Cheap flights from Seattle to Chicago

Flights overview

Useful information for finding cheap flights from Seattle to Chicago and booking your next trip
Cheapest round-trip flights $230
Frontier 1 stop 24 hr Thu, Jul 9 — Wed, Jul 15
The cheapest round-trip flight from Seattle to Chicago is currently $230
Cheapest one-way flight $105
Frontier 1 stop 8 hr Tue, Jul 21
The cheapest one-way flight from Seattle to Chicago is currently $105
Cheapest nonstop flights $355
Alaska Nonstop 5 hr Thu, May 21 — Wed, May 27
The cheapest nonstop round-trip flight from Seattle to Chicago is currently $355
Last-minute weekend getaway $262
Frontier 1 stop 18 hr Sat, May 9 — Mon, May 11
The cheapest last-minute weekend getaway from Seattle to Chicago is currently $262
Cheapest business class flights $488
Frontier 1 stop 28 hr Thu, Jul 30 — Wed, Aug 5
The cheapest business class round-trip flight from Seattle to Chicago is currently $488
Fastest flight 3 hr 55 min The fastest nonstop flight from Seattle to Chicago takes 3 hr 55 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 Seattle to Chicago is typically September. The most expensive month to fly is typically July.
September
Cheapest
Typical prices: $150–250
July
Most expensive
Typical prices: $205–290

Popular airlines from Seattle to Chicago

  • Southwest
    Nonstop
    from $355
    Typical price: $215–465
    14 weekly nonstop flights
    SEA - MDW Every day
    1554 weekly connecting flights
    SEA - MDW, ORD Every day
  • United
    Nonstop
    from $355
    Typical price: $195–435
    33 weekly nonstop flights
    SEA - ORD Every day
    221 weekly connecting flights
    SEA - ORD Every day
  • American
    Nonstop
    from $355
    Typical price: $200–445
    33 weekly nonstop flights
    SEA - ORD Every day
    134 weekly connecting flights
    SEA - ORD Every day
  • Alaska
    Nonstop
    from $355
    Typical price: $200–455
    34 weekly nonstop flights
    SEA - ORD Every day
    7 weekly connecting flights
    SEA - ORD Every day
  • Delta
    Nonstop
    from $355
    Typical price: $200–480
    21 weekly nonstop flights
    SEA - ORD Every day
    643 weekly connecting flights
    SEA - MDW, ORD Every day
  • Frontier
    from $230
    Typical price: $210–530
    36 weekly connecting flights
    SEA - MDW, ORD Every day

Popular airports near Seattle

  • Seattle-Tacoma International Airport (SEA)
    Seattle United States 18 min 11 mi
  • Portland International Airport (PDX)
    Portland United States 2 hr 44 min 140 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

Popular airports near Chicago

  • Chicago O'Hare International Airport (ORD)
    Chicago United States 26 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 23 min 75 mi
  • Indianapolis International Airport (IND)
    Indianapolis United States 2 hr 58 min 165 mi

Frequently asked questions about flying from Seattle to Chicago

The cheapest flights from Seattle to Chicago are usually in September. Typical ticket prices in September range from $150 to $250.
The cheapest round-trip flight from Seattle to Chicago recently found on Google Flights was with Frontier from $230. The cheapest one-way flight was with Frontier from $105.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Seattle to Chicago is $355, flying from May 28 to Jun 3.
  • The cheapest United flight from Seattle to Chicago is $355, flying from May 22 to May 28.
  • The cheapest American flight from Seattle to Chicago is $355, flying from May 28 to Jun 3.
  • The cheapest Alaska flight from Seattle to Chicago is $355, flying from May 21 to May 27.
  • The cheapest Delta flight from Seattle to Chicago is $355, flying from May 21 to May 27.
  • The cheapest Frontier flight from Seattle to Chicago is $230, flying from Jul 9 to Jul 15.
The cheapest round-trip flight from Seattle to Chicago starts at $230 from Thu, Jul 9 to Wed, Jul 15. The cheapest one-way flight starts at $105 and departs on Tue, Jul 21.
3 hr 55 min is the shortest flight time from Seattle to Chicago.
Chicago's peak season is Jun–Aug. Popular events throughout year include St. Patrick's Day, when the river is tinted green (Mar 17); the Pride Parade (Jun); the Taste of Chicago culinary festival (Jul) and the Jazz Festival (Sep). During the holiday season (Nov–Dec), the Magnificent Mile Lights Festival and Christkindlmarket, a German Christmas market in Daley Plaza, draw crowds to the city.
It's easy to use Google Flights to find the cheapest days to fly from Seattle to Chicago.
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 Seattle to Chicago 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 Seattle to Chicago.

