Cheap Flights from Seattle, WA to Knoxville, TN from $186

Return flight: Knoxville – Seattle

On Cheapflightsplus.com you will find 46 connecting flights from Seattle to Knoxville. You can compare airfare deals from 4 airlines and multiple travel sites from $186, book and save on cheap plane tickets and last minute offers. Also check out SEA-TYS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Knoxville 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: $186 (one-way), $319 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Knoxville. 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
05:02 — 22:30
05:00 — 08:47 UA2269 United Airlines
Seattle — Denver
8h 49m stop
17:33 — 22:30 UA4798 United Airlines
Denver — Knoxville
14h 28m
including layover
Find flight
from$367
08:00 — 14:43
+1 day
08:00 — 16:06 UA1360 United Airlines
Seattle — Washington D.C.
20h 49m stop
12:55 — 14:43 UA4251 United Airlines
Washington D.C. — Knoxville
27h 43m
including layover
Find flight
from$332
08:55 — 23:00
08:55 — 15:10 AS408 Alaska Airlines
Seattle — Chicago
5h 5m stop
20:15 — 23:00 UA1871 United Airlines
Chicago — Knoxville
11h 5m
including layover
Find flight
from$452
09:00 — 22:29
08:30 — 12:14 UA1829 United Airlines
Seattle — Denver
4h 48m stop
17:33 — 22:30 UA4798 United Airlines
Denver — Knoxville
10h 29m
including layover
Find flight
from$367
10:01 — 23:46
10:01 — 16:36 AS438 Alaska Airlines
Seattle — Houston
3h 52m stop
20:28 — 23:46 UA4810 United Airlines
Houston — Knoxville
10h 45m
including layover
Find flight
from$455
10:52 — 23:00
10:52 — 16:58 UA2296 United Airlines
Seattle — Chicago
3h 17m stop
20:15 — 23:00 UA1871 United Airlines
Chicago — Knoxville
9h 8m
including layover
Find flight
from$475
11:05 — 22:36
11:05 — 17:10 UA747 United Airlines
Seattle — Chicago
2h 41m stop
19:51 — 22:36 UA1156 United Airlines
Chicago — Knoxville
8h 31m
including layover
Find flight
from$469
11:46 — 23:00
11:46 — 18:00 AS352 Alaska Airlines
Seattle — Chicago
2h 15m stop
20:15 — 23:00 UA1871 United Airlines
Chicago — Knoxville
8h 14m
including layover
Find flight
from$446
12:34 — 22:30
12:00 — 15:49 AS602 Alaska Airlines
Seattle — Denver
1h 21m stop
17:31 — 22:29 UA4798 United Airlines
Denver — Knoxville
6h 56m
including layover
Find flight
from$518
12:35 — 22:29
12:35 — 16:17 UA1483 United Airlines
Seattle — Denver
1h 14m stop
17:31 — 22:29 UA4798 United Airlines
Denver — Knoxville
6h 54m
including layover
Find flight
from$469
19:13 — 14:58
+1 day
19:13 — 22:57 UA1387 United Airlines
Seattle — Denver
11h 13m stop
10:10 — 14:58 UA2420 United Airlines
Denver — Knoxville
16h 45m
including layover
Find flight
from$304
21:40 — 09:59
+1 day
21:40 — 05:32 AS307 Alaska Airlines
Seattle — Washington D.C.
2h 43m stop
08:15 — 09:59 UA4257 United Airlines
Washington D.C. — Knoxville
9h 19m
including layover
Find flight
from$452
21:40 — 14:39
+1 day
21:40 — 05:32 AS307 Alaska Airlines
Seattle — Washington D.C.
7h 23m stop
12:55 — 14:39 UA4227 United Airlines
Washington D.C. — Knoxville
13h 59m
including layover
Find flight
from$457
22:08 — 16:50
+1 day
20:19 — 00:05 F91176 Frontier Airlines
Seattle — Denver
10h 7m stop
13:45 — 18:29 F92374 Frontier Airlines
Denver — Knoxville
15h 42m
including layover
Find flight
from$276
23:59 — 16:59
+1 day
23:59 — 06:00 UA2019 United Airlines
Seattle — Chicago
8h 10m stop
14:10 — 16:59 UA5379 United Airlines
Chicago — Knoxville
14h
including layover
Find flight
from$259
23:59 — 22:36
+1 day
23:59 — 06:00 UA2019 United Airlines
Seattle — Chicago
13h 51m stop
19:51 — 22:36 UA1156 United Airlines
Chicago — Knoxville
19h 37m
including layover
Find flight
from$259
05:30 — 21:18
05:30 — 07:55 NK176 Spirit Airlines
Seattle — Las Vegas
2h 15m stop
10:10 — 12:28 NK2007 Spirit Airlines
Las Vegas — Phoenix
3h 26m stop
15:54 — 21:18 G41408 Allegiant Air
Phoenix — Knoxville
12h 48m
including layover
Find flight
from$186
06:15 — 23:30
06:15 — 09:02 UA1571 United Airlines
Seattle — Los Angeles
1h 14m stop
10:15 — 15:36 UA1571 United Airlines
Los Angeles — Houston
4h 41m stop
20:28 — 23:46 UA4810 United Airlines
Houston — Knoxville
14h 15m
including layover
Find flight
from$425
06:15 — 20:02
06:15 — 09:02 UA1571 United Airlines
Seattle — Los Angeles
1h 14m stop
10:15 — 15:36 UA1571 United Airlines
Los Angeles — Houston
1h 13m stop
16:45 — 20:03 UA4900 United Airlines
Houston — Knoxville
10h 47m
including layover
Find flight
from$474
07:00 — 10:39
+1 day
07:00 — 13:23 UA1788 United Airlines
Seattle — Houston
3h 17m stop
16:40 — 20:40 UA1788 United Airlines
Houston — Washington D.C.
12h 5m stop
08:45 — 10:39 UA4257 United Airlines
Washington D.C. — Knoxville
24h 39m
including layover
Find flight
from$337
07:00 — 14:43
+1 day
07:00 — 13:23 UA1788 United Airlines
Seattle — Houston
3h 17m stop
16:40 — 20:40 UA1788 United Airlines
Houston — Washington D.C.
16h 15m stop
12:55 — 14:43 UA4251 United Airlines
Washington D.C. — Knoxville
28h 43m
including layover
Find flight
from$337
18:37 — 13:05
+1 day
18:37 — 21:11 NK782 Spirit Airlines
Seattle — Las Vegas
2h 34m stop
23:45 — 07:22 NK1853 Spirit Airlines
Las Vegas — Sanford
4h 5m stop
11:27 — 13:05 G43057 Allegiant Air
Sanford — Knoxville
15h 28m
including layover
Find flight
from$242
18:37 — 12:38
+1 day
18:37 — 21:11 NK782 Spirit Airlines
Seattle — Las Vegas
1h stop
22:11 — 05:56 NK954 Spirit Airlines
Las Vegas — Miami
4h 33m stop
10:29 — 12:38 G41428 Allegiant Air
Miami — Knoxville
15h 1m
including layover
Find flight
from$262
*Departure and arrival times - local. Updated on January 7, 2025

