Cheap Flights from Seattle, WA to Knoxville, TN from $114
Return flight: Knoxville – Seattle
On Cheapflightsplus.com you will find 261 connecting flights from Seattle to Knoxville. You can compare airfare deals from 6 airlines and multiple travel sites from $114, 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: $114 (one-way), $195 (round-trip).
Direct flights
Check prices for return flight
Best Flights from Seattle to Knoxville Today
Take a look at the list of non stop flights and flights with layovers from Seattle to Knoxville with the lowest price of $114. Take a look at the list of flights with layovers from Seattle to Knoxville from $114. There’re no direct flights. The fastest connecting flight – 6h 33m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $114 | 18:42 Seattle Seattle-Tacoma Intl | 16:12+1 день Knoxville Mc Ghee Tyson | 18h 30m layover 13h 10m - Minneapolis | Sun Country Airlines | SY286 G43063 |
| from $135 | 16:58 Seattle Seattle-Tacoma Intl | 16:00+1 день Knoxville Mc Ghee Tyson | 20h 2m layover 13h 29m - Las Vegas | Spirit Airlines | NK782 G462 |
| from $136 | 06:25 Seattle Seattle-Tacoma Intl | 16:29 Knoxville Mc Ghee Tyson | 7h 4m layover 1h 27m - Denver | Frontier Airlines | F93406 F92374 |
| from $154 | 15:58 Seattle Seattle-Tacoma Intl | 13:38+1 день Knoxville Mc Ghee Tyson | 18h 40m layover 12h 19m - Las Vegas | Spirit Airlines | NK2328 G47 |
| from $175 | 08:12 Seattle Seattle-Tacoma Intl | 16:12+1 день Knoxville Mc Ghee Tyson | 29h 0m layover 23h 39m - Minneapolis | Sun Country Airlines | SY1638 G43062 |
| from $178 | 12:53 Seattle Seattle-Tacoma Intl | 16:12+1 день Knoxville Mc Ghee Tyson | 24h 19m layover 18h 59m - Minneapolis | Sun Country Airlines | SY1986 G43063 |
| from $144 | 17:30 Seattle Seattle-Tacoma Intl | 17:12+1 день Knoxville Mc Ghee Tyson | 20h 42m layover 4h 36m - Las Vegas 8h 43m - Chicago | Spirit Airlines | NK1682 NK1053 G41430 |
| from $153 | 23:59 Seattle Seattle-Tacoma Intl | 22:15+1 день Knoxville Mc Ghee Tyson | 19h 16m layover 2h 35m - Minneapolis 9h 17m - Jacksonville | Sun Country Airlines | SY290 SY325 G41440 |
| from $164 | 15:58 Seattle Seattle-Tacoma Intl | 17:20+1 день Knoxville Mc Ghee Tyson | 22h 22m layover 6h 18m - Las Vegas 8h 42m - Chicago | Spirit Airlines | NK2328 NK2186 G43046 |
| from $170 | 15:58 Seattle Seattle-Tacoma Intl | 17:18+1 день Knoxville Mc Ghee Tyson | 22h 20m layover 6h 18m - Las Vegas 8h 41m - Chicago | Spirit Airlines | NK2328 NK2186 G43025 |
| from $171 | 09:10 Seattle Seattle-Tacoma Intl | 22:15+1 день Knoxville Mc Ghee Tyson | 34h 5m layover 17h 23m - Minneapolis 9h 17m - Jacksonville | Sun Country Airlines | SY282 SY325 G41440 |
| from $172 | 09:10 Seattle Seattle-Tacoma Intl | 16:47+1 день Knoxville Mc Ghee Tyson | 28h 37m layover 18h 47m - Minneapolis 2h 42m - Washington D.C. | Sun Country Airlines | SY282 SY1693 G41398 |
| from $175 | 09:10 Seattle Seattle-Tacoma Intl | 17:12+1 день Knoxville Mc Ghee Tyson | 29h 2m layover 3h 5m - Minneapolis 19h 35m - Chicago | Sun Country Airlines | SY282 SY261 G41430 |
| from $176 | 13:50 Seattle Seattle-Tacoma Intl | 13:43+1 день Knoxville Mc Ghee Tyson | 20h 53m layover 0h 49m - Minneapolis 11h 52m - Denver | Sun Country Airlines | SY284 SY1609 G41407 |
