SEA - TYS

$175 Find Cheap Flights from Seattle to Knoxville - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% 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
$333
Typical prices: $454-$632
Multiple Airlines
Sun 11/11Fri 11/16
SEA - TYS • 1 stop
Cheapest one-way
$175
Typical prices: $240-$386
Multiple Airlines
Sun 11/4
SEA - TYS • 3 stops
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
21 weeks
in advance
Our data shows that travelers who book at least 21 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 12% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Detroit Metropolitan Wayne County (DTW)
Cheapest • Avg $514 (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

Wed, Nov 11 - Mon, Nov 16
Multiple Airlines Logo
4:27 pm - 1:19 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
17h 52m1 stop Denver Intl
Multiple Airlines Logo
10:09 pm - 6:54 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
47h 45m2 stops Las Vegas Harry Reid Intl Los Angeles
$333Multiple Airlines
Mon, Oct 19 - Mon, Oct 26
American Airlines Logo
5:00 am - 4:36 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 36m1 stop Dallas/Fort Worth
American Airlines Logo
6:55 pm - 12:36 amTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 41m1 stop Chicago O'Hare Intl
$363American Airlines
Wed, Oct 14 - Wed, Oct 21
United Airlines Logo
8:25 am - 8:19 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 54m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
7:15 am - 12:48 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 33m1 stop Houston George Bush Intcntl
$363United Airlines
Tue, Oct 20 - Tue, Oct 27
United Airlines Logo
11:14 pm - 10:37 amSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 23m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
10:45 am - 3:32 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
7h 47m1 stop Chicago O'Hare Intl
$363United Airlines
Mon, Oct 19 - Mon, Oct 26
Delta Logo
6:00 am - 6:24 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
9h 24m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:16 pm - 11:59 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
7h 43m1 stop Minneapolis St Paul
$363Delta
Mon, Oct 26 - Thu, Oct 29
Delta Logo
11:10 pm - 10:20 amSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
8h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
8:35 am - 2:19 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 44m1 stop Atlanta Hartsfield-Jackson
$363Delta
Sat, Nov 7 - Wed, Nov 11
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
12:20 pm - 6:10 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
8h 50m1 stop Charlotte Douglas
$363American Airlines
Tue, Nov 17 - Wed, Dec 2
Southwest Logo
6:10 am - 3:30 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
6h 20m1 stop Denver Intl
Southwest Logo
2:40 pm - 10:50 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
11h 10m2 stops Dallas Love Field Denver Intl
$368Southwest
Wed, Feb 3 - Sat, Feb 6
Alaska Airlines Logo
8:47 am - 11:19 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
11h 32m2 stops Portland Dallas/Fort Worth
Alaska Airlines Logo
11:57 am - 6:40 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
9h 43m2 stops Chicago O'Hare Intl Portland
$683Alaska Airlines
Wed, Oct 7 - Sat, Oct 10
Alaska Airlines Logo
11:33 am - 11:59 pmSEA  Seattle/Tacoma Intl-TYS Knoxville McGhee Tyson
9h 26m2 stops Boise Air Term. Gowen Fld Chicago O'Hare Intl
Alaska Airlines Logo
7:30 am - 4:56 pmTYS  Knoxville McGhee Tyson-SEA Seattle/Tacoma Intl
12h 26m2 stops Chicago O'Hare Intl Boise Air Term. Gowen Fld
$741Alaska 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.

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 Thursday is the most expensive, with prices 11% higher.

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

•November is the cheapest month to fly from Seattle to Knoxville at $471 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 35% 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 21 weeks before departure. Booking in this window typically costs about 44% 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

$175
Beat the crowds with an average 34% drop in travelers.
The most popular month to fly with an average 16% 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 $454 to $632, with an average of $536 over the past 12 months. Anything below $454 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 29% above the $536 route average. Book 21 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 $333 to $1,630. That means the highest observed fare was about 5x 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 $181, which is 46% 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
    • Thrifty
    • Enterprise Rent-A-Car
    • Payless

  • 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) - 39% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 20% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 14% of one-stop connections
    • Denver Intl (DEN) - 12% 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 21% on flights from Seattle to Knoxville. Wednesday is the cheapest departure day at $474 round-trip on average, while Thursday is the most expensive at $598, a difference of $124.

    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 35m via Atlanta Hartsfield-Jackson (ATL) and 7h 47m 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 Thursday. On this route, Wednesday flights average $474, about $124 less than Thursday fares (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 44% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Knoxville trip for November. Fares historically average $471 round-trip in that month - typically $166 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