Cheap Flights from Knoxville, TN to Seattle, WA from $84
Return flight: Seattle – Knoxville
On Cheapflightsplus.com you will find 359 connecting flights from Knoxville to Seattle. You can compare airfare deals from 4 airlines and multiple travel sites from $84, 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: $84 (one-way), $144 (round-trip).
Direct flights
Check prices for return flight
Best Flights from Knoxville to Seattle Today
Take a look at the list of non stop flights and flights with layovers from Knoxville to Seattle with the lowest price of $84. Take a look at the list of flights with layovers from Knoxville to Seattle from $84. There’re no direct flights. The fastest connecting flight – 7h 16m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $84 | 17:30 Knoxville Mc Ghee Tyson | 00:37+1 день Seattle Seattle-Tacoma Intl | 10h 7m layover 3h 28m - Denver | Frontier Airlines | F94369 F93405 |
| from $141 | 14:28 Knoxville Mc Ghee Tyson | 16:25+1 день Seattle Seattle-Tacoma Intl | 28h 57m layover 22h 5m - Las Vegas | Allegiant Air | G444 NK1681 |
| from $155 | 14:29 Knoxville Mc Ghee Tyson | 15:53+1 день Seattle Seattle-Tacoma Intl | 28h 24m layover 21h 17m - Las Vegas | Allegiant Air | G443 NK781 |
| from $160 | 06:20 Knoxville Mc Ghee Tyson | 22:51 Seattle Seattle-Tacoma Intl | 19h 31m layover 13h 22m - Minneapolis | Allegiant Air | G41425 SY289 |
| from $160 | 06:20 Knoxville Mc Ghee Tyson | 09:21+1 день Seattle Seattle-Tacoma Intl | 30h 1m layover 23h 52m - Minneapolis | Allegiant Air | G41425 SY281 |
| from $173 | 11:01 Knoxville Mc Ghee Tyson | 12:16+1 день Seattle Seattle-Tacoma Intl | 28h 15m layover 22h 11m - Minneapolis | Allegiant Air | G41414 SY283 |
| from $185 | 11:01 Knoxville Mc Ghee Tyson | 22:47 Seattle Seattle-Tacoma Intl | 14h 46m layover 8h 41m - Minneapolis | Allegiant Air | G43064 SY289 |
| from $197 | 10:59 Knoxville Mc Ghee Tyson | 22:50 Seattle Seattle-Tacoma Intl | 14h 51m layover 8h 42m - Minneapolis | Allegiant Air | G43024 SY289 |
| from $197 | 11:01 Knoxville Mc Ghee Tyson | 09:24+1 день Seattle Seattle-Tacoma Intl | 25h 23m layover 19h 13m - Minneapolis | Allegiant Air | G43064 SY283 |
| from $197 | 11:01 Knoxville Mc Ghee Tyson | 10:44+1 день Seattle Seattle-Tacoma Intl | 26h 43m layover 20h 35m - Minneapolis | Allegiant Air | G43064 SY1637 |
| from $160 | 06:55 Knoxville Mc Ghee Tyson | 16:25+1 день Seattle Seattle-Tacoma Intl | 36h 30m layover 8h 19m - Austin 19h 57m - Las Vegas | Allegiant Air | G41410 NK1656 NK1681 |
| from $163 | 06:00 Knoxville Mc Ghee Tyson | 14:25 Seattle Seattle-Tacoma Intl | 11h 25m layover 2h 29m - Phoenix 1h 8m - Las Vegas | Allegiant Air | G41424 NK2356 NK2327 |
| from $165 | 12:45 Knoxville Mc Ghee Tyson | 15:53+1 день Seattle Seattle-Tacoma Intl | 30h 8m layover 17h 37m - Baltimore 3h 9m - Las Vegas | Allegiant Air | G41397 NK2377 NK781 |
| from $168 | 12:45 Knoxville Mc Ghee Tyson | 14:25+1 день Seattle Seattle-Tacoma Intl | 28h 40m layover 16h 54m - Baltimore 2h 15m - Las Vegas | Allegiant Air | G41397 NK2015 NK2327 |
| from $175 | 17:01 Knoxville Mc Ghee Tyson | 00:10+2 дня Seattle Seattle-Tacoma Intl | 34h 9m layover 20h 34m - Houston 5h 35m - Las Vegas | Allegiant Air | G43036 NK2381 NK2625 |
| from $187 | 06:38 Knoxville Mc Ghee Tyson | 14:25+1 день Seattle Seattle-Tacoma Intl | 34h 47m layover 12h 13m - Austin 14h 31m - Las Vegas | Allegiant Air | G41410 NK2628 NK2327 |
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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on August 08, 2025
Flight Schedule Knoxville (Tennessee) to Seattle (Washington)
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 |
|---|---|---|---|---|
|
05:45 — 11:35
|
05:45 — 07:26
UA4311
United Airlines
Knoxville — Washington D.C.
