Frontier Airlines Washington D.C. to Seattle Flights

Cheapflightsplus.com will find cheap Frontier Airlines flights from Washington D.C. to Seattle. Compare airline ticket prices and book air tickets starting from $106 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 Washington D.C. (DC) — 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 april: one-way - $106, two-way – $182.
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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
1:50 pm — 6:31 pm
1:50 pm — 3:40 pm F9545 Frontier Airlines
Washington D.C. — Denver
52m stop
4:32 pm — 6:31 pm F9143 Frontier Airlines
Denver — Seattle
7h 41m
including layover
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from$197
1:50 pm — 7:39 pm
1:50 pm — 3:40 pm F9545 Frontier Airlines
Washington D.C. — Denver
2h 9m stop
5:49 pm — 7:39 pm UA1592 United Airlines
Denver — Seattle
8h 49m
including layover
Find flight
from$230
1:50 pm — 7:39 pm
1:50 pm — 3:40 pm F9545 Frontier Airlines
Washington D.C. — Denver
2h 9m stop
5:49 pm — 7:39 pm UA1051 United Airlines
Denver — Seattle
8h 49m
including layover
Find flight
from$297
6:00 pm — 0:05 am
+1 day
6:00 pm — 7:59 pm F9547 Frontier Airlines
Washington D.C. — Denver
2h 8m stop
10:07 pm — 0:05 am F9145 Frontier Airlines
Denver — Seattle
9h 5m
including layover
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from$121
6:00 pm — 2:39 pm
+1 day
6:00 pm — 7:59 pm F9547 Frontier Airlines
Washington D.C. — Denver
11h 1m stop
7:00 am — 8:30 am DL2682 Delta Air Lines Inc.
Denver — Los Angeles
3h 15m stop
11:45 am — 2:39 pm DL2044 Delta Air Lines Inc.
Los Angeles — Seattle
23h 39m
including layover
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from$165
6:00 pm — 7:39 pm
+1 day
6:00 pm — 7:59 pm F9547 Frontier Airlines
Washington D.C. — Denver
21h 50m stop
5:49 pm — 7:39 pm UA1051 United Airlines
Denver — Seattle
28h 39m
including layover
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from$168
6:00 pm — 2:28 pm
+1 day
6:00 pm — 7:59 pm F9547 Frontier Airlines
Washington D.C. — Denver
16h 16m stop
12:15 pm — 2:28 pm DL1121 Delta Air Lines Inc.
Denver — Seattle
23h 28m
including layover
Find flight
from$169
6:00 pm — 8:52 am
+1 day
6:00 pm — 7:59 pm F9547 Frontier Airlines
Washington D.C. — Denver
10h 40m stop
6:39 am — 8:52 am DL1104 Delta Air Lines Inc.
Denver — Seattle
17h 52m
including layover
Find flight
from$170
6:00 pm — 8:05 am
+1 day
6:00 pm — 7:59 pm F9547 Frontier Airlines
Washington D.C. — Denver
10h 1m stop
6:00 am — 8:05 am AS369 Alaska Airlines
Denver — Seattle
17h 5m
including layover
Find flight
from$179
6:03 am — 0:05 am
+1 day
6:03 am — 7:55 am F9453 Frontier Airlines
Washington D.C. — Denver
14h 12m stop
10:07 pm — 0:05 am F9145 Frontier Airlines
Denver — Seattle
21h 2m
including layover
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from$106
6:03 am — 10:09 pm
6:03 am — 7:55 am F9453 Frontier Airlines
Washington D.C. — Denver
12h 15m stop
8:10 pm — 10:09 pm AS443 Alaska Airlines
Denver — Seattle
19h 6m
including layover
Find flight
from$127
7:00 am — 10:09 pm
7:00 am — 8:59 am F9543 Frontier Airlines
Washington D.C. — Denver
11h 11m stop
8:10 pm — 10:09 pm AS443 Alaska Airlines
Denver — Seattle
18h 9m
including layover
Find flight
from$144
*Departure and arrival times are local. Last updated on 04/18/2024

Flight Information

There are 13 flights by Frontier Airlines from Washington D.C. to Seattle every week with departures from Ronald Reagan and Dulles International. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 1:50 pm to 7:00 am. Nonstop flight is 7h 41m. The time difference between Washington D.C. and Seattle is 3h.

  • The fastest flight 7h 41m
  • Average flight time 18h 1m
  • The earliest flight 1:50 pm
  • The latest flight 7:00 am
  • Distance 2321 ml

The cheapest flight by Frontier Airlines that our users were able to find is $106. This airfare is economy class on one-way F9453 flight for October 3, 2018 leaving Dulles International in Washington D.C. at 6:03 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Frontier Airlines there are other 2 airline carriers between Washington D.C. and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Washington D.C. to Seattle.

Nonstop flights

There’re no direct flights on this route. Try flights with stops.

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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?

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  • 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.
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  • 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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