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Cheap flights from Knoxville to Seattle from $94

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Seattle departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Knoxville to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Knoxville to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Knoxville to Seattle.

Cheap last minute flights

Planning a quick getaway from Knoxville to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Knoxville to Seattle

Find recent round-trip train or bus tickets from Knoxville to Seattle.

All round-trip flight deals from Knoxville to Seattle

The cheapest plane tickets from Knoxville to Seattle found on KAYAK recently.
5:08 pm - 12:43 amTYS-SEA
10h 35m1 stop
6:00 am - 4:08 pmSEA-TYS
7h 08m1 stop
$170Frontier
Find Deal
Thu, May 15 - Sun, May 18
5:08 pm - 12:43 amTYS-SEA
10h 35m1 stop
6:00 am - 4:08 pmSEA-TYS
7h 08m1 stop
$266Frontier
Find Deal
Sun, May 11 - Sun, May 18
3:09 pm - 11:05 pmTYS-SEA
10h 56m1 stop
11:55 pm - 2:21 pmSEA-TYS
11h 26m1 stop
$392American Airlines
Find Deal
Fri, May 2 - Sat, May 10
11:10 am - 11:07 pmTYS-SEA
14h 57m1 stop
12:59 am - 11:39 amSEA-TYS
7h 40m1 stop
$443American Airlines
Find Deal
Wed, Mar 19 - Tue, Mar 25
7:00 am - 10:45 pmTYS-SEA
18h 45m2 stops
5:02 am - 10:30 pmSEA-TYS
14h 28m1 stop
$460United Airlines
Find Deal
Wed, Feb 19 - Wed, Feb 26
9:15 am - 11:01 pmTYS-SEA
16h 46m2 stops
5:15 am - 10:45 pmSEA-TYS
14h 30m2 stops
$466United Airlines
Find Deal
Wed, Mar 19 - Wed, Mar 26
5:45 am - 6:23 pmTYS-SEA
15h 38m2 stops
7:25 am - 11:47 pmSEA-TYS
13h 22m2 stops
$489Delta
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Thu, Feb 6 - Wed, Feb 12
5:45 am - 7:30 pmTYS-SEA
16h 45m2 stops
6:15 am - 4:34 pmSEA-TYS
7h 19m1 stop
$495Delta
Find Deal
Thu, Feb 6 - Wed, Feb 12
2:30 pm - 10:00 pmTYS-SEA
10h 30m1 stop
9:45 pm - 10:33 amSEA-TYS
9h 48m1 stop
$759Alaska Airlines
Find Deal
Sun, May 11 - Mon, May 19
12:34 pm - 8:22 pmTYS-SEA
10h 48m1 stop
7:00 pm - 10:54 amSEA-TYS
12h 54m2 stops
$804Alaska Airlines
Find Deal
Wed, May 28 - Sat, Jun 7
4:19 pm - 2:25 pmTYS-SEA
25h 06m1 stop
$94Frontier
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Thu, Feb 6
4:23 pm - 12:02 pmTYS-SEA
22h 39m1 stop
$206Frontier
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Thu, Mar 6
9:24 pm - 12:25 amTYS-SEA
30h 01m3 stops
Thu, Feb 20
8:30 am - 12:19 amTYS-SEA
18h 49m2 stops
Thu, Feb 6
7:00 am - 6:45 pmTYS-SEA
14h 45m1 stop
$249United Airlines
Find Deal
Tue, Mar 4
1:41 pm - 12:19 amTYS-SEA
37h 38m3 stops
Thu, Feb 6
9:35 am - 10:53 pmTYS-SEA
16h 18m2 stops
$255United Airlines
Find Deal
Wed, Feb 12
9:24 pm - 12:25 amTYS-SEA
30h 01m2 stops
Thu, Feb 20
9:55 am - 10:42 pmTYS-SEA
15h 47m2 stops
$275United Airlines
Find Deal
Wed, Mar 5
11:10 am - 11:07 pmTYS-SEA
14h 57m1 stop
$298American Airlines
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Sat, Mar 29
10:00 am - 5:00 pmTYS-SEA
34h 00m3 stops
7:10 am - 2:00 pmSEA-TYS
27h 50m3 stops
Sun, Jan 19 - Thu, Jan 23
10:00 am - 5:00 pmTYS-SEA
34h 00m3 stops
9:45 am - 4:14 pmSEA-TYS
27h 29m3 stops
$1,054
Find Deal
Sun, Jan 19 - Tue, Jan 21
5:45 am - 12:31 pmTYS-SEA
9h 46m1 stop
12:00 pm - 11:08 pmSEA-TYS
8h 08m1 stop
$1,217Delta
Find Deal
Sun, Jan 19 - Thu, Jan 23
4:25 pm - 9:11 pmTYS-SEA
7h 46m1 stop
7:00 am - 11:46 pmSEA-TYS
13h 46m2 stops
$1,222United Airlines
Find Deal
Sun, Jan 19 - Thu, Jan 23
4:25 pm - 9:11 pmTYS-SEA
7h 46m1 stop
9:00 am - 3:12 pmSEA-TYS
27h 12m1 stop
$1,245United Airlines
Find Deal
Sun, Jan 19 - Tue, Jan 21
12:04 pm - 8:00 pmTYS-SEA
10h 56m2 stops
12:45 am - 11:26 amSEA-TYS
7h 41m1 stop
$1,303American Airlines
Find Deal
Sun, Jan 19 - Wed, Jan 22
6:45 am - 7:08 pmTYS-SEA
15h 23m2 stops
5:00 am - 3:12 pmSEA-TYS
7h 12m1 stop
$1,312United Airlines
Find Deal
Sun, Jan 19 - Tue, Jan 21
8:30 am - 10:30 pmTYS-SEA
17h 00m2 stops
5:00 am - 10:41 pmSEA-TYS
14h 41m2 stops
$1,984United Airlines
Find Deal
Sun, Jan 19 - Thu, Jan 23
8:30 am - 10:30 pmTYS-SEA
17h 00m2 stops
5:00 am - 4:59 pmSEA-TYS
8h 59m2 stops
$2,095United Airlines
Find Deal
Sun, Jan 19 - Tue, Jan 21

