Cheap Flights from Denver, CO to Seattle, WA from $33
On Cheapflightsplus.com you will find 24 direct and 408 connecting flights from Denver to Seattle. You can compare airfare deals from 8 airlines and multiple travel sites from $33, book and save on cheap plane tickets and last minute offers. Also check out DEN-SEA flight schedule to find best flight time, convenient departure and arrival airports.
Find One-Way and Round-Trip Denver to Seattle Flight Deals
Best Flights from Denver to Seattle Today
Price | Departure | Arrival | Flight Duration | Airline | Flight |
---|---|---|---|---|---|
from $33 | 06:35 Denver Denver International | 08:37 Seattle Seattle-Tacoma Intl | 3h 2m | Frontier Airlines | F91175 |
from $60 | 19:08 Denver Denver International | 21:11 Seattle Seattle-Tacoma Intl | 3h 3m | Frontier Airlines | F93405 |
from $65 | 13:57 Denver Denver International | 16:00 Seattle Seattle-Tacoma Intl | 3h 3m | Alaska Airlines | AS1006 |
from $101 | 07:45 Denver Denver International | 09:53 Seattle Seattle-Tacoma Intl | 3h 8m | United Airlines | UA1399 |
from $102 | 17:08 Denver Denver International | 19:10 Seattle Seattle-Tacoma Intl | 3h 2m | Alaska Airlines | AS615 |
from $113 | 06:05 Denver Denver International | 08:20 Seattle Seattle-Tacoma Intl | 3h 15m | Delta Air Lines Inc. | DL1731 |
from $124 | 13:40 Denver Denver International | 15:58 Seattle Seattle-Tacoma Intl | 3h 18m | Delta Air Lines Inc. | DL2740 |
from $129 | 20:44 Denver Denver International | 22:45 Seattle Seattle-Tacoma Intl | 3h 1m | United Airlines | UA2651 |
from $143 | 11:50 Denver Denver International | 13:54 Seattle Seattle-Tacoma Intl | 3h 4m | United Airlines | UA690 |
from $153 | 15:45 Denver Denver International | 17:49 Seattle Seattle-Tacoma Intl | 3h 4m | Alaska Airlines | AS620 |
from $62 | 08:54 Denver Denver International | 14:15 Seattle Seattle-Tacoma Intl | 6h 21m layover 1h 0m - Ontario | Frontier Airlines | F91261 F93164 |
from $62 | 22:38 Denver Denver International | 10:54+1 день Seattle Seattle-Tacoma Intl | 13h 16m layover 7h 54m - Ontario | Frontier Airlines | F91499 F93164 |
from $64 | 16:59 Denver Denver International | 20:48 Seattle Seattle-Tacoma Intl | 4h 49m layover 0h 53m - Salt Lake City | Frontier Airlines | F94251 F94987 |
from $64 | 08:08 Denver Denver International | 12:50 Seattle Seattle-Tacoma Intl | 5h 42m layover 1h 33m - Salt Lake City | Frontier Airlines | F93981 F94987 |
from $76 | 22:41 Denver Denver International | 08:50+1 день Seattle Seattle-Tacoma Intl | 11h 9m layover 6h 9m - Las Vegas | Frontier Airlines | F94611 F92407 |
from $96 | 18:15 Denver Denver International | 12:53+1 день Seattle Seattle-Tacoma Intl | 19h 38m layover 14h 29m - Ontario | Frontier Airlines | F92907 F93164 |
Flight Schedule Denver (Colorado) to Seattle (Washington)
Departure | Arrival | Flight Details | Flight Duration | Price |
---|---|---|---|---|
06:00 — 08:06
|
06:00 — 08:06
AS643
Alaska Airlines
Denver — Seattle
|
3h 6m |
Find flight
from$112 |
|
06:05 — 08:20
|
06:05 — 08:20
DL1731
Delta Air Lines Inc.
