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 54% 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, United Airlines, 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 March 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.

$112 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.

4:28 pm - 9:27 am

TYS

SEA

19h 59m

1 stop

9:35 pm - 10:51 pm

SEA

TYS

22h 16m

1 stop

$213Multiple Airlines

Thu, May 7 - Sun, May 10

4:28 pm - 9:52 am

TYS

SEA

20h 24m

1 stop

7:12 pm - 3:33 pm

SEA

TYS

17h 21m

1 stop

$221Frontier

Thu, Apr 16 - Sat, Apr 25

4:30 pm - 9:11 pm

TYS

GEG

7h 41m

1 stop

5:05 am - 3:06 pm

GEG

TYS

7h 01m

1 stop

$359United Airlines

Tue, Mar 31 - Tue, Apr 7

7:00 am - 11:46 am

TYS

PDX

7h 46m

1 stop

7:00 am - 6:15 pm

PDX

TYS

8h 15m

1 stop

$359United Airlines

Tue, Apr 14 - Tue, Apr 21

5:40 am - 11:07 am

TYS

PDX

8h 27m

1 stop

11:40 pm - 10:26 am

PDX

TYS

7h 46m

1 stop

$379American Airlines

Wed, Apr 1 - Wed, Apr 8

2:55 pm - 10:55 pm

TYS

GEG

11h 00m

2 stops

5:10 am - 7:40 pm

GEG

TYS

11h 30m

2 stops

$379Southwest

Tue, Apr 14 - Tue, Apr 28

4:09 pm - 9:38 pm

TYS

PDX

8h 29m

1 stop

12:59 am - 12:30 pm

PDX

TYS

8h 31m

1 stop

$383American Airlines

Tue, May 5 - Fri, May 8

2:55 pm - 9:35 pm

TYS

GEG

9h 40m

2 stops

5:10 am - 7:40 pm

GEG

TYS

11h 30m

2 stops

$389Southwest

Wed, May 6 - Tue, May 12

3:20 pm - 11:44 pm

TYS

GEG

11h 24m

2 stops

7:07 pm - 9:11 am

GEG

TYS

11h 04m

2 stops

$419Delta

Wed, Jun 24 - Tue, Jun 30

5:40 am - 11:41 am

TYS

PSC

9h 01m

2 stops

5:35 pm - 9:16 am

PSC

TYS

12h 41m

2 stops

$589Delta

Thu, Mar 19 - Mon, Mar 23

Frontier flights from Knoxville to State of Washington

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

Frontier

Apr 16

TYS4:28 pmKnoxville McGhee Tyson

20h 24m

1 stop

SEA9:52 amSeattle/Tacoma Intl

Apr 25

SEA7:12 pmSeattle/Tacoma Intl

17h 21m

1 stop

TYS3:33 pmKnoxville McGhee Tyson

$221

Frontier

Apr 16

TYS4:28 pmKnoxville McGhee Tyson

20h 24m

1 stop

SEA9:52 amSeattle/Tacoma Intl

Apr 25

SEA7:12 pmSeattle/Tacoma Intl

17h 21m

1 stop

TYS3:33 pmKnoxville McGhee Tyson

$232

Frontier

Jun 5

TYS8:08 pmKnoxville McGhee Tyson

17h 02m

1 stop

SEA10:10 amSeattle/Tacoma Intl

Jun 7

SEA9:14 pmSeattle/Tacoma Intl

18h 59m

1 stop

TYS7:13 pmKnoxville McGhee Tyson

$253

Southwest flights from Knoxville to State of Washington

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

Southwest

Apr 14

TYS2:55 pmKnoxville McGhee Tyson

11h 00m

2 stops

GEG10:55 pmSpokane

Apr 28

GEG5:10 amSpokane

11h 30m

2 stops

TYS7:40 pmKnoxville McGhee Tyson

$379

Southwest

May 6

TYS2:55 pmKnoxville McGhee Tyson

9h 40m

2 stops

GEG9:35 pmSpokane

May 12

GEG5:10 amSpokane

11h 30m

2 stops

TYS7:40 pmKnoxville McGhee Tyson

$389

Southwest

Apr 30

TYS2:45 pmKnoxville McGhee Tyson

12h 45m

2 stops

GEG12:30 amSpokane

May 4

GEG5:35 pmSpokane

15h 25m

2 stops

TYS12:00 pmKnoxville McGhee Tyson

$401

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 5/7

4:28 pm-9:27 am

1 stop19h 59m

Seattle/Tacoma Intl

Sun 5/10

9:35 pm-10:51 pm

1 stop22h 16m

$213

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 4/16

4:28 pm-9:52 am

1 stop20h 24m

Seattle/Tacoma Intl

Sat 4/25

7:12 pm-3:33 pm

1 stop17h 21m

$221

Quickest round-trip

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 3/31

4:30 pm-9:11 pm

1 stop7h 41m

Spokane

Tue 4/7

5:05 am-3:06 pm

1 stop7h 01m

$359

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 4/14

7:00 am-11:46 am

1 stop7h 46m

Portland

Tue 4/21

7:00 am-6:15 pm

1 stop8h 15m

$359

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Wed 4/1

5:40 am-11:07 am

1 stop8h 27m

Portland

Wed 4/8

11:40 pm-10:26 am

1 stop7h 46m

$379

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 4/14

2:55 pm-10:55 pm

2 stops11h 00m

Spokane

Tue 4/28

5:10 am-7:40 pm

2 stops11h 30m

$379

KnoxvillePortland

TYS - PDX

TYSPDX

Knoxville McGhee Tyson

Tue 5/5

4:09 pm-9:38 pm

1 stop8h 29m

Portland

Fri 5/8

12:59 am-12:30 pm

1 stop8h 31m

$383

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 5/6

2:55 pm-9:35 pm

2 stops9h 40m

Spokane

Tue 5/12

5:10 am-7:40 pm

2 stops11h 30m

$389

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 6/24

3:20 pm-11:44 pm

2 stops11h 24m

Spokane

Tue 6/30

7:07 pm-9:11 am

2 stops11h 04m

$419

KnoxvillePasco

TYS - PSC

TYSPSC

Knoxville McGhee Tyson

Thu 3/19

5:40 am-11:41 am

2 stops9h 01m

Pasco Tri Cities

Mon 3/23

5:35 pm-9:16 am

2 stops12h 41m

$589

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 $396. 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 $544 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 $405 on momondo.

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

You could potentially save up to 48% 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 54m
Direct flights	None

The fastest flight from Knoxville to State of Washington takes 6h 54m

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

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 March 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 3,035 reviews	Search Frontier flights
Delta	PriceFrom $269	Free Cancellation	Rating 7.9 8,269 reviews	Search Delta flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,397 reviews	Search American Airlines flights
United Airlines	PriceFrom $304	Free Cancellation	Rating 7.4 9,405 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.