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Cheap flights from Washington to Knoxville from $142

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 1/9. 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.
Multiple Airlines Logo
11:01 am - 5:02 pmSEA-TYS
27h 01m1 stop
Multiple Airlines Logo
6:30 am - 11:53 amTYS-SEA
8h 23m1 stop
$225Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
7:23 pm - 4:50 pmSEA-TYS
18h 27m1 stop
Multiple Airlines Logo
7:35 am - 8:00 pmTYS-SEA
15h 25m1 stop
$240Multiple Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
7:23 pm - 10:28 pmSEA-TYS
24h 05m2 stops
Multiple Airlines Logo
7:35 am - 8:00 pmTYS-SEA
15h 25m1 stop
$256Multiple Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
1:09 pm - 7:14 pmSEA-TYS
27h 05m2 stops
Multiple Airlines Logo
6:30 am - 11:53 amTYS-SEA
8h 23m1 stop
$260Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Delta Logo
6:00 am - 8:47 pmPSC-TYS
11h 47m2 stops
Delta Logo
1:30 pm - 11:08 pmTYS-PSC
12h 38m2 stops
$299Delta
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Tue, Feb 24 - Sat, Feb 28
Delta Logo
5:05 am - 8:47 pmPSC-TYS
12h 42m2 stops
Delta Logo
1:30 pm - 11:08 pmTYS-PSC
12h 38m2 stops
$313Delta
Find Deal
Tue, Feb 24 - Sat, Feb 28
American Airlines Logo
3:02 pm - 10:50 amPDX-TYS
16h 48m1 stop
American Airlines Logo
7:54 am - 8:22 pmTYS-PDX
15h 28m1 stop
$405American Airlines
Find Deal
Wed, Dec 31 - Thu, Jan 8
American Airlines Logo
6:00 am - 10:09 pmPDX-TYS
13h 09m1 stop
American Airlines Logo
7:54 am - 8:22 pmTYS-PDX
15h 28m1 stop
$415American Airlines
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Thu, Jan 29 - Sun, Feb 1
United Airlines Logo
5:00 am - 8:52 pmGEG-TYS
12h 52m2 stops
United Airlines Logo
6:45 am - 3:21 pmTYS-GEG
11h 36m2 stops
$536United Airlines
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Fri, Feb 6 - Mon, Feb 9
United Airlines Logo
5:00 am - 3:05 pmPSC-TYS
7h 05m1 stop
United Airlines Logo
8:45 am - 1:43 pmTYS-PSC
7h 58m1 stop
$678United Airlines
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Tue, Feb 24 - Sat, Feb 28

Delta flights from State of Washington to Knoxville

Our best Delta deals on State of Washington to Knoxville flight tickets
Delta
Feb 24
PSC6:00 amPasco Tri Cities
11h 47m
2 stops
TYS8:47 pmKnoxville McGhee Tyson
Feb 28
TYS1:30 pmKnoxville McGhee Tyson
12h 38m
2 stops
PSC11:08 pmPasco Tri Cities
$299
Find similar
Delta
Feb 24
PSC5:05 amPasco Tri Cities
12h 42m
2 stops
TYS8:47 pmKnoxville McGhee Tyson
Feb 28
TYS1:30 pmKnoxville McGhee Tyson
12h 38m
2 stops
PSC11:08 pmPasco Tri Cities
$313
Find similar
Delta
Dec 9
PDX11:20 pmPortland
9h 27m
1 stop
TYS11:47 amKnoxville McGhee Tyson
Dec 13
TYS5:36 pmKnoxville McGhee Tyson
7h 43m
1 stop
PDX10:19 pmPortland
$367
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Frontier flights from State of Washington to Knoxville

