Frontier Airlines Denver to Seattle Flights

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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap Frontier Airlines flights from Denver to Seattle. Compare airline ticket prices and book air tickets starting from $30 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 march: one-way - $30, two-way – $51.

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Cheap Flights from Denver to Seattle 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 $30. The fastest nonstop flight takes 3h 2m. The fastest connecting flight — 5h 58m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $30 Find flight	6:35 am Denver Denver International	8:37 am Seattle Seattle-Tacoma Intl	3h 2m	Frontier Airlines	F91175
from $53 Find flight	7:08 pm Denver Denver International	9:11 pm Seattle Seattle-Tacoma Intl	3h 3m	Frontier Airlines	F93405
from $86 Find flight	6:15 pm Denver Denver International	12:53 pm+1 день Seattle Seattle-Tacoma Intl	19h 38m layover 14h 29m - Ontario	Frontier Airlines	F92907 F93164
from $91 Find flight	1:39 pm Denver Denver International	6:37 pm Seattle Seattle-Tacoma Intl	5h 58m layover 0h 54m - Phoenix	Frontier Airlines	F92141 F91723
from $157 Find flight	9:00 am Denver Denver International	7:01 pm Seattle Seattle-Tacoma Intl	11h 1m layover 6h 14m - Las Vegas	Frontier Airlines	F92015 F92407
from $215 Find flight	2:00 pm Denver Denver International	7:01 pm Seattle Seattle-Tacoma Intl	6h 1m layover 1h 4m - Las Vegas	Frontier Airlines	F92349 F92407
from $383 Find flight	11:17 am Denver Denver International	7:01 pm Seattle Seattle-Tacoma Intl	8h 44m layover 3h 50m - Las Vegas	Frontier Airlines	F91993 F92407

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 02/23/2025

Frontier Airlines Flight Schedule Denver to Seattle

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
11:17 am — 7:01 pm	10:09 am — 11:16 am F91993 Frontier Airlines Denver — Las Vegas 3h 50m stop 3:44 pm — 6:38 pm F92407 Frontier Airlines Las Vegas — Seattle	8h 44m including layover	Find flight from$383
1:39 pm — 6:37 pm	12:24 pm — 2:20 pm F92141 Frontier Airlines Denver — Phoenix 54m stop 3:12 pm — 5:25 pm F91723 Frontier Airlines Phoenix — Seattle	5h 58m including layover	Find flight from$91
2:00 pm — 7:01 pm	1:52 pm — 3:03 pm F92349 Frontier Airlines Denver — Las Vegas 1h 4m stop 6:00 am — 8:57 am F92407 Frontier Airlines Las Vegas — Seattle	6h 1m including layover	Find flight from$215
6:15 pm — 12:53 pm +1 day	6:15 pm — 7:37 pm F92907 Frontier Airlines Denver — Ontario 14h 29m stop 10:06 am — 12:53 pm F93164 Frontier Airlines Ontario — Seattle	19h 38m including layover	Find flight from$86
6:35 am — 8:37 am	6:35 am — 8:37 am F91175 Frontier Airlines Denver — Seattle	3h 2m	Find flight from$30
7:08 pm — 9:11 pm	7:08 pm — 9:11 pm F93405 Frontier Airlines Denver — Seattle	3h 3m	Find flight from$53
9:00 am — 7:01 pm	6:00 am — 7:09 am F92015 Frontier Airlines Denver — Las Vegas 6h 14m stop 3:44 pm — 6:38 pm F92407 Frontier Airlines Las Vegas — Seattle	11h 1m including layover	Find flight from$157

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

*Departure and arrival times are local. Last updated on 02/23/2025

Flight Information

There are 2 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 11:17 am to 9:00 am. Nonstop flight is 3h 2m. The time difference between Denver and Seattle is 1h.

The fastest flight 3h 2m
Average flight time 3h 3m
The earliest flight 11:17 am
The latest flight 9:00 am
Distance 1022 ml

The cheapest months for traveling to Seattle are november (from 30 $), january (from 52 $), december (from 52 $).

The most expensive and popular months are february (from 60 $), december (from 52 $), january (from 52 $).

The cheapest flight by Frontier Airlines that our users were able to find is $30. This airfare is economy class on one-way F91175 flight for February 21, 2025 leaving Denver International in Denver at 6:35 am, it includes all taxes and additional fees.

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Frontier Airlines Airplanes on the Route

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

Other Popular Airlines on the Route

Besides Frontier Airlines there are other 3 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 10 direct flights every day from Denver. Airlines and fares are below:

AS - Alaska Airlines

from $91

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UA - United Airlines

from $115

Find

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Connecting Flights

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

AS - Alaska Airlines

from $144

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UA - United Airlines

from $120

Find
Y4 - Volaris

from $1404

Find

See more connecting flights

How to book an air ticket yourself?

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