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$94+ 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(Kiwi.com)

One-way from

$94
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$545
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. 11% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Sun 12/76:30 amTYS - SEA
1 stop8h 23mMultiple Airlines
Sat 12/1312:48 pmSEA - TYS
1 stop24h 09mMultiple Airlines
Deal found 10/15$181
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Thu 10/307:00 amTYS - SEA
1 stop8h 13mMultiple Airlines
Sat 11/19:22 pmSEA - TYS
1 stop23h 20mMultiple Airlines
Deal found 10/15$216
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:47 pmTYS - SEA
2 stops18h 45mFrontier
Sun 12/77:05 pmSEA - TYS
1 stop17h 47mFrontier
Deal found 10/14$221
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:00 amTYS - SEA
1 stop27h 33mMultiple Airlines
Sat 11/112:58 pmSEA - TYS
1 stop22h 35mMultiple Airlines
Deal found 10/14$223
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:00 amTYS - SEA
1 stop8h 13mMultiple Airlines
Sun 11/22:22 pmSEA - TYS
2 stops23h 47mMultiple Airlines
Deal found 10/14$225
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Sun 12/76:30 amTYS - SEA
1 stop8h 23mMultiple Airlines
Sun 12/1412:48 pmSEA - TYS
1 stop24h 09mMultiple Airlines
Deal found 10/15$228
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 10/307:00 amTYS - SEA
1 stop8h 13mMultiple Airlines
Tue 11/41:37 pmSEA - TYS
2 stops28h 27mMultiple Airlines
Deal found 10/16$246
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Sun 12/76:30 amTYS - SEA
1 stop8h 23mMultiple Airlines
Fri 12/129:45 amSEA - TYS
2 stops23h 18mMultiple Airlines
Deal found 10/15$248
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:47 pmTYS - SEA
1 stop21h 09mMultiple Airlines
Thu 12/117:05 pmSEA - TYS
2 stops21h 09mMultiple Airlines
Deal found 10/14$263
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:10 amTYS - PDX
1 stop8h 59mAmerican Airlines
Sat 11/1510:15 pmPDX - TYS
1 stop7h 19mAmerican Airlines
Deal found 10/14$269
This American Airlines deal was found by Cheapflights users on 10/13. 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 11/125:10 amTYS - PDX
1 stop8h 59mAmerican Airlines
Wed 11/1911:40 amPDX - TYS
2 stops9h 28mAmerican Airlines
Deal found 10/13$274
This CheapOair deal was found by Cheapflights users on 10/16. 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 CheapOair 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
Thu 11/201:01 pmSEA - TYS
1 stop23h 52mFrontier
Deal found 10/16$276

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 October 16, 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 12/4

4:47 pm-10:56 am

1 stop21h 09m

Seattle/Tacoma Intl

Sun 12/7

7:05 pm-3:52 pm

1 stop17h 47m

$232

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 11/12

5:10 am-11:09 am

1 stop8h 59m

Portland

Wed 11/19

11:40 am-12:08 am

2 stops9h 28m

$274

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 11/12

5:35 am-1:18 pm

2 stops10h 43m

Portland

Wed 11/19

11:15 pm-2:48 pm

2 stops12h 33m

$279

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 12/10

6:29 am-12:54 pm

1 stop9h 25m

Portland

Mon 12/15

11:25 pm-11:47 am

1 stop9h 22m

$299

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Fri 10/31

5:44 am-12:50 pm

2 stops10h 06m

Portland

Sat 11/8

10:10 pm-11:45 am

2 stops10h 35m

$309

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sun 12/7

6:30 am-11:53 am

1 stop8h 23m

Seattle/Tacoma Intl

Thu 12/18

1:25 pm-9:47 pm

2 stops29h 22m

$326

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 12/13

1:14 pm-11:25 pm

1 stop13h 11m

Seattle/Tacoma Intl

Wed 12/31

12:14 am-3:56 pm

1 stop12h 42m

$355

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 11/8

2:41 pm-11:54 pm

1 stop12h 13m

Seattle/Tacoma Intl

Sat 11/15

3:42 pm-9:37 am

1 stop14h 55m

$394

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Fri 2/27

7:30 am-2:24 pm

1 stop9h 54m

Seattle/Tacoma Intl

Tue 3/3

3:20 pm-11:07 am

1 stop16h 47m

$401

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 12/9

6:29 am-12:58 pm

1 stop9h 29m

Seattle/Tacoma Intl

Mon 12/15

2:25 pm-9:38 am

2 stops16h 13m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 40 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 $343). 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 October 16, 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 October 16, 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
7,984 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Frontier
5.8
Fair
3,137 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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, American Airlines, and Delta fly from Knoxville to State of Washington in about 8h 59m. The time it takes to get you to your destination can typically vary by up to 12h 10m. 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 American Airlines ($219), United Airlines ($219), and Delta ($269).

  • 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 $343). 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

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$209Average$514FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$248Average$330FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$553FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$760FlexibilityNo cancel feeOn-time69%

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