What’s the cheapest layover airport for flights from Knoxville to Seattle?

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $559.

Which airport typically offers the quickest layover for flights from Knoxville to Seattle?

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 15m.

What’s the top layover airport for flights from Knoxville to Seattle?

Chicago (ORD) – chosen by Cheapflights users on 67% of 1-stop itineraries from Knoxville to Seattle on Cheapflights.

What’s the fastest layover option from Knoxville to Seattle?

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 51m.

How long is the flight from Knoxville to Seattle?

A quick flight from Knoxville to Seattle can take about 10h 48m. American Airlines provides one of the quickest options available for as low as $234. There are 2109 mi between Knoxville and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Knoxville to Seattle round-trip?

According to our current data, Frontier ($248), Delta ($318), and American Airlines ($342) offers the cheapest pricing from Knoxville to Seattle. These flights start at 59% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Knoxville to Seattle one-way?

One-way options have recently been found by users for as low as $93 on Frontier. Other airlines that offer cheap prices include American Airlines from $218 and Delta from $218 one-way.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular airlines that fly from Knoxville to Seattle?

The most popular airlines flying from Knoxville to Seattle are American Airlines, United Airlines and Delta. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Knoxville-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Knoxville-Seattle flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Knoxville-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Knoxville to Seattle that include hotel bookings?

Yes. In addition to deals on Knoxville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Knoxville to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Seattle.

Can I find deals for business class flights from Knoxville to Seattle?

Yes. Cheapflights offers flight deals from Knoxville to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$103+ Flights from Knoxville to Seattle

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Seattle/Tacoma Intl are usually found in August or November, booked 44 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Knoxville to Seattle

Cheapest flights from Knoxville to Seattle
Explore the most affordable flight options available from Knoxville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

Thu 12/114:52 pmTYS - SEA

1 stop22h 01mFrontier

Sun 12/1412:48 pmSEA - TYS

1 stop24h 09mFrontier

Deal found 12/3

$299

Sat 12/138:06 amTYS - SEA

1 stop8h 49mAmerican Airlines

Thu 1/112:59 amSEA - TYS

1 stop7h 29mAmerican Airlines

Deal found 12/3

$500

Sat 12/138:06 amTYS - SEA

1 stop8h 49mAmerican Airlines

Wed 12/3112:14 amSEA - TYS

1 stop12h 42mAmerican Airlines

Deal found 12/3

$503

Tue 12/232:00 pmTYS - SEA

2 stops12h 12mUnited Airlines

Tue 1/278:10 amSEA - TYS

1 stop8h 17mUnited Airlines

Deal found 12/3

$505

Tue 12/237:00 amTYS - SEA

1 stop8h 37mAmerican Airlines

Tue 1/2711:55 amSEA - TYS

1 stop7h 52mAmerican Airlines

Deal found 12/4

$511

Fri 12/128:00 amTYS - SEA

2 stops12h 23mMultiple Airlines

Sun 12/1412:48 pmSEA - TYS

1 stop24h 09mMultiple Airlines

Deal found 12/3

$520

Sat 12/136:18 pmTYS - SEA

1 stop8h 20mAmerican Airlines

Fri 1/212:59 amSEA - TYS

1 stop7h 29mAmerican Airlines

Deal found 12/3

$563

Tue 12/304:46 pmTYS - SEA

1 stop22h 44mMultiple Airlines

Sat 1/36:12 pmSEA - TYS

1 stop25h 10mMultiple Airlines

Deal found 12/3

$576

Best flights from Knoxville to Seattle
Discover carefully curated flight deals from Knoxville to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 5, 2025.

