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$138+ Cheap flights from Knoxville to Seattle (TYS - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Nov 3 — Nov 101
Sun 11/3
Sun 11/10
1 adult, Economy
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TYS - SEA
Nov 3 - Nov 10

Find cheap flights from Knoxville to Seattle with Cheapflights

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The best prices from Knoxville McGhee Tyson to Seattle/Tacoma Intl are usually found in January or February, booked 25 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Knoxville to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Seattle (SEA). 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 October 29, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

January

Average price

$622

Round-trip from

$138
(Booking.com)
Provider with most accurate pricing for Knoxville McGhee Tyson-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Seattle/Tacoma Intl flights.
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High demand for flights, 17% potential price rise
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Best time to find cheap flights, 11% potential price drop
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Average for round-trip flights in October 2024
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From Knoxville McGhee Tyson to Seattle/Tacoma Intl
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Find 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 October 29, 2024.

This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1110:35 pmTYS - SEA
1 stop12h 40mFrontier
Thu 11/1410:11 pmSEA - TYS
1 stop18h 12mFrontier
Deal found 10/28$138
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/2211:42 amTYS - SEA
1 stop14h 42mAmerican Airlines
Thu 11/2812:25 amSEA - TYS
1 stop12h 43mAmerican Airlines
Deal found 10/28$361
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/810:00 amTYS - SEA
2 stops28h 55mMultiple Airlines
Sat 12/146:13 pmSEA - TYS
2 stops21h 22mMultiple Airlines
Deal found 10/28$466
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 12/117:00 amTYS - SEA
1 stop11h 57mUnited Airlines
Mon 1/1311:59 pmSEA - TYS
1 stop10h 18mUnited Airlines
Deal found 10/28$474
This Delta deal was found by Cheapflights users on 10/28. 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.
Sat 12/216:57 pmTYS - SEA
1 stop8h 27mDelta
Thu 1/26:15 amSEA - TYS
1 stop6h 33mDelta
Deal found 10/28$668
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 10/295:35 amTYS - SEA
2 stops30h 10mAlaska Airlines
Wed 10/3010:50 amSEA - TYS
1 stop9h 01mAlaska Airlines
Deal found 10/28$1,073

Find flights from Knoxville to Seattle within your budget

Customize your flight search to find flights from Knoxville to Seattle 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 2,539,541 searches. Data last updated October 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$138 - $608

Route

Depart

Return

Price

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 11/11

1 stop12h 40m

Seattle/Tacoma Intl

Thu 11/14

1 stop18h 12m

$138

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Fri 11/22

1 stop14h 42m

Seattle/Tacoma Intl

Thu 11/28

1 stop12h 43m

$361

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sun 12/8

2 stops28h 55m

Seattle/Tacoma Intl

Sat 12/14

2 stops21h 22m

$466

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 1/15

1 stop12h 16m

Seattle/Tacoma Intl

Wed 1/22

2 stops16h 37m

$472

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 1/14

1 stop7h 56m

Seattle/Tacoma Intl

Tue 1/21

1 stop8h 00m

$608

Flights are sorted by cheapest first

Deals found on 10/28

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 October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Seattle flight deals on Cheapflights vs. FlightHub >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 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 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.

Travel insights for flights from Knoxville to Seattle

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Seattle. Price data was last updated on October 25, 2024.

The best time to book flights from Knoxville to Seattle is 25 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.

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

Currently, January is the cheapest month in which you can book a flight from Knoxville to Seattle (average of $238). Flying from Knoxville to Seattle in July is currently the most expensive (average of $411). 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?

Find hourly flight availability from Knoxville to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2024.

It’s typically best to fly out from Knoxville to Seattle in the evening. Doing so could potentially save you 47% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Seattle. Price data was last updated on October 27, 2024.

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

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Rainfall in Seattle by month

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

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.

Temperature in Seattle by month

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

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).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated October 29, 2024.
Peruse reviews from past customers who have flown with Frontier, 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
8.0
Very good
8,845 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta
8.0
Very good
8,845 reviews
Delta
8.0
Very good
8,845 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

United Airlines
7.4
Good
9,249 reviews
Delta
8.0
Very good
8,845 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

American Airlines
7.3
Good
10,000 reviews
Delta
8.0
Very good
8,845 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Frontier
6.1
Okay
3,585 reviews
Delta
8.0
Very good
8,845 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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.

  • Can I find flights from Knoxville to Seattle for under $200 on Cheapflights?

    Yes, there are multiple flights from Knoxville to Seattle for under $200. The cheapest flight booked recently is on Frontier for just $138, but on average you can expect to pay $409.

  • Are there last-minute flights available from Knoxville to Seattle for under $200?

    There are currently 4+ open flights from Knoxville to Seattle within the next 7 days for less than $200.

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

    According to our current data, Frontier ($138), American Airlines ($361), and United Airlines ($472) offers the cheapest pricing from Knoxville to Seattle. These flights start at 78% 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 $161 on Frontier. Other airlines that offer cheap prices include United Airlines from $249 and American Airlines from $306 one-way.

  • What does TYS to SEA mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Knoxville McGhee Tyson Airport to Seattle/Tacoma Intl Airport flight would often be abbreviated as a TYS to SEA flight.

  • Can I find deals for flights from Knoxville to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Knoxville to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Knoxville to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Knoxville to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Knoxville to Seattle that allow pets onboard?

    Many airlines flying from Knoxville to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Knoxville to Seattle?

    Yes, you can often find last-minute deals on Knoxville to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Knoxville to Seattle flight deals updated?

    The Knoxville to Seattle flight deals you see on this page were last updated on 10/28.

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

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Seattle (average of $238). Flying from Knoxville to Seattle in July is currently the most expensive (average of $411). 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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Top 5 airlines flying from Knoxville to Seattle

Discover the top 5 airlines that operate flights from Knoxville to Seattle. 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 2,539,541 searches. Data last updated October 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$120Average$303FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$386Average$637FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$409Average$817FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$478Average$698FlexibilityNo cancel feeOn-time69%
DeltaCheapest$548Average$730FlexibilityNo cancel feeOn-timeN/A
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