| from $176 | 15:58 Seattle Seattle-Tacoma Intl | 16:11+1 день Knoxville Mc Ghee Tyson | 21h 13m layover 5h 33m - Las Vegas 8h 2m - Minneapolis | Spirit Airlines | NK2328 SY778 G43063 |
| from $183 | 15:58 Seattle Seattle-Tacoma Intl | 08:04+1 день Knoxville Mc Ghee Tyson | 13h 6m layover 2h 48m - Las Vegas 1h 5m - Miami | Spirit Airlines | NK2328 NK954 G4503 |
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 25, 2025
Flight Schedule Seattle (Washington) to Knoxville (Tennessee)
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 |
|---|---|---|---|---|
|
00:20 — 10:17
|
00:20 — 06:28
UA1832
United Airlines
Seattle — Chicago
57m stop
07:25 — 10:17
UA5726
United Airlines
Chicago — Knoxville
|
6h 57m including layover |
Find flight
from$226 |
|
|
00:20 — 17:05
|
00:20 — 06:28
UA1832
United Airlines
Seattle — Chicago
7h 40m stop
14:08 — 17:05
UA5429
United Airlines
Chicago — Knoxville
|
13h 45m including layover |
Find flight
from$329 |
|
|
05:00 — 18:11
|
05:00 — 11:19
UA1668
United Airlines
Seattle — Houston
3h 26m stop
14:45 — 18:11
UA4890
United Airlines
Houston — Knoxville
|
10h 11m including layover |
Find flight
from$226 |
|
|
05:00 — 22:22
|
05:00 — 08:43
UA2269
United Airlines
Seattle — Denver
8h 37m stop
17:20 — 22:22
UA4774
United Airlines
Denver — Knoxville
|
14h 22m including layover |
Find flight
from$243 |
|
|
06:00 — 18:38
|
06:00 — 12:07
HA6816
Hawaiian Airlines
Seattle — Chicago
3h 39m stop
15:46 — 18:38
UA454
United Airlines
Chicago — Knoxville
|
9h 38m including layover |
Find flight
from$319 |
|
|
06:25 — 16:29
|
06:25 — 10:16
F93406
Frontier Airlines
Seattle — Denver
1h 27m stop
11:41 — 16:35
F92374
Frontier Airlines
Denver — Knoxville
|
7h 4m including layover |
Find flight
from$136 |
|
|
07:00 — 17:05
|
07:00 — 13:14
UA1617
United Airlines
Seattle — Chicago
54m stop
14:08 — 17:05
UA5429
United Airlines
Chicago — Knoxville
|
7h 5m including layover |
Find flight
from$226 |
|
|
07:00 — 18:38
|
07:00 — 13:14
UA1617
United Airlines
Seattle — Chicago
2h 32m stop
15:46 — 18:38
UA454
United Airlines
Chicago — Knoxville
|
8h 38m including layover |
Find flight
from$226 |
|
|
08:12 — 16:12
+1 day
|
08:12 — 13:30
SY1638
Sun Country Airlines
Seattle — Minneapolis
23h 39m stop
13:09 — 16:12
G43062
Allegiant Air
Minneapolis — Knoxville
|
29h including layover |
Find flight
from$175 |
|
|
08:57 — 22:22
|
08:57 — 12:43
UA1359
United Airlines
Seattle — Denver
4h 37m stop
17:20 — 22:22
UA4774
United Airlines
Denver — Knoxville
|
10h 25m including layover |
Find flight
from$303 |
|
|
09:06 — 16:12
+1 day
|
09:06 — 14:24
SY282
Sun Country Airlines
Seattle — Minneapolis
22h 45m stop
13:09 — 16:12
G43062
Allegiant Air
Minneapolis — Knoxville
|
28h 6m including layover |
Find flight
from$298 |
|
|
09:15 — 16:11
+1 day
|
09:15 — 14:30
SY282
Sun Country Airlines
Seattle — Minneapolis
22h 38m stop
13:08 — 16:11
G43063
Allegiant Air
Minneapolis — Knoxville
|
27h 56m including layover |
Find flight
from$251 |
|
|
10:55 — 10:13
+1 day
|
10:55 — 17:10
UA2671
United Airlines
Seattle — Chicago
14h 8m stop
07:18 — 10:13
UA5726
United Airlines
