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Cheap flights from Washington to Knoxville from $138

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 10/3. 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
1 adult, Economy, 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
12:20 pm - 7:24 pm
PDX
-
TYS
28h 04m
1 stop
Frontier Logo
8:19 pm - 4:51 pm
TYS
-
PDX
23h 32m
1 stop
$286Frontier
Thu, Aug 6 - Wed, Aug 12
Frontier Logo
7:06 pm - 7:24 pm
SEA
-
TYS
21h 18m
1 stop
Frontier Logo
8:19 pm - 9:04 am
TYS
-
SEA
15h 45m
1 stop
$319Frontier
Thu, Jul 30 - Fri, Aug 14
Multiple Airlines Logo
5:56 pm - 1:49 pm
PDX
-
TYS
16h 53m
1 stop
Multiple Airlines Logo
7:00 am - 5:11 pm
TYS
-
PDX
13h 11m
1 stop
$339Multiple Airlines
Wed, Aug 19 - Sun, Aug 23
Multiple Airlines Logo
7:00 pm - 6:13 pm
SEA
-
TYS
20h 13m
1 stop
Multiple Airlines Logo
7:00 am - 12:27 am
TYS
-
SEA
20h 27m
1 stop
$347Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
Delta Logo
12:36 pm - 10:39 pm
GEG
-
TYS
7h 03m
1 stop
Delta Logo
6:00 am - 11:21 am
TYS
-
GEG
8h 21m
1 stop
$355Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
6:00 am - 4:42 pm
SEA
-
TYS
7h 42m
1 stop
Delta Logo
6:13 pm - 11:59 pm
TYS
-
SEA
8h 46m
1 stop
$355Delta
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
7:00 am - 4:42 pm
PDX
-
TYS
6h 42m
1 stop
American Airlines Logo
6:00 am - 10:59 am
TYS
-
PDX
7h 59m
1 stop
$355American Airlines
Sat, Sep 12 - Tue, Sep 22
Southwest Logo
6:40 am - 4:30 pm
SEA
-
TYS
6h 50m
1 stop
Southwest Logo
5:30 pm - 11:35 pm
TYS
-
SEA
9h 05m
2 stops
$360Southwest
Wed, Sep 9 - Tue, Sep 15
Southwest Logo
5:50 am - 6:55 pm
PDX
-
TYS
10h 05m
2 stops
Southwest Logo
1:55 pm - 6:25 pm
TYS
-
PDX
7h 30m
1 stop
$360Southwest
Wed, Aug 5 - Sat, Aug 29
American Airlines Logo
10:17 am - 11:18 pm
SEA
-
TYS
10h 01m
1 stop
American Airlines Logo
5:37 pm - 12:15 am
TYS
-
SEA
9h 38m
1 stop
$361American Airlines
Mon, Oct 19 - Mon, Oct 26

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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
Aug 6
PDX12:20 pmPortland
28h 04m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
Aug 12
TYS8:19 pmKnoxville McGhee Tyson
23h 32m
1 stop
PDX4:51 pmPortland
$286
Frontier
Jul 23
SEA7:06 pmSeattle/Tacoma Intl
21h 18m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
Jul 29
TYS8:19 pmKnoxville McGhee Tyson
15h 58m
1 stop
SEA9:17 amSeattle/Tacoma Intl
$312
Frontier
Jul 30
SEA7:06 pmSeattle/Tacoma Intl
21h 18m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
Aug 14
TYS8:19 pmKnoxville McGhee Tyson
15h 45m
1 stop
SEA9:04 amSeattle/Tacoma Intl
$319

American Airlines flights from State of Washington to Knoxville

Our best American Airlines deals on State of Washington to Knoxville flight tickets
American Airlines
Sep 12
PDX7:00 amPortland
6h 42m
1 stop
TYS4:42 pmKnoxville McGhee Tyson
Sep 22
TYS6:00 amKnoxville McGhee Tyson
7h 59m
1 stop
PDX10:59 amPortland
$355
American Airlines
Oct 19
SEA10:17 amSeattle/Tacoma Intl
10h 01m
1 stop
TYS11:18 pmKnoxville McGhee Tyson
Oct 26
TYS5:37 pmKnoxville McGhee Tyson
9h 38m
1 stop
SEA12:15 amSeattle/Tacoma Intl
$361
American Airlines
Oct 17
PDX6:35 amPortland
9h 45m
1 stop
TYS7:20 pmKnoxville McGhee Tyson
Oct 24
TYS5:37 pmKnoxville McGhee Tyson
7h 20m
1 stop
PDX9:57 pmPortland
$364

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 June 27, 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

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Thu 8/6

12:20 pm-7:24 pm

1 stop28h 04m

Knoxville McGhee Tyson

Wed 8/12

8:19 pm-4:51 pm

1 stop23h 32m

$286

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 7/30

7:06 pm-7:24 pm

1 stop21h 18m

Knoxville McGhee Tyson

Fri 8/14

8:19 pm-9:04 am

1 stop15h 45m

$319

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Wed 8/19

5:56 pm-1:49 pm

1 stop16h 53m

Knoxville McGhee Tyson

Sun 8/23

7:00 am-5:11 pm

1 stop13h 11m

$339

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 9/10

7:00 pm-6:13 pm

1 stop20h 13m

Knoxville McGhee Tyson

Sun 9/13

7:00 am-12:27 am

1 stop20h 27m

$347

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Sat 8/22

12:36 pm-10:39 pm

1 stop7h 03m

Knoxville McGhee Tyson

Sat 8/29

6:00 am-11:21 am

1 stop8h 21m

$355

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Wed 9/9

6:00 am-4:42 pm

1 stop7h 42m

Knoxville McGhee Tyson

Tue 9/15

6:13 pm-11:59 pm

1 stop8h 46m

$355
Quickest round-trip

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Sat 9/12

7:00 am-4:42 pm

1 stop6h 42m

Knoxville McGhee Tyson

Tue 9/22

6:00 am-10:59 am

1 stop7h 59m

$355

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Wed 9/9

6:40 am-4:30 pm

1 stop6h 50m

Knoxville McGhee Tyson

Tue 9/15

5:30 pm-11:35 pm

2 stops9h 05m

$360

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Wed 8/5

5:50 am-6:55 pm

2 stops10h 05m

Knoxville McGhee Tyson

Sat 8/29

1:55 pm-6:25 pm

1 stop7h 30m

$360

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Mon 10/19

10:17 am-11:18 pm

1 stop10h 01m

Knoxville McGhee Tyson

Mon 10/26

5:37 pm-12:15 am

1 stop9h 38m

$361

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 February instead. Flights to Knoxville in February, while not as cheap as those in October, still average around $218.

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 $557 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 19% 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

6h 00m

Direct flights

None
The fastest flight from State of Washington to Knoxville takes 6h 00m
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
American AirlinesPriceFrom $270Free CancellationRating
7.1
11,778 reviews
Search American Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,895 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $641Free CancellationRating
7.9
12,581 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
Alcoa
Maryville
Murphy
Crossville
Oak Ridge
Kodak
Newport
Lenoir City
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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