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Cheap flights from Chicago O'Hare Intl Airport to San Francisco from C$ 141

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
25 Feb — 4 Mar1
1 adult

The best prices from Chicago O'Hare Intl to San Francisco are usually found in September or January, booked 48 days in advance, depart on a Monday or Wednesday and return on a Thursday

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 20 February 2025.

Round-trip from

C$ 294

One-way from

C$ 141

Popular in

March

Cheapest in

September

Average price

C$ 439
Alaska Airlines
  • Alaska Airlines
  • 8/4-15/4
  • 1 total stop
  • 12h 44m total
  • Chicago to San Francisco
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Alaska Airlines
  • Alaska Airlines
  • 23/4
  • Nonstop
  • 4h 59m total
  • Chicago to San Francisco
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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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 20 February 2025.

Tue 8/46:56 p.m.ORD - SFO
Nonstop4h 59mAlaska Airlines
Tue 15/47:55 p.m.SFO - ORD
1 stop7h 45mAlaska Airlines
Deal found 20/2C$ 294
Tue 8/46:30 a.m.ORD - SFO
Nonstop4h 50mUnited Airlines
Thu 10/410:46 p.m.SFO - ORD
Nonstop4h 22mUnited Airlines
Deal found 19/2C$ 296
Fri 18/46:25 p.m.ORD - SFO
1 stop16h 01mDelta
Tue 22/410:59 p.m.SFO - ORD
1 stop6h 56mDelta
Deal found 19/2C$ 369
Thu 20/36:45 a.m.ORD - SFO
1 stop8h 48mFrontier
Sun 23/38:19 p.m.SFO - ORD
1 stop6h 45mFrontier
Deal found 18/2C$ 374
Wed 30/46:55 p.m.ORD - SFO
1 stop6h 25mSouthwest
Sat 3/511:25 a.m.SFO - ORD
2 stops9h 40mSouthwest
Deal found 18/2C$ 406
Thu 28/85:50 p.m.ORD - SFO
Nonstop4h 46mHawaiian Airlines
Mon 1/910:00 a.m.SFO - ORD
Nonstop4h 19mHawaiian Airlines
Deal found 19/2C$ 409
Thu 7/88:10 p.m.ORD - SFO
1 stop13h 58mSun Country Air
Sun 10/89:05 a.m.SFO - ORD
1 stop8h 06mSun Country Air
Deal found 19/2C$ 448

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

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 629,999 searches. Data last updated 20 February 2025.

Fly from

O'Hare Intl

Fly to

San Francisco

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 8/4

6:56 p.m.-9:55 p.m.

Nonstop4h 59m

San Francisco

Tue 15/4

7:55 p.m.-5:40 a.m.

1 stop7h 45m

C$ 294

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 8/4

6:30 a.m.-9:20 a.m.

Nonstop4h 50m

San Francisco

Thu 10/4

10:46 p.m.-5:08 a.m.

Nonstop4h 22m

C$ 296

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 18/4

6:25 p.m.-8:26 a.m.

1 stop16h 01m

San Francisco

Tue 22/4

10:59 p.m.-7:55 a.m.

1 stop6h 56m

C$ 369

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 20/3

6:45 a.m.-1:33 p.m.

1 stop8h 48m

San Francisco

Sun 23/3

8:19 p.m.-5:04 a.m.

1 stop6h 45m

C$ 374

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 30/4

6:55 p.m.-11:20 p.m.

1 stop6h 25m

San Francisco

Sat 3/5

11:25 a.m.-11:05 p.m.

2 stops9h 40m

C$ 406

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 10/3

7:00 p.m.-10:10 p.m.

Nonstop5h 10m

San Francisco

Thu 13/3

10:46 a.m.-4:58 p.m.

Nonstop4h 12m

C$ 422

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 7/8

8:10 p.m.-8:08 a.m.

1 stop13h 58m

San Francisco

Sun 10/8

9:05 a.m.-7:11 p.m.

1 stop8h 06m

C$ 448

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 3/3

8:37 p.m.-11:39 p.m.

Nonstop5h 02m

San Francisco

Wed 5/3

12:28 a.m.-6:34 a.m.

Nonstop4h 06m

C$ 560

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 23/4

6:58 p.m.-9:57 p.m.

Nonstop4h 59m

C$ 141

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 29/5

5:02 a.m.-9:45 a.m.

1 stop6h 43m

C$ 169

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 16 results
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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.

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

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

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 14 February 2025.

The best time to book flights from Chicago O'Hare Intl Airport to San Francisco is 48 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 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 C$ 276). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of C$ 379). 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 20 February 2025.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to San Francisco is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 44% on airfare.

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 20 February 2025.

The most flights from ORD to SFO are scheduled on a Thursday (64 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 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 mm 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 20 February 2025.
To help decide which airline to fly from Chicago to San Francisco, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,413 reviews
Check prices

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,413 reviews
Southwest
8.1
Very good
4,413 reviews
Check prices

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,691 reviews
Southwest
8.1
Very good
4,413 reviews
Check prices

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,227 reviews
Southwest
8.1
Very good
4,413 reviews
Check prices

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,413 reviews
Check prices

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

JetBlue
7.4
Good
3,071 reviews
Southwest
8.1
Very good
4,413 reviews
Check prices

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

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?

    If you book a flight to San Francisco from Chicago O'Hare Intl, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 19.0 km from the centre of San Francisco. There are 47 flights from Chicago O'Hare Intl to San Francisco per day from 2 different airlines.

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

    According to our current data, Alaska Airlines (C$ 294), United Airlines (C$ 296), and Delta (C$ 365) offers the cheapest pricing from Chicago O'Hare Intl Airport to San Francisco. These flights start at 37% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as C$ 141. Users have also found prices from C$ 169 and C$ 183 on United Airlines and Delta, respectively.

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

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to San Francisco are Air China (100%), ANA (92%) and Austrian Airlines (82%).

  • 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 C$ 276). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of C$ 379). 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
Richmond
San Ramon
Newark
Alameda
Novato
Burlingame
Redwood City
South San Francisco
San Bruno
Scotts Valley
Belmont
Millbrae
Santa Clara
Vallejo

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 2 airlines flying from O'Hare Intl to San Francisco

Discover the top 2 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 629,999 searches. Data last updated 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 183AverageC$ 372FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapestC$ 209AverageC$ 293FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

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

When you search for this flight from O'Hare Intl to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to San Francisco from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from O'Hare Intl to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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