Thu 1/292:19 pmTYS - SEA

1 stop10h 48mAmerican Airlines

Tue 2/36:00 amSEA - TYS

1 stop6h 46mAmerican Airlines

Deal found 12/4

$234

Wed 2/411:10 amTYS - SEA

2 stops11h 45mUnited Airlines

Mon 2/912:57 pmSEA - TYS

1 stop7h 47mUnited Airlines

Deal found 12/3

$259

Mon 1/56:09 pmTYS - SEA

1 stop7h 41mDelta

Wed 1/712:00 pmSEA - TYS

1 stop8h 09mDelta

Deal found 12/2

$350

Tue 1/611:10 amTYS - SEA

2 stops10h 16mUnited Airlines

Tue 1/138:10 amSEA - TYS

1 stop8h 17mUnited Airlines

Deal found 12/3

$317

Sat 2/76:59 amTYS - SEA

1 stop8h 50mUnited Airlines

Sat 2/1411:59 pmSEA - TYS

1 stop7h 20mUnited Airlines

Deal found 12/3

$329

Thu 1/292:25 pmTYS - SEA

2 stops11h 18mUnited Airlines

Tue 2/312:57 pmSEA - TYS

1 stop7h 47mUnited Airlines

Deal found 12/4

$359

Wed 5/136:45 amTYS - SEA

1 stop8h 33mDelta

Thu 5/2111:05 pmSEA - TYS

1 stop8h 05mDelta

Deal found 12/3

$464

Fri 1/166:45 amTYS - SEA

1 stop7h 47mUnited Airlines

Fri 1/239:00 amSEA - TYS

2 stops10h 31mUnited Airlines

Deal found 12/2

$375

Wed 2/411:10 amTYS - SEA

2 stops13h 02mUnited Airlines

Sun 2/88:10 amSEA - TYS

1 stop23h 47mUnited Airlines

Deal found 12/3

$404

Mon 1/55:45 amTYS - SEA

1 stop8h 42mUnited Airlines

Wed 1/77:30 pmSEA - TYS

2 stops12h 02mUnited Airlines

Deal found 12/2

$445

Fri 2/66:45 amTYS - SEA

2 stops12h 44mUnited Airlines

Sun 2/85:12 pmSEA - TYS

2 stops14h 20mUnited Airlines

Deal found 12/3

$467

Last-minute flights from Knoxville to Seattle
Discover last-minute flight deals from Knoxville to Seattle. Data last updated December 5, 2025 and is based on user searches.

Thu 12/114:52 pmTYS - SEA

1 stop22h 01mFrontier

Sun 12/1412:48 pmSEA - TYS

1 stop24h 09mFrontier

Deal found 12/3

$299

Mon 1/56:09 pmTYS - SEA

1 stop7h 41mDelta

Wed 1/712:00 pmSEA - TYS

1 stop8h 09mDelta

Deal found 12/2

$350

Mon 1/55:45 amTYS - SEA

1 stop8h 42mUnited Airlines

Wed 1/77:30 pmSEA - TYS

2 stops12h 02mUnited Airlines

Deal found 12/2

$445

Tue 1/64:41 pmTYS - SEA

1 stop8h 06mAmerican Airlines

Tue 1/137:35 amSEA - TYS

1 stop7h 07mAmerican Airlines

Deal found 12/3

$280

Tue 1/611:10 amTYS - SEA

2 stops10h 16mUnited Airlines

Tue 1/138:10 amSEA - TYS

1 stop8h 17mUnited Airlines

Deal found 12/3

$317

Fri 1/1612:19 pmTYS - SEA

1 stop9h 59mAmerican Airlines

Fri 1/2311:55 amSEA - TYS

1 stop7h 52mAmerican Airlines

Deal found 12/2

$325

Fri 1/166:45 amTYS - SEA

1 stop7h 47mUnited Airlines

Fri 1/239:00 amSEA - TYS

2 stops10h 31mUnited Airlines

Deal found 12/2

$375

Thu 1/292:19 pmTYS - SEA

1 stop10h 48mAmerican Airlines

Tue 2/36:00 amSEA - TYS

1 stop6h 46mAmerican Airlines

Deal found 12/4

$234

Thu 1/292:25 pmTYS - SEA

2 stops11h 18mUnited Airlines

Tue 2/312:57 pmSEA - TYS

1 stop7h 47mUnited Airlines

Deal found 12/4

$359

One-way flights from Knoxville to Seattle
Search for one-way flight options from Knoxville to Seattle. Find affordable one-way fares based on user searches. Data last updated December 5, 2025.

Thu 1/84:23 pmTYS - SEA

1 stop21h 58mFrontier

Deal found 12/3

$103

Thu 1/85:29 pmTYS - SEA

1 stop8h 14mUnited Airlines

Deal found 12/3

$133

Thu 1/81:39 pmTYS - SEA

3 stops33h 08mMultiple Airlines

Deal found 12/3

$142

Fri 12/121:05 pmTYS - SEA

2 stops25h 48mMultiple Airlines

Deal found 12/2

$209

Tue 12/94:52 pmTYS - SEA

3 stops44h 14mMultiple Airlines

Deal found 12/3

$273

Thu 12/184:29 pmTYS - SEA

1 stop9h 38mAmerican Airlines

Deal found 12/3

$279

Sun 5/36:28 pmTYS - SEA

1 stop9h 24mAmerican Airlines

Deal found 12/3

$299

Mon 12/223:03 pmTYS - SEA

1 stop11h 10mAmerican Airlines

Deal found 12/3

$327

Thu 12/186:45 amTYS - SEA

2 stops14h 21mUnited Airlines

Deal found 12/3

$334

Find flight deals from Knoxville to Seattle

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$234 (American Airlines)
One-way from	$103 (Booking.com)
Popular in	December
Cheapest in	August
Average price	$751

Provider with most accurate pricing for Knoxville McGhee Tyson-Seattle/Tacoma Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Seattle/Tacoma Intl flights.

