Cheap Flights from Knoxville, TN to Seattle, WA from $82

Return flight: Seattle – Knoxville

On Cheapflightsplus.com you will find 192 connecting flights from Knoxville to Seattle. You can compare airfare deals from 4 airlines and multiple travel sites from $82, book and save on cheap plane tickets and last minute offers. Also check out TYS-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Knoxville to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $82 (one-way), $141 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Knoxville to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
05:23 — 12:29
05:23 — 07:08 AS4348 Alaska Airlines
Knoxville — Dallas
2h 52m stop
10:00 — 12:29 AS573 Alaska Airlines
Dallas — Seattle
10h 6m
including layover
Find flight
from$573
05:45 — 20:20
05:45 — 07:33 UA4311 United Airlines
Knoxville — Washington D.C.
9h 42m stop
17:15 — 20:20 UA326 United Airlines
Washington D.C. — Seattle
17h 35m
including layover
Find flight
from$472
07:00 — 22:53
07:00 — 08:02 UA1677 United Airlines
Knoxville — Chicago
12h 2m stop
20:04 — 22:53 UA2211 United Airlines
Chicago — Seattle
18h 53m
including layover
Find flight
from$389
07:00 — 16:16
07:00 — 08:02 UA1677 United Airlines
Knoxville — Chicago
5h 28m stop
13:30 — 16:16 UA1485 United Airlines
Chicago — Seattle
12h 16m
including layover
Find flight
from$447
08:55 — 18:09
08:55 — 10:33 UA5673 United Airlines
Knoxville — Denver
5h 31m stop
16:04 — 18:09 UA759 United Airlines
Denver — Seattle
12h 14m
including layover
Find flight
from$367
08:55 — 23:11
08:55 — 10:33 UA5673 United Airlines
Knoxville — Denver
10h 32m stop
21:05 — 23:11 UA2651 United Airlines
Denver — Seattle
17h 16m
including layover
Find flight
from$367
09:00 — 17:37
09:00 — 10:48 G41400 Allegiant Air
Knoxville — Las Vegas
4h 9m stop
14:57 — 17:37 NK781 Spirit Airlines
Las Vegas — Seattle
11h 37m
including layover
Find flight
from$235
09:55 — 20:19
09:55 — 11:37 UA4325 United Airlines
Knoxville — Washington D.C.
5h 42m stop
17:19 — 20:19 UA1730 United Airlines
Washington D.C. — Seattle
13h 24m
including layover
Find flight
from$442
10:50 — 22:46
10:50 — 11:54 UA5300 United Airlines
Knoxville — Chicago
8h 1m stop
19:55 — 22:46 UA2850 United Airlines
Chicago — Seattle
14h 56m
including layover
Find flight
from$503
10:55 — 22:46
10:55 — 11:59 UA5300 United Airlines
Knoxville — Chicago
7h 56m stop
19:55 — 22:46 UA2211 United Airlines
Chicago — Seattle
14h 51m
including layover
Find flight
from$566
11:50 — 22:50
11:50 — 13:26 UA4302 United Airlines
Knoxville — Houston
6h 24m stop
19:53 — 22:53 UA2456 United Airlines
Houston — Seattle
14h
including layover
Find flight
from$516
11:50 — 19:20
11:50 — 13:26 UA4302 United Airlines
Knoxville — Houston
2h 54m stop
16:20 — 19:20 UA522 United Airlines
Houston — Seattle
10h 30m
including layover
Find flight
from$576
13:55 — 22:53
13:55 — 14:51 UA5844 United Airlines
Knoxville — Chicago
5h 13m stop
20:04 — 22:53 UA2211 United Airlines
Chicago — Seattle
11h 58m
including layover
Find flight
from$561
13:58 — 22:46
13:58 — 15:02 UA5844 United Airlines
Knoxville — Chicago
4h 53m stop
19:55 — 22:46 UA2850 United Airlines
Chicago — Seattle
11h 48m
including layover
Find flight
from$503
14:06 — 08:58
+1 day
14:06 — 15:12 UA3716 United Airlines
Knoxville — Chicago
15h 8m stop
06:20 — 08:58 AS333 Alaska Airlines
Chicago — Seattle
21h 52m
including layover
Find flight
from$564
14:06 — 22:46
14:06 — 15:12 UA3716 United Airlines
Knoxville — Chicago
4h 43m stop
19:55 — 22:46 UA2211 United Airlines
Chicago — Seattle
11h 40m
including layover
Find flight
from$566
16:30 — 09:58
+1 day
16:30 — 18:02 UA2028 United Airlines
Knoxville — Denver
13h 48m stop
07:50 — 09:58 UA1399 United Airlines
Denver — Seattle
20h 28m
including layover
Find flight
from$367
16:30 — 09:58
+1 day
16:30 — 18:02 UA1819 United Airlines
Knoxville — Denver
13h 48m stop
07:50 — 09:58 UA1399 United Airlines
Denver — Seattle
20h 28m
including layover
Find flight
from$409
17:43 — 08:58
+1 day
17:43 — 18:52 UA5330 United Airlines
Knoxville — Chicago
11h 28m stop
07:00 — 09:38 AS333 Alaska Airlines
Chicago — Seattle
18h 15m
including layover
Find flight
from$564
17:47 — 12:07
+1 day
17:47 — 18:50 UA5305 United Airlines
Knoxville — Chicago
14h 30m stop
09:20 — 12:07 UA2849 United Airlines
Chicago — Seattle
21h 20m
including layover
Find flight
from$307
19:24 — 11:32
+1 day
19:25 — 21:15 UA4324 United Airlines
Knoxville — Washington D.C.
11h 25m stop
08:35 — 11:35 UA1964 United Airlines
Washington D.C. — Seattle
19h 8m
including layover
Find flight
from$537
22:35 — 08:15
+1 day
19:30 — 20:46 F94369 Frontier Airlines
Knoxville — Denver
6h 6m stop
06:00 — 08:15 F91175 Frontier Airlines
Denver — Seattle
12h 40m
including layover
Find flight
from$82
22:35 — 19:27
+1 day
19:30 — 20:46 F94369 Frontier Airlines
Knoxville — Denver
17h 23m stop
18:58 — 21:09 F93405 Frontier Airlines
Denver — Seattle
23h 52m
including layover
Find flight
from$82
*Departure and arrival times - local. Updated on May 11, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Knoxville to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Knoxville and Seattle is 3395 miles. Time difference between the cities is 3h. Airplanes depart 05:23 to 22:35 from 1 Knoxville airport and arrive 05:23 to 22:35 to 3 Seattle airports. Average flight time is 13h 18m.