Denver — Seattle
|
3h 15m |
Find flight
from$113 |
|
06:35 — 08:37
|
06:35 — 08:37
F91175
Frontier Airlines
Denver — Seattle
|
3h 2m |
Find flight
from$33 |
|
07:45 — 09:53
|
07:45 — 09:53
UA1399
United Airlines
Denver — Seattle
|
3h 8m |
Find flight
from$101 |
|
07:46 — 09:49
|
07:46 — 09:49
UA204
United Airlines
Denver — Seattle
|
3h 3m |
Find flight
from$129 |
|
10:43 — 12:48
|
10:43 — 12:48
AS681
Alaska Airlines
Denver — Seattle
|
3h 5m |
Find flight
from$116 |
|
11:50 — 13:54
|
11:50 — 13:54
UA690
United Airlines
Denver — Seattle
|
3h 4m |
Find flight
from$143 |
|
11:50 — 13:57
|
11:50 — 13:57
UA2246
United Airlines
Denver — Seattle
|
3h 7m |
Find flight
from$193 |
|
11:50 — 13:57
|
11:50 — 13:57
UA423
United Airlines
Denver — Seattle
|
3h 7m |
Find flight
from$385 |
|
11:55 — 14:00
|
11:55 — 14:00
UA316
United Airlines
Denver — Seattle
|
3h 5m |
Find flight
from$247 |
|
12:38 — 14:45
|
12:38 — 14:45
AS682
Alaska Airlines
Denver — Seattle
|
3h 7m |
Find flight
from$102 |
|
13:40 — 15:58
|
13:40 — 15:58
DL2740
Delta Air Lines Inc.
Denver — Seattle
|
3h 18m |
Find flight
from$124 |
|
13:57 — 16:00
|
13:57 — 16:00
AS1006
Alaska Airlines
Denver — Seattle
|
3h 3m |
Find flight
from$65 |
|
15:45 — 17:49
|
15:45 — 17:49
AS620
Alaska Airlines
Denver — Seattle
|
3h 4m |
Find flight
from$153 |
|
16:01 — 18:03
|
16:01 — 18:03
UA745
United Airlines
Denver — Seattle
|
3h 2m |
Find flight
from$141 |
|
16:04 — 18:09
|
16:04 — 18:09
UA759
United Airlines
Denver — Seattle
|
3h 5m |
Find flight
from$151 |
|
16:27 — 18:34
|
16:27 — 18:34
AS1005
Alaska Airlines
Denver — Seattle
|
3h 7m |
Find flight
from$247 |
|
17:08 — 19:10
|
17:08 — 19:10
AS615
Alaska Airlines
Denver — Seattle
|
3h 2m |
Find flight
from$102 |
|
19:00 — 21:01
|
19:00 — 21:01
UA299
United Airlines
Denver — Seattle
|
3h 1m |
Find flight
from$140 |
|
19:08 — 21:11
|
19:08 — 21:11
F93405
Frontier Airlines
Denver — Seattle
|
3h 3m |
Find flight
from$60 |
|
19:55 — 21:58
|
19:55 — 21:58
AS525
Alaska Airlines
Denver — Seattle
|
3h 3m |
Find flight
from$198 |
|
19:56 — 22:00
|
19:56 — 22:00
AS705
Alaska Airlines
Denver — Seattle
|
3h 4m |
Find flight
from$211 |
|
19:59 — 22:20
|
19:59 — 22:20
DL4094
Delta Air Lines Inc.
