Knoxville

$128+ Cheap flights from Seattle to Knoxville (SEA - TYS)

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TYS
Feb 16 — Feb 231
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The best prices from Seattle/Tacoma Intl to Knoxville McGhee Tyson are usually found in August or May, booked 6 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Seattle to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(eDestinos)

One-way from

$128
(Mytrip)

Popular in

January

Cheapest in

August

Average price

$668
Provider with most accurate pricing for Seattle/Tacoma Intl-Knoxville McGhee Tyson flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Knoxville McGhee Tyson flights.
From Seattle/Tacoma Intl to Knoxville McGhee Tyson
One-way flight from Seattle/Tacoma Intl to Knoxville McGhee Tyson
Highest demand for flights based on searches. 8% potential increase in price ($63 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Seattle to Knoxville

Cheapest flights from Seattle to Knoxville
Explore the most affordable flight options available from Seattle to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2025.

This eDestinos deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/51:36 pmSEA - TYS
1 stop21h 24mMultiple Airlines
Wed 3/1211:00 amTYS - SEA
1 stop25h 30mMultiple Airlines
Deal found 2/10$249
This American Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/411:59 pmSEA - TYS
1 stop11h 39mAmerican Airlines
Sun 4/63:09 pmTYS - SEA
1 stop11h 00mAmerican Airlines
Deal found 2/9$402
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1811:59 pmSEA - TYS
1 stop20h 01mUnited Airlines
Mon 3/37:25 pmTYS - SEA
2 stops19h 19mUnited Airlines
Deal found 2/10$502
This Frontier deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:00 amSEA - TYS
1 stop7h 08mFrontier
Thu 5/295:08 pmTYS - SEA
1 stop10h 35mFrontier
Deal found 2/10$576
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:05 pmSEA - TYS
1 stop9h 28mDelta
Wed 5/285:55 pmTYS - SEA
1 stop7h 30mDelta
Deal found 2/10$619
This Alaska Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:00 amSEA - TYS
2 stops12h 22mAlaska Airlines
Mon 9/16:05 amTYS - SEA
1 stop9h 27mAlaska Airlines
Deal found 2/10$744

Find flights from Seattle to Knoxville within your budget

Customize your flight search to find flights from Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2025.

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Depart

Return

Price

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Wed 3/5

1:36 pm-2:00 pm

1 stop21h 24m

Knoxville McGhee Tyson

Wed 3/12

11:00 am-9:30 am

1 stop25h 30m

$249

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Fri 4/4

11:59 pm-2:38 pm

1 stop11h 39m

Knoxville McGhee Tyson

Sun 4/6

3:09 pm-11:09 pm

1 stop11h 00m

$402

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Sat 4/26

8:50 am-10:22 pm

2 stops10h 32m

Knoxville McGhee Tyson

Sat 5/3

5:35 pm-10:42 pm

1 stop8h 07m

$514

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Thu 5/22

6:00 am-4:08 pm

1 stop7h 08m

Knoxville McGhee Tyson

Thu 5/29

5:08 pm-12:43 am

1 stop10h 35m

$576

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Fri 5/23

11:05 pm-11:33 am

1 stop9h 28m

Knoxville McGhee Tyson

Wed 5/28

5:55 pm-10:25 pm

1 stop7h 30m

$619

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Tue 5/27

12:34 am-11:40 am

1 stop8h 06m

Knoxville McGhee Tyson

Wed 6/4

2:56 pm-10:00 pm

1 stop10h 04m

$759

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Wed 3/26

9:48 am-8:02 pm

1 stop7h 14m

$128

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Fri 5/2

11:59 pm-2:38 pm

1 stop11h 39m

$204

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Wed 4/9

7:00 am-10:22 pm

1 stop12h 22m

$249

SeattleKnoxville

SEA - TYS

SEATYS

Seattle/Tacoma Intl

Wed 5/14

12:34 am-11:40 am

1 stop8h 06m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Compare providers for flights from Seattle to Knoxville

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 Seattle to Knoxville in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 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 Seattle-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-Knoxville 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 Seattle to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Seattle 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.

Travel insights for flights from Seattle to Knoxville

Get recent, data-driven insights about flights from Seattle to Knoxville including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Knoxville. Price data was last updated on February 7, 2025.

The price you pay for your flight from Seattle to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 6 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Knoxville (average of $296). Flying from Seattle to Knoxville in March is currently the most expensive (average of $376). 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 SEA to TYS?

Find hourly flight availability from Seattle to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 11, 2025.

It’s optimal to fly from Seattle to Knoxville in the afternoon. By choosing this option you can save up to 72% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Knoxville. Price data was last updated on December 16, 2024.

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

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated February 11, 2025.

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20

8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from Seattle to Knoxville round-trip?

    Cheapflights users have booked flights from Seattle to Knoxville round-trip from $402. Other airlines that can offer you cheap pricing are United Airlines, from $502, and Alaska Airlines, from $874. Users have found that American Airlines is 40% cheaper than the other options available to this destination.

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

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

  • How can I find direct flights from Seattle to Knoxville?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Knoxville 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 Seattle to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Knoxville (average of $296). Flying from Seattle to Knoxville in March is currently the most expensive (average of $376). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Morristown
Corbin
Cherokee
Maryville
Oak Ridge
Alcoa
Murphy

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Top 5 airlines flying from Seattle to Knoxville

Discover the top 5 airlines that operate flights from Seattle to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$158Average$247FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$424Average$656FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$492Average$662FlexibilityNo cancel feeOn-time69%
DeltaCheapest$518Average$726FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$663Average$807FlexibilityNo cancel feeOn-time75%
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