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Cheap flights from Chicago to San Francisco from ₹ 15,137

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago to San Francisco are usually found in September or October, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Chicago to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Chicago to San Francisco
Explore the most affordable flight options available from Chicago to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Sat 5/915:25 -
1 stop10h 33m
Fri 11/906:23 -
1 stop9h 38m
Deal found 6/8₹ 24,467
Thu 3/918:48 -
1 stop7h 07m
Sun 6/907:13 -
1 stop6h 38m
Deal found 4/8₹ 25,419
Thu 10/1214:25 -
1 stop6h 55m
Thu 31/1206:00 -
1 stop8h 37m
Deal found 3/8₹ 26,371
Thu 17/1221:49 -
Nonstop5h 08m
Mon 18/122:45 -
Nonstop4h 19m
Deal found 7/8₹ 26,466
Fri 4/915:35 -
Nonstop4h 49m
Sun 6/918:38 -
Nonstop4h 21m
Deal found 6/8₹ 27,323
Thu 27/811:23 -
1 stop7h 52m
Fri 11/916:59 -
2 stops12h 58m
Deal found 5/8₹ 28,084
Thu 1/1006:07 -
Nonstop4h 38m
Wed 7/1000:35 -
Nonstop4h 21m
Deal found 2/8₹ 28,179
Fri 4/921:28 -
Nonstop4h 48m
Mon 7/906:00 -
Nonstop4h 29m
Deal found 4/8₹ 28,275
Mon 24/806:01 -
1 stop6h 52m
Mon 24/815:25 -
1 stop6h 34m
Deal found 3/8₹ 28,655
Fri 4/918:48 -
1 stop7h 07m
Sun 6/907:13 -
1 stop6h 38m
Deal found 4/8₹ 29,227
Tue 22/914:18 -
1 stop10h 54m
Fri 2/1008:25 -
1 stop8h 56m
Deal found 6/8₹ 29,512

Find flight deals from Chicago to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 August 2026.

Round-trip from

₹ 24,467

One-way from

₹ 15,137

Popular in

June

Cheapest in

September

Average price

₹ 35,891
United Airlines
  • United Airlines
  • 28/10-2/11
  • Nonstop
  • 9h 13m total
  • Chicago to San Francisco
Search Deals
United Airlines
  • United Airlines
  • 25/12
  • Nonstop
  • 5h 08m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (₹ 271,097 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (₹ 58,774 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chicago to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 7 August 2026.
Use the filters below to find and compare flights from Chicago to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sat 14/11

09:30-15:58

1 stop8h 28m

San Francisco

Sat 21/11

23:59-09:05

1 stop7h 06m

₹ 30,560
Fastest return journey

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Thu 22/10

07:44-10:30

Nonstop4h 46m

San Francisco

Sun 25/10

18:42-00:59

Nonstop4h 17m

₹ 32,083

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sat 19/9

08:00-19:06

2 stops13h 06m

San Francisco

Sat 26/9

10:32-19:21

1 stop6h 49m

₹ 33,796

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Tue 13/10

19:15-23:56

1 stop6h 41m

San Francisco

Thu 29/10

20:59-08:53

2 stops9h 54m

₹ 42,079

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sun 13/9

05:00-09:52

1 stop6h 52m

San Francisco

Thu 17/9

14:58-21:35

Nonstop4h 37m

₹ 42,460

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sat 22/8

08:40-11:25

Nonstop4h 45m

San Francisco

Sat 29/8

16:10-22:30

Nonstop4h 20m

₹ 44,268

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sat 22/8

07:48-19:43

2 stops13h 55m

San Francisco

Thu 10/9

16:59-07:56

2 stops12h 57m

₹ 44,649

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Mon 21/12

10:45-10:36

1 stop25h 51m

San Francisco

Wed 30/12

18:24-10:48

1 stop14h 24m

₹ 46,172

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sun 23/8

07:00-13:12

1 stop8h 12m

San Francisco

Thu 27/8

14:08-00:18

1 stop8h 10m

₹ 46,458

ChicagoSan Francisco

ORD Chicago O'Hare Intl - SFO San Francisco

ORDSFO

Chicago O'Hare Intl

Sat 22/8

15:55-18:44

Nonstop4h 49m

San Francisco

Fri 28/8

15:10-21:30

Nonstop4h 20m

₹ 47,029

Flights are sorted by cheapest return flights first.

