Frontier Airlines Denver to Seattle Flights

Return flight: Seattle – Denver

Cheapflightsplus.com will find cheap Frontier Airlines flights from Denver to Seattle. Compare airline ticket prices and book air tickets starting from $32 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 Denver (CO) — Seattle (WA) 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 - $32, two-way – $55.
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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
10:01 pm — 8:55 am
+1 day
10:01 pm — 11:41 pm F9407 Frontier Airlines
Denver — Los Angeles
6h 19m stop
6:00 am — 8:55 am AS1353 Alaska Airlines
Los Angeles — Seattle
11h 54m
including layover
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from$72
10:05 pm — 0:02 am
+1 day
10:05 pm — 0:02 am F9143 Frontier Airlines
Denver — Seattle
2h 57m
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from$39
10:09 pm — 6:30 am
+1 day
10:09 pm — 11:55 pm F9793 Frontier Airlines
Denver — Portland
5h 35m stop
5:30 am — 6:30 am AS795 Alaska Airlines
Portland — Seattle
9h 21m
including layover
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from$103
10:10 pm — 8:11 pm
+1 day
10:10 pm — 11:57 pm F9665 Frontier Airlines
Denver — San Francisco
12h 32m stop
12:29 pm — 1:55 pm F92901 Frontier Airlines
San Francisco — Las Vegas
3h 30m stop
5:25 pm — 8:11 pm F92167 Frontier Airlines
Las Vegas — Seattle
23h 1m
including layover
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from$71
10:44 pm — 8:50 am
+1 day
10:44 pm — 11:51 pm F9775 Frontier Airlines
Denver — Las Vegas
6h 9m stop
6:00 am — 8:50 am F92167 Frontier Airlines
Las Vegas — Seattle
11h 6m
including layover
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from$71
10:53 pm — 10:37 am
+1 day
10:53 pm — 11:59 pm F9773 Frontier Airlines
Denver — Las Vegas
8h 1m stop
8:00 am — 10:37 am NK486 Spirit Airlines
Las Vegas — Seattle
12h 44m
including layover
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from$40
10:53 pm — 9:31 am
+1 day
10:53 pm — 11:59 pm F9773 Frontier Airlines
Denver — Las Vegas
6h 46m stop
6:45 am — 9:31 am F92169 Frontier Airlines
Las Vegas — Seattle
11h 38m
including layover
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from$61
2:59 pm — 5:02 pm
2:59 pm — 5:02 pm F9143 Frontier Airlines
Denver — Seattle
3h 3m
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from$32
6:25 am — 8:31 am
6:25 am — 8:31 am F9145 Frontier Airlines
Denver — Seattle
3h 6m
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from$32
6:50 pm — 8:48 pm
6:50 pm — 8:48 pm F9145 Frontier Airlines
Denver — Seattle
2h 58m
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from$77
8:35 pm — 8:35 am
+1 day
8:35 pm — 11:58 pm F9410 Frontier Airlines
Denver — Chicago
6h 2m stop
6:00 am — 8:35 am AS27 Alaska Airlines
Chicago — Seattle
13h
including layover
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from$72
8:35 pm — 8:38 am
+1 day
8:35 pm — 11:58 pm F9410 Frontier Airlines
Denver — Chicago
6h 17m stop
6:15 am — 8:38 am DL1377 Delta Air Lines Inc.
Chicago — Seattle
13h 3m
including layover
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from$81
8:35 pm — 11:35 am
+1 day
8:35 pm — 11:58 pm F9410 Frontier Airlines
Denver — Chicago
8h 57m stop
8:55 am — 11:35 am UA467 United Airlines
Chicago — Seattle
16h
including layover
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from$89
9:01 pm — 10:09 pm
+1 day
9:01 pm — 11:59 pm F9264 Frontier Airlines
Denver — Dallas
7h 31m stop
7:30 am — 9:51 am NK2812 Spirit Airlines
Dallas — Chicago
9h 44m stop
7:35 pm — 10:09 pm AS21 Alaska Airlines
Chicago — Seattle
26h 8m
including layover
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from$91
9:01 pm — 8:09 am
+1 day
9:01 pm — 11:59 pm F9264 Frontier Airlines
Denver — Dallas
6h 1m stop
6:00 am — 8:09 am AS389 Alaska Airlines
Dallas — Seattle
12h 8m
including layover
Find flight
from$114
*Departure and arrival times are local. Last updated on 10/06/2024

Flight Information

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

Departures start from 10:01 pm to 9:01 pm. Nonstop flight is 2h 57m. The time difference between Denver and Seattle is 1h.

  • The fastest flight 2h 57m
  • Average flight time 3h 1m
  • The earliest flight 10:01 pm
  • The latest flight 9:01 pm
  • Distance 1022 ml

The cheapest flight by Frontier Airlines that our users were able to find is $32. This airfare is economy class on one-way F9143 flight for October 7, 2020 leaving Denver International in Denver at 2:59 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Frontier Airlines there are other 6 airline carriers between Denver and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Denver to Seattle.

Nonstop flights

There are 73 direct flights every day from Denver. 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.

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