Search Deals

From Knoxville McGhee Tyson to Seattle/Tacoma Intl

Search Deals

One-way flight from Knoxville McGhee Tyson to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 1/29

2:19 pm-10:07 pm

1 stop10h 48m

Seattle/Tacoma Intl

Tue 2/3

6:00 am-3:46 pm

1 stop6h 46m

$234

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 2/4

11:10 am-7:55 pm

2 stops11h 45m

Seattle/Tacoma Intl

Mon 2/9

12:57 pm-11:44 pm

1 stop7h 47m

$259

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 1/6

11:10 am-6:26 pm

2 stops10h 16m

Seattle/Tacoma Intl

Tue 1/13

8:10 am-7:27 pm

1 stop8h 17m

$317

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 2/7

6:59 am-12:49 pm

1 stop8h 50m

Seattle/Tacoma Intl

Sat 2/14

11:59 pm-10:19 am

1 stop7h 20m

$329

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 1/5

6:09 pm-10:50 pm

1 stop7h 41m

Seattle/Tacoma Intl

Wed 1/7

12:00 pm-11:09 pm

1 stop8h 09m

$350

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 1/29

2:25 pm-10:43 pm

2 stops11h 18m

Seattle/Tacoma Intl

Tue 2/3

12:57 pm-11:44 pm

1 stop7h 47m

$359

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Fri 1/16

6:45 am-11:32 am

1 stop7h 47m

Seattle/Tacoma Intl

Fri 1/23

9:00 am-10:31 pm

2 stops10h 31m

$375

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 2/4

11:10 am-9:12 pm

2 stops13h 02m

Seattle/Tacoma Intl

Sun 2/8

8:10 am-10:57 am

1 stop23h 47m

$404

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 1/5

5:45 am-11:27 am

1 stop8h 42m

Seattle/Tacoma Intl

Wed 1/7

7:30 pm-10:32 am

2 stops12h 02m

$445

KnoxvilleSeattle

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 5/13

6:45 am-12:18 pm

1 stop8h 33m

Seattle/Tacoma Intl

Thu 5/21

11:05 pm-10:10 am

1 stop8h 05m

$464

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 20 results

Compare providers for flights from Knoxville to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Seattle in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Knoxville-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Knoxville-Seattle flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Knoxville-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Knoxville with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Seattle

Prices

How far ahead should I book a flight from Knoxville to Seattle?

The best time to book flights from Knoxville to Seattle is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Knoxville to Seattle?

Currently, April is the cheapest month in which you can book a flight from Knoxville to Seattle (average of $172). Flying from Knoxville to Seattle in May is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to SEA?

It’s typically best to fly out from Knoxville to Seattle in the evening. Doing so could potentially save you 53% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Knoxville to Seattle?

Travelers seeking maximum savings on their Knoxville to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,065 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,044 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Frontier

5.8

Fair

3,092 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Knoxville to Seattle?
A quick flight from Knoxville to Seattle can take about 10h 48m. American Airlines provides one of the quickest options available for as low as $234. There are 2109 mi between Knoxville and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Knoxville to Seattle round-trip?
According to our current data, Frontier ($248), Delta ($318), and American Airlines ($342) offers the cheapest pricing from Knoxville to Seattle. These flights start at 59% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Knoxville to Seattle one-way?
One-way options have recently been found by users for as low as $93 on Frontier. Other airlines that offer cheap prices include American Airlines from $218 and Delta from $218 one-way.
Can I find deals for flights from Knoxville to Seattle that include hotel bookings?
Yes. In addition to deals on Knoxville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Seattle.
Can I find deals for business class flights from Knoxville to Seattle?
Yes. Cheapflights offers flight deals from Knoxville to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Knoxville to Seattle?
Currently, April is the cheapest month in which you can book a flight from Knoxville to Seattle (average of $172). Flying from Knoxville to Seattle in May is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Seattle

Top 4 airlines flying from Knoxville to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$248	Average$330	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$333	Average$604	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$368	Average$617	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$397	Average$649	FlexibilityNo cancel fee	On-time69%

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$103+ Cheap flights from Knoxville to Seattle (TYS - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Seattle/Tacoma Intl are usually found in August or November, booked 44 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Knoxville to Seattle

Cheapest flights from Knoxville to SeattleExplore the most affordable flight options available from Knoxville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

Explore the most affordable flight options available from Knoxville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

Find flight deals from Knoxville to Seattle

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Knoxville to Seattle that are best for you.

Compare providers for flights from Knoxville to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Seattle in December.

Best time to book a flight from Knoxville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Knoxville with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Seattle

How far ahead should I book a flight from Knoxville to Seattle?

What is the cheapest month to book a flight from Knoxville to Seattle?

What is the cheapest time of day to fly from TYS to SEA?

What is the cheapest day to fly from Knoxville to Seattle?

What’s the top layover airport for flights from Knoxville to Seattle?

What’s the cheapest layover airport for flights from Knoxville to Seattle?

What’s the fastest layover option from Knoxville to Seattle?

Which airport typically offers the quickest layover for flights from Knoxville to Seattle?

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Knoxville to Seattle?

What are the cheapest airlines flying from Knoxville to Seattle round-trip?

What are the cheapest airlines to fly from Knoxville to Seattle one-way?

Can I find deals for flights from Knoxville to Seattle that include hotel bookings?

How can I find direct flights from Knoxville to Seattle?

Can I find deals for business class flights from Knoxville to Seattle?

What is the cheapest month to book a flight from Knoxville to Seattle?

Traveling to a place near Seattle?

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Alternative routes for Knoxville to Seattle

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Top 4 airlines flying from Knoxville to Seattle

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Cheapest flights from Knoxville to Seattle
Explore the most affordable flight options available from Knoxville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.