Chicago — Knoxville
|
20h 18m including layover |
Find flight
from$302 |
|
|
10:55 — 13:25
+1 day
|
10:55 — 17:10
UA2671
United Airlines
Seattle — Chicago
17h 25m stop
10:35 — 13:25
UA4194
United Airlines
Chicago — Knoxville
|
23h 30m including layover |
Find flight
from$302 |
|
|
11:11 — 15:15
+1 day
|
11:11 — 14:58
UA1049
United Airlines
Seattle — Denver
19h 27m stop
10:25 — 15:15
UA1631
United Airlines
Denver — Knoxville
|
25h 4m including layover |
Find flight
from$342 |
|
|
12:43 — 22:30
|
11:11 — 14:58
UA1969
United Airlines
Seattle — Denver
58m stop
17:20 — 22:22
UA4774
United Airlines
Denver — Knoxville
|
6h 47m including layover |
Find flight
from$259 |
|
|
12:53 — 16:12
+1 day
|
12:53 — 18:10
SY1986
Sun Country Airlines
Seattle — Minneapolis
18h 59m stop
13:09 — 16:12
G43063
Allegiant Air
Minneapolis — Knoxville
|
24h 19m including layover |
Find flight
from$178 |
|
|
13:55 — 10:13
+1 day
|
13:55 — 20:10
UA1298
United Airlines
Seattle — Chicago
11h 8m stop
07:18 — 10:13
UA5726
United Airlines
Chicago — Knoxville
|
17h 18m including layover |
Find flight
from$302 |
|
|
13:55 — 13:25
+1 day
|
13:55 — 20:10
UA1298
United Airlines
Seattle — Chicago
14h 25m stop
10:35 — 13:25
UA4194
United Airlines
Chicago — Knoxville
|
20h 30m including layover |
Find flight
from$302 |
|
|
14:24 — 15:04
+1 day
|
14:24 — 18:15
UA2859
United Airlines
Seattle — Denver
16h stop
10:15 — 15:04
UA2420
United Airlines
Denver — Knoxville
|
21h 40m including layover |
Find flight
from$303 |
|
|
15:45 — 15:04
+1 day
|
15:45 — 19:36
UA1747
United Airlines
Seattle — Denver
14h 39m stop
10:15 — 15:04
UA2420
United Airlines
Denver — Knoxville
|
20h 19m including layover |
Find flight
from$303 |
|
|
15:58 — 13:38
+1 day
|
15:20 — 17:51
NK2328
Spirit Airlines
Seattle — Las Vegas
12h 19m stop
06:25 — 13:24
G47
Allegiant Air
Las Vegas — Knoxville
|
18h 40m including layover |
Find flight
from$154 |
|
|
16:55 — 13:25
+1 day
|
16:55 — 22:55
UA1951
United Airlines
Seattle — Chicago
11h 40m stop
10:35 — 13:25
UA4194
United Airlines
Chicago — Knoxville
|
17h 30m including layover |
Find flight
from$302 |
|
|
16:58 — 16:00
+1 day
|
16:58 — 19:36
NK782
Spirit Airlines
Seattle — Las Vegas
13h 29m stop
09:05 — 16:00
G462
Allegiant Air
Las Vegas — Knoxville
|
20h 2m including layover |
Find flight
from$135 |
|
|
17:23 — 17:05
+1 day
|
17:23 — 23:30
UA1951
United Airlines
Seattle — Chicago
14h 38m stop
14:08 — 17:05
UA5429
United Airlines
Chicago — Knoxville
|
20h 42m including layover |
Find flight
from$329 |
|
|
17:30 — 13:38
+1 day
|
17:30 — 19:58
NK1682
Spirit Airlines
Seattle — Las Vegas
10h 47m stop
06:45 — 13:38
G47
Allegiant Air
Las Vegas — Knoxville
|
17h 8m including layover |
Find flight
from$161 |
|
|
18:27 — 16:12
+1 day
|
18:27 — 23:47
SY286
Sun Country Airlines
Seattle — Minneapolis
13h 22m stop
13:09 — 16:12
G43062
Allegiant Air
Minneapolis — Knoxville
|
18h 45m including layover |
Find flight
from$226 |
|
|
18:42 — 16:12
+1 day
|
18:18 — 23:35
SY286
Sun Country Airlines
Seattle — Minneapolis
13h 10m stop
13:08 — 16:11
G43063
Allegiant Air
Minneapolis — Knoxville
|
18h 30m including layover |
Find flight
from$114 |
|
|
19:02 — 22:22
+1 day
|
