$89 Cheap Frontier Airlines flights Dallas (DFW) to Seattle (SEA)

View $89 flight on Fri, Aug 15, 2025Opens in a new window

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$89 Cheap Frontier Airlines flights Dallas (DFW) to Seattle (SEA)

Prices were available within the past 7 days and start at $89 for one-way flights and $178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Aug 8 - Fri, Aug 15
DFW
Dallas
SEA
Seattle
$178 Roundtrip, found 1 hour ago
$178
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Aug 8 from Dallas to Seattle, returning Fri, Aug 15, priced at $178 found 1 hour ago
Frontier Airlines
Mon, Aug 18 - Wed, Aug 20
DFW
Dallas
SEA
Seattle
$182 Roundtrip, found 2 hours ago
$182
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Aug 18 from Dallas to Seattle, returning Wed, Aug 20, priced at $182 found 2 hours ago
Frontier Airlines
Sat, Aug 23 - Tue, Aug 26
DFW
Dallas
SEA
Seattle
$185 Roundtrip, found 1 hour ago
$185
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Dallas to Seattle, returning Tue, Aug 26, priced at $185 found 1 hour ago
Frontier Airlines
Sat, Aug 23 - Tue, Aug 26
DFW
Dallas
SEA
Seattle
$193 Roundtrip, found 1 hour ago
$193
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Dallas to Seattle, returning Tue, Aug 26, priced at $193 found 1 hour ago
Frontier Airlines
Fri, Aug 8 - Wed, Aug 13
DFW
Dallas
SEA
Seattle
$196 Roundtrip, found 5 hours ago
$196
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, Aug 8 from Dallas to Seattle, returning Wed, Aug 13, priced at $196 found 5 hours ago
Frontier Airlines
Tue, Oct 7 - Fri, Oct 10
DFW
Dallas
SEA
Seattle
$198 Roundtrip, found 3 hours ago
$198
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, Oct 7 from Dallas to Seattle, returning Fri, Oct 10, priced at $198 found 3 hours ago
Flights from Dallas (DFW) to Seattle (SEA)
Origin airport
Dallas-Fort Worth Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
Alaska Airlines
Distance
1657 mi
Average flight time
2 hours 16 mins

Frequently asked questions

How much is a Frontier Airlines flight from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
You'll discover cheap return Frontier Airlines flights from $178 from DFW to SEA by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $89 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DFW to SEA with Frontier Airlines?
January is one of the most affordable months to jet off to Seattle with Frontier Airlines. You could also find fantastic deals on one-way and return tickets in February.
What is the cheapest time to book flights from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) with Frontier Airlines?
Begin your search one to three months ahead of your travel date to score cheap fares on Frontier Airlines flights from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
Yes, you can travel from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) on any of Frontier Airlines's 2 weekly direct flights. Use our "Nonstop" and "Airline" filters to find the Frontier Airlines flight that'll take you to SEA at your preferred time.
How long does it take to fly from DFW to SEA with Frontier Airlines?
Leave Dallas-Fort Worth Intl. Airport (DFW) for Seattle - Tacoma Intl. Airport (SEA) on a nonstop Frontier Airlines flight, and you'll be in the skies for around 4h 17m.
What is the earliest Frontier Airlines flight from DFW to SEA?
Departing DFW at 3:58PM UTC-6, the first Frontier Airlines flight to SEA arrives at 6:15PM UTC-8. Traveling early means you're less likely to experience delays.* Prefer a later start? The last Frontier Airlines flight from DFW to SEA departs at 3:58PM UTC-6 and touches down at 6:15PM UTC-8.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Seattle?
Frontier Airlines flights from Dallas-Fort Worth Intl. Airport (DFW) to Seattle touch down at Seattle - Tacoma Intl. Airport (SEA). This is the main entry point to this city.
Why fly with Frontier Airlines from DFW to SEA?
Offering a rewarding loyalty program, Frontier Airlines is a top pick for many travelers flying from DFW to SEA. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Frontier Airlines fly from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
Chances are you'll travel on an Airbus A320neo for your Frontier Airlines flight from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA). However, you may be switched to an alternative aircraft if there's an operational need.
Can I change or cancel my Frontier Airlines flight from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
Changes are usually free within 24 hours of making a booking, but your airline may charge a fee after that. For more information about modifying your flights, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to adjust your plans without being charged, check the "Changes included" or "No cancel fee" filter when organizing your next escape.

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*Available to One Key members.