In terms of nonstop flights, Alaska is the most popular. Alaska offers 34 nonstop flights and 7 connecting flights per week. Alaska flies from Seattle-Tacoma International Airport (SEA) to Chicago O'Hare International Airport (ORD) .

In terms of flights, Southwest is the most popular. Southwest offers 14 nonstop flights and 1,554 connecting flights per week. Southwest flies from Seattle-Tacoma International Airport (SEA) to Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) .

Other popular airlines flying from Seattle to Chicago are:
  • United offers 33 nonstop flights and 221 connecting flights per week. United flies from Seattle-Tacoma International Airport (SEA) to Chicago O'Hare International Airport (ORD) .
  • American offers 33 nonstop flights and 134 connecting flights per week. American flies from Seattle-Tacoma International Airport (SEA) to Chicago O'Hare International Airport (ORD) .
  • Delta offers 21 nonstop flights and 643 connecting flights per week. Delta flies from Seattle-Tacoma International Airport (SEA) to Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) .
  • Frontier offers 36 connecting flights per week. Frontier flies from Seattle-Tacoma International Airport (SEA) to Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) .
The number of connecting flights refers to distinct flights with at least one stop between Seattle and Chicago.
The cheapest round-trip flight from Seattle to Chicago recently found on Google Flights was with Frontier from $230. The cheapest one-way flight was with Frontier from $105.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Seattle to Chicago is $355, flying from May 28 to Jun 3.
  • The cheapest United flight from Seattle to Chicago is $355, flying from May 22 to May 28.
  • The cheapest American flight from Seattle to Chicago is $355, flying from May 28 to Jun 3.
  • The cheapest Alaska flight from Seattle to Chicago is $355, flying from May 21 to May 27.
  • The cheapest Delta flight from Seattle to Chicago is $355, flying from May 21 to May 27.
  • The cheapest Frontier flight from Seattle to Chicago is $230, flying from Jul 9 to Jul 15.
Southwest, Alaska, American, United and Delta fly direct from Seattle to Chicago.
  • There are 14 Southwest direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 33 United direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 33 American direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 34 Alaska direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 21 Delta direct flights from Seattle to Chicago 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 Seattle and Chicago at price $262 is offered by Frontier from Sat, May 9 to Mon, May 11.
Southwest, Alaska, American, United and Delta fly direct from Seattle to Chicago.
  • There are 14 Southwest direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 33 United direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 33 American direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 34 Alaska direct flights from Seattle to Chicago per week. Flights are available every day.
  • There are 21 Delta direct flights from Seattle to Chicago 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 Seattle to Chicago on a daily basis.
The cheapest direct (nonstop) round-trip flights between Seattle and Chicago start at $355 from Thu, May 21 to Wed, May 27 with Alaska.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Seattle to Chicago, 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 Seattle and Chicago start at $488 from Thu, Jul 30 to Wed, Aug 5 with Frontier.
The cheapest economy class round-trip flights between Seattle and Chicago start at $230 from Thu, Jul 9 to Wed, Jul 15.
To book business class trips from Seattle to Chicago, 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 Seattle and Chicago starts at $262 from Sat, May 9 to Mon, May 11 with Frontier.
The cheapest last-minute deal between Seattle and Chicago at price $262 is offered by Frontier from Sat, May 9 to Mon, May 11.
To find last-minute flight deals from Seattle to Chicago, 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.

Search more flights

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