SEA - TYS

$182 Find Cheap Flights from Seattle to Knoxville - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$363
Typical prices: $427-$624
American Airlines
Wed 11/7Sat 11/10
SEA - TYS • 1 stop
Cheapest one-way
$182
Typical prices: $236-$383
United Airlines
Sat 12/8
SEA - TYS • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Knoxville. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
24 weeks
in advance
Our data shows that travelers who book at least 24 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
When to travel
October
Cheapest • 16% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $491 (round-trip)
Minneapolis St Paul (MSP)
Shortest trip • 7h 18m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Knoxville (SEA-TYS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Knoxville

Fri, Dec 11 - Thu, Dec 17
American Airlines Logo
11:39 pm - 10:51 amSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
6:48 pm - 11:59 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 11m1 stop Dallas/Fort Worth
$363American Airlines
Sat, Nov 7 - Tue, Nov 10
American Airlines Logo
12:47 pm - 11:32 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
7h 45m1 stop Dallas/Fort Worth
American Airlines Logo
5:30 am - 1:15 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
10h 45m1 stop Dallas/Fort Worth
$363American Airlines
Tue, Dec 8 - Fri, Dec 11
Delta Logo
9:50 am - 9:33 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 43m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:49 am - 6:43 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
9h 54m1 stop Detroit Metropolitan Wayne County
$363Delta
Tue, Dec 8 - Fri, Dec 11
Southwest Logo
5:40 am - 7:45 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
11h 05m2 stops Phoenix Sky Harbor Intl Nashville Intl
Southwest Logo
5:25 pm - 11:00 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 35m1 stop Denver Intl
$382Southwest
Tue, Dec 8 - Fri, Dec 11
Southwest Logo
5:40 am - 7:45 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
11h 05m2 stops Phoenix Sky Harbor Intl Nashville Intl
Southwest Logo
5:25 pm - 12:05 amTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
9h 40m2 stops Denver Intl Sacramento Intl
$387Southwest
Wed, Dec 2 - Thu, Dec 3
Delta Logo
9:50 am - 9:33 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 43m1 stop Detroit Metropolitan Wayne County
Delta Logo
5:40 am - 10:18 amTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
7h 38m1 stop Atlanta Hartsfield-Jackson
$411Delta
Tue, Jan 12 - Tue, Jan 19
United Airlines Logo
7:00 am - 9:05 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
11h 05m2 stops Los Angeles Chicago O'Hare Intl
United Airlines Logo
4:28 pm - 9:17 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
7h 49m1 stop Denver Intl
$416United Airlines
Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
9:13 pm - 10:35 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
22h 22m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
10:09 pm - 6:33 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
23h 24m2 stops Las Vegas Harry Reid Intl Los Angeles
$475Multiple Airlines
Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
9:13 pm - 10:35 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
22h 22m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
10:09 pm - 6:33 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
23h 24m2 stops Las Vegas Harry Reid Intl Los Angeles
$476Multiple Airlines
Thu, Nov 5 - Tue, Nov 10
United Airlines Logo
8:09 am - 7:36 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 27m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:40 pm - 11:07 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 27m1 stop Chicago O'Hare Intl
$479United Airlines
Booking Insights

Price, demand and travel trends for Seattle to Knoxville flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Seattle to Knoxville?

Round-trip flights from Seattle to Knoxville typically range from $427 to $624. The lowest price found in the past 5 days was $363, on American Airlines.

What's the cheapest day of the week to fly from Seattle to Knoxville?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Seattle to Knoxville. It’s 12% cheaper than the average day, while Friday is the most expensive, with prices 13% higher.

What’s the cheapest month to fly from Seattle to Knoxville?

•October is the cheapest month to fly from Seattle to Knoxville at $436 round-trip.
•March ($637) and June ($608) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 46% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Knoxville the cheapest?

Flights from Seattle to Knoxville are cheapest 24 weeks before departure. Booking in this window typically costs about 55% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Seattle to Knoxville flights

Low season

February

Cheapest flight

$182
Beat the crowds with an average 25% drop in travelers.
The most popular month to fly with an average 45% increase in travelers.
One-way flight from Seattle to Knoxville

When to book flights from Seattle to Knoxville

Are your dates flexible? Find out the best times to travel from Seattle to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Knoxville flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Seattle to Knoxville?

    Two cabin classes are available on flights from Seattle to Knoxville:

    • Economy Class
    • First Class

  • How long is a flight from Seattle to Knoxville?

    A nonstop flight from Seattle to Knoxville takes 00m, covering 2,109 miles.

  • Do I need a passport to fly from Seattle to Knoxville?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Seattle to Knoxville flight?

    Round-trip flights from Seattle to Knoxville range from $427 to $624, with an average of $519 over the past 12 months. Anything below $427 counts as a good deal.

  • How expensive are last-minute Seattle to Knoxville flights?

    Last-minute fares on this route (booked within two weeks of departure) run 33% above the $519 route average. Book 24 weeks before departure for the lowest fares.

  • Have flight prices from Seattle to Knoxville changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $363 to $1,605. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Seattle to Knoxville looking right now?

