Cheap Flights from Knoxville, TN to Seattle, WA from $63
Return flight: Seattle – Knoxville
On Cheapflightsplus.com you will find 226 connecting flights from Knoxville to Seattle. You can compare airfare deals from 4 airlines and multiple travel sites from $63, 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: $63 (one-way), $108 (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 $63. Take a look at the list of flights with layovers from Knoxville to Seattle from $63. There’re no direct flights. The fastest connecting flight – 7h 18m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $63 | 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 $105 | 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 $115 | 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 $129 | 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 $138 | 11:01 Knoxville Mc Ghee Tyson | 22:47 Seattle Seattle-Tacoma Intl | 14h 46m layover 8h 41m - Minneapolis | Allegiant Air | G43064 SY289 |
| from $147 | 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 $147 | 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 $159 | 11:01 Knoxville Mc Ghee Tyson | 17:05 Seattle Seattle-Tacoma Intl | 9h 4m layover 2h 59m - Minneapolis | Allegiant Air | G43064 SY285 |
| from $119 | 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 $123 | 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 $147 | 11:01 Knoxville Mc Ghee Tyson | 15:03+1 день Seattle Seattle-Tacoma Intl | 31h 2m layover 19h 41m - Minneapolis 2h 55m - Las Vegas | Allegiant Air | G43064 SY103 NK2327 |
| from $151 | 17:02 Knoxville Mc Ghee Tyson | 16:25+1 день Seattle Seattle-Tacoma Intl | 26h 23m layover 12h 47m - Houston 5h 26m - Las Vegas | Allegiant Air | G41437 NK1139 NK1681 |
| from $156 | 11:01 Knoxville Mc Ghee Tyson | 15:03+1 день Seattle Seattle-Tacoma Intl | 31h 2m layover 4h 5m - Minneapolis 18h 31m - Las Vegas | Allegiant Air | G43064 SY107 NK2327 |
| from $166 | 06:00 Knoxville Mc Ghee Tyson | 07:59+1 день Seattle Seattle-Tacoma Intl | 28h 59m layover 17h 10m - Phoenix 1h 10m - Minneapolis | Allegiant Air | G41420 SY610 SY281 |
| from $168 | 12:45 Knoxville Mc Ghee Tyson | 17:11+1 день Seattle Seattle-Tacoma Intl | 31h 26m layover 22h 17m - Washington D.C. 1h 6m - Minneapolis | Allegiant Air | G41397 SY224 SY285 |
| from $170 | 08:00 Knoxville Mc Ghee Tyson | 07:59+1 день Seattle Seattle-Tacoma Intl | 26h 59m layover 9h 41m - Fort Walton Beach 9h 20m - Minneapolis | Allegiant Air | G41398 SY1814 SY281 |
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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 25, 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 — 11:50
|
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$228 |
|
|
05:45 — 00:56
+1 day
|
05:45 — 07:26
UA4311
United Airlines
Knoxville — Washington D.C.
14h 40m stop
22:06 — 00:56
UA716
United Airlines
Washington D.C. — Seattle
|
22h 11m including layover |
Find flight
from$282 |
|
|
07:00 — 12:46
|
07:00 — 08:24
UA4913
United Airlines
Knoxville — Houston
1h 33m stop
09:57 — 12:46
UA2606
United Airlines
Houston — Seattle
|
8h 46m including layover |
Find flight
from$228 |
|
|
07:00 — 23:59
|
07:00 — 07:57
UA1594
United Airlines
Knoxville — Chicago
13h 19m stop
21:16 — 23:59
UA1001
United Airlines
Chicago — Seattle
|
19h 59m including layover |
Find flight
from$303 |
|
|
08:06 — 12:34
|
07:35 — 08:39
AS6872
Alaska Airlines
Knoxville — Chicago
55m stop
10:00 — 12:34
AS329
Alaska Airlines
Chicago — Seattle
|
7h 28m including layover |
Find flight
from$348 |
|
|
08:08 — 12:34
|
08:08 — 09:07
AS4463
Alaska Airlines
Knoxville — Chicago
53m stop
10:00 — 12:34
AS329
Alaska Airlines
Chicago — Seattle
|
7h 26m including layover |
Find flight
from$350 |
|
|
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$262 |
|
|
09:55 — 00:56
+1 day
|
09:55 — 11:35
UA4325
United Airlines
Knoxville — Washington D.C.
