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Cheap flights from Washington to Knoxville from $135

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 1/29. 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.
United Airlines Logo
7:00 am - 6:05 pm
PDX
-
TYS
8h 05m1 stop
United Airlines Logo
4:25 pm - 9:12 pm
TYS
-
PDX
7h 47m1 stop
$367United Airlines
Wed, Jan 7 - Tue, Jan 13
Delta Logo
1:53 pm - 11:09 pm
PDX
-
TYS
6h 16m1 stop
Delta Logo
6:30 am - 12:46 pm
TYS
-
PDX
9h 16m1 stop
$369Delta
Thu, Jan 8 - Tue, Jan 20
United Airlines Logo
7:00 am - 4:53 pm
PDX
-
TYS
6h 53m1 stop
United Airlines Logo
1:59 pm - 10:44 pm
TYS
-
PDX
11h 45m2 stops
$372United Airlines
Wed, Jan 7 - Wed, Jan 14
Delta Logo
1:53 pm - 11:09 pm
PDX
-
TYS
6h 16m1 stop
Delta Logo
7:30 am - 6:50 pm
TYS
-
PDX
14h 20m2 stops
$374Delta
Thu, Jan 8 - Tue, Jan 20
United Airlines Logo
5:00 am - 7:27 pm
PSC
-
TYS
11h 27m2 stops
United Airlines Logo
11:07 am - 9:13 pm
TYS
-
PSC
13h 06m2 stops
$377United Airlines
Tue, Jan 13 - Sat, Jan 17
American Airlines Logo
11:59 pm - 1:54 pm
PDX
-
TYS
10h 55m2 stops
American Airlines Logo
12:15 pm - 8:27 pm
TYS
-
PDX
11h 12m2 stops
$405American Airlines
Thu, Jan 8 - Tue, Jan 20
American Airlines Logo
5:44 am - 3:40 pm
PDX
-
TYS
6h 56m1 stop
American Airlines Logo
12:20 pm - 6:09 pm
TYS
-
PDX
8h 49m1 stop
$410American Airlines
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
2:54 pm - 1:11 pm
SEA
-
TYS
19h 17m1 stop
Multiple Airlines Logo
4:46 pm - 5:51 pm
TYS
-
SEA
28h 05m2 stops
$463Multiple Airlines
Sat, Jan 3 - Mon, Jan 5
Alaska Airlines Logo
5:45 am - 8:56 pm
GEG
-
TYS
12h 11m2 stops
Alaska Airlines Logo
12:21 pm - 9:25 pm
TYS
-
GEG
12h 04m2 stops
$489Alaska Airlines
Sat, Jan 24 - Tue, Jan 27
Multiple Airlines Logo
3:30 pm - 11:01 pm
PSC
-
TYS
28h 31m2 stops
Multiple Airlines Logo
1:40 pm - 8:33 pm
TYS
-
PSC
9h 53m1 stop
$749Multiple Airlines
Thu, Feb 12 - Mon, Feb 16

Southwest flights from State of Washington to Knoxville

Our best Southwest deals on State of Washington to Knoxville flight tickets
Southwest
Mar 25
PDX6:30 amPortland
10h 35m
2 stops
TYS8:05 pmKnoxville McGhee Tyson
Mar 30
TYS3:45 pmKnoxville McGhee Tyson
12h 10m
2 stops
PDX12:55 amPortland
$487
Find similar
Southwest
Mar 25
PDX6:30 amPortland
10h 35m
2 stops
TYS8:05 pmKnoxville McGhee Tyson
Mar 30
TYS3:45 pmKnoxville McGhee Tyson
12h 10m
2 stops
PDX12:55 amPortland
$507
Find similar
Southwest
Apr 18
PDX7:40 pmPortland
13h 00m
2 stops
TYS11:40 amKnoxville McGhee Tyson
Apr 21
TYS2:55 pmKnoxville McGhee Tyson
11h 05m
2 stops
PDX11:00 pmPortland
$513
Find similar

American Airlines flights from State of Washington to Knoxville

Our best American Airlines deals on State of Washington to Knoxville flight tickets
American Airlines
Jan 15
PDX12:35 pmPortland
7h 12m
1 stop
TYS10:47 pmKnoxville McGhee Tyson
Jan 21
TYS4:41 pmKnoxville McGhee Tyson
8h 36m
1 stop
PDX10:17 pmPortland
$399
Find similar
American Airlines
Jan 15
PDX12:35 pmPortland
7h 12m
1 stop
TYS10:47 pmKnoxville McGhee Tyson
Jan 21
TYS12:17 pmKnoxville McGhee Tyson
10h 34m
2 stops
PDX7:51 pmPortland
$404
Find similar
American Airlines
Jan 8
PDX11:59 pmPortland
10h 55m
2 stops
TYS1:54 pmKnoxville McGhee Tyson
Jan 20
TYS12:15 pmKnoxville McGhee Tyson
11h 12m
2 stops
PDX8:27 pmPortland
$405
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 December 11, 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

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Wed 1/7

7:00 am-6:05 pm

1 stop8h 05m

Knoxville McGhee Tyson

Tue 1/13

4:25 pm-9:12 pm

1 stop7h 47m

$367

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Thu 1/8

1:53 pm-11:09 pm

1 stop6h 16m

Knoxville McGhee Tyson

Tue 1/20

6:30 am-12:46 pm

1 stop9h 16m

$369

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Wed 1/7

7:00 am-4:53 pm

1 stop6h 53m

Knoxville McGhee Tyson

Wed 1/14

1:59 pm-10:44 pm

2 stops11h 45m

$372

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Thu 1/8

1:53 pm-11:09 pm

1 stop6h 16m

Knoxville McGhee Tyson

Tue 1/20

7:30 am-6:50 pm

2 stops14h 20m

$374

PascoKnoxville

PSC - TYS

PSCTYS

Pasco Tri Cities

Tue 1/13

5:00 am-7:27 pm

2 stops11h 27m

Knoxville McGhee Tyson

Sat 1/17

11:07 am-9:13 pm

2 stops13h 06m

$377

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Thu 1/8

11:59 pm-1:54 pm

2 stops10h 55m

Knoxville McGhee Tyson

Tue 1/20

12:15 pm-8:27 pm

2 stops11h 12m

$405

PortlandKnoxville

PDX - TYS

PDXTYS

Portland

Wed 2/25

5:44 am-3:40 pm

1 stop6h 56m

Knoxville McGhee Tyson

Sun 3/1

12:20 pm-6:09 pm

1 stop8h 49m

$410

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Sat 1/3

2:54 pm-1:11 pm

1 stop19h 17m

Knoxville McGhee Tyson

Mon 1/5

4:46 pm-5:51 pm

2 stops28h 05m

$463

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Sat 1/24

5:45 am-8:56 pm

2 stops12h 11m

Knoxville McGhee Tyson

Tue 1/27

12:21 pm-9:25 pm

2 stops12h 04m

$489

PascoKnoxville

PSC - TYS

PSCTYS

Pasco Tri Cities

Thu 2/12

3:30 pm-11:01 pm

2 stops28h 31m

Knoxville McGhee Tyson

Mon 2/16

1:40 pm-8:33 pm

1 stop9h 53m

$749

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 $462. 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 $581 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 $395 on momondo.

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

You could potentially save up to 56% 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 03m

Direct flights

None
The fastest flight from State of Washington to Knoxville takes 6h 03m
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
3,084 reviews
Search Frontier flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $483Free CancellationRating
8.0
11,429 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
Maryville
Crossville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Jefferson City
Clinton
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.

An easier way to manage your Knoxville trip

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