Cheap Flights from Denver, CO to Seattle, WA from $72
On Cheapflightsplus.com you will find 7 direct and 48 connecting flights from Denver to Seattle. You can compare airfare deals from 6 airlines and multiple travel sites from $72, 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.
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 05:02 to 23:54 from 2 Denver airports and arrive 05:02 to 23:54 to 3 Seattle airports. Average flight time is 2h 58m.
- The fastest flight 2h 57m
- Average flight time 2h 58m
- The earliest flight 05:02
- The latest flight 23:54
- Distance 1022 ml
Best Flights from Denver to Seattle Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $72 | 16:44 Denver Denver International | 18:46 Seattle Seattle-Tacoma Intl | 3h 2m | Frontier Airlines | F91175 |
| from $77 | 15:03 Denver Denver International | 17:00 Seattle Seattle-Tacoma Intl | 2h 57m | Hawaiian Airlines | HA4865 |
| from $82 | 15:03 Denver Denver International | 17:00 Seattle Seattle-Tacoma Intl | 2h 57m | Alaska Airlines | AS535 |
| from $97 | 07:00 Denver Denver International | 14:06 Seattle Seattle-Tacoma Intl | 8h 6m layover 3h 15m - Las Vegas | Frontier Airlines | F92015 F92407 |
| from $107 | 11:33 Denver Denver International | 15:24 Seattle Seattle-Tacoma Intl | 4h 51m layover 1h 10m - Portland | Alaska Airlines | AS1136 AS2188 |
The cheapest months to travel to Seattle are august (from 72 $), july (from 94 $), may (from 98 $).
The most expensive months are november (from 187 $), october (from 152 $), february (from 139 $).
What is the lowest airfare Denver to Seattle?
The cheapest plane ticket found by our users is $72. This airfare is for economy class on one-way F91175 flight by Frontier Airlines for July 27, 2025 which leaves Denver International in Denver at 16:44 am and arrives at Seattle Seattle-Tacoma Intl at 18:46.
Flight Schedule Denver (Colorado) to Seattle (Washington)
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Popular Airlines on the Route
The flight Denver — Seattle is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 10 departures per week at the price of from $ 82 . And the most expensive tickets are offered by United Airlines airline - from $ 1597.
Direct flights
There are 7 nonstop flights on the route. The fastest direct flight is HA4865 by Hawaiian Airlines takes 2h 57m and the cheapest is F91175 by Frontier Airlines for $72.
- AS - Alaska Airlinesfrom $82Find
- F9 - Frontier Airlinesfrom $72Find
- HA - Hawaiian Airlinesfrom $77Find
- UA - United Airlinesfrom $106Find
Connecting Flights
There are 48 flights with layovers on the route. The fastest connecting flight is AS1136 by Alaska Airlines takes 4h 51m and the cheapest is F91175 by Frontier Airlines for $97.
- AS - Alaska Airlinesfrom $107Find
- F9 - Frontier Airlinesfrom $97Find
- SY - Sun Country Airlinesfrom $316Find
- HA - Hawaiian Airlinesfrom $139Find
- UA - United Airlinesfrom $151Find
- G4 - Allegiant Airfrom $249Find
Airports
You can fly from Denver to Seattle from 2 airports (Denver International, Arapahoe Co).
Denver airports
- Denver International-DENfrom $72Find
- 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 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Denver
You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.
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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.
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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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