Cheap flights from San Francisco, CA to Chicago, IL

Flights starting at £91. Choose between United Airlines, Alaska Airlines, or Frontier Airlines to find the best price.

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Tips to know when travelling 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 2982 km. The most popular airlines for this route are United Airlines, Alaska Airlines, Frontier Airlines, and Sun Country Airlines. San Francisco and Chicago have 111 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 Mon 20.05 - Sun 26.05

AirlineMon 20.05Tue 21.05Wed 22.05Thu 23.05Fri 24.05Sat 25.05Sun 26.05
---108------3---
---11------1---
1---1---11---

Weekly direct flights for Mon 27.05 - Sun 02.06

AirlineMon 27.05Tue 28.05Wed 29.05Thu 30.05Fri 31.05Sat 01.06Sun 02.06
---655---8---
---121---2---
------------11---

Weekly direct flights for Mon 03.06 - Sun 09.06

AirlineMon 03.06Tue 04.06Wed 05.06Thu 06.06Fri 07.06Sat 08.06Sun 09.06
91194663
1121111
1---1---11---

Weekly direct flights for Mon 10.06 - Sun 16.06

AirlineMon 10.06Tue 11.06Wed 12.06Thu 13.06Fri 14.06Sat 15.06Sun 16.06
81095556
1221121
1---1---11---

Check-in for a flight from San Francisco to Chicago

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Sun Country AirlinesSCXSYYesNo

Chicago travel tips

1) Live like a local in Chicago by renting an apartment or staying with Couchsurfing members
2) Spend time in The 606 trail in Chicago, similar to the High Line in New York
3) If you are going to visit many museums, buy the Chicago City Pass

Weather in Chicago

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-6°C
February0°C-5°C
March6°C0°C
April11°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
252
days per year
Snow days
17
days per year

14 day forecast

Monday
20 May
89%
25°C14°C
27 May
18°C13°C
Tuesday
21 May
87%
25°C13°C
28 May
82%
22°C14°C
Wednesday
22 May
85%
22°C15°C
29 May
88%
17°C12°C
Thursday
23 May
22°C14°C
30 May
89%
13°C11°C
Friday
24 May
89%
24°C16°C
31 May
85%
15°C11°C
Saturday
25 May
80%
23°C16°C
1 Jun
19°C13°C
Sunday
26 May
80%
15°C13°C
2 Jun
17°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?
What airports are near Chicago?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Francisco and Chicago?
What is Virtual Interlining and how do I use it?
Which airlines fly between San Francisco and Chicago?
When's the best time to travel between San Francisco and Chicago?
What flights operate between San Francisco and Chicago?
How many airports are there near San Francisco?
How many airports are there near Chicago?
What time do nonstop (direct) flights between San Francisco and Chicago depart?
What time do nonstop (direct) flights between San Francisco and Chicago arrive?
What time do flights between San Francisco and Chicago depart?
What time do flights between San Francisco and Chicago arrive?

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