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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from £74

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
5 May — 12 May1
1 adult

Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Francisco are usually found in September or February, booked 89 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from O'Hare Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 30 April 2025.

Round-trip from

£154

One-way from

£74

Popular in

March

Cheapest in

September

Average price

£222

Good one-way deal

£107 or less
Alaska Airlines
  • Alaska Airlines
  • 4/6-11/6
  • Nonstop
  • 9h 16m total
  • Chicago to San Francisco
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Southwest
  • Southwest
  • 30/5
  • 1 total stop
  • 6h 25m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a one-way flight from Chicago O'Hare Intl to San Francisco.
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Find flight deals from O'Hare Intl to San Francisco

Cheapest flights from O'Hare Intl to San Francisco
Explore the most affordable flight options available from O'Hare Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Wed 4/619:59ORD - SFO
Nonstop4h 50mAlaska Airlines
Wed 11/612:33SFO - ORD
Nonstop4h 26mAlaska Airlines
Deal found 29/4£154
Wed 7/518:58ORD - SFO
Nonstop4h 59mHawaiian Airlines
Sat 10/512:43SFO - ORD
Nonstop4h 27mHawaiian Airlines
Deal found 30/4£163
Thu 22/507:20ORD - SFO
Nonstop4h 42mUnited Airlines
Mon 26/505:05SFO - ORD
Nonstop4h 27mUnited Airlines
Deal found 30/4£169
Wed 27/812:40ORD - SFO
1 stop7h 15mSouthwest
Sun 31/806:00SFO - ORD
1 stop7h 35mSouthwest
Deal found 30/4£180
Fri 13/614:00ORD - SFO
1 stop10h 33mDelta
Mon 16/613:45SFO - ORD
1 stop8h 18mDelta
Deal found 29/4£192
Fri 13/618:17ORD - SFO
1 stop6h 36mSun Country Air
Sun 15/623:59SFO - ORD
1 stop15h 22mSun Country Air
Deal found 29/4£198
Thu 15/513:33ORD - SFO
1 stop9h 27mAmerican Airlines
Fri 16/523:49SFO - ORD
Nonstop4h 17mAmerican Airlines
Deal found 29/4£301

Cheapflights Fare Finder

Customise your flight search to find flights from O'Hare Intl 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 858,174 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Francisco that are best for you.

Fly from

O'Hare Intl

Fly to

San Francisco

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 4/6

19:59-22:49

Nonstop4h 50m

San Francisco

Wed 11/6

12:33-18:59

Nonstop4h 26m

£154

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 22/5

07:20-10:02

Nonstop4h 42m

San Francisco

Mon 26/5

05:05-11:32

Nonstop4h 27m

£169

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 10/5

06:00-13:32

1 stop9h 32m

San Francisco

Sat 17/5

12:33-18:59

Nonstop4h 26m

£170

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 27/8

12:40-17:55

1 stop7h 15m

San Francisco

Sun 31/8

06:00-15:35

1 stop7h 35m

£180

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 13/6

14:00-22:33

1 stop10h 33m

San Francisco

Mon 16/6

13:45-00:03

1 stop8h 18m

£192

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 13/6

18:17-22:53

1 stop6h 36m

San Francisco

Sun 15/6

23:59-17:21

1 stop15h 22m

£198

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 15/5

13:33-21:00

1 stop9h 27m

San Francisco

Fri 16/5

23:49-06:06

Nonstop4h 17m

£301

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 18/6

19:18-22:06

Nonstop4h 48m

£74

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 23/5

07:20-10:02

Nonstop4h 42m

£76

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 3/6

18:55-23:20

1 stop6h 25m

£81

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 15 results
1
2

Best time to book a flight from O'Hare Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from O'Hare Intl 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 O'Hare Intl Airport to San Francisco

How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Francisco?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to San Francisco. Price data was last updated on 25 April 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £538). Flying from Chicago O'Hare Intl Airport to San Francisco in July is currently the most expensive (average of £803). 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 ORD to SFO?

Find hourly flight availability from O'Hare Intl 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 30 April 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 52% on flights from Chicago O'Hare Intl Airport to San Francisco by exploring options for tickets at midday.

Weekly flight availability from Chicago O'Hare Intl Airport to San Francisco

Explore weekly flight availability from O'Hare Intl 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 30 April 2025.

The most flights from ORD to SFO are scheduled on a Tuesday (70 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 30 April 2025.
To help decide which airline to fly from Chicago to San Francisco, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
9,968 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
9,968 reviews
Alaska Airlines
8.0
Very Good
9,968 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,295 reviews
Alaska Airlines
8.0
Very Good
9,968 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,936 reviews
Alaska Airlines
8.0
Very Good
9,968 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,406 reviews
Alaska Airlines
8.0
Very Good
9,968 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very Good
9,968 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl?

    San Francisco (SFO) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to San Francisco. You should not have trouble finding flights to San Francisco from Chicago O'Hare Intl; the airport handles an average of 34 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights to the San Francisco airport from Chicago O'Hare Intl. It is only a 11.8 mi journey from San Francisco (SFO) to San Francisco’s city center.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to San Francisco round-trip?

    Cheapflights users have booked flights from Chicago O'Hare Intl Airport to San Francisco round-trip from £154. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from £163, and United Airlines, from £169. You may be able to fly from Chicago O'Hare Intl Airport to San Francisco for 36% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to San Francisco one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at £74. United Airlines flights start at £76 while deals on Alaska Airlines start at £81 one-way.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to San Francisco?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to San Francisco on time: ANA (97%), Air China (94%), China Southern (89%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to San Francisco?

    While on average a flight from Chicago O'Hare Intl Airport to San Francisco is generally £195, our data shows the cheapest flight currently is £82. When looking at the most popular route, (Chicago O'Hare Intl - San Francisco), you can expect to pay £157 for that flight.

  • Can I find deals for flights from O'Hare Intl to San Francisco that include hotel bookings?

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

  • How can I find direct flights from O'Hare Intl to San Francisco?

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

  • Can I find deals for business class flights from O'Hare Intl to San Francisco?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl Airport to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of £538). Flying from Chicago O'Hare Intl Airport to San Francisco in July is currently the most expensive (average of £803). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Santa Cruz
Los Banos
Vallejo
Newark
South San Francisco
Pacific Grove
Union City

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for O'Hare Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
O'Hare Intl to Los Angeles flights

Top airline flying from O'Hare Intl to San Francisco

Discover the top airline that operate flights from O'Hare Intl 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 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£205Average£360FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from O'Hare Intl to San Francisco?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from O'Hare Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to San Francisco?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to San Francisco for you. Better yet — we are completely free to use.

Can Cheapflights find flights from O'Hare Intl to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from O'Hare Intl to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from O'Hare Intl to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from O'Hare Intl today and book when prices fit your budget.

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