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Book Cheap Frontier Airlines flights from Chicago (CHI) to Seattle (SEA)

Flight deals from Chicago to Seattle

Save big and visit this destination

Prices shown below were available within the past 3 days for the period specified and should not be considered the final price offered. Please note that availability and prices are subject to change.

Frontier Airlines flight deals from Chicago to Seattle

Chicago Seattle

BEST

DEAL

Wed, 12 Feb MDW - SEA

-21 %

$51 $40

Prime price per passenger

Chicago Seattle

BEST

DEAL

Thu, 28 Nov ORD - SEA

Mon, 02 Dec SEA - ORD

$397 $385

Prime price per passenger

Chicago Seattle

BEST

DEAL

Thu, 28 Nov ORD - SEA

Mon, 02 Dec SEA - ORD

$401 $389

Prime price per passenger

Best flight offers from other airlines

Chicago Seattle

BEST

DEAL

Thu, 28 Nov ORD - SEA

Sat, 30 Nov SEA - ORD

$296 $287

Prime price per passenger

Chicago Seattle

BEST

DEAL

Wed, 27 Nov ORD - SEA

Sat, 30 Nov SEA - ORD

$359 $348

Prime price per passenger

Chicago Seattle

BEST

DEAL

Thu, 28 Nov ORD - SEA

Sat, 30 Nov SEA - ORD

$362 $349

Prime price per passenger

Chicago Seattle

BEST

DEAL

Wed, 27 Nov ORD - SEA

Mon, 02 Dec SEA - ORD

$443 $431

Prime price per passenger

Chicago Seattle

BEST

DEAL

Wed, 27 Nov ORD - SEA

Fri, 29 Nov SEA - ORD

$446 $434

Prime price per passenger

Chicago Seattle

BEST

DEAL

Thu, 28 Nov ORD - SEA

Mon, 02 Dec SEA - ORD

$449 $443

Prime price per passenger

Get your flight with Frontier Airlines to Seattle starting at $40

Flying with Frontier Airlines

Looking for a great deal on Frontier Airlines flights from Chicago to Seattle? eDreams US has an amazing search engine for you to check the last minute Frontier Airlines airfares if you are in hurry to see a loved one or for a last minute business trip. No need to worry for a smart choice! You can also look for the cheapest prices and save some money to enjoy more in Seattle. We quickly compare and display the cheapest flight combinations in seconds and bring you the best ones! Adjust your travel dates now and explore the dozens of Frontier Airlines offers from Chicago at great prices, as you have all the privilege to access the top airline carriers and their best offers. Already chose Frontier Airlines's best suited deal? Don´t forget to enhance your Seattle holiday by booking a hotel and renting a car! Convenience will take on a completely new meaning after your experience with eDreams!.

Fly with eDreams

At eDreams, your online travel portal, you can easily find cheap flights with Frontier Airlines from Chicago to Seattle. Our fast search engine compares thousands of flights in just a few seconds and only shows you the really suitable flight connections.

Find the best deals on Frontier Airlines flights from Chicago to Seattle!

Easy online travel

You can easily choose from various options, such as price, departure times, airport, flight duration, flight connections (direct flight or with a stopover) and many more, thereby filtering the most suitable Frontier Airlines flight from Chicago after Seattle. Book your trip and save a lot of time with the simple and clear flight search from eDreams!

Book now

It is also worth downloading the eDreams app and subscribing to our newsletter - here you will also receive exclusive discounts and offers with which you can save a lot of money on your next travel booking. You can also easily book a hotel or rental car in Seattle with your trip at eDreams. With our combination offers you save even more! Book your Frontier Airlines flights from Chicago to Seattle quickly, easily and conveniently now with eDreams.

Frontier Airlines Chicago-Seattle flights FAQ's

What do Frontier Airlines flights from Chicago to Seattle cost?

One of Frontier Airlines cheapest prices for a Chicago to Seattle flight we have right now is $40. On average though, flights with Frontier Airlines cost $347.57 for the route Chicago to Seattle, but it mostly depends on the season and how far in advance you book your tickets.

Cheapest Ticket Price $40 The most affordable rate found in the last 72 hours for flights operated by Frontier Airlines leaving from Chicago and going to Seattle, according to our customers' bookings.

Flight Time 4 h and 48 m The Frontier Airlines flight duration between Chicago and Seattle is around 4 h and 48 m, however it could be affected by other circumstances.

Departure Airport O'hare International Airport Your departure will be from O'hare International Airport, when flying with Frontier Airlines from Chicago to Seattle.

Arrival Airport Seattle All Airports When flying with Frontier Airlines from Chicago to Seattle, your arrival airport will be O'hare International Airport.