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Cheap flights from San Francisco to Chicago O'Hare Intl Airport from £88

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
22 Jan — 29 Jan1
1 adult

Cheap flight deals from San Francisco to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to O'Hare Intl (ORD). 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 17 January 2025.

Round-trip from

£161

One-way from

£88

Popular in

November

Cheapest in

January

Average price

£249
Alaska Airlines
  • Alaska Airlines
  • 25/2-25/3
  • Nonstop
  • 9h 11m total
  • San Francisco to Chicago
Alaska Airlines
  • Alaska Airlines
  • 11/2
  • 1 total stop
  • 7h 16m total
  • San Francisco to Chicago
High demand for flights, 9% potential price rise
Best time to find cheap flights, 1% potential price drop
Average for round-trip flights in January 2025

Find flight deals from San Francisco to O'Hare Intl

Cheapest flights from San Francisco to O'Hare Intl
Explore the most affordable flight options available from San Francisco to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Tue 25/206:15SFO - ORD
Nonstop4h 23mUnited Airlines
Tue 25/310:36ORD - SFO
Nonstop5h 03mUnited Airlines
Deal found 15/1£161
Mon 17/300:22SFO - ORD
1 stop14h 16mFrontier
Fri 28/306:30ORD - SFO
1 stop9h 03mFrontier
Deal found 16/1£164
Wed 19/314:53SFO - ORD
1 stop7h 51mMultiple Airlines
Thu 27/318:56ORD - SFO
Nonstop4h 59mMultiple Airlines
Deal found 16/1£165
Wed 19/210:46SFO - ORD
Nonstop4h 12mAlaska Airlines
Mon 24/219:00ORD - SFO
Nonstop5h 10mAlaska Airlines
Deal found 16/1£166
Tue 18/300:15SFO - ORD
Nonstop4h 18mAmerican Airlines
Wed 26/320:20ORD - SFO
Nonstop4h 54mAmerican Airlines
Deal found 16/1£171
Wed 12/211:05SFO - ORD
2 stops9h 30mSouthwest
Sat 15/219:05ORD - SFO
1 stop6h 35mSouthwest
Deal found 17/1£199
Fri 21/200:40SFO - ORD
1 stop7h 48mDelta
Sun 23/206:15ORD - SFO
1 stop9h 05mDelta
Deal found 17/1£210
Sun 1/609:10SFO - ORD
1 stop7h 59mSun Country Air
Sun 8/620:10ORD - SFO
1 stop13h 58mSun Country Air
Deal found 16/1£299

Find flights from San Francisco to O'Hare Intl within your budget

Customise your flight search to find flights from San Francisco to O'Hare Intl 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 25/2

10:46-16:58

Nonstop4h 12m

Chicago O'Hare Intl

Tue 25/3

18:56-21:55

Nonstop4h 59m

£161

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 12/2

15:20-23:59

1 stop6h 39m

Chicago O'Hare Intl

Sat 15/2

16:00-19:00

Nonstop5h 00m

£162

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 17/3

00:22-16:38

1 stop14h 16m

Chicago O'Hare Intl

Fri 28/3

06:30-13:33

1 stop9h 03m

£164

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 19/3

14:53-00:44

1 stop7h 51m

Chicago O'Hare Intl

Thu 27/3

18:56-21:55

Nonstop4h 59m

£165

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 18/3

05:00-11:16

Nonstop4h 16m

Chicago O'Hare Intl

Tue 25/3

20:20-23:14

Nonstop4h 54m

£171

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 12/2

11:05-22:35

2 stops9h 30m

Chicago O'Hare Intl

Sat 15/2

19:05-23:40

1 stop6h 35m

£199

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 21/2

00:40-10:28

1 stop7h 48m

Chicago O'Hare Intl

Tue 25/2

10:10-18:06

1 stop9h 56m

£210

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 1/6

09:10-19:09

1 stop7h 59m

Chicago O'Hare Intl

Sun 8/6

20:10-08:08

1 stop13h 58m

£299

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 11/2

14:43-23:59

1 stop7h 16m

£88

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 6/3

22:36-04:54

Nonstop4h 18m

£89

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 14 results
1
2

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

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

Travel insights for flights from San Francisco to O'Hare Intl

Get recent, data-driven insights about flights from San Francisco to O'Hare Intl including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from San Francisco to O'Hare Intl. Price data was last updated on 10 January 2025.

The best time to book flights from San Francisco to Chicago O'Hare Intl Airport is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £595). Flying from San Francisco to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 SFO to ORD?

Find hourly flight availability from San Francisco to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

When flying from San Francisco to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from San Francisco to O'Hare Intl. 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 17 January 2025.

The most flights from SFO to ORD are scheduled on a Thursday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 17 January 2025.
See what other customers who have flown with American Airlines, Alaska Airlines and United Airlines from San Francisco to Chicago have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.1
Very Good
4,659 reviews
8.1
Very Good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very Good
9,683 reviews
8.1
Very Good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very Good
8,512 reviews
8.1
Very Good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.4
Good
8,965 reviews
8.1
Very Good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.2
Good
10,000 reviews
8.1
Very Good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from San Francisco to O'Hare Intl. 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 from for flights from San Francisco to Chicago O'Hare Intl?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Chicago O'Hare Intl. On average, San Francisco has 41 outbound flights to Chicago O'Hare Intl per day from 0 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    Alaska Airlines, at £161, was found to be the cheapest airline from San Francisco to Chicago O'Hare Intl Airport.Alternate airlines flying return to your destination include United Airlines and Frontier. Alaska Airlines is currently priced 48% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at £88. United Airlines flights start at £89 while deals on Delta start at £106 one-way.

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

    The top 3 most reliable airlines when flying from San Francisco to Chicago O'Hare Intl Airport are China Southern (97%), Royal Jordanian (90%) and Iberia (90%).

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

    Looking at all options, your cheapest flight can be booked for £105. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for £177 on average our data indicates £162 when flying from San Francisco to Chicago O'Hare Intl Airport.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of £595). Flying from San Francisco to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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
Evanston
Downers Grove
Schaumburg
Elk Grove Village
Beloit
Rosemont

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Alternative routes for San Francisco to O'Hare Intl

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Deals for San Francisco to O'Hare Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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Yes, we can. To see specific flights from San Francisco to O'Hare Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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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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