Denver — Seattle
|
3h 21m |
Find flight
from$113 |
|
20:44 — 22:45
|
20:44 — 22:45
UA2651
United Airlines
Denver — Seattle
|
3h 1m |
Find flight
from$129 |
|
06:45 — 15:58
|
06:45 — 08:53
F91375
Frontier Airlines
Denver — Phoenix
4h 51m stop
13:44 — 15:58
F93973
Frontier Airlines
Phoenix — Seattle
|
10h 13m including layover |
Find flight
from$65 |
|
07:45 — 15:21
|
07:45 — 09:32
UA2391
United Airlines
Denver — San Francisco
3h 31m stop
13:03 — 15:21
UA2391
United Airlines
San Francisco — Seattle
|
8h 36m including layover |
Find flight
from$107 |
|
08:08 — 12:50
|
08:08 — 09:45
F93981
Frontier Airlines
Denver — Salt Lake City
1h 33m stop
11:18 — 12:50
F94987
Frontier Airlines
Salt Lake City — Seattle
|
5h 42m including layover |
Find flight
from$64 |
|
08:54 — 14:15
|
08:20 — 09:46
F91261
Frontier Airlines
Denver — Ontario
1h stop
07:58 — 10:54
F93164
Frontier Airlines
Ontario — Seattle
|
6h 21m including layover |
Find flight
from$62 |
|
09:15 — 15:25
|
09:06 — 10:55
UA754
United Airlines
Denver — San Francisco
1h 59m stop
13:00 — 15:18
UA2650
United Airlines
San Francisco — Seattle
|
7h 10m including layover |
Find flight
from$128 |
|
09:43 — 15:58
|
09:43 — 11:48
F91819
Frontier Airlines
Denver — Phoenix
1h 56m stop
13:44 — 15:58
F93973
Frontier Airlines
Phoenix — Seattle
|
7h 15m including layover |
Find flight
from$64 |
|
10:15 — 15:45
|
10:15 — 12:04
UA2041
United Airlines
Denver — San Francisco
1h 21m stop
13:25 — 15:45
UA593
United Airlines
San Francisco — Seattle
|
6h 30m including layover |
Find flight
from$152 |
|
12:54 — 19:15
|
12:54 — 15:00
F92141
Frontier Airlines
Denver — Phoenix
2h 1m stop
17:01 — 19:15
F93973
Frontier Airlines
Phoenix — Seattle
|
7h 21m including layover |
Find flight
from$147 |
|
13:39 — 18:37
|
12:24 — 14:20
F92141
Frontier Airlines
Denver — Phoenix
54m stop
15:12 — 17:25
F91723
Frontier Airlines
Phoenix — Seattle
|
5h 58m including layover |
Find flight
from$102 |
|
14:01 — 20:48
|
14:01 — 15:39
F94235
Frontier Airlines
Denver — Salt Lake City
3h 46m stop
19:25 — 20:48
F94987
Frontier Airlines
Salt Lake City — Seattle
|
7h 47m including layover |
Find flight
from$64 |
|
14:10 — 17:51
|
14:10 — 16:01
AS336
Alaska Airlines
Denver — Portland
49m stop
16:50 — 17:51
AS2102
Alaska Airlines
Portland — Seattle
|
4h 41m including layover |
Find flight
from$115 |
|
15:59 — 21:15
|
15:43 — 17:32
UA1300
United Airlines
Denver — San Francisco
1h 5m stop
18:50 — 21:07
UA2019
United Airlines
San Francisco — Seattle
|
6h 16m including layover |
Find flight
from$151 |
|
16:59 — 20:48
|
16:59 — 18:32
F94251
Frontier Airlines
Denver — Salt Lake City
53m stop
19:25 — 20:48
F94987
Frontier Airlines
Salt Lake City — Seattle
|
4h 49m including layover |
Find flight
from$64 |
|
18:15 — 12:53
+1 day
|
18:15 — 19:37
F92907
Frontier Airlines
Denver — Ontario
14h 29m stop
10:06 — 12:53
F93164
Frontier Airlines
Ontario — Seattle
|
19h 38m including layover |
Find flight
from$96 |
|
19:38 — 08:50
+1 day
|
18:33 — 19:37
F94967
Frontier Airlines
Denver — Las Vegas
9h 13m stop
15:32 — 18:26
F92407
Frontier Airlines
Las Vegas — Seattle
|
14h 12m including layover |
Find flight
from$77 |
|
22:38 — 10:54
+1 day
|
22:38 — 00:04
F91499
Frontier Airlines
Denver — Ontario
7h 54m stop
07:58 — 10:54
F93164
Frontier Airlines
Ontario — Seattle
|
13h 16m including layover |
Find flight
from$62 |
|
22:49 — 08:57
+1 day
|
07:00 — 08:07
F9777
Frontier Airlines
Denver — Las Vegas
5h 58m stop
06:00 — 08:57
F92407
Frontier Airlines
Las Vegas — Seattle
|
11h 8m including layover |
Find flight
from$65 |
Flight Information
Below we will explain in detail what the flights cost on the destination from Denver to Seattle depends on and how to choose the most interesting flight option for you.
Distance between Denver and Seattle is 1644 miles. Time difference between the cities is 1h. Airplanes depart 00:35 to 22:59 from 2 Denver airports and arrive 00:35 to 22:59 to 3 Seattle airports. Average flight time is 3h 5m.
- The fastest flight 3h 1m
- Average flight time 3h 5m
- The earliest flight 00:35
- The latest flight 22:59
- Distance 1022 ml
The cheapest months to travel to Seattle are november (from 33 $), december (from 58 $), january (from 59 $).
The most expensive months are february (from 67 $), january (from 59 $), december (from 58 $).
What is the lowest airfare Denver to Seattle?
The cheapest plane ticket found by our users is $33. This airfare is for economy class on one-way F91175 flight by Frontier Airlines for February 21, 2025 which leaves Denver International in Denver at 06:35 am and arrives at Seattle Seattle-Tacoma Intl at 08:37.
Popular Airlines on the Route
The flight Denver — Seattle is served by 8 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 71 departures per week at the price of from $ 33 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 4322.
Direct flights
There are 24 nonstop flights on the route. The fastest direct flight is UA2651 by United Airlines takes 3h 1m and the cheapest is F91175 by Frontier Airlines for $33.
- from $33Find
- from $113Find
- from $101Find
- AS - Alaska Airlinesfrom $65Find
Connecting Flights
There are 408 flights with layovers on the route. The fastest connecting flight is UA5714 by United Airlines takes 4h 24m and the cheapest is F91175 by Frontier Airlines for $62.
- from $62Find
- from $180Find
- from $107Find
- AA - American Airlinesfrom $209Find
- AS - Alaska Airlinesfrom $115Find
- SY - Sun Country Airlinesfrom $295Find
- Y4 - Volarisfrom $556Find
- AM - Aeromexicofrom $625Find
Airports
You can fly from Denver to Seattle from 2 airports (Denver International, Arapahoe Co).
Denver airports
- Denver International-DENfrom $33Find
- Arapahoe Co-APAFind
Seattle airports
- Boeing Field International Airport-BFIFind
- Seattle-Tacoma Intl-SEAFind
- Kenmore Air Harbor SPB-LKEFind
Airplanes
There are flights to Seattle from Denver by 8 airlines that use 10 aircraft brands. They range from huge modern airplanes to small-sized.
- Boeing 737-800from $113Find
- Airbus A320from $180Find
- A220-300from $186Find
- Embraer 175 (short wing)from $209Find
- Boeing 737-100/200from $246Find
- Boeing 737-900from $246Find
- Boeing 737from $297Find
- Boeing 737 MAX 8from $303Find
- Boeing 777from $303Find
- Airbus A319from $311Find
Top Domestic Destinations from Denver
You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.
- from $70Find
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- from $57Find
- from $17Find
- from $67Find
Top International Destinations from Denver
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 $66Find
- from $63Find
- from $75Find
- from $60Find
- from $60Find
- from $75Find
- from $66Find
- from $68Find
- from $69Find
- from $72Find
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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