Cheap flights from San Francisco, CA to Chicago, IL

Flights starting at $89. Choose between Frontier Airlines, United Airlines, or Alaska Airlines to find the best price.

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Tips to know when travelling to Chicago

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Travelers usually depart from San Francisco International, San Francisco, CA Train Station, or San Francisco, CA - Fisherman’s Wharf when they travel from San Francisco to Chicago. Book your trip to arrive at O Hare International, Chicago Midway International, or Chicago Rockford International. The distance between San Francisco and Chicago is 2968 km. The most popular airlines for this route are Frontier Airlines, United Airlines, Alaska Airlines, Spirit Airlines, and Allegiant Air. San Francisco and Chicago have 274 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from San Francisco to Chicago in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 10.03 - Sat 16.03

AirlineSun 10.03Mon 11.03Tue 12.03Wed 13.03Thu 14.03Fri 15.03Sat 16.03
22227---2
---------------------
---11------------

Weekly direct flights for Sun 17.03 - Sat 23.03

AirlineSun 17.03Mon 18.03Tue 19.03Wed 20.03Thu 21.03Fri 22.03Sat 23.03
4---43387
---------------21
------111------

Weekly direct flights for Sun 24.03 - Sat 30.03

AirlineSun 24.03Mon 25.03Tue 26.03Wed 27.03Thu 28.03Fri 29.03Sat 30.03
7778352
211212---
11---1---1---

Weekly direct flights for Sun 31.03 - Sat 06.04

AirlineSun 31.03Mon 01.04Tue 02.04Wed 03.04Thu 04.04Fri 05.04Sat 06.04
5688876
2------2221
---------------1---

Check-in for a flight from San Francisco to Chicago

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight

Weather in Chicago

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-6°C
February0°C-5°C
March5°C0°C
April10°C4°C
May17°C10°C
June22°C16°C
July25°C20°C
August25°C19°C
September22°C16°C
October15°C10°C
November8°C3°C
December2°C-1°C
Hottest Month
25°C
July
Coldest month
-6°C
January
Sunny days
253
days per year
Snow days
17
days per year

14 day forecast

Thursday
14 Mar
99%
12°C5°C
21 Mar
4°C4°C
Friday
15 Mar
6°C3°C
22 Mar
89%
3°C1°C
Saturday
16 Mar
13°C6°C
23 Mar
3°C0°C
Sunday
17 Mar
5°C2°C
24 Mar
10°C2°C
Monday
18 Mar
77%
3°C-2°C
25 Mar
17°C7°C
Tuesday
19 Mar
9°C1°C
26 Mar
78%
14°C11°C
Wednesday
20 Mar
10°C5°C
27 Mar
89%
15°C13°C

Frequently asked questions

How long does it take to travel from San Francisco to Chicago?
What is the flight distance between San Francisco and Chicago?
What airlines offer nonstop (direct) flights between San Francisco and Chicago?
What are the most popular routes to and from San Francisco?
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What airports are near San Francisco?
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Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Francisco and Chicago?
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