Frontier Airlines Seattle to Denver Flights

Return flight: Denver – Seattle

Cheapflightsplus.com will find cheap Frontier Airlines flights from Seattle to Denver. Compare airline ticket prices and book air tickets starting from $28 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Frontier Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Denver (CO) by Frontier Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in october: one-way - $28, two-way – $48.
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Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
0:55 am — 4:30 am
0:55 am — 4:30 am F9136 Frontier Airlines
Seattle — Denver
2h 35m
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from$56
2:10 pm — 5:53 pm
2:10 pm — 5:53 pm F9142 Frontier Airlines
Seattle — Denver
2h 43m
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from$28
7:00 am — 10:39 am
7:00 am — 10:39 am F9144 Frontier Airlines
Seattle — Denver
2h 39m
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from$28
7:21 pm — 11:01 pm
7:21 pm — 11:01 pm F9142 Frontier Airlines
Seattle — Denver
2h 40m
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from$48
9:05 pm — 8:39 pm
+1 day
9:05 pm — 11:38 pm F92166 Frontier Airlines
Seattle — Las Vegas
18h 9m stop
5:47 pm — 8:39 pm NK799 Spirit Airlines
Las Vegas — Denver
22h 34m
including layover
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from$55
9:05 pm — 9:03 am
+1 day
9:05 pm — 11:38 pm F92166 Frontier Airlines
Seattle — Las Vegas
6h 27m stop
6:05 am — 9:03 am F9770 Frontier Airlines
Las Vegas — Denver
10h 58m
including layover
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from$60
9:05 pm — 6:54 pm
+1 day
9:05 pm — 11:38 pm F92166 Frontier Airlines
Seattle — Las Vegas
6h 22m stop
6:00 am — 8:28 am G43 Allegiant Air
Las Vegas — Albuquerque
8h 58m stop
5:26 pm — 6:54 pm F9630 Frontier Airlines
Albuquerque — Denver
20h 49m
including layover
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from$68
*Departure and arrival times are local. Last updated on 10/06/2024

Flight Information

There are 4 flights by Frontier Airlines from Seattle to Denver every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Denver International and Arapahoe Co.

Departures start from 0:55 am to 9:05 pm. Nonstop flight is 2h 35m. The time difference between Seattle and Denver is 1h.

  • The fastest flight 2h 35m
  • Average flight time 2h 40m
  • The earliest flight 0:55 am
  • The latest flight 9:05 pm
  • Distance 1022 ml

The cheapest flight by Frontier Airlines that our users were able to find is $28. This airfare is economy class on one-way F9142 flight for September 6, 2020 leaving Seattle-Tacoma Intl in Seattle at 2:10 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Frontier Airlines there are other 7 airline carriers between Seattle and Denver. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Denver.

Nonstop flights

There are 73 direct flights every day from Seattle. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air 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 airfare.
  • 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.

    To find a plane ticket, please select dates.

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