Cheap flights from Chicago to San Francisco (CHI - SFO)

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The best prices from Chicago to San Francisco are usually found in August or April, booked 33 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

How to find the cheapest flight from
Chicago (CHI) to San Francisco (SFO)

CHI - SFO
Price
$236 - $312
SFO
Temperature
59 - 77 °F
SFO
Rainfall
0 - 4.7 inches

Popular in

December

High demand for flights, 13% potential price rise

Cheapest in

August

Best time to find cheap flights, 13% potential price drop

Round-trip from

$236

From Chicago to San Francisco

One-way from

$42

One-way flight from Chicago to San Francisco

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago to San Francisco?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Chicago to San Francisco?

To save up to 7% on this flight, we recommend booking at least 35 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago to San Francisco from $99 1-2 weeks out and tickets from $105 for flights departing within the next 72 hours.

What is the cheapest month to fly from Chicago to San Francisco?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, August can be a great choice for travel to San Francisco. Flights to San Francisco from Chicago in August are about $108 on average during August, but can be found for as low as $48.

When is the cheapest time to fly from Chicago to San Francisco (CHI - SFO)?

Unlike in the morning, when flights are generally more expensive, you can save up to 7% on flights from Chicago to San Francisco by exploring options for tickets in the afternoon.

Cheap flights from Chicago to San Francisco in March, April 2021

26 Apr - 28 Apr
$82pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
9 Apr - 12 Apr
$88pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
15 Apr - 19 Apr
$89pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Chicago to San Francisco 2021 flight deals

26 Apr - 28 Apr
$82pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
6 May - 9 May
$86pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
9 Apr - 12 Apr
$88pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Non-stop flights to San Francisco from Chicago

6 Apr - 13 Apr
$142pp
ORD
Chicago O'Hare Intl
Major Airline
Non-Stop
SFO
San Francisco
SFO
San Francisco
Major Airline
Non-Stop
ORD
Chicago O'Hare Intl
3 Apr - 8 Apr
$151pp
ORD
Chicago O'Hare Intl
Major Airline
Non-Stop
SFO
San Francisco
SFO
San Francisco
Major Airline
Non-Stop
ORD
Chicago O'Hare Intl
8 May - 8 May
$152pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to San Francisco

16 Mar - 23 Mar
$97pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
17 Mar - 24 Mar
$100pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
17 Mar - 18 Mar
$102pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to San Francisco from Chicago

5:10 am - 11:59 am
Multiple Airlines
1 Stop
8h 49m
ORD - SFO
Multiple Airlines
$42
Gotogate
9:42 am - 8:10 am
Frontier
1 Stop
24h 28m
ORD - SFO
Frontier
$44
FlightNetwork
4:21 pm - 2:39 pm
Frontier
1 Stop
24h 18m
ORD - SFO
Frontier
$45
Gotogate

Related info for your journey

Flight FAQs

From Chicago to San Francisco

Are flight prices decreasing from Chicago to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Chicago to San Francisco to control the spread of COVID-19?

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Chicago to San Francisco are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Chicago to San Francisco have flexible cancellations due to COVID-19?

Some of our airline partners flying from Chicago to San Francisco have new flexible policies in place due to COVID-19. United Airlines, American Airlines, and Alaska Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Can I find flights from Chicago to San Francisco for under $100 on Cheapflights?

Yes, there are multiple flights from Chicago to San Francisco for under $100. The cheapest flight booked recently is on Multiple Airlines for just $82, but on average you can expect to pay $96.

Are there nonstop flights from Chicago to San Francisco for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to San Francisco under $200. A good price for a nonstop flight from Chicago to San Francisco is less than $175.

Are there last-minute flights available from Chicago to San Francisco for under $100?

There are currently 20+ open flights from Chicago to San Francisco within the next 7 days for less than $100.

What days are nonstop flights available from Chicago to San Francisco?

You can find nonstop flights on the following days: Monday, Tuesday, Wednesday, Thursday, Friday.

How many flights depart from Chicago to San Francisco on average per day?

On average, you can expect to see 25 flights from Chicago to San Francisco a day.
Morning (6am - Noon) - 16% of flight departures
Afternoon (Noon - 6pm) - 8% of flight departures
Evening (6pm - Midnight) - 76% of flight departures

Is Chicago weather warmer or cooler than San Francisco?

We forecast the temperature to be around the 84 °F's in July, on average. The temperature in San Francisco is generally colder than in Chicago. Book flights in a timely manner in correlation to your departure date.

How long is the flight from Chicago to San Francisco?

Airlines like Frontier and Delta fly from Chicago to San Francisco in about 6h 49m. The time it takes to get you to your destination can typically vary by up to 25m. Airlines will cover a distance of 1851 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What is the cheapest airline to fly from Chicago to San Francisco round-trip?

Flying on Frontier is currently your cheapest option to San Francisco, with prices starting at $86. Frontier is 68% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Chicago to San Francisco one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $44.

Alternative routes for Chicago to San Francisco

Destination information for San Francisco

Average temperature for March in San Francisco
66.2 °F
Avg rainfall for March in San Francisco
1.6 ″

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing San Francisco

Top 7 airlines flying from Chicago to San Francisco

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$103 $236 No cancel fee 65%
Frontier
$102 $255 No cancel fee 62%
Alaska Airlines
$118 $257 No cancel fee 75%
Sun Country Air
$131 $293 No cancel fee 83%
United Airlines
$138 $337 No cancel fee 69%
American Airlines
$128 $339 No cancel fee 71%
Delta
$127 $350 No cancel fee N/A

Hourly flight availability from Chicago to San Francisco

Afternoon Noon to 6 PM 60% of CHI to SFO departures
Morning 6 AM to noon 30% of CHI to SFO departures
Evening 6 PM to midnight 9% of CHI to SFO departures
Early morning Midnight to 6 AM 1% of CHI to SFO departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to San Francisco
Sunday
29 daily flights
Monday
32 daily flights
Tuesday
22 daily flights
Wednesday
24 daily flights
Thursday
27 daily flights
Friday
34 daily flights
Saturday
29 daily flights
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