19:00 — 22:40
UA1218
United Airlines
Seattle — Denver
18h 27m stop
17:28 — 22:30
UA4774
United Airlines
Denver — Knoxville
|
24h 20m including layover |
Find flight
from$297 |
|
|
19:48 — 16:29
+1 day
|
19:48 — 23:40
F91176
Frontier Airlines
Seattle — Denver
12h 1m stop
11:41 — 16:29
F92374
Frontier Airlines
Denver — Knoxville
|
17h 41m including layover |
Find flight
from$218 |
|
|
22:55 — 20:56
+1 day
|
22:55 — 06:58
UA684
United Airlines
Seattle — Washington D.C.
12h 12m stop
19:10 — 20:56
UA4914
United Airlines
Washington D.C. — Knoxville
|
19h 1m including layover |
Find flight
from$347 |
|
|
23:59 — 16:12
+1 day
|
23:59 — 05:16
SY290
Sun Country Airlines
Seattle — Minneapolis
7h 53m stop
13:09 — 16:12
G43062
Allegiant Air
Minneapolis — Knoxville
|
13h 13m including layover |
Find flight
from$124 |
|
|
23:59 — 16:11
+1 day
|
23:59 — 05:13
SY290
Sun Country Airlines
Seattle — Minneapolis
7h 55m stop
13:08 — 16:11
G43063
Allegiant Air
Minneapolis — Knoxville
|
13h 12m including layover |
Find flight
from$141 |
|
*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 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 00:20 to 23:59 from 3 Seattle airports and arrive 00:20 to 23:59 to 1 Knoxville airport. Average flight time is 18h 16m.
- The fastest flight 6h 33m
- Average flight time 18h 16m
- The earliest flight 00:20
- The latest flight 23:59
- Distance 2110 ml
The cheapest months to travel to Knoxville are june (from 142 $), may (from 144 $), august (from 153 $).
The most expensive months are november (from 669 $), january (from 474 $), february (from 467 $).
What is the lowest airfare Seattle to Knoxville?
The cheapest plane ticket found by our users is $114. This airfare is for economy class on one-way SY286 flight by Sun Country Airlines for August 7, 2025 which leaves Seattle-Tacoma Intl in Seattle at 18:42 am and arrives at Knoxville Mc Ghee Tyson at 16:12.
Economy class
$114
Business class
?
First class
?
Popular Airlines on the Route
The flight Seattle — Knoxville is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 30 departures per week at the price of from $ 348 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 966.
Direct flights
There’re no direct flights on this route. Try flights with stops.
Connecting Flights
There are 261 flights with layovers on the route. The fastest connecting flight is UA757 by United Airlines takes 6h 33m and the cheapest is SY286 by Sun Country Airlines for $114.
- AS - Alaska Airlinesfrom $348Find
- F9 - Frontier Airlinesfrom $136Find
- SY - Sun Country Airlinesfrom $114Find
- HA - Hawaiian Airlinesfrom $319Find
- UA - United Airlinesfrom $226Find
- NK - Spirit Airlinesfrom $135Find
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-BFIFind
- Seattle-Tacoma Intl-SEAfrom $114Find
- Kenmore Air Harbor SPB-LKEFind
Knoxville airports
- Mc Ghee Tyson-TYSFind
Airplanes
There are flights to Knoxville from Seattle by 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
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Top International Destinations from Seattle
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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