Cheap flights from Chicago to Seattle

Flights overview

Useful information for finding cheap flights from Chicago to Seattle and booking your next trip
Cheapest round-trip flights $177
Southwest Nonstop 5 hr Thu, Feb 12 — Wed, Feb 18
The cheapest round-trip flight from Chicago to Seattle is currently $177
Cheapest one-way flight $89
Southwest Nonstop 5 hr Wed, Feb 11
The cheapest one-way flight from Chicago to Seattle is currently $89
Last-minute weekend getaway $524
Frontier 1 stop 17 hr Fri, Jan 23 — Sun, Jan 25
The cheapest last-minute weekend getaway from Chicago to Seattle is currently $524
Cheapest business class flights $547
Delta Nonstop 5 hr Thu, Feb 12 — Wed, Feb 18
The cheapest business class round-trip flight from Chicago to Seattle is currently $547
Fastest flight 4 hr 30 min The fastest nonstop flight from Chicago to Seattle takes 4 hr 30 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Chicago to Seattle is typically February. The most expensive month to fly is typically July.
February
Cheapest
Typical prices: $150–245
July
Most expensive
Typical prices: $200–295

Popular airlines from Chicago to Seattle

  • Southwest
    Nonstop
    from $177
    Typical price: $225–465
    7 weekly nonstop flights
    MDW - SEA Every day
    1702 weekly connecting flights
    MDW, ORD - SEA Every day
  • United
    Nonstop
    from $177
    Typical price: $195–415
    21 weekly nonstop flights
    ORD - SEA Every day
    177 weekly connecting flights
    ORD - SEA Every day
  • Delta
    Nonstop
    from $177
    Typical price: $195–460
    13 weekly nonstop flights
    ORD - SEA Every day
    567 weekly connecting flights
    MDW, ORD - SEA Every day
  • Alaska
    Nonstop
    from $177
    Typical price: $195–445
    20 weekly nonstop flights
    ORD - SEA Every day
    28 weekly connecting flights
    ORD - SEA Every day
  • American
    Nonstop
    from $177
    Typical price: $200–435
    11 weekly nonstop flights
    ORD - SEA Every day
    150 weekly connecting flights
    ORD - SEA Every day
  • Frontier
    from $199
    Typical price: $190–460
    17 weekly connecting flights
    MDW, ORD - SEA Every Tue, Wed, Thu, Fri, Sat, Sun

Popular airports near Chicago

  • Chicago O'Hare International Airport (ORD)
    Chicago United States 27 min 16 mi
  • Chicago Midway International Airport (MDW)
    Chicago United States 25 min 9 mi
  • Milwaukee Mitchell International Airport (MKE)
    Milwaukee United States 1 hr 24 min 75 mi
  • Indianapolis International Airport (IND)
    Indianapolis United States 2 hr 58 min 165 mi

Popular airports near Seattle

  • Seattle-Tacoma International Airport (SEA)
    Seattle United States 18 min 11 mi
  • Paine Field (PAE)
    Everett United States 31 min 21 mi
  • King County International Airport - Boeing Field (BFI)
    Seattle United States 11 min 5 mi
  • Portland International Airport (PDX)
    Portland United States 2 hr 44 min 140 mi

Frequently asked questions about flying from Chicago to Seattle

The cheapest flights from Chicago to Seattle are usually in February. Typical ticket prices in February range from $150 to $245.
The cheapest round-trip flight from Chicago to Seattle recently found on Google Flights was with Southwest from $177. The cheapest one-way flight was with Southwest from $89.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Chicago to Seattle is $177, flying from Mar 5 to Mar 11.
  • The cheapest United flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest Delta flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest Alaska flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest American flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest Frontier flight from Chicago to Seattle is $199, flying from Feb 26 to Mar 7.
The cheapest round-trip flight from Chicago to Seattle starts at $177 from Thu, Feb 12 to Wed, Feb 18. The cheapest one-way flight starts at $89 and departs on Wed, Feb 11.
4 hr 30 min is the shortest flight time from Chicago to Seattle.
Most visitors come May–Sep, a period encompassing events such as the Seattle International Film Festival (May); Seafair (Jul), a summer festival including boat races, marathons and parades; and Bumbershoot (Sep), an international music and arts festival. Rainy season is Nov–May, though rain is possible year-round.
It's easy to use Google Flights to find the cheapest days to fly from Chicago to Seattle.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from Chicago to Seattle really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Chicago to Seattle.

In terms of nonstop flights, United is the most popular. United offers 21 nonstop flights and 177 connecting flights per week. United flies from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) .

In terms of flights, Southwest is the most popular. Southwest offers 7 nonstop flights and 1,702 connecting flights per week. Southwest flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) .

Other popular airlines flying from Chicago to Seattle are:
  • Delta offers 13 nonstop flights and 567 connecting flights per week. Delta flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) .
  • Alaska offers 20 nonstop flights and 28 connecting flights per week. Alaska flies from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) .
  • American offers 11 nonstop flights and 150 connecting flights per week. American flies from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) .
  • Frontier offers 17 connecting flights per week. Frontier flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) .
The number of connecting flights refers to distinct flights with at least one stop between Chicago and Seattle.
The cheapest round-trip flight from Chicago to Seattle recently found on Google Flights was with Southwest from $177. The cheapest one-way flight was with Southwest from $89.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Chicago to Seattle is $177, flying from Mar 5 to Mar 11.
  • The cheapest United flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest Delta flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest Alaska flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest American flight from Chicago to Seattle is $177, flying from Feb 12 to Feb 18.
  • The cheapest Frontier flight from Chicago to Seattle is $199, flying from Feb 26 to Mar 7.
Southwest, Alaska, United, American and Delta fly direct from Chicago to Seattle.
  • There are 7 Southwest direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 21 United direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 13 Delta direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 20 Alaska direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 11 American direct flights from Chicago to Seattle per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between Chicago and Seattle at price $524 is offered by Frontier from Fri, Jan 23 to Sun, Jan 25.
Southwest, Alaska, United, American and Delta fly direct from Chicago to Seattle.
  • There are 7 Southwest direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 21 United direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 13 Delta direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 20 Alaska direct flights from Chicago to Seattle per week. Flights are available every day.
  • There are 11 American direct flights from Chicago to Seattle per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from Chicago to Seattle on a daily basis.
The cheapest direct (nonstop) round-trip flights between Chicago and Seattle start at $177 from Thu, Feb 12 to Wed, Feb 18 with Southwest.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Chicago to Seattle, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between Chicago and Seattle start at $547 from Thu, Feb 12 to Wed, Feb 18 with Delta.
The cheapest economy class round-trip flights between Chicago and Seattle start at $177 from Thu, Feb 12 to Wed, Feb 18.
To book business class trips from Chicago to Seattle, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between Chicago and Seattle starts at $524 from Fri, Jan 23 to Sun, Jan 25 with Frontier.
The cheapest last-minute deal between Chicago and Seattle at price $524 is offered by Frontier from Fri, Jan 23 to Sun, Jan 25.
To find last-minute flight deals from Chicago to Seattle, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

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