  • The fastest flight 7h 35m
  • Average flight time 13h 18m
  • The earliest flight 05:23
  • The latest flight 22:35
  • Distance 2110 ml

The cheapest months to travel to Seattle are november (from 82 $), february (from 235 $), december (from 252 $).

The most expensive months are january (from 307 $), december (from 252 $), february (from 235 $).

What is the lowest airfare Knoxville to Seattle?

The cheapest plane ticket found by our users is $82. This airfare is for economy class on one-way F94369 flight by Frontier Airlines for November 11, 2024 which leaves Mc Ghee Tyson in Knoxville at 22:35 am and arrives at Seattle Seattle-Tacoma Intl at 19:27.

Economy class
$82
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Business class
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First class
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Popular Airlines on the Route

The flight Knoxville — Seattle is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 8 departures per week at the price of from $ 573 . And the most expensive tickets are offered by United Airlines airline - from $ 1322.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 192 flights with layovers on the route. The fastest connecting flight is UA1819 by United Airlines takes 7h 35m and the cheapest is F94369 by Frontier Airlines for $82.

  • AS - Alaska Airlines
    from $573
    Find
  • F9 - Frontier Airlines
    from $82
    Find
  • UA - United Airlines
    from $307
    Find
  • G4 - Allegiant Air
    from $235
    Find
See more connecting flights

Airports

You can fly from Knoxville to Seattle from 1 airports (Mc Ghee Tyson).

Knoxville airports

  • Mc Ghee Tyson-TYS
    from $82
    Find

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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