1h 19m stop
08:45 — 11:35
UA1366
United Airlines
Washington D.C. — Seattle
|
8h 50m including layover |
Find flight
from$305 |
|
|
05:45 — 11:50
|
05:45 — 07:26
UA4311
United Airlines
Knoxville — Washington D.C.
1h 34m stop
09:00 — 11:50
UA1734
United Airlines
Washington D.C. — Seattle
|
9h 5m including layover |
Find flight
from$306 |
|
|
06:20 — 22:51
|
06:20 — 07:44
G41425
Allegiant Air
Knoxville — Minneapolis
13h 22m stop
21:06 — 22:51
SY289
Sun Country Airlines
Minneapolis — Seattle
|
19h 31m including layover |
Find flight
from$160 |
|
|
06:20 — 09:21
+1 day
|
06:20 — 07:44
G41425
Allegiant Air
Knoxville — Minneapolis
23h 52m stop
07:36 — 09:21
SY281
Sun Country Airlines
Minneapolis — Seattle
|
30h 1m including layover |
Find flight
from$160 |
|
|
07:00 — 11:32
|
07:00 — 07:57
UA1594
United Airlines
Knoxville — Chicago
48m stop
08:45 — 11:32
UA1414
United Airlines
Chicago — Seattle
|
7h 32m including layover |
Find flight
from$305 |
|
|
07:00 — 12:49
|
07:00 — 08:24
UA4913
United Airlines
Knoxville — Houston
1h 36m stop
10:00 — 12:49
UA584
United Airlines
Houston — Seattle
|
8h 49m including layover |
Find flight
from$305 |
|
|
09:35 — 17:14
|
09:35 — 10:59
UA4841
United Airlines
Knoxville — Houston
3h 26m stop
16:25 — 19:14
UA774
United Airlines
Houston — Seattle
|
10h 39m including layover |
Find flight
from$351 |
|
|
09:55 — 15:38
|
09:55 — 11:36
UA4325
United Airlines
Knoxville — Washington D.C.
1h 14m stop
12:50 — 15:38
UA1395
United Airlines
Washington D.C. — Seattle
|
8h 43m including layover |
Find flight
from$350 |
|
|
10:59 — 22:50
|
10:59 — 12:18
G43024
Allegiant Air
Knoxville — Minneapolis
8h 42m stop
21:00 — 22:50
SY289
Sun Country Airlines
Minneapolis — Seattle
|
14h 51m including layover |
Find flight
from$197 |
|
|
10:59 — 11:02
+1 day
|
10:59 — 12:18
G43024
Allegiant Air
Knoxville — Minneapolis
20h 54m stop
09:12 — 11:02
SY283
Sun Country Airlines
Minneapolis — Seattle
|
27h 3m including layover |
Find flight
from$197 |
|
|
11:01 — 12:16
+1 day
|
11:01 — 12:19
G41414
Allegiant Air
Knoxville — Minneapolis
22h 11m stop
10:30 — 12:16
SY283
Sun Country Airlines
Minneapolis — Seattle
|
28h 15m including layover |
Find flight
from$173 |
|
|
11:01 — 22:47
|
11:01 — 12:19
G43064
Allegiant Air
Knoxville — Minneapolis
8h 41m stop
21:00 — 22:47
SY289
Sun Country Airlines
Minneapolis — Seattle
|
14h 46m including layover |
Find flight
from$185 |
|
|
12:00 — 19:14
|
12:00 — 13:27
UA4302
United Airlines
Knoxville — Houston
2h 58m stop
16:25 — 19:14
UA382
United Airlines
Houston — Seattle
|
10h 14m including layover |
Find flight
from$393 |
|
|
13:56 — 18:53
|
13:56 — 14:58
UA5844
United Airlines
Knoxville — Chicago
1h 15m stop
16:10 — 18:53
UA2278
United Airlines
Chicago — Seattle
|
7h 57m including layover |
Find flight
from$305 |
|
|
13:58 — 18:58
|
13:58 — 14:59
UA4388
United Airlines
Knoxville — Chicago
1h 16m stop
16:15 — 18:58
UA2278
United Airlines
Chicago — Seattle
|
8h including layover |
Find flight
from$395 |
|
|
14:28 — 16:25
+1 day
|
14:28 — 15:35
G444
Allegiant Air
Knoxville — Las Vegas
22h 5m stop
13:40 — 16:25
NK1681
Spirit Airlines
Las Vegas — Seattle
|
28h 57m including layover |
Find flight
from$141 |
|
|
14:29 — 15:53
+1 day
|
14:29 — 15:53
G443
Allegiant Air
Knoxville — Las Vegas
21h 17m stop
13:10 — 15:53
NK781
Spirit Airlines
Las Vegas — Seattle
|
28h 24m including layover |
Find flight
from$155 |
|
|
16:35 — 08:01
+1 day
|
16:35 — 17:50
UA1787
United Airlines
Knoxville — Denver
12h 10m stop
