Frontier Airlines Seattle to Denver Flights

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Denver – Seattle

Page navigation

Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap Frontier Airlines flights from Seattle to Denver. Compare airline ticket prices and book air tickets starting from $60 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 december: one-way - $60, two-way – $103.

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

Cheap Flights from Seattle to Denver by Frontier Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by Frontier Airlines, their prices start from $60. The fastest nonstop flight takes 2h 43m. The fastest connecting flight — 5h 33m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $60 Find flight	10:08 pm Seattle Seattle-Tacoma Intl	1:51 am+1 день Denver Denver International	2h 43m	Frontier Airlines	F91176
from $65 Find flight	4:35 pm Seattle Seattle-Tacoma Intl	11:33 pm Denver Denver International	5h 58m layover 1h 0m - Ontario	Frontier Airlines	F93163 F91500
from $70 Find flight	9:52 pm Seattle Seattle-Tacoma Intl	10:03 am+1 день Denver Denver International	11h 11m layover 6h 21m - Phoenix	Frontier Airlines	F93974 F94768
from $75 Find flight	10:36 am Seattle Seattle-Tacoma Intl	8:01 am+1 день Denver Denver International	20h 25m layover 16h 38m - Salt Lake City	Frontier Airlines	F94988 F93862
from $87 Find flight	7:51 pm Seattle Seattle-Tacoma Intl	12:09 pm+1 день Denver Denver International	15h 18m layover 10h 26m - Las Vegas	Frontier Airlines	F94830 F92016
from $87 Find flight	5:21 pm Seattle Seattle-Tacoma Intl	7:53 am+1 день Denver Denver International	13h 32m layover 7h 2m - Dallas	Frontier Airlines	F94066 F93365

Show All Flights

*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 12/21/2024

Frontier Airlines Flight Schedule Seattle to Denver

Below is a detailed 2025 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	Flight Details	Flight Time	Price
10:08 pm — 1:51 am +1 day	10:08 pm — 1:51 am F91176 Frontier Airlines Seattle — Denver	2h 43m	Find flight from$60
10:36 am — 8:01 am +1 day	9:57 am — 1:05 pm F94988 Frontier Airlines Seattle — Salt Lake City 16h 38m stop 6:15 am — 7:52 am F93862 Frontier Airlines Salt Lake City — Denver	20h 25m including layover	Find flight from$75
10:36 am — 12:25 pm +1 day	9:57 am — 1:05 pm F94988 Frontier Airlines Seattle — Salt Lake City 21h 13m stop 10:45 am — 12:22 pm F93982 Frontier Airlines Salt Lake City — Denver	24h 49m including layover	Find flight from$75
12:07 pm — 6:40 pm	2:55 pm — 5:32 pm F94830 Frontier Airlines Seattle — Las Vegas 53m stop 0:59 am — 3:59 am F92430 Frontier Airlines Las Vegas — Denver	5h 33m including layover	Find flight from$198
4:35 pm — 11:33 pm	7:28 pm — 10:08 pm F93163 Frontier Airlines Seattle — Ontario 1h stop 6:30 am — 9:54 am F91500 Frontier Airlines Ontario — Denver	5h 58m including layover	Find flight from$65
5:21 pm — 7:53 am +1 day	5:21 pm — 11:31 pm F94066 Frontier Airlines Seattle — Dallas 7h 2m stop 6:33 am — 7:53 am F93365 Frontier Airlines Dallas — Denver	13h 32m including layover	Find flight from$87
7:51 pm — 12:09 pm +1 day	2:55 pm — 5:32 pm F94830 Frontier Airlines Seattle — Las Vegas 10h 26m stop 8:18 am — 11:19 am F92016 Frontier Airlines Las Vegas — Denver	15h 18m including layover	Find flight from$87
7:51 pm — 2:31 pm +1 day	2:55 pm — 5:32 pm F94830 Frontier Airlines Seattle — Las Vegas 12h 41m stop 11:00 am — 2:06 pm F92350 Frontier Airlines Las Vegas — Denver	17h 40m including layover	Find flight from$87
9:52 pm — 10:03 am +1 day	9:52 pm — 1:44 am F93974 Frontier Airlines Seattle — Phoenix 6h 21m stop 8:15 am — 10:11 am F94768 Frontier Airlines Phoenix — Denver	11h 11m including layover	Find flight from$70

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 12/21/2024

Flight Information

There is 1 flight 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 10:08 pm to 9:52 pm. Nonstop flight is 2h 43m. The time difference between Seattle and Denver is 1h.

The fastest flight 2h 43m
Average flight time 2h 43m
The earliest flight 10:08 pm
The latest flight 9:52 pm
Distance 1022 ml

The cheapest months for traveling to Denver are november (from 30 $), december (from 59 $), february (from 60 $).

The most expensive and popular months are january (from 65 $), february (from 60 $), december (from 59 $).

The cheapest flight by Frontier Airlines that our users were able to find is $60. This airfare is economy class on one-way F91176 flight for February 21, 2025 leaving Seattle-Tacoma Intl in Seattle at 10:08 pm, it includes all taxes and additional fees.

Find same flight?

Frontier Airlines Airplanes on the Route

List of the most popular Frontier Airlines airplanes flying from Seattle to Denver:

Other Popular Airlines on the Route

Besides Frontier Airlines there are other 5 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 11 direct flights every day from Seattle. Airlines and fares are below:

AS - Alaska Airlines

from $81

Find
UA - United Airlines

from $117

Find

See more direct flights

Connecting Flights

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

AS - Alaska Airlines

from $102

Find
UA - United Airlines

from $138

Find
NK - Spirit Airlines

from $212

Find
Y4 - Volaris

from $398

Find
AM - Aeromexico

from $957

Find

See more connecting flights

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.