
TYS
1 stop23h 17m
Multiple Airlines
Deal found 5/4$353

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 maio 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$260
(Mytrip)

One-way from

$135
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$564
Provider with most accurate pricing for Knoxville McGhee Tyson-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Seattle/Tacoma Intl flights.
From Knoxville McGhee Tyson to Washington
One-way flight from Knoxville McGhee Tyson to Washington
Highest demand for flights based on searches. 7% potential increase in price ($47 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 maio 8, 2026.
Use the filters below to find and compare flights from Knoxville to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

qua 7/22

6:45 am-11:39 am

1 stop7h 54m

Spokane

qua 7/29

10:48 pm-11:05 am

1 stop9h 17m

$395

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

sáb 6/13

6:45 am-1:18 pm

1 stop9h 33m

Spokane

ter 6/23

2:23 pm-11:01 pm

1 stop5h 38m

$402

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

qua 8/5

5:45 am-4:09 pm

2 stops13h 24m

Spokane

qui 8/20

5:20 am-5:19 pm

2 stops8h 59m

$438

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

qua 8/5

1:46 pm-8:42 pm

1 stop9h 56m

Spokane

qui 8/20

12:53 pm-11:18 pm

1 stop7h 25m

$443

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

seg 7/13

6:45 am-10:41 am

1 stop6h 56m

Portland

seg 7/20

11:15 pm-10:20 am

1 stop8h 05m

$457

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

seg 8/31

7:10 am-1:55 pm

1 stop9h 45m

Seattle/Tacoma Intl

qui 9/10

11:05 pm-11:55 am

2 stops9h 50m

$462

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

qua 6/10

5:25 pm-11:59 pm

2 stops9h 34m

Spokane

qua 6/17

12:35 pm-11:01 pm

1 stop7h 26m

$462

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

qua 8/19

1:55 pm-11:05 pm

2 stops12h 10m

Seattle/Tacoma Intl

qua 9/9

11:05 pm-11:55 am

2 stops9h 50m

$467

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

qui 7/2

8:11 pm-12:55 am

1 stop7h 44m

Portland

qua 7/8

5:49 am-5:36 pm

1 stop8h 47m

$468
Quickest round-trip

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

seg 6/15

5:40 am-10:00 am

1 stop7h 20m

Seattle/Tacoma Intl

dom 6/28

5:30 am-2:56 pm

1 stop6h 26m

$478

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

How far ahead should I book a flight from Knoxville to State of Washington?

To ensure you get the cheapest price possible for a flight from Knoxville to State of Washington, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to State of Washington?

Currently, August is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $179). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $434). 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.

How much does it cost to fly round-trip from Knoxville to State of Washington?

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 maio 8, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican 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.

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

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 Southwest fly from Knoxville to State of Washington in about 7h 54m. The time it takes to get you to your destination can typically vary by up to 2h 02m. There are 1892 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?

  • 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, August is the cheapest month in which you can book a flight from Knoxville to State of Washington (average of $179). Flying from Knoxville to State of Washington in December is currently the most expensive (average of $434). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Washington

See prices for flight routes from nearby airports that may be better suited for you.

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 maio 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$278FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$518FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$520FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$304Average$607FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.