Our best Frontier deals on State of Washington to Knoxville flight tickets
Frontier
Dec 29
SEA6:33 pmSeattle/Tacoma Intl
18h 18m
2 stops
TYS3:51 pmKnoxville McGhee Tyson
Jan 4
TYS4:26 pmKnoxville McGhee Tyson
23h 04m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
$356
Find similar
Frontier
Dec 28
SEA1:25 pmSeattle/Tacoma Intl
23h 26m
2 stops
TYS3:51 pmKnoxville McGhee Tyson
Jan 4
TYS4:26 pmKnoxville McGhee Tyson
23h 04m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
$385
Find similar
Frontier
Nov 21
SEA1:01 pmSeattle/Tacoma Intl
27h 09m
1 stop
TYS7:10 pmKnoxville McGhee Tyson
Nov 25
TYS4:48 pmKnoxville McGhee Tyson
22h 08m
1 stop
SEA11:56 amSeattle/Tacoma Intl
$386
Find similar

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 November 17, 2025.
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

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 12/4

11:01 am-5:02 pm

1 stop27h 01m

Knoxville McGhee Tyson

Sun 12/7

6:30 am-11:53 am

1 stop8h 23m

$225

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 1/8

7:23 pm-4:50 pm

1 stop18h 27m

Knoxville McGhee Tyson

Mon 1/12

7:35 am-8:00 pm

1 stop15h 25m

$240

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 1/8

7:23 pm-10:28 pm

2 stops24h 05m

Knoxville McGhee Tyson

Mon 1/12

7:35 am-8:00 pm

1 stop15h 25m

$256

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 12/4

1:09 pm-7:14 pm

2 stops27h 05m

Knoxville McGhee Tyson

Sun 12/7

6:30 am-11:53 am

1 stop8h 23m

$260

PascoKnoxville

PSC - TYS

PSCTYS

Pasco Tri Cities

Tue 2/24

6:00 am-8:47 pm

2 stops11h 47m

Knoxville McGhee Tyson

Sat 2/28

1:30 pm-11:08 pm

2 stops12h 38m

$299

PascoKnoxville

PSC - TYS

PSCTYS

Pasco Tri Cities

Tue 2/24

5:05 am-8:47 pm

2 stops12h 42m

Knoxville McGhee Tyson

Sat 2/28

1:30 pm-11:08 pm

2 stops12h 38m

$313

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Wed 12/31

3:02 pm-10:50 am

1 stop16h 48m

Knoxville McGhee Tyson

Thu 1/8

7:54 am-8:22 pm

1 stop15h 28m

$405

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Thu 1/29

6:00 am-10:09 pm

1 stop13h 09m

Knoxville McGhee Tyson

Sun 2/1

7:54 am-8:22 pm

1 stop15h 28m

$415

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Fri 2/6

5:00 am-8:52 pm

2 stops12h 52m

Knoxville McGhee Tyson

Mon 2/9

6:45 am-3:21 pm

2 stops11h 36m

$536

PascoKnoxville

PSC - TYS

PSCTYS

Pasco Tri Cities

Tue 2/24

5:00 am-3:05 pm

1 stop7h 05m

Knoxville McGhee Tyson

Sat 2/28

8:45 am-1:43 pm

1 stop7h 58m

$678

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 August is, on average, the cheapest month to fly to Knoxville from State of Washington, with most prices found around $460. If you aren’t able to travel during the month of August, then book flights to Knoxville from State of Washington during September instead. Flights to Knoxville in September, while not as cheap as those in August, still average around $506.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from State of Washington to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $596. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Knoxville for around $758.

What is the cheapest time of day to depart on your flight to Knoxville?

In the afternoon is the cheapest time of day to fly from State of Washington to Knoxville when you can find flight prices for as low as $189. Flying to Knoxville in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $656.

How far in advance should I book a flight 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 $595 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 $447 on momondo.

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

You could potentially save up to 31% 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

Direct flights

None
There are no direct flights from State of Washington to Knoxville. There are no popular flight routes from State of Washington to Knoxville.
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  • 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 $144Free CancellationRating
7.9
8,008 reviews
Search Delta flights
FrontierPriceFrom $190Free CancellationRating
5.8
3,103 reviews
Search Frontier flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $483Free CancellationRating
8.0
11,314 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
Corbin
Crossville
Maryville
Murphy
Alcoa
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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