10h 31m stop
22:06 — 00:56
UA716
United Airlines
Washington D.C. — Seattle
|
18h 1m including layover |
Find flight
from$282 |
|
|
10:54 — 18:49
|
10:50 — 11:53
UA5921
United Airlines
Knoxville — Chicago
4h 12m stop
16:10 — 18:53
UA2278
United Airlines
Chicago — Seattle
|
10h 55m including layover |
Find flight
from$306 |
|
|
10:55 — 23:59
|
10:55 — 11:58
UA5921
United Airlines
Knoxville — Chicago
9h 18m stop
21:16 — 23:59
UA1001
United Airlines
Chicago — Seattle
|
16h 4m including layover |
Find flight
from$306 |
|
|
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$129 |
|
|
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$138 |
|
|
12:00 — 17:14
|
12:00 — 13:27
UA4302
United Airlines
Knoxville — Houston
58m stop
16:25 — 19:14
UA774
United Airlines
Houston — Seattle
|
8h 14m including layover |
Find flight
from$294 |
|
|
13:56 — 23:59
|
13:56 — 14:55
UA5844
United Airlines
Knoxville — Chicago
6h 21m stop
21:16 — 23:59
UA1001
United Airlines
Chicago — Seattle
|
13h 3m including layover |
Find flight
from$306 |
|
|
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$294 |
|
|
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$105 |
|
|
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$115 |
|
|
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$289 |
|
|
16:40 — 09:57
+1 day
|
16:40 — 17:52
UA2745
United Airlines
Knoxville — Denver
14h 8m stop
08:00 — 09:57
UA2271
United Airlines
Denver — Seattle
|
20h 17m including layover |
Find flight
from$294 |
|
|
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$63 |
|
|
17:46 — 09:50
+1 day
|
17:46 — 18:50
UA5767
United Airlines
Knoxville — Chicago
12h 20m stop
07:10 — 09:50
UA1643
United Airlines
Chicago — Seattle
|
19h 4m including layover |
Find flight
from$306 |
|
|
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$299 |
|
|
19:25 — 15:51
+1 day
|
19:25 — 21:08
UA4324
United Airlines
Knoxville — Washington D.C.
15h 57m stop
13:05 — 15:51
UA1914
United Airlines
Washington D.C. — Seattle
|
23h 26m including layover |
Find flight
from$332 |
|
*Departure and arrival times - local. Updated on June 25, 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 05:45 to 21:30 from 1 Knoxville airport and arrive 05:45 to 21:30 to 3 Seattle airports. Average flight time is 17h 56m.
- The fastest flight 7h 18m
- Average flight time 17h 56m
- The earliest flight 05:45
- The latest flight 21:30
- Distance 2110 ml
The cheapest months to travel to Seattle are november (from 84 $), july (from 84 $), may (from 134 $).
The most expensive months are january (from 577 $), december (from 524 $), october (from 281 $).
What is the lowest airfare Knoxville to Seattle?
The cheapest plane ticket found by our users is $63. This airfare is for economy class on one-way F94369 flight by Frontier Airlines for July 2, 2025 which leaves Mc Ghee Tyson in Knoxville at 17:30 am and arrives at Seattle Seattle-Tacoma Intl at 00:37.
Economy class
$63
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 - 24 departures per week at the price of from $ 348 . And the most expensive tickets are offered by United Airlines airline - from $ 535.
Direct flights
There’re no direct flights on this route. Try flights with stops.
Connecting Flights
There are 226 flights with layovers on the route. The fastest connecting flight is UA5673 by United Airlines takes 7h 18m and the cheapest is F94369 by Frontier Airlines for $63.
- AS - Alaska Airlinesfrom $348Find
- F9 - Frontier Airlinesfrom $63Find
- UA - United Airlinesfrom $228Find
- G4 - Allegiant Airfrom $105Find
See more connecting flights
Airports
You can fly from Knoxville to Seattle from 1 airports (Mc Ghee Tyson).
Knoxville airports
- Mc Ghee Tyson-TYSfrom $63Find
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.
- from $69Find
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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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