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Cheap Flights from Seattle to Chicago, IL, United States - SEA to CHI

Popular flights from Seattle to Chicago

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
May 14, 2016 May 18, 2016 $196
May 19, 2016 May 24, 2016 $196
May 20, 2016 May 24, 2016 $196
American Airlines
Departure Date Return Date Lowest Price
Jun 7, 2016 Jun 14, 2016 $197
Jun 7, 2016 Jun 22, 2016 $197
Frontier Airlines
Departure Date Return Date Lowest Price
May 4, 2016 May 10, 2016 $208
Jun 1, 2016 Jun 7, 2016 $208
JetBlue Airways
Departure Date Return Date Lowest Price
Jun 11, 2016 Jun 14, 2016 $498
Spirit Airlines
Departure Date Return Date Lowest Price
Jun 7, 2016 Jun 22, 2016 $274
United Airlines
Departure Date Return Date Lowest Price
May 8, 2016 May 10, 2016 $205
May 9, 2016 May 10, 2016 $205
Virgin America
Departure Date Return Date Lowest Price
Jun 22, 2016 Jun 29, 2016 $366

How Much Does it Cost to Fly from Seattle to Chicago (SEA to CHI)?

We have collected flight cost data from across the web for travel from Seattle to Chicago, and have found the average flight price for this trip to be $198.

When Can I Buy the Cheapest Flight from Seattle to Chicago (SEA to CHI)?

Airlines can adjust prices for plane tickets from Seattle to Chicago based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Seattle to Chicago

The chart below shows up-to-date information regarding how far in advance a flight from Seattle to Chicago should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $208 $205
7-14 days $196 $205
14-21 days $196 $205
21-30 days $228 $260
30-60 days $197 $226
60-90 days $386 $354
90+ days $369 $213

Cheapest Day To Fly from Seattle to Chicago

The chart below shows up-to-date information regarding the cheapest days to fly from Seattle to Chicago.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$205 $197 $205 $196 $196 $196 $197

Lowest Fares Chart By Month from Seattle to Chicago

The chart below shows the lowest fare by month when flying from Seattle to Chicago.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Seattle Chicago Alaska 5/14/16 5/18/16 0 $196
June Seattle Chicago American 6/7/16 6/14/16 0 $197
July Seattle Chicago Spirit 7/18/16 7/20/16 1 $354
August Seattle Chicago Alaska 8/23/16 8/30/16 1 $284
September Seattle Chicago Alaska 9/21/16 10/1/16 1 $284
October Seattle Chicago Alaska 10/26/16 10/28/16 1 $213
November Seattle Chicago Alaska 11/2/16 11/11/16 1 $300
December Seattle Chicago Spirit 12/10/16 12/12/16 2 $308

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Seattle to Chicago

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Seattle to Chicago.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$252
8 9 10 11 12 13 14
$252 $267
15 16 17 18 19 20 21
$267 $196
22 23 24 25 26 27 28
$196 $328
29 30 31 1 2 3 4
$328 $228
5 6 7 8 9 10 11
$228

Non-Stop vs Connecting Flights from Seattle to Chicago (SEA to CHI)

Your Seattle to Chicago flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Seattle to Chicago is $324.

The average price for non-stop flights from Seattle to Chicago is $246.

The chart below shows up to date information regarding non-stop flights from Seattle to Chicago.

Nonstop Flight Details from Seattle to Chicago
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
American 9 7 7 8 8 8 9 00:15 17:35
Alaska 4 4 4 4 4 3 3 00:45 18:05
Frontier 1 0 1 0 1 0 0 00:59 00:59
United 5 5 5 5 5 4 3 06:01 22:56

Round Trip vs One Way Flights from Seattle to Chicago (SEA to CHI)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Seattle to Chicago. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Seattle to Chicago is $141.

The average price for round trip flights from Seattle to Chicago is $308.

More Cheap Flights

FlightsAirlineLowest Price
Portland to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $122
Vancouver to Chicago Pacific Coastal, American, Air Canada, Alaska, Frontier, Spirit, United, WestJet $376
Bellingham to Chicago American, Alaska $372
Victoria to Chicago Pacific Coastal, American, Air Canada, Alaska, United, WestJet $299
Pasco to Chicago American, Alaska, United $310
Wenatchee to Chicago American, Alaska $361
Yakima to Chicago American, Alaska $461
Comox to Chicago American, Air Canada, United, WestJet Check Dates
Nanaimo to Chicago American, Air Canada, Spirit, United, WestJet Check Dates
Penticton to Chicago American, Air Canada, Alaska, United, WestJet $465
Seattle to Atlanta American, Alaska, Frontier, Spirit, United $370
Seattle to Milwaukee American, Alaska, Frontier, United $274
Seattle to New York American, Alaska, JetBlue, Frontier, Hawaiian, Sun Country, United, Virgin America $303
Seattle to Dallas - Ft Worth American, Alaska, Frontier, Spirit, Sun Country, United, Virgin America $224
Seattle to Detroit American, Alaska, JetBlue, Spirit, United $313
Portland to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $324
Portland to Milwaukee American, Alaska, Frontier, United $244
Portland to Atlanta American, Alaska, Frontier, United $340
Seattle to Minneapolis - St Paul American, Alaska, Frontier, Spirit, Sun Country, United $278
Seattle to Indianapolis American, Alaska, Frontier, United $261
Seattle to Madison American, Alaska, United $456
Seattle to South Bend American, Allegiant, United $454
Seattle to St Louis American, Alaska, Frontier, United $255
Vancouver to New York Pacific Coastal, American, Air Canada, Alaska, JetBlue, Cathay, Spirit, Sun Country, United, Virgin America, WestJet, Great Lakes $315
Portland to Dallas - Ft Worth American, Alaska, Frontier, Hawaiian, Spirit, United, Virgin America $117
Seattle to Grand Rapids American, Alaska, United $342
Portland to Detroit American, Alaska, JetBlue, Frontier, Spirit, United $278
Vancouver to Milwaukee American, Air Canada, Alaska, Frontier, United, WestJet $347
Portland to South Bend American, United $500
Seattle to Washington American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $286

Airlines Flying from Seattle to Chicago (SEA to CHI)

Below are the different airlines that fly from Seattle to Chicago with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Seattle to Chicago.

Seattle to Chicago
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American - X X X X X X X
Alaska - X X X X X X X
Alaska PDX X X X X X X X
Delta MSP X X X X X X X
Frontier - X X X
Frontier DEN X X X X X X X
United - X X X X X X X
United SFO X X X X X X X
Virgin America SFO X X X X X X X
Southwest - X X X X X X X
Southwest BNA X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Seattle and Chicago, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Seattle to Chicago Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Seattle to Chicago?
Answer: The average Seattle to Chicago flight time is 4 hours.
Question: How many miles are there between Seattle and Chicago?
Answer: The distance from Seattle to Chicago is 1715 miles.
Question: How common are direct flights from Seattle to Chicago?
Answer: There are 98 direct flights from Seattle to Chicago.
Question: What is the most popular airline for non-stop flights from Seattle to Chicago?
Answer: American Airlines provides 37% of the non-stop flights between Seattle and Chicago.
Question: What are the most popular connecting cities when flying from Seattle to Chicago?
Answer: Denver, CO
Seattle (SEA) To Chicago, IL (CHI) Flights: Cheap Flights From Seattle To Chicago | FareCompare.