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Cheap flights from Washington to Knoxville from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Knoxville departing on 7/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Washington to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:41 pm - 7:37 pm
SEA
-
TYS
20h 56m
1 stop
Frontier Logo
8:32 pm - 9:48 am
TYS
-
SEA
16h 16m
1 stop
$251Frontier
Thu, Jun 11 - Fri, Jun 19
Frontier Logo
7:41 pm - 7:37 pm
SEA
-
TYS
20h 56m
1 stop
Frontier Logo
8:32 pm - 9:48 am
TYS
-
SEA
16h 16m
1 stop
$262Frontier
Thu, Jun 11 - Fri, Jun 19
Frontier Logo
12:35 pm - 7:24 pm
PDX
-
TYS
27h 49m
1 stop
Frontier Logo
8:32 pm - 4:35 pm
TYS
-
PDX
23h 03m
1 stop
$281Frontier
Thu, May 28 - Mon, Jun 8
Multiple Airlines Logo
7:50 pm - 1:59 pm
SEA
-
TYS
15h 09m
1 stop
Multiple Airlines Logo
1:22 pm - 6:35 pm
TYS
-
SEA
32h 13m
2 stops
$286Multiple Airlines
Sat, May 23 - Thu, May 28
Multiple Airlines Logo
7:50 pm - 7:33 pm
SEA
-
TYS
20h 43m
1 stop
Multiple Airlines Logo
7:00 am - 2:01 pm
TYS
-
SEA
10h 01m
1 stop
$335Multiple Airlines
Thu, Jun 4 - Sun, Jun 7
Allegiant Air Logo
9:14 pm - 1:57 pm
GEG
-
TYS
13h 43m
1 stop
Allegiant Air Logo
2:51 pm - 11:02 am
TYS
-
GEG
23h 11m
1 stop
$344Allegiant Air
Thu, Aug 13 - Sun, Aug 16
American Airlines Logo
11:43 pm - 11:13 am
PDX
-
TYS
8h 30m
1 stop
American Airlines Logo
6:07 pm - 11:59 pm
TYS
-
PDX
8h 52m
1 stop
$375American Airlines
Tue, Jun 9 - Tue, Jun 23
American Airlines Logo
3:47 pm - 8:25 am
PSC
-
TYS
13h 38m
2 stops
American Airlines Logo
3:05 pm - 11:07 pm
TYS
-
PSC
11h 02m
2 stops
$387American Airlines
Wed, Sep 9 - Sat, Sep 12
Delta Logo
2:23 pm - 11:01 pm
GEG
-
TYS
5h 38m
1 stop
Delta Logo
6:36 pm - 11:06 pm
TYS
-
GEG
7h 30m
1 stop
$395Delta
Tue, Jun 23 - Wed, Jul 8
Delta Logo
2:23 pm - 11:01 pm
GEG
-
TYS
5h 38m
1 stop
Delta Logo
11:55 am - 11:06 pm
TYS
-
GEG
14h 11m
2 stops
$400Delta
Tue, Jun 23 - Wed, Jul 8

Frontier flights from State of Washington to Knoxville

Our best Frontier deals on State of Washington to Knoxville flight tickets
Frontier
Jun 11
SEA7:41 pmSeattle/Tacoma Intl
20h 56m
1 stop
TYS7:37 pmKnoxville McGhee Tyson
Jun 19
TYS8:32 pmKnoxville McGhee Tyson
16h 16m
1 stop
SEA9:48 amSeattle/Tacoma Intl
$251
Frontier
Jun 11
SEA7:41 pmSeattle/Tacoma Intl
20h 56m
1 stop
TYS7:37 pmKnoxville McGhee Tyson
Jun 19
TYS8:32 pmKnoxville McGhee Tyson
16h 16m
1 stop
SEA9:48 amSeattle/Tacoma Intl
$262
Frontier
May 28
PDX12:35 pmPortland
27h 49m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
Jun 8
TYS8:32 pmKnoxville McGhee Tyson
23h 03m
1 stop
PDX4:35 pmPortland
$281