American Airlines flights from Knoxville to Seattle

Our best American Airlines deals on Knoxville to Seattle flight tickets
American Airlines
May 2
TYS3:09 pmKnoxville McGhee Tyson
10h 56m
1 stop
SEA11:05 pmSeattle/Tacoma Intl
May 10
SEA11:55 pmSeattle/Tacoma Intl
11h 26m
1 stop
TYS2:21 pmKnoxville McGhee Tyson
American Airlines
Mar 19
TYS11:10 amKnoxville McGhee Tyson
14h 57m
1 stop
SEA11:07 pmSeattle/Tacoma Intl
Mar 25
SEA12:59 amSeattle/Tacoma Intl
7h 40m
1 stop
TYS11:39 amKnoxville McGhee Tyson
American Airlines
Apr 30
TYS3:09 pmKnoxville McGhee Tyson
10h 56m
1 stop
SEA11:05 pmSeattle/Tacoma Intl
May 20
SEA1:29 amSeattle/Tacoma Intl
7h 02m
1 stop
TYS11:31 amKnoxville McGhee Tyson

United Airlines flights from Knoxville to Seattle

Our best United Airlines deals on Knoxville to Seattle flight tickets
United Airlines
Feb 19
TYS7:00 amKnoxville McGhee Tyson
18h 45m
2 stops
SEA10:45 pmSeattle/Tacoma Intl
Feb 26
SEA5:02 amSeattle/Tacoma Intl
14h 28m
1 stop
TYS10:30 pmKnoxville McGhee Tyson
United Airlines
Mar 19
TYS9:15 amKnoxville McGhee Tyson
16h 46m
2 stops
SEA11:01 pmSeattle/Tacoma Intl
Mar 26
SEA5:15 amSeattle/Tacoma Intl
14h 30m
2 stops
TYS10:45 pmKnoxville McGhee Tyson
United Airlines
Feb 19
TYS7:00 amKnoxville McGhee Tyson
18h 42m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
Feb 26
SEA5:02 amSeattle/Tacoma Intl
14h 28m
1 stop
TYS10:30 pmKnoxville McGhee Tyson

See travel insights to Seattle from

How to get the cheapest flight ticket from Knoxville to Seattle

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 Seattle?

In general, October is the cheapest month to fly from Knoxville to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $601. If you don’t want to visit Seattle in October, then you should wait until September to fly from Knoxville, when ticket prices are also cheap, with an average price of $618.

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

On average, the least expensive day to fly to Seattle from Knoxville is on a Friday. momondo users have found tickets for Friday departures for as low as $596. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Knoxville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $746.

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

Flying to Seattle from Knoxville in the evening is the least expensive time of day to depart. momondo users have found prices as low as $327 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $697. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Knoxville when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $690 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Knoxville for as low as $541 on momondo.

How have Knoxville to Seattle flight prices changed over time?

As of January 2025, prices for Knoxville to Seattle flights are approximately 146% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Seattle (TYS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Seattle

Best Price Found

$94

Fastest flight time

7h 18m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Knoxville in the past 72 hours is $94. The best round-trip flight deal from Knoxville to Seattle found on momondo in the last 72 hours is $170.
The fastest flight from Knoxville to Seattle takes 7h 18m
There are no direct flights from Knoxville to Seattle. Popular non-direct route for this connection is Knoxville McGhee Tyson Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Knoxville McGhee Tyson to Seattle/Tacoma Intl by plane?

    The distance between Knoxville McGhee Tyson and Seattle/Tacoma Intl is about 2108.9 mi. Flights usually cover this in 7h 18m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Seattle/Tacoma Intl Airport?

    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 Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Knoxville to Seattle?


Best airlines flying from Knoxville to Seattle

Compare and see reviews for airlines that fly from Knoxville to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $120Free CancellationRating
6.0
3,435 reviews
Search Frontier flights
American AirlinesPriceFrom $384Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $409Free CancellationRating
8.0
9,681 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $515Free CancellationRating
7.4
8,964 reviews
Search United Airlines flights
DeltaPriceFrom $548Free CancellationRating
8.0
8,511 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Tukwila
Federal Way
Lynnwood
Kirkland
Lakewood
Redmond
Puyallup
Fife
Shoreline
Centralia
Bothell
Cle Elum
Lacey

Why use momondo?

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

Finding the right flight to Seattle from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

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

Yes. All flights to Seattle from Knoxville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Seattle 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 Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Knoxville to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.


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