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Amazing Frontier Airlines DEN to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $97 round trip and $49 one way. Prices and availability subject to change. Additional terms may apply.


Carrier Flight Depart DEN Arrive SEA Fri
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F9 145 10:59 am 01:01 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
F9 143 10:01 pm 12:01 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)

FAQs about Frontier Airlines Flights from DEN to SEA

What terminal is Frontier Airlines at Denver Airport?

If you're flying from Denver, CO Airport (DEN-Denver Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) with Frontier Airlines, you'll probably be taking off from the main terminal. Your airline should be able to tell you exactly which terminal you'll be landing at.

Are there Frontier Airlines non-stop flights from DEN to SEA?

Yes, there are. Save yourself time and effort and fly straight from Denver, CO Airport (DEN-Denver Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) with Frontier Airlines. Avoid transfers, reduce the risk of losing your suitcase and begin your vacation faster — direct flights are the preferred way to travel for many savvy wanderers.

How long is a Frontier Airlines flight from DEN to SEA?

From the time your Frontier Airlines plane is pushed back from the gate at Denver, CO Airport (DEN-Denver Intl.) to the instant it taxis into Seattle, WA Airport (SEA-Seattle - Tacoma Intl.), your journey will take about 3 hours and 59 minutes. With such a short and sweet flight time, it's a great little spur-of-the-moment vacation.

What type of aircraft does Frontier Airlines fly from DEN to SEA?

Planning to fly from DEN to SEA with Frontier Airlines? You'll usually be stepping aboard the Airbus A320 or the Airbus A321 type aircraft.

How many direct and indirect flights does Frontier Airlines fly from DEN to SEA?

Venturing to and from Denver, CO (DEN-Denver Intl.) and Seattle, WA (SEA-Seattle - Tacoma Intl.) is a piece of cake. You'll find 8 Frontier Airlines flights that connect DEN and SEA every week.

Flying Tips & Tricks How do I find my flight number?
  • Your flight code will be on your itinerary, which your carrier will email to you once your reservation has been finalized. It's wise to keep this close at hand in case you have to make any changes to your ticket.
How early can you check bags for a flight?
  • If you're on an international flight, you can usually drop off your luggage three hours before a flight. For domestic departures, it's more like two hours. Why not ease some of the stress of traveling and get to the airport nice and early? This way, you won't have to worry about missing the bag drop altogether. It usually closes 45 minutes before a domestic flight and one hour before an international one.

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.