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FareCompare's flight comparison tool will search through all flights and plane tickets from Seattle to Chicago, finding you the most direct flight for the best price. Whether you prefer round-trip or one-way tickets, FareCompare will find the cheapest flight from Seattle to Chicago so you can spend time planning the fun parts of traveling.

Cheap Flights from Seattle to Chicago - SEA to CHI

Cheap flights from Seattle to Chicago

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

Alaska Airlines
Departure Date Return Date Lowest Price
Oct 25, 2015 Oct 29, 2015 $328
Oct 31, 2015 Nov 3, 2015 $328
American Airlines
Departure Date Return Date Lowest Price
Sep 24, 2015 Sep 28, 2015 $334
Sep 25, 2015 Sep 28, 2015 $334
Sep 29, 2015 Oct 8, 2015 $334
Sep 29, 2015 Oct 8, 2015 $334
Oct 1, 2015 Oct 4, 2015 $334
Frontier Airlines
Departure Date Return Date Lowest Price
Nov 17, 2015 Dec 5, 2015 $309
Sun Country Airlines
Departure Date Return Date Lowest Price
Sep 25, 2015 Sep 29, 2015 $284
US Airways
Departure Date Return Date Lowest Price
Sep 24, 2015 Sep 28, 2015 $330
Sep 25, 2015 Sep 28, 2015 $330
Oct 1, 2015 Oct 7, 2015 $330
United Airlines
Departure Date Return Date Lowest Price
Sep 21, 2015 Sep 24, 2015 $321
Virgin America
Departure Date Return Date Lowest Price
Sep 19, 2015 Sep 21, 2015 $330

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 $309.

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 $418 $322
7-14 days $337 $284
14-21 days $335 $321
21-30 days $334 $284
30-60 days $334 $311
60-90 days $342 $310
90+ days $342 $312

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
$312 $309 $312 $317 $284 $312 $318

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
September Seattle Chicago Sun Country 9/16/15 9/24/15 1 $284
October Seattle Chicago Frontier 10/31/15 11/7/15 1 $311
November Seattle Chicago Frontier 11/4/15 11/17/15 1 $308
December Seattle Chicago Frontier 12/3/15 12/15/15 1 $312
January Seattle Chicago United 1/27/16 2/5/16 2 $352
February Seattle Chicago United 2/2/16 2/16/16 2 $342
March Seattle Chicago Alaska 3/1/16 3/9/16 0 $359
April Seattle Chicago Alaska 4/1/16 4/10/16 0 $381

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
6 7 8 9 10 11 12
$488
13 14 15 16 17 18 19
$488 $336
20 21 22 23 24 25 26
$336 $330
27 28 29 30 1 2 3
$330 $334
4 5 6 7 8 9 10
$334 $334
11 12 13 14 15 16 17
$334

TIPSave $35 by flying into Milwaukee instead of Chicago from Seattle

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 $333.

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 5 6 6 6 6 4 6 05:00 23:59
Alaska 4 4 4 4 4 3 4 00:50 18:10
United 4 4 4 4 4 3 4 06:40 23:10

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 $165.

The average price for round trip flights from Seattle to Chicago is $322.

More Cheap Flights

FlightsAirlineLowest Price
Portland to Chicago United, Alaska, American, US Airways, Spirit, JetBlue, Frontier, Virgin America $146
Vancouver to Chicago Alaska, US Airways, WestJet, Sunwing, Frontier, Air Canada, United, American, Sun Country, Virgin America $280
Bellingham to Chicago Alaska, American $404
Victoria to Chicago Air Canada, Alaska, United, US Airways, American, WestJet $384
Pasco to Chicago Alaska, United, American $393
Wenatchee to Chicago Alaska, American $420
Yakima to Chicago Alaska, American $404
Comox to Chicago Air Canada, United, WestJet, Central Mountain Check Dates
Nanaimo to Chicago Air Canada, United, American, WestJet Check Dates
Penticton to Chicago Air Canada, United, Alaska, American, WestJet Check Dates
Seattle to Atlanta Alaska, United, US Airways, American, Frontier $215
Seattle to Milwaukee Alaska, United, US Airways, American, Frontier $254
Seattle to New York Alaska, US Airways, JetBlue, Hawaiian, United, American, Sun Country, Virgin America $266
Seattle to Dallas - Ft Worth Alaska, United, US Airways, American, Sun Country, Frontier, Virgin America $243
Seattle to Detroit Alaska, United, American, US Airways, JetBlue, Frontier $262
Portland to New York Alaska, US Airways, JetBlue, Frontier, United, American, Spirit, Virgin America $321
Portland to Milwaukee Alaska, United, American, US Airways, Frontier $310
Portland to Atlanta Alaska, United, American, US Airways, Spirit, Frontier $264
Seattle to Minneapolis - St Paul United, Alaska, US Airways, American, Sun Country, Frontier $257
Seattle to Indianapolis United, Alaska, US Airways, American, Frontier $310
Seattle to Madison United, Alaska, American, US Airways, Frontier $400
Seattle to South Bend Alaska, United, US Airways, American $438
Seattle to St Louis Alaska, United, US Airways, American, Frontier $214
Vancouver to New York Cathay, Alaska, US Airways, WestJet, JetBlue, Sunwing, Frontier, Air Canada, United, American, Sun Country, Virgin America $363
Portland to Dallas - Ft Worth United, Alaska, American, US Airways, Spirit, Frontier, Virgin America $136
Seattle to Grand Rapids Alaska, United, US Airways, American $362
Portland to Detroit United, Alaska, American, US Airways, Spirit, JetBlue, Frontier $314
Vancouver to Milwaukee Air Canada, United, Alaska, US Airways, American, WestJet, Frontier $418
Portland to South Bend Alaska, United, American, US Airways $334
Seattle to Washington Alaska, United, American, US Airways, Sun Country, JetBlue, Frontier, Virgin America $261

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 ATL X X X X X X X
Sun Country MSP X X X X X X
United - X X X X X X X
United DEN X X X X X X X
US Airways PHX X X X X X X X
Virgin America SFO 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 3 hours and 56 minutes.
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 93 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 41% of the non-stop flights between Seattle and Chicago.
Question: What are the most popular connecting cities when flying from Seattle to Chicago?
Answer: Minneapolis - St Paul, MN
Seattle (SEA) To Chicago (CHI) Flights: Cheap Flights From Seattle To Chicago | FareCompare.