Flight Information

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

Distance between Seattle and Knoxville is 3395 miles. Time difference between the cities is 3h. Airplanes depart 05:02 to 23:59 from 3 Seattle airports and arrive 05:02 to 23:59 to 1 Knoxville airport. Average flight time is 11h 10m.

  • The fastest flight 6h 44m
  • Average flight time 11h 10m
  • The earliest flight 05:02
  • The latest flight 23:59
  • Distance 2110 ml

The cheapest months to travel to Knoxville are november (from 64 $), january (from 186 $), february (from 242 $).

The most expensive months are december (from 308 $), february (from 242 $), january (from 186 $).

What is the lowest airfare Seattle to Knoxville?

The cheapest plane ticket found by our users is $186. This airfare is for economy class on one-way NK176 flight by Spirit Airlines for January 12, 2025 which leaves Seattle-Tacoma Intl in Seattle at 05:30 am and arrives at Knoxville Mc Ghee Tyson at 21:18.

Economy class
$186
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Seattle — Knoxville is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 17 departures per week at the price of from $ 431 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 641.

Direct flights

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

Connecting Flights

There are 46 flights with layovers on the route. The fastest connecting flight is UA423 by United Airlines takes 6h 44m and the cheapest is NK176 by Spirit Airlines for $186.

  • AS - Alaska Airlines
    from $431
    Find
  • F9 - Frontier Airlines
    from $276
    Find
  • UA - United Airlines
    from $259
    Find
  • NK - Spirit Airlines
    from $186
    Find
See more connecting flights

Airports

You can fly from Seattle to Knoxville from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $186
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

Knoxville airports

  • Mc Ghee Tyson-TYS
    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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