    One-way fares from Seattle to Knoxville are currently lower than usual. Average one-way flight prices are about $251, which is 20% below the typical average for this route.

  • What car rental options are available at Knoxville McGhee Tyson Airport (TYS)?

    Knoxville McGhee Tyson Airport (TYS) hosts 5 major car rental companies, with daily rates starting from around $33 for economy cars. Top options include:

    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Thrifty
    • Avis

  • Which airports can I use when flying from Seattle to Knoxville?

    Flights from Seattle to Knoxville usually depart from Seattle/Tacoma Intl (SEA) and arrive at Knoxville McGhee Tyson (TYS).

  • Which airports do connecting flights from Seattle to Knoxville pass through?

    One-stop flights from Seattle to Knoxville most commonly connect through:

    • Dallas/Fort Worth (DFW) - 36% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 29% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 13% of one-stop connections
    • Denver Intl (DEN) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Knoxville?

    Yes. Flexible dates can save you up to 23% on flights from Seattle to Knoxville. Wednesday is the cheapest departure day at $458 round-trip on average, while Friday is the most expensive at $589, a difference of $131.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Seattle to Knoxville?

    Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 7h 18m, compared with 7h 32m via Atlanta Hartsfield-Jackson (ATL) and 7h 55m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Seattle and Knoxville?

    Knoxville is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which kid-friendly options does United Airlines provide on flights from Seattle to Knoxville?

    United Airlines offers a range of kid-friendly options on flights from Seattle to Knoxville, ensuring an enjoyable journey for young travelers. Children can enjoy a variety of entertainment choices, including kid-friendly movies, TV shows, and games on personal seat back screens. Additionally, the airline offers activity kits that contain coloring books, games, and puzzles to keep children engaged during the flight.

  • Which American Airlines layovers are common on flights from Seattle to Knoxville?

    Common layovers on flights from Seattle to Knoxville with American Airlines may include cities such as Dallas-Fort Worth, Charlotte, and Chicago. These layovers often provide convenient connections for passengers traveling between the two cities. For instance, passengers may have a layover in Dallas-Fort Worth International Airport, Charlotte Douglas International Airport, or Chicago O'Hare International Airport before continuing their journey to Knoxville.

  • American Airlines uses which lounges for flights from Seattle to Knoxville?

    American Airlines offers access to several lounges for passengers flying from Seattle to Knoxville. One example is the American Airlines Admirals Club at Seattle-Tacoma International Airport. Another option is the Admirals Club at Knoxville's McGhee Tyson Airport, providing a relaxing environment before the flight. These lounges enhance the overall travel experience for American Airlines' customers on this route.

  • Which ground transportation means can I use from the airport after my flight from Seattle to Knoxville?

    After your flight from Seattle to Knoxville, you can utilize numerous public transportation options from the airport. For instance, you can hop on the McGhee Tyson Airport shuttle service, which provides convenient connections to various destinations within Knoxville. Additionally, there are local bus services like KAT (Knoxville Area Transit) that offer affordable and accessible travel throughout the city.

Your guide to booking Seattle to Knoxville flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $458, about $131 less than Friday fares (22% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 24 weeks before you fly. On this route, that window historically saves about 55% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Knoxville trip for October. Fares historically average $436 round-trip in that month - typically $201 less than the most expensive month, which is March (based on the last 12 months).
  • United Airlines has specific pet restrictions for flights from Seattle (SEA) to Knoxville (TYS). Only cats and dogs are allowed as in-cabin pets, while other animals must be transported in the cargo hold. In-cabin pets must be small enough to fit comfortably in a carrier under the seat in front of you. The weight limit for pets in the cabin is typically 20 lbs., including the weight of the carrier.
  • Passengers flying United Airlines from Seattle to Knoxville can pre-select their seats. When booking their tickets or managing their reservations online, passengers have the option to choose their preferred seats. By pre-selecting seats, passengers can ensure their desired seating arrangements and enhance their travel experience with United Airlines.
  • United Airlines supports sustainable travel on flights from Seattle to Knoxville by implementing various eco-friendly initiatives. They utilize fuel-efficient aircraft, optimize flight routes to reduce fuel consumption, and encourage passengers to participate in their carbon offset program. By prioritizing sustainability, United Airlines strives to minimize their environmental impact and promote greener travel choices.
  • You can rent a car after your flight from Seattle to Knoxville. There are several rental companies available at Knoxville's McGhee Tyson Airport, including major brands like Hertz, Avis, Enterprise, Budget, and National Car Rental. These companies offer a range of vehicles to pick from, accommodating various budgets and preferences. Simply visit their respective counters at the airport to arrange your rental and explore Knoxville and its surroundings conveniently.
  • Frontier Airlines offers a range of in-flight entertainment amenities on their flights from Seattle to Knoxville, ensuring passengers have an enjoyable journey. Travelers can expect to find a variety of options, such as seat back screens with a selection of movies and TV shows, in-flight magazines to browse through, and even free internet connectivity for those who prefer to stream their own entertainment on personal devices.

More options for your flight from Seattle to Knoxville

Complete your trip to Knoxville with a hotel stay or car rental

Car rentals in Knoxville
Hotels in Knoxville
Vacations in Knoxville