06:00 — 08:01
UA751
United Airlines
Denver — Seattle
|
18h 26m including layover |
Find flight
from$388 |
|
|
16:52 — 21:08
|
16:52 — 18:08
UA505
United Airlines
Knoxville — Denver
1h 3m stop
19:11 — 21:08
UA299
United Airlines
Denver — Seattle
|
7h 16m including layover |
Find flight
from$307 |
|
|
17:30 — 00:37
+1 day
|
19:30 — 20:46
F94369
Frontier Airlines
Knoxville — Denver
3h 28m stop
18:58 — 21:09
F93405
Frontier Airlines
Denver — Seattle
|
10h 7m including layover |
Find flight
from$84 |
|
|
17:30 — 18:15
+1 day
|
17:30 — 19:01
F94369
Frontier Airlines
Knoxville — Denver
21h 7m stop
16:08 — 18:15
F91175
Frontier Airlines
Denver — Seattle
|
27h 45m including layover |
Find flight
from$140 |
|
|
19:25 — 00:59
+1 day
|
19:25 — 21:03
UA4324
United Airlines
Knoxville — Washington D.C.
1h 6m stop
22:09 — 00:59
UA2136
United Airlines
Washington D.C. — Seattle
|
8h 34m including layover |
Find flight
from$305 |
|
|
19:25 — 20:42
+1 day
|
19:25 — 21:08
UA4324
United Airlines
Knoxville — Washington D.C.
20h 47m stop
17:55 — 20:42
UA326
United Airlines
Washington D.C. — Seattle
|
28h 17m including layover |
Find flight
from$401 |
|
*Departure and arrival times - local. Updated on August 8, 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 05:05 to 21:34 from 1 Knoxville airport and arrive 05:05 to 21:34 to 3 Seattle airports. Average flight time is 17h 49m.
- The fastest flight 7h 16m
- Average flight time 17h 49m
- The earliest flight 05:05
- The latest flight 21:34
- Distance 2110 ml
The cheapest months to travel to Seattle are november (from 84 $), august (from 84 $), may (from 135 $).
The most expensive months are february (from 607 $), january (from 580 $), december (from 526 $).
What is the lowest airfare Knoxville to Seattle?
The cheapest plane ticket found by our users is $84. This airfare is for economy class on one-way F94369 flight by Frontier Airlines for August 13, 2025 which leaves Mc Ghee Tyson in Knoxville at 17:30 am and arrives at Seattle Seattle-Tacoma Intl at 00:37.
Economy class
$84
Business class
?
First class
?
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 - 43 departures per week at the price of from $ 351 . And the most expensive tickets are offered by United Airlines airline - from $ 1129.
Direct flights
There’re no direct flights on this route. Try flights with stops.
Connecting Flights
There are 359 flights with layovers on the route. The fastest connecting flight is UA505 by United Airlines takes 7h 16m and the cheapest is F94369 by Frontier Airlines for $84.
- AS - Alaska Airlinesfrom $351Find
- F9 - Frontier Airlinesfrom $84Find
- UA - United Airlinesfrom $305Find
- G4 - Allegiant Airfrom $141Find
See more connecting flights
Airports
You can fly from Knoxville to Seattle from 1 airports (Mc Ghee Tyson).
Knoxville airports
- Mc Ghee Tyson-TYSfrom $84Find
Seattle airports
- Boeing Field International Airport-BFIFind
- Seattle-Tacoma Intl-SEAFind
- Kenmore Air Harbor SPB-LKEFind
Airplanes
There are flights to Seattle from Knoxville by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Knoxville
You may also consider searching for discounted plane tickets to some other popular places from Knoxville within United States.
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Top International Destinations from Knoxville
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane 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.
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