Cheap Flights from Seattle, WA to Denver, CO from $48
On Cheapflightsplus.com you will find 37 direct and 233 connecting flights from Seattle to Denver. You can compare airfare deals from 7 airlines and multiple travel sites from $48, book and save on cheap plane tickets and last minute offers. Also check out SEA-DEN 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 Seattle to Denver depends on and how to choose the most interesting flight option for you.
Distance between Seattle and Denver is 1644 miles. Time difference between the cities is 1h. Airplanes depart 00:20 to 23:59 from 3 Seattle airports and arrive 00:20 to 23:59 to 2 Denver airports. Average flight time is 2h 45m.
- The fastest flight 2h 40m
- Average flight time 2h 45m
- The earliest flight 00:20
- The latest flight 23:59
- Distance 1022 ml
Best Flights from Seattle to Denver Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $48 | 12:30 Seattle Seattle-Tacoma Intl | 16:15 Denver Denver International | 2h 45m | Sun Country Airlines | SY1698 |
| from $49 | 06:25 Seattle Seattle-Tacoma Intl | 10:12 Denver Denver International | 2h 47m | Frontier Airlines | F93406 |
| from $77 | 20:17 Seattle Seattle-Tacoma Intl | 23:59 Denver Denver International | 2h 42m | Hawaiian Airlines | HA6652 |
| from $68 | 13:50 Seattle Seattle-Tacoma Intl | 20:42 Denver Denver International | 5h 52m layover 0h 51m - Ontario | Frontier Airlines | F93163 F92908 |
| from $96 | 15:11 Seattle Seattle-Tacoma Intl | 23:08 Denver Denver International | 6h 57m layover 2h 10m - Las Vegas | Frontier Airlines | F94830 F94612 |
The cheapest months to travel to Denver are may (from 48 $), june (from 49 $), october (from 68 $).
The most expensive months are november (from 218 $), february (from 102 $), july (from 78 $).
What is the lowest airfare Seattle to Denver?
The cheapest plane ticket found by our users is $48. This airfare is for economy class on one-way SY1698 flight by Sun Country Airlines for May 30, 2025 which leaves Seattle-Tacoma Intl in Seattle at 12:30 am and arrives at Denver Denver International at 16:15.
Flight Schedule Seattle (Washington) to Denver (Colorado)
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Popular Airlines on the Route
The flight Seattle — Denver is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 54 departures per week at the price of from $ 81 . And the most expensive tickets are offered by Turkish Airlines airline - from $ 1572.
Direct flights
There are 37 nonstop flights on the route. The fastest direct flight is UA1218 by United Airlines takes 2h 40m and the cheapest is SY1698 by Sun Country Airlines for $48.
- AS - Alaska Airlinesfrom $81Find
- F9 - Frontier Airlinesfrom $49Find
- SY - Sun Country Airlinesfrom $48Find
- HA - Hawaiian Airlinesfrom $77Find
- UA - United Airlinesfrom $106Find
Connecting Flights
There are 233 flights with layovers on the route. The fastest connecting flight is HA6826 by Hawaiian Airlines takes 4h 11m and the cheapest is SY1698 by Sun Country Airlines for $68.
- AS - Alaska Airlinesfrom $112Find
- F9 - Frontier Airlinesfrom $68Find
- SY - Sun Country Airlinesfrom $133Find
- TK - Turkish Airlinesfrom $1572Find
- HA - Hawaiian Airlinesfrom $102Find
- UA - United Airlinesfrom $140Find
- NK - Spirit Airlinesfrom $136Find
Airports
You can fly from Seattle to Denver 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 $48Find
- Kenmore Air Harbor SPB-LKEFind
Denver airports
- Denver International-DENFind
- Arapahoe Co-APAFind
Airplanes
There are flights to Denver from Seattle by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Seattle
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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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