Delta flights from State of Washington to Knoxville

Our best Delta deals on State of Washington to Knoxville flight tickets
Delta
Jun 23
GEG2:23 pmSpokane
5h 38m
1 stop
TYS11:01 pmKnoxville McGhee Tyson
Jul 8
TYS6:36 pmKnoxville McGhee Tyson
7h 30m
1 stop
GEG11:06 pmSpokane
$395
Delta
Jun 23
GEG2:23 pmSpokane
5h 38m
1 stop
TYS11:01 pmKnoxville McGhee Tyson
Jul 8
TYS11:55 amKnoxville McGhee Tyson
14h 11m
2 stops
GEG11:06 pmSpokane
$400
Delta
May 28
GEG2:16 pmSpokane
5h 41m
1 stop
TYS10:57 pmKnoxville McGhee Tyson
Jun 2
TYS3:30 pmKnoxville McGhee Tyson
10h 36m
2 stops
GEG11:06 pmSpokane
$417

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Knoxville 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, momondo users made 832,500 searches. Data last updated May 9, 2026.
Use the filters below to find and compare flights from Washington to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 6/11

7:41 pm-7:37 pm

1 stop20h 56m

Knoxville McGhee Tyson

Fri 6/19

8:32 pm-9:48 am

1 stop16h 16m

$251

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 6/11

7:41 pm-7:37 pm

1 stop20h 56m

Knoxville McGhee Tyson

Fri 6/19

8:32 pm-9:48 am

1 stop16h 16m

$262

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Thu 5/28

12:35 pm-7:24 pm

1 stop27h 49m

Knoxville McGhee Tyson

Mon 6/8

8:32 pm-4:35 pm

1 stop23h 03m

$281

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Sat 5/23

7:50 pm-1:59 pm

1 stop15h 09m

Knoxville McGhee Tyson

Thu 5/28

1:22 pm-6:35 pm

2 stops32h 13m

$286

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 6/4

7:50 pm-7:33 pm

1 stop20h 43m

Knoxville McGhee Tyson

Sun 6/7

7:00 am-2:01 pm

1 stop10h 01m

$335

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Thu 8/13

9:14 pm-1:57 pm

1 stop13h 43m

Knoxville McGhee Tyson

Sun 8/16

2:51 pm-11:02 am

1 stop23h 11m

$344

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Tue 6/9

11:43 pm-11:13 am

1 stop8h 30m

Knoxville McGhee Tyson

Tue 6/23

6:07 pm-11:59 pm

1 stop8h 52m

$375

PascoKnoxville

PSC - TYS

PSCTYS

Pasco Tri Cities

Wed 9/9

3:47 pm-8:25 am

2 stops13h 38m

Knoxville McGhee Tyson

Sat 9/12

3:05 pm-11:07 pm

2 stops11h 02m

$387
Quickest round-trip

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 6/23

2:23 pm-11:01 pm

1 stop5h 38m

Knoxville McGhee Tyson

Wed 7/8

6:36 pm-11:06 pm

1 stop7h 30m

$395

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 6/23

2:23 pm-11:01 pm

1 stop5h 38m

Knoxville McGhee Tyson

Wed 7/8

11:55 am-11:06 pm

2 stops14h 11m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Knoxville from

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

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

What is the cheapest month to fly to Knoxville?

The month of October is, on average, the cheapest month to fly to Knoxville from State of Washington, with most prices found around $128. If you aren’t able to travel during the month of October, then book flights to Knoxville from State of Washington during August instead. Flights to Knoxville in August, while not as cheap as those in October, still average around $206.

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

You are more likely to see cheaper flights to Knoxville from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $553 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from State of Washington for as low as $308 on momondo.

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

You could potentially save up to 20% on your flight if you consider stops on a State of Washington to Knoxville flight.

Cheap State of Washington to Knoxville flight deals and tips

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

Fastest flight time

5h 51m

Direct flights

None
The fastest flight from State of Washington to Knoxville takes 5h 51m
There are no direct flights from State of Washington to Knoxville. There are no popular flight routes from State of Washington to Knoxville.
Search flight deals

Frequently asked questions about flying from Washington to Knoxville

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport 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 Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Knoxville

Compare and see reviews for airlines that fly from State of Washington to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $288Free CancellationRating
7.9
8,457 reviews
Search Delta flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,695 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $483Free CancellationRating
7.9
12,349 reviews
Search Alaska Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Alcoa
Corbin
Crossville
Maryville
Murphy
Oak Ridge
Newport
Lenoir City
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Knoxville from Washington.

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

momondo does allow users to show only those flights to Knoxville from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington to Knoxville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Knoxville from Washington 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.

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