HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$105+ Cheap flights from San Francisco (SFO) to O'Hare Intl (ORD)

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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ORD
Jun 18 — Jun 251
Wed 6/18
Wed 6/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Francisco to Chicago O'Hare Intl are usually found in January or April, booked 67 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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 June 13, 2025.

Round-trip from

$207
(American Airlines)

One-way from

$105
(Southwest)

Popular in

December

Cheapest in

January

Average price

$385

Good round-trip deal

$290 or less

Good one-way deal

$148 or less
From San Francisco to Chicago O'Hare Intl
Search Deals
One-way flight from San Francisco to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to Chicago O'Hare Intl.
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 June 13, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/811:47 pmSFO - ORD
Nonstop4h 18mAmerican Airlines
Fri 7/116:45 amORD - SFO
Nonstop4h 33mAmerican Airlines
Deal found 6/11$207
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:53 pmSFO - ORD
1 stop8h 47mHawaiian Airlines
Sat 8/167:18 pmORD - SFO
Nonstop4h 48mHawaiian Airlines
Deal found 6/11$208
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/309:00 pmSFO - ORD
1 stop12h 50mSouthwest
Wed 7/95:25 pmORD - SFO
1 stop7h 45mSouthwest
Deal found 6/10$213
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2211:55 amSFO - ORD
Nonstop4h 23mAlaska Airlines
Fri 7/257:18 pmORD - SFO
Nonstop4h 48mAlaska Airlines
Deal found 6/11$217
This WAYA deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/146:40 pmSFO - ORD
1 stop9h 23mMultiple Airlines
Tue 7/227:18 pmORD - SFO
Nonstop4h 48mMultiple Airlines
Deal found 6/12$221
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/112:55 pmSFO - ORD
Nonstop4h 23mUnited Airlines
Sat 7/196:20 pmORD - SFO
Nonstop4h 49mUnited Airlines
Deal found 6/12$241
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/45:45 amSFO - ORD
1 stop13h 11mFrontier
Sat 7/121:39 pmORD - SFO
1 stop8h 00mFrontier
Deal found 6/11$242
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/301:30 pmSFO - ORD
1 stop6h 39mDelta
Thu 7/106:00 amORD - SFO
1 stop9h 25mDelta
Deal found 6/11$288

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 13, 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 7/8

11:47 pm-6:05 am

Nonstop4h 18m

Chicago O'Hare Intl

Fri 7/11

6:45 am-9:18 am

Nonstop4h 33m

$207

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 8/13

11:55 am-6:18 pm

Nonstop4h 23m

Chicago O'Hare Intl

Tue 8/19

1:03 pm-9:12 pm

1 stop10h 09m

$208

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 7/15

11:55 am-6:18 pm

Nonstop4h 23m

Chicago O'Hare Intl

Wed 7/16

7:18 pm-10:06 pm

Nonstop4h 48m

$209

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 6/30

9:00 pm-11:50 am

1 stop12h 50m

Chicago O'Hare Intl

Wed 7/9

6:55 pm-11:30 pm

1 stop6h 35m

$213

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 7/14

6:40 pm-6:03 am

1 stop9h 23m

Chicago O'Hare Intl

Tue 7/22

7:18 pm-10:06 pm

Nonstop4h 48m

$221

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 7/11

2:55 pm-9:18 pm

Nonstop4h 23m

Chicago O'Hare Intl

Sat 7/19

6:20 pm-9:09 pm

Nonstop4h 49m

$241

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 7/4

5:45 am-8:56 pm

1 stop13h 11m

Chicago O'Hare Intl

Sat 7/12

1:39 pm-7:39 pm

1 stop8h 00m

$242

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 7/10

12:50 am-8:25 am

1 stop5h 35m

Chicago O'Hare Intl

Fri 7/18

7:20 pm-12:03 am

1 stop6h 43m

$322

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 6/30

9:00 pm-11:50 am

1 stop12h 50m

$105

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 7/14

11:55 am-6:18 pm

Nonstop4h 23m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
1
2

The best insider tips for San Francisco to Chicago O'Hare Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Chicago O'Hare Intl Airport trip
Airlines
United Airlines

Basic Economy allows a personal item only; no carry-on bags unless exceptions apply.


Economy Plus offers extra legroom seats towards the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Alaska Airlines

Saver Fare allows a carry-on bag onboard, unlike many basic economy products.


