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$99+ Cheap flights from O'Hare Intl (ORD) to San Francisco (SFO)

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Francisco are usually found in April or May, booked 89 days in advance, depart on a Thursday or Friday and return on a Wednesday

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 June 12, 2025.

Round-trip from

$203
(American Airlines)

One-way from

$99
(United Airlines)

Popular in

March

Cheapest in

April

Average price

$318

Good round-trip deal

$236 or less

Good one-way deal

$141 or less
From Chicago O'Hare Intl to San Francisco
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One-way flight from Chicago O'Hare Intl to San Francisco
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to San Francisco.
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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 June 12, 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.
Fri 8/296:50 pmORD - SFO
Nonstop4h 43mAmerican Airlines
Mon 9/16:10 amSFO - ORD
Nonstop4h 20mAmerican Airlines
Deal found 6/11$203
This Southwest deal was found by Cheapflights users on 6/9. 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.
Sat 8/166:15 amORD - SFO
1 stop9h 30mSouthwest
Sat 8/239:05 pmSFO - ORD
1 stop12h 45mSouthwest
Deal found 6/9$204
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:18 pmORD - SFO
Nonstop4h 48mAlaska Airlines
Tue 9/167:55 pmSFO - ORD
1 stop9h 08mAlaska Airlines
Deal found 6/10$208
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/17:18 pmORD - SFO
Nonstop4h 48mHawaiian Airlines
Tue 7/2911:55 amSFO - ORD
Nonstop4h 23mHawaiian Airlines
Deal found 6/12$218
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/17:18 pmORD - SFO
Nonstop4h 48mMultiple Airlines
Sat 7/57:20 amSFO - ORD
1 stop13h 47mMultiple Airlines
Deal found 6/12$231
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/285:12 pmORD - SFO
1 stop7h 52mFrontier
Sat 10/181:20 pmSFO - ORD
1 stop7h 00mFrontier
Deal found 6/10$240
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.
Sat 7/123:54 pmORD - SFO
Nonstop4h 50mUnited Airlines
Tue 7/2211:55 pmSFO - ORD
Nonstop4h 20mUnited Airlines
Deal found 6/12$256
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/17:09 amORD - SFO
1 stop7h 43mDelta
Sat 7/56:05 amSFO - ORD
1 stop6h 58mDelta
Deal found 6/12$257
This Sun Country Air 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/286:10 amORD - SFO
1 stop7h 10mSun Country Air
Sun 7/611:55 pmSFO - ORD
1 stop10h 44mSun Country Air
Deal found 6/10$335

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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

Fri 8/29

6:50 pm-9:33 pm

Nonstop4h 43m

San Francisco

Mon 9/1

6:10 am-12:30 pm

Nonstop4h 20m

$203

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 8/16

6:15 am-1:45 pm

1 stop9h 30m

San Francisco

Sat 8/23

9:05 pm-11:50 am

1 stop12h 45m

$204

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 8/12

7:18 pm-10:06 pm

Nonstop4h 48m

San Francisco

Tue 9/16

7:55 pm-7:03 am

1 stop9h 08m

$208

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 8/6

7:00 am-12:24 pm

1 stop7h 24m

San Francisco

Sun 8/10

11:55 am-6:18 pm

Nonstop4h 23m

$227

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 7/1

7:18 pm-10:06 pm

Nonstop4h 48m

San Francisco

Sat 7/5

7:20 am-11:07 pm

1 stop13h 47m

$231

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 8/28

6:00 am-11:29 am

1 stop7h 29m

San Francisco

Mon 9/8

5:45 am-9:02 pm

1 stop13h 17m

$251

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 7/12

3:54 pm-6:44 pm

Nonstop4h 50m

San Francisco

Wed 7/23

6:43 pm-12:59 am

Nonstop4h 16m

$256

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 7/2

7:05 am-2:34 pm

1 stop9h 29m

San Francisco

Wed 7/9

11:39 am-9:30 pm

1 stop7h 51m

$267

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 6/28

6:10 am-11:20 am

1 stop7h 10m

San Francisco

Sun 7/6

11:55 pm-12:39 pm

1 stop10h 44m

$335

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 7/15

7:20 am-10:02 am

Nonstop4h 42m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 18 results
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The best insider tips for Chicago O'Hare Intl Airport to San Francisco 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 Chicago O'Hare Intl Airport to San Francisco trip
Airlines
United Airlines

United's Economy Plus offers extra legroom, enhancing comfort for travelers seeking more space.


United's Polaris Lounges provide exclusive amenities like showers and dining for premium passengers.

Read more about United Airlinesby Harriet Baskas
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort on medium-haul flights.


Alaska's Wi-Fi is a flat fee, ideal for business travelers needing connectivity during flights.

Read more about Alaska Airlinesby Robert Schrader
Airports
ORD

For a quick snack before your flight, grab some Garrett Popcorn near gate B8, a Chicago favorite.

Read more about ORDby Ramsey Qubein
SFO

Use BART for an affordable ride from SFO to downtown San Francisco, taking about 40 minutes.

Read more about SFOby Harriet Baskas
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 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 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 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 round-trip flight from O'Hare Intl to San Francisco. Price data was last updated on June 9, 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 53 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of $276). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of $364). 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 June 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from Chicago O'Hare Intl Airport to San Francisco by exploring options for tickets in the evening.

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

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

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to San Francisco flight should consider departing on Thursday evenings 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 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 June 12, 2025.

The most flights from ORD to SFO 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 (63 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 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Chicago to San Francisco, 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

Overall

8.0

Comfort

7.8

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.1

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

Overall

8.0

Comfort

7.8

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.1

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

Overall

8.0

Comfort

7.8

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.1

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.1

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

Overall

8.0

Comfort

7.8

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.1

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

Overall

8.0

Comfort

7.8

Entertainment

7.1

Food

7.1

Crew

8.5

Boarding

8.1

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?

    Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to San Francisco (SFO) should be relatively easy as there are 75 daily inbound flights from Chicago O'Hare Intl from 6 different airlines.

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

    Currently priced at $203, American Airlines will fly you from Chicago O'Hare Intl Airport to San Francisco and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Alaska Airlines - these airlines can fly you to your destination from $204 and $208, respectively. Users have found that American Airlines is 35% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to San Francisco are United Airlines ($99), Alaska Airlines ($102), and Southwest ($105).

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

    Consider Austrian Airlines (90%), ANA (90%) or Brussels Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to San Francisco.

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

    Looking at all options, your cheapest flight can be booked for $98. While the most popular route (Chicago O'Hare Intl - San Francisco) can be booked for $179 on average our data indicates $1,238 when flying from Chicago O'Hare Intl Airport to San Francisco.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of $276). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of $364). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

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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.
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Top 6 airlines flying from O'Hare Intl to San Francisco

Discover the top 6 airlines 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$108Average$226FlexibilityNo cancel feeOn-time85%
FrontierCheapest$124Average$205FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$320FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$167Average$287FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$315FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$197Average$357FlexibilityNo cancel feeOn-time69%

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