HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$142+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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

Keep the following information in mind while searching for Knoxville to Washington flight deals. Data was last updated June 12, 2025.

Round-trip from

$251
(American Airlines)

One-way from

$142
(Mytrip)

Popular in

February

Cheapest in

August

Average price

$711
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. 4% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:27 pmTYS - PDX
1 stop8h 53mAmerican Airlines
Tue 8/262:05 pmPDX - TYS
1 stop7h 14mAmerican Airlines
Deal found 6/11$251
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/54:02 pmTYS - PDX
1 stop8h 47mDelta
Tue 8/126:00 amPDX - TYS
1 stop8h 19mDelta
Deal found 6/10$271
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:37 pmTYS - GEG
1 stop9h 15mAmerican Airlines
Tue 9/3012:35 pmGEG - TYS
1 stop8h 46mAmerican Airlines
Deal found 6/11$289
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2511:01 amTYS - PDX
1 stop14h 45mMultiple Airlines
Fri 8/18:22 amPDX - TYS
2 stops34h 20mMultiple Airlines
Deal found 6/10$292
This FlightHub deal was found by Cheapflights users on 6/10. 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 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
Sat 8/3012:40 pmSEA - TYS
1 stop28h 01mFrontier
Deal found 6/10$301
This Frontier deal was found by Cheapflights users on 6/10. 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 8/218:36 pmTYS - PDX
1 stop6h 39mFrontier
Thu 8/286:27 amPDX - TYS
1 stop10h 14mFrontier
Deal found 6/10$301
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/152:48 pmTYS - SEA
1 stop8h 53mAmerican Airlines
Thu 7/2412:59 amSEA - TYS
1 stop7h 42mAmerican Airlines
Deal found 6/10$309
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2212:25 pmTYS - GEG
2 stops12h 19mDelta
Mon 8/256:50 amGEG - TYS
1 stop6h 34mDelta
Deal found 6/10$349
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:55 amTYS - PDX
2 stops11h 52mAllegiant Air
Fri 8/18:22 amPDX - TYS
2 stops34h 20mAllegiant Air
Deal found 6/10$359
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/37:00 amTYS - PDX
1 stop7h 43mUnited Airlines
Fri 7/1110:54 amPDX - TYS
1 stop8h 43mUnited Airlines
Deal found 6/10$368
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:01 amTYS - SEA
1 stop14h 46mMultiple Airlines
Sun 7/1311:59 pmSEA - TYS
2 stops13h 48mMultiple Airlines
Deal found 6/10$386
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:23 pmTYS - GEG
2 stops12h 36mAlaska Airlines
Mon 8/257:44 pmGEG - TYS
2 stops12h 46mAlaska Airlines
Deal found 6/10$389

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 June 12, 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

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 8/20

5:27 pm-11:20 pm

1 stop8h 53m

Portland

Tue 8/26

2:05 pm-12:19 am

1 stop7h 14m

$251

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 8/5

4:02 pm-9:49 pm

1 stop8h 47m

Portland

Tue 8/12

6:00 am-5:19 pm

1 stop8h 19m

$271

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Fri 7/25

11:01 am-10:46 pm

1 stop14h 45m

Portland

Fri 8/1

8:22 am-9:42 pm

2 stops34h 20m

$292

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 8/21

8:36 pm-9:34 am

1 stop15h 58m

Seattle/Tacoma Intl

Sat 8/30

12:40 pm-7:41 pm

1 stop28h 01m

$301

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Thu 8/21

8:36 pm-12:15 am

1 stop6h 39m

Portland

Thu 8/28

6:27 am-7:41 pm

1 stop10h 14m

$301

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 7/15

2:48 pm-8:41 pm

1 stop8h 53m

Seattle/Tacoma Intl

Thu 7/24

12:59 am-11:41 am

1 stop7h 42m

$309

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Sat 8/23

6:39 pm-10:55 pm

1 stop7h 16m

Spokane

Mon 8/25

12:29 pm-12:19 am

1 stop8h 50m

$344

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Fri 8/22

12:25 pm-9:44 pm

2 stops12h 19m

Spokane

Mon 8/25

6:50 am-4:24 pm

1 stop6h 34m

$349

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Fri 7/25

6:55 am-3:47 pm

2 stops11h 52m

Portland

Fri 8/1

8:22 am-9:42 pm

2 stops34h 20m

$359

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Thu 7/3

7:00 am-11:43 am

1 stop7h 43m

Portland

Fri 7/11

10:54 am-10:37 pm

1 stop8h 43m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 35 results
1
2
3
4

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 July is currently the most expensive (average of $391). 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 June 12, 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Knoxville to Washington, such as Alaska Airlines, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 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 Allegiant Air ($169), Frontier ($180), and Delta ($243).

  • 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 July is currently the most expensive (average of $391). 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.
Nashville to Seattle flights
Nashville to LaGuardia flights
Nashville to John F Kennedy Intl flights
Nashville to Las Vegas flights
Nashville to Orlando flights
Nashville to Newark flights
Nashville to Denver flights
Nashville to Los Angeles flights
Nashville to Dallas/Fort Worth flights
Nashville to Fort Lauderdale flights
Nashville to Boston flights
Memphis to Las Vegas flights
Memphis to O'Hare Intl flights
Nashville to O'Hare Intl flights
Memphis to Los Angeles flights
Memphis to Hobby flights
Memphis to LaGuardia flights
Nashville to Miami flights
Nashville to Portland flights
Chattanooga to LaGuardia flights
Nashville to Reagan-National flights
Nashville to San Francisco flights
Memphis to Orlando flights
Memphis to Miami flights
Memphis to Dallas/Fort Worth flights
Memphis to Denver flights
Memphis to Newark flights
Memphis to John F Kennedy Intl flights
Memphis to Boston flights
Nashville to Sky Harbor Intl flights
Knoxville to Denver flights
Nashville to Honolulu flights
Chattanooga to John F Kennedy Intl flights
Nashville to Dulles Intl flights
Memphis to George Bush Intcntl flights
Nashville to Hobby flights
Nashville to Minneapolis flights
Chattanooga to O'Hare Intl flights
Nashville to Salt Lake City flights
Knoxville to LaGuardia flights
Memphis to Atlanta flights
Chattanooga to Seattle flights
Nashville to Omaha flights
Memphis to Reagan-National flights
Nashville to Santa Ana flights
Knoxville to John F Kennedy Intl flights
Nashville to Baltimore flights
Nashville to Ontario flights
Memphis to Seattle flights
Knoxville to O'Hare Intl flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$178Average$287FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$532FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$742FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$531FlexibilityNo cancel feeOn-time71%

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.