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 53% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 4 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?

Frontier, American Airlines, and Delta 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 4 operators available for flights from Knoxville McGhee Tyson Airport to Washington as of April 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.

$132 Cheap Flights from Knoxville to Washington in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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.

11:26 am - 9:49 am

TYS

SEA

49h 23m

2 stops

7:50 pm - 1:59 pm

SEA

TYS

15h 09m

1 stop

$314Multiple Airlines

Wed, May 13 - Wed, May 20

1:59 pm - 10:22 am

TYS

SEA

23h 23m

2 stops

7:50 pm - 1:59 pm

SEA

TYS

15h 09m

1 stop

$361Multiple Airlines

Sat, May 16 - Sat, May 23

8:19 pm - 10:06 am

TYS

SEA

16h 47m

1 stop

3:19 pm - 7:33 pm

SEA

TYS

25h 14m

1 stop

$366Frontier

Fri, May 22 - Sun, May 31

8:32 pm - 4:57 pm

TYS

PDX

23h 25m

1 stop

5:42 pm - 7:37 pm

PDX

TYS

22h 55m

1 stop

$366Frontier

Mon, Jul 20 - Tue, Aug 4

6:54 pm - 12:44 am

TYS

SEA

8h 50m

1 stop

12:59 am - 12:30 pm

SEA

TYS

8h 31m

1 stop

$375American Airlines

Wed, May 13 - Tue, May 19

7:00 am - 11:37 am

TYS

PDX

7h 37m

1 stop

7:00 am - 6:11 pm

PDX

TYS

8h 11m

1 stop

$375United Airlines

Tue, May 12 - Tue, May 19

4:09 pm - 10:58 pm

TYS

SEA

9h 49m

1 stop

7:10 am - 6:04 pm

SEA

TYS

7h 54m

1 stop

$384American Airlines

Thu, May 14 - Wed, May 20

6:01 pm - 11:55 pm

TYS

PDX

8h 54m

1 stop

5:00 am - 3:07 pm

PDX

TYS

7h 07m

1 stop

$408United Airlines

Mon, May 11 - Tue, May 19

4:00 pm - 11:35 pm

TYS

GEG

10h 35m

2 stops

5:00 pm - 9:11 am

GEG

TYS

13h 11m

2 stops

$427Delta

Tue, Sep 1 - Sat, Sep 12

4:00 pm - 11:35 pm

TYS

GEG

10h 35m

2 stops

5:00 pm - 9:11 am

GEG

TYS

13h 11m

2 stops

$436Delta

Tue, Sep 1 - Sat, Sep 12

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American Airlines flights from Knoxville to State of Washington

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

American Airlines

May 13

TYS6:54 pmKnoxville McGhee Tyson

8h 50m

1 stop

SEA12:44 amSeattle/Tacoma Intl

May 19

SEA12:59 amSeattle/Tacoma Intl

8h 31m

1 stop

TYS12:30 pmKnoxville McGhee Tyson

$375

American Airlines

May 14

TYS4:09 pmKnoxville McGhee Tyson

9h 49m

1 stop

SEA10:58 pmSeattle/Tacoma Intl

May 20

SEA7:10 amSeattle/Tacoma Intl

7h 54m

1 stop

TYS6:04 pmKnoxville McGhee Tyson

$384

American Airlines

Jun 10

TYS5:33 pmKnoxville McGhee Tyson

8h 18m

1 stop

PDX10:51 pmPortland

Jun 15

PDX12:40 amPortland

7h 33m

1 stop

TYS11:13 amKnoxville McGhee Tyson

$389

Frontier flights from Knoxville to State of Washington

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

Frontier

Apr 23

TYS4:28 pmKnoxville McGhee Tyson

21h 35m

1 stop

PDX11:03 amPortland

May 2

PDX12:27 pmPortland

24h 06m

1 stop

TYS3:33 pmKnoxville McGhee Tyson

$226

Frontier

May 22

TYS8:19 pmKnoxville McGhee Tyson

16h 47m

1 stop

SEA10:06 amSeattle/Tacoma Intl

May 31

SEA3:19 pmSeattle/Tacoma Intl

25h 14m

1 stop

TYS7:33 pmKnoxville McGhee Tyson

$366

Frontier

Jul 24

TYS8:32 pmKnoxville McGhee Tyson

16h 16m

1 stop

SEA9:48 amSeattle/Tacoma Intl

Aug 2

SEA7:41 pmSeattle/Tacoma Intl

20h 56m

1 stop

TYS7:37 pmKnoxville McGhee Tyson

$406

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 5/13

11:26 am-9:49 am

2 stops49h 23m

Seattle/Tacoma Intl

Wed 5/20

7:50 pm-1:59 pm

1 stop15h 09m

$314

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 5/16

1:59 pm-10:22 am

2 stops23h 23m

Seattle/Tacoma Intl

Sat 5/23

7:50 pm-1:59 pm

1 stop15h 09m

$361

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Fri 5/22

8:19 pm-10:06 am

1 stop16h 47m

Seattle/Tacoma Intl

Sun 5/31

3:19 pm-7:33 pm

1 stop25h 14m

$366

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Mon 7/20

8:32 pm-4:57 pm

1 stop23h 25m

Portland

Tue 8/4

5:42 pm-7:37 pm

1 stop22h 55m

$366

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 5/13

6:54 pm-12:44 am

1 stop8h 50m

Seattle/Tacoma Intl

Tue 5/19

12:59 am-12:30 pm

1 stop8h 31m

$375

Quickest round-trip

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 5/12

7:00 am-11:37 am

1 stop7h 37m

Portland

Tue 5/19

7:00 am-6:11 pm

1 stop8h 11m

$375

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 5/14

4:09 pm-10:58 pm

1 stop9h 49m

Seattle/Tacoma Intl

Wed 5/20

7:10 am-6:04 pm

1 stop7h 54m

$384

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Mon 5/11

6:01 pm-11:55 pm

1 stop8h 54m

Portland

Tue 5/19

5:00 am-3:07 pm

1 stop7h 07m

$408

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 9/1

4:00 pm-11:35 pm

2 stops10h 35m

Spokane

Sat 9/12

5:00 pm-9:11 am

2 stops13h 11m

$427

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 9/1

4:00 pm-11:35 pm

2 stops10h 35m

Spokane

Sat 9/12

5:00 pm-9:11 am

2 stops13h 11m

$436

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 $436. If you aren’t able to travel to State of Washington during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $442.

How far in advance should I book a flight to State of 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 $546 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 $436 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	7h 15m
Direct flights	None

The fastest flight from Knoxville to State of Washington takes 7h 15m

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

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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 4 operators available for flights from Knoxville McGhee Tyson Airport to Washington as of April 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 5.7 2,984 reviews	Search Frontier flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,621 reviews	Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.9 8,422 reviews	Search Delta flights
United Airlines	PriceFrom $304	Free Cancellation	Rating 7.4 9,603 reviews	Search United 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.