Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Francisco to Chicago O'Hare Intl Airport from $164

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
9 Jul — 16 Jul1
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 4 July 2025.

Round-trip from

$315

One-way from

$164

Popular in

December

Cheapest in

January

Average price

$574

Good one-way deal

$235 or less
United Airlines
  • United Airlines
  • 9/9-12/9
  • Nonstop
  • 9h 02m total
  • San Francisco to Chicago
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 9/12
  • 1 total stop
  • 8h 40m total
  • San Francisco to Chicago
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a one-way flight from San Francisco to Chicago O'Hare Intl.
Search Deals

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 4 July 2025.

Tue 9/913:55SFO - ORD
Nonstop4h 18mUnited Airlines
Fri 12/916:30ORD - SFO
Nonstop4h 44mUnited Airlines
Deal found 2/7$315
Tue 26/812:45SFO - ORD
1 stop7h 35mSouthwest
Sun 31/807:30ORD - SFO
1 stop6h 25mSouthwest
Deal found 3/7$316
Mon 18/811:55SFO - ORD
Nonstop4h 23mAlaska Airlines
Mon 18/819:18ORD - SFO
Nonstop4h 48mAlaska Airlines
Deal found 2/7$321
Fri 26/921:19SFO - ORD
1 stop7h 44mHawaiian Airlines
Sat 27/912:05ORD - SFO
1 stop10h 14mHawaiian Airlines
Deal found 3/7$326
Thu 21/812:48SFO - ORD
1 stop9h 44mFrontier
Thu 28/806:00ORD - SFO
1 stop7h 29mFrontier
Deal found 2/7$341
Sat 16/823:08SFO - ORD
Nonstop4h 16mAmerican Airlines
Sat 23/806:45ORD - SFO
Nonstop4h 33mAmerican Airlines
Deal found 2/7$364
Sun 24/818:44SFO - ORD
1 stop23h 56mMultiple Airlines
Sat 30/807:00ORD - SFO
1 stop7h 25mMultiple Airlines
Deal found 3/7$390
Mon 18/800:40SFO - ORD
1 stop5h 44mDelta
Sun 24/805:45ORD - SFO
1 stop8h 00mDelta
Deal found 3/7$391

Cheapflights Fare Finder

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 647,157 searches. Data last updated 4 July 2025.
Use the filters below to find and compare flights from San Francisco to Chicago O'Hare Intl Airport that are best for you.

Fly from

San Francisco

Fly to

O'Hare Intl

Route

Depart

Return

Price

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 9/9

13:55-20:13

Nonstop4h 18m

Chicago O'Hare Intl

Fri 12/9

16:30-19:14

Nonstop4h 44m

$315

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 26/8

12:45-22:20

1 stop7h 35m

Chicago O'Hare Intl

Sun 31/8

07:30-11:55

1 stop6h 25m

$316

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 18/8

11:55-18:18

Nonstop4h 23m

Chicago O'Hare Intl

Mon 18/8

19:18-22:06

Nonstop4h 48m

$321

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 26/9

21:19-07:03

1 stop7h 44m

Chicago O'Hare Intl

Sat 27/9

12:05-20:19

1 stop10h 14m

$326

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 21/8

12:48-00:32

1 stop9h 44m

Chicago O'Hare Intl

Thu 28/8

06:00-11:29

1 stop7h 29m

$341

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 16/8

23:08-05:24

Nonstop4h 16m

Chicago O'Hare Intl

Sat 23/8

06:45-09:18

Nonstop4h 33m

$364

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 24/8

18:44-20:40

1 stop23h 56m

Chicago O'Hare Intl

Sat 30/8

07:00-12:25

1 stop7h 25m

$390

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 18/8

23:59-12:16

1 stop10h 17m

Chicago O'Hare Intl

Thu 21/8

18:13-23:43

1 stop7h 30m

$391

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 9/12

12:30-23:10

1 stop8h 40m

$164

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 4/8

23:25-05:39

Nonstop4h 14m

$166

Flights are sorted by cheapest return flights first.

Deals found on 3/7

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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Chicago O'Hare Intl Airport

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 27 June 2025.

The price you pay for your flight from San Francisco to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 4 July 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 4 July 2025.

The most flights from SFO to ORD are scheduled on a Thursday (93 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

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 4 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from San Francisco to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
4,266 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
7,982 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
8,844 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

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 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?

    San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from San Francisco; the airport handles an average of 54 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Francisco airport to Chicago O'Hare Intl. It is only a 19.0 km journey to San Francisco (SFO) from San Francisco’s city centre.

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

    Flying on United Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $315. Additional round-trip tickets that might be worth considering are offered by Southwest and Alaska Airlines, with the lowest prices starting at $316 and $321, respectively. These flights start at 43% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Hawaiian Airlines, with whom users have recently found tickets for as low as $164. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from San Francisco to Chicago O'Hare Intl Airport for a low price.

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

    Before booking your flight to Chicago O'Hare Intl Airport from San Francisco, have a look at the most reliable airlines to get you to your destination on time: Fiji Airways (100%), Alaska Airlines (87%), Asiana Airlines( 87%).

  • 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 $165. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for $316 on average our data indicates $310 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to O'Hare Intl

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

Cheapflights helps you search for flights from San Francisco to O'Hare Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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

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

Yes! Cheapflights helps users easily find flights from San Francisco to O'Hare Intl with no change fees.

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights