What airlines fly to State of Washington?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to State of Washington from Knoxville according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 5 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to Washington?

Allegiant Air, Delta, and American Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Washington

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Washington?

Prices for flights from Knoxville McGhee Tyson Airport to Washington were last updated today.

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Washington?

There are 5 operators available for flights from Knoxville McGhee Tyson Airport to Washington as of June 2026.

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Washington?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$152 Cheap Flights from Knoxville to Washington in 2026

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Find the cheapest flights from Knoxville to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 9:48 am

TYS

SEA

30h 18m

2 stops

7:41 pm - 1:49 pm

SEA

TYS

15h 08m

1 stop

$268Multiple Airlines

ma., aug. 17 - on., aug. 26

8:00 am - 9:48 am

TYS

SEA

28h 48m

2 stops

7:00 am - 1:44 pm

SEA

TYS

27h 44m

1 stop

$279Multiple Airlines

ma., aug. 31 - on., sep. 9

6:15 pm - 11:33 pm

TYS

PSC

8h 18m

2 stops

7:15 am - 4:41 pm

PSC

TYS

6h 26m

1 stop

$354Delta

on., aug. 26 - sø., aug. 30

8:19 pm - 4:31 pm

TYS

PDX

23h 12m

1 stop

5:16 pm - 7:24 pm

PDX

TYS

23h 08m

1 stop

$380Frontier

ma., jul. 20 - ti., aug. 4

6:10 pm - 11:55 pm

TYS

PDX

8h 45m

1 stop

12:45 am - 11:13 am

PDX

TYS

7h 28m

1 stop

$395American Airlines

ti., jul. 14 - ma., jul. 20

11:38 am - 11:55 pm

TYS

PSC

15h 17m

2 stops

7:15 am - 4:41 pm

PSC

TYS

6h 26m

1 stop

$399Delta

on., aug. 26 - sø., aug. 30

8:19 pm - 4:31 pm

TYS

PDX

23h 12m

1 stop

5:16 pm - 7:24 pm

PDX

TYS

23h 08m

1 stop

$400Frontier

ma., jul. 20 - ti., aug. 4

6:03 am - 11:54 am

TYS

GEG

8h 51m

1 stop

6:00 am - 4:42 pm

GEG

TYS

7h 42m

1 stop

$410American Airlines

ti., sep. 1 - lø., sep. 12

1:45 pm - 11:49 pm

TYS

ALW

13h 04m

2 stops

5:08 am - 9:24 pm

ALW

TYS

13h 16m

2 stops

$882Alaska Airlines

fr., okt. 30 - ma., nov. 2

3:14 pm - 11:49 pm

TYS

ALW

11h 35m

2 stops

5:08 am - 9:31 pm

ALW

TYS

13h 23m

2 stops

$1,037Alaska Airlines

fr., okt. 30 - ma., nov. 2

Frontier flights from Knoxville to State of Washington

Our best Frontier deals on Knoxville to State of Washington flight tickets

Frontier

Jul 20

TYS8:19 pmKnoxville McGhee Tyson

23h 12m

1 stop

PDX4:31 pmPortland

Aug 4

PDX5:16 pmPortland

23h 08m

1 stop

TYS7:24 pmKnoxville McGhee Tyson

$380

Frontier

Jul 13

TYS8:19 pmKnoxville McGhee Tyson

15h 58m

1 stop

SEA9:17 amSeattle/Tacoma Intl

Jul 16

SEA7:06 pmSeattle/Tacoma Intl

21h 18m

1 stop

TYS7:24 pmKnoxville McGhee Tyson

$400

Frontier

Aug 14

TYS8:19 pmKnoxville McGhee Tyson

15h 45m

1 stop

SEA9:04 amSeattle/Tacoma Intl

Aug 16

SEA7:06 pmSeattle/Tacoma Intl

21h 18m

1 stop

TYS7:24 pmKnoxville McGhee Tyson

$402

United Airlines flights from Knoxville to State of Washington

Our best United Airlines deals on Knoxville to State of Washington flight tickets

United Airlines

Sep 10

TYS7:00 amKnoxville McGhee Tyson

7h 32m

1 stop

SEA11:32 amSeattle/Tacoma Intl

Sep 10

SEA11:00 pmSeattle/Tacoma Intl

7h 57m

1 stop

TYS9:57 amKnoxville McGhee Tyson

$431

United Airlines

Aug 3

TYS4:56 pmKnoxville McGhee Tyson

7h 09m

1 stop

GEG9:05 pmSpokane

Aug 17

GEG5:00 amSpokane

7h 54m

1 stop

TYS3:54 pmKnoxville McGhee Tyson

$457

United Airlines

Oct 27

TYS4:25 pmKnoxville McGhee Tyson

7h 44m

1 stop

GEG9:09 pmSpokane

Oct 28

GEG5:00 amSpokane

6h 36m

1 stop

TYS2:36 pmKnoxville McGhee Tyson

$495

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

ma. 8/17

6:30 am-9:48 am

2 stops30h 18m

Seattle/Tacoma Intl

on. 8/26

7:41 pm-1:49 pm

1 stop15h 08m

$268

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

ma. 8/31

8:00 am-9:48 am

2 stops28h 48m

Seattle/Tacoma Intl

on. 9/9

7:00 am-1:44 pm

1 stop27h 44m

$279

Quickest round-trip

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

on. 8/26

6:15 pm-11:33 pm

2 stops8h 18m

Pasco Tri Cities

sø. 8/30

7:15 am-4:41 pm

1 stop6h 26m

$354

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

ma. 7/20

8:19 pm-4:31 pm

1 stop23h 12m

Portland

ti. 8/4

5:16 pm-7:24 pm

1 stop23h 08m

$380

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

ti. 7/14

6:10 pm-11:55 pm

1 stop8h 45m

Portland

ma. 7/20

12:45 am-11:13 am

1 stop7h 28m

$395

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

on. 8/26

11:38 am-11:55 pm

2 stops15h 17m

Pasco Tri Cities

sø. 8/30

7:15 am-4:41 pm

1 stop6h 26m

$399

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

ma. 7/20

8:19 pm-4:31 pm

1 stop23h 12m

Portland

ti. 8/4

5:16 pm-7:24 pm

1 stop23h 08m

$400

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

ti. 9/1

6:03 am-11:54 am

1 stop8h 51m

Spokane

lø. 9/12

6:00 am-4:42 pm

1 stop7h 42m

$410

KnoxvilleWalla Walla

TYS - ALW

TYSALW

Knoxville McGhee Tyson

fr. 10/30

1:45 pm-11:49 pm

2 stops13h 04m

Walla Walla

ma. 11/2

5:08 am-9:24 pm

2 stops13h 16m

$882

KnoxvilleWalla Walla

TYS - ALW

TYSALW

Knoxville McGhee Tyson

fr. 10/30

3:14 pm-11:49 pm

2 stops11h 35m

Walla Walla

ma. 11/2

5:08 am-9:31 pm

2 stops13h 23m

$1,037

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of August is, on average, the cheapest month to fly to State of Washington from Knoxville, with most prices found around $179. If you aren’t able to travel to State of Washington during the month of August, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $186.

How far in advance should I book a flight from Knoxville to Washington?

You are more likely to see cheaper flights to State of Washington from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $542 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Knoxville for as low as $431 on momondo.

Can stopping save me money on Knoxville to State of Washington flights?

You could potentially save up to 43% on your flight if you consider stops on a Knoxville to State of Washington flight.

Cheap Knoxville to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to State of Washington

Fastest flight time	6h 56m
Direct flights	None

The fastest flight from Knoxville to State of Washington takes 6h 56m

There are no direct flights from Knoxville to State of Washington. There are no popular flight routes from Knoxville to State of Washington.

Search flight deals

Frequently asked questions about flying from Knoxville to Washington

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Washington?
Prices for flights from Knoxville McGhee Tyson Airport to Washington were last updated today.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Washington?
There are 5 operators available for flights from Knoxville McGhee Tyson Airport to Washington as of June 2026.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Knoxville to State of Washington

Compare and see reviews for airlines that fly from Knoxville to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $179	Free Cancellation	Rating 5.6 2,906 reviews	Search Frontier flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,642 reviews	Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.9 8,396 reviews	Search Delta flights
United Airlines	PriceFrom $304	Free Cancellation	Rating 7.4 9,780 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $513	Free Cancellation	Rating 7.9 12,481 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Washington?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Knoxville to Washington. momondo saves you time and could save you money on your trip.

Can I find flights from Knoxville to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Knoxville to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Knoxville to Washington?

momondo provides multiple filters to help you find the best flight to Washington from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Knoxville to Washington right now. Can momondo alert me if prices change?

Price alerts on flights to Washington from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.