Alaska's Wi-Fi is a flat fee, making it a bargain for longer flights.

Read more about Alaska Airlinesby Robert Schrader
Airports
SFO

Save time at SFO by using the AirTrain Red Line to quickly navigate between terminals and security checkpoints.

Read more about SFOby Harriet Baskas
ORD

For a quick city transfer from ORD, consider taking the “L” train to avoid Chicago traffic delays.

Read more about ORDby Ramsey Qubein
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 round-trip 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 round-trip flight from San Francisco to O'Hare Intl. Price data was last updated on June 9, 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 month to book a flight from San Francisco to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $245). Flying from San Francisco to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 June 13, 2025.

One of the essential ways to save on airfare from San Francisco to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

What is the cheapest day to fly from San Francisco to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to O'Hare Intl. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their San Francisco to Chicago O'Hare Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 June 13, 2025.

The most flights from SFO to ORD are scheduled on a Monday (93 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (52 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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 13, 2025.
Read through reviews of airlines operating flights from San Francisco to Chicago, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

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

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

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?

    If you book a flight to Chicago O'Hare Intl from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 77 flights from San Francisco to Chicago O'Hare Intl per day from 8 different airlines.

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

    According to our current data, American Airlines ($207), Alaska Airlines ($208), and Hawaiian Airlines ($209) offers the cheapest pricing from San Francisco to Chicago O'Hare Intl Airport. American Airlines is priced at 44% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from San Francisco to Chicago O'Hare Intl Airport are Southwest ($105), United Airlines ($109), and Hawaiian Airlines ($117).

  • 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, check out the most reliable airlines to get you to your destination on time: Fiji Airways (100%), China Southern (91%), Alaska Airlines( 89%).

  • 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 $101. While the most popular route (San Francisco - Chicago O'Hare Intl) can be booked for $179 on average our data indicates $1,218 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 vacation 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, August is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $245). Flying from San Francisco to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
Beloit
Elgin
Racine
Skokie
Arlington Heights
Rockford
Naperville
Orland Park
Elk Grove Village
Tinley Park
Northbrook
Joliet
Merrillville
Bridgeview
Glenview
Des Plaines
Lake Geneva

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
Ontario to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
San Francisco to Midway flights
Burbank to O'Hare Intl flights
San Diego to O'Hare Intl flights
Oakland to O'Hare Intl flights
San Jose to O'Hare Intl flights
Los Angeles to Midway flights
Sacramento to O'Hare Intl flights
Ontario to Midway flights
Las Vegas to O'Hare Intl flights
San Diego to Midway flights
Long Beach to O'Hare Intl flights
San Jose to Midway flights
Santa Ana to Midway flights
Oakland to Midway flights
Sacramento to Midway flights
Las Vegas to Midway flights
Burbank to Midway flights
Fresno to O'Hare Intl flights
Palm Springs to O'Hare Intl flights
Reno to O'Hare Intl flights
Long Beach to Midway flights
Fresno to Midway flights
Santa Barbara to O'Hare Intl flights
Palm Springs to Midway flights
Reno to Midway flights
San Luis Obispo to O'Hare Intl flights
Medford to O'Hare Intl flights
Monterey to O'Hare Intl flights
Los Angeles to Rockford flights
Bakersfield to O'Hare Intl flights
Medford to Midway flights
San Jose to Rockford flights
Santa Rosa to O'Hare Intl flights
Arcata to O'Hare Intl flights
Oakland to Rockford flights
Las Vegas to Rockford flights
Sacramento to Rockford flights
Burbank to Rockford flights
San Diego to Rockford flights
Redding to O'Hare Intl flights
Yuma to O'Hare Intl flights
Tijuana to O'Hare Intl flights
San Francisco to Rockford flights
Tijuana to Midway flights
Bakersfield to Midway flights

Top 8 airlines flying from San Francisco to O'Hare Intl

Discover the top 8 airlines that operate flights from San Francisco to O'Hare Intl. 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 2,558,603 searches. Data last updated June 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$108Average$288FlexibilityNo cancel feeOn-time85%
FrontierCheapest$126Average$205FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$143Average$226FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$168Average$339FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$198Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$202Average$421FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$288FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$242Average$312FlexibilityNo cancel feeOn-time63%

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.