Deals found on 2/8

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Chicago to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Chicago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to San Francisco

What is the cheapest month to book a flight from Chicago to San Francisco?

Currently, September is the cheapest month in which you can book a flight from Chicago to San Francisco (average of ₹ 31,702). Flying from Chicago to San Francisco in June is currently the most expensive (average of ₹ 45,125). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to SFO?

Find hourly flight availability from Chicago to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 August 2026.

When flying from Chicago to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 27% versus a flight in the afternoon.

Weekly flight availability from Chicago to San Francisco

Explore weekly flight availability from Chicago to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 7 August 2026.

The most flights from CHI to SFO are scheduled on a Wednesday (92 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (24 on average).

How much does it cost for a return flight from Chicago to San Francisco?

Airfare is below average for this route at the moment.
Chicago to San Francisco flights typically cost between ₹ 28,655 and ₹ 48,362 in September.
The cheapest return price found within the last 5 days was ₹ 24,467 on Delta (5 Sept–11 Sept).

How often are flights from Chicago to San Francisco delayed?

About 26% of weekly flights between Chicago and San Francisco have experienced delays in the past year, with the average delay time being 175 minutes.

What is the most punctual flight time for Chicago to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to San Francisco flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 23% of flights being delayed.

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

The price you pay for your flight from Chicago to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

Find useful and relevant information for your journey from Chicago to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Chicago?

    San Francisco (SFO), located 17.7 km from the city centre, is the airport you fly into when you book flights from Chicago to San Francisco. 3 airlines have flights to San Francisco from Chicago on a regular basis. Booking flights from Chicago to San Francisco should not be difficult; the airport handles an average of 61 inbound flights from Chicago per day.

  • How long is the flight from Chicago to San Francisco?

    Airlines like United Airlines and Delta fly from Chicago to San Francisco in about 4h 48m. The time it takes to get you to your destination can typically vary by up to 3h 40m. Chicago and San Francisco are separated by a distance of 2963 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Chicago to San Francisco round-trip?

    Currently priced at ₹ 6,854, Frontier will fly you from Chicago to San Francisco and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from ₹ 19,284 and ₹ 22,469, respectively. You may be able to fly from Chicago to San Francisco for 81% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Chicago to San Francisco?

    Before booking your flight to San Francisco from Chicago, have a look at the most reliable airlines to get you to your destination on time: ANA (75%), Air China (74%), Austrian Airlines( 70%).

  • Can I find deals for flights from Chicago to San Francisco that include hotel bookings?

    Yes. In addition to deals on Chicago to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to San Francisco.

  • Can I find deals for business class flights from Chicago to San Francisco?

    Yes. Cheapflights offers flight deals from Chicago to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to San Francisco?

    Currently, September is the cheapest month in which you can book a flight from Chicago to San Francisco (average of ₹ 31,702). Flying from Chicago to San Francisco in June is currently the most expensive (average of ₹ 45,125). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
San Bruno
Mountain View
Burlingame
Milpitas
Santa Clara

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chicago to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to San Francisco flights

Top 3 airlines flying from Chicago to San Francisco

Discover the top 3 airlines that operate flights from Chicago to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 7 August 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest₹ 6,854Average₹ 19,392FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest₹ 19,284Average₹ 36,839FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest₹ 22,469Average₹ 44,967FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chicago to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Chicago to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Chicago to San Francisco?

Cheapflights simply makes it quick and affordable to book flights from Chicago to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Chicago to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Chicago shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Chicago to San Francisco become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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