Cheap flights from Seattle, WA to Chicago, IL
Flights starting at £52. Choose between Alaska Airlines, United Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to Chicago
Cheapest one-way trip | £59 |
|---|---|
Cheapest round-trip | £134 |
Average round-trip | £164 |
Nonstop flights in April | £80 – £415 |
Most popular airline | Alaska Airlines |
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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Chicago. Book your trip to arrive at O Hare International, Chicago Midway International, or Chicago Rockford International. The distance between Seattle and Chicago is 2764 km. The most popular airlines for this route are Alaska Airlines, United Airlines, and Frontier Airlines. Seattle and Chicago have 80 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from Seattle to Chicago in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Mon 15.04 - Sun 21.04
| Airline | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 | Sun 21.04 |
|---|---|---|---|---|---|---|---|
| 5 | 4 | 4 | 5 | --- | --- | --- | |
| 4 | 4 | 4 | 4 | --- | --- | 1 |
Weekly direct flights for Mon 22.04 - Sun 28.04
| Airline | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 | Sun 28.04 |
|---|---|---|---|---|---|---|---|
| 4 | 2 | 2 | --- | 2 | 4 | 3 | |
| 1 | 1 | 1 | 2 | 5 | 4 | 3 |
Weekly direct flights for Mon 29.04 - Sun 05.05
| Airline | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 | Sun 05.05 |
|---|---|---|---|---|---|---|---|
| 3 | 4 | 4 | 6 | 6 | 4 | 6 | |
| 4 | 4 | 4 | 5 | 4 | 5 | 4 |
Weekly direct flights for Mon 06.05 - Sun 12.05
| Airline | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 | Sun 12.05 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 5 | 6 | 4 | 6 | |
| 5 | 5 | 4 | 5 | 5 | 5 | 4 |
Check-in for a flight from Seattle to Chicago
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
| United Airlines | UAL | UA | Yes | No |
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Chicago
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 0°C | -6°C |
| February | 0°C | -5°C |
| March | 6°C | 0°C |
| April | 10°C | 4°C |
| May | 17°C | 10°C |
| June | 22°C | 16°C |
| July | 25°C | 20°C |
| August | 25°C | 19°C |
| September | 22°C | 16°C |
| October | 15°C | 10°C |
| November | 8°C | 3°C |
| December | 2°C | -1°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
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