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Cheap flights from Chicago O'Hare Intl Airport to San Francisco Bay Area from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to San Francisco Bay Area departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to San Francisco Bay Area

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:55 am - 12:27 am
ORD
-
SFO
15h 32m
1 stop
Frontier Logo
6:00 am - 8:37 pm
SFO
-
ORD
12h 37m
1 stop
$233Frontier
Fri, Apr 17 - Thu, May 7
Frontier Logo
9:42 pm - 8:01 am
ORD
-
SFO
12h 19m
1 stop
Frontier Logo
8:30 pm - 6:19 am
SFO
-
ORD
7h 49m
1 stop
$234Frontier
Tue, Jun 2 - Wed, Jun 17
Frontier Logo
12:05 pm - 11:04 pm
ORD
-
SFO
12h 59m
1 stop
Frontier Logo
8:48 pm - 6:39 am
SFO
-
ORD
7h 51m
1 stop
$235Frontier
Sat, May 9 - Sun, May 17
United Airlines Logo
9:33 pm - 12:30 am
ORD
-
SFO
4h 57mnonstop
United Airlines Logo
6:34 pm - 12:59 am
SFO
-
ORD
4h 25mnonstop
$237United Airlines
Wed, Jun 3 - Tue, Jun 9
Alaska Airlines Logo
7:59 pm - 10:17 am
ORD
-
OAK
16h 18m
1 stop
Alaska Airlines Logo
6:41 am - 1:13 pm
OAK
-
ORD
28h 32m
1 stop
$255Alaska Airlines
Fri, May 1 - Sun, May 3
Southwest Logo
4:50 pm - 10:35 pm
ORD
-
OAK
7h 45m
1 stop
Southwest Logo
3:00 pm - 11:55 pm
OAK
-
ORD
6h 55m
1 stop
$257Southwest
Tue, Apr 28 - Tue, May 5
Southwest Logo
11:55 am - 8:20 pm
ORD
-
OAK
10h 25m
2 stops
Southwest Logo
1:50 pm - 10:55 pm
OAK
-
ORD
7h 05m
1 stop
$262Southwest
Tue, Apr 28 - Tue, May 5
Alaska Airlines Logo
3:52 pm - 10:23 pm
ORD
-
OAK
8h 31m
1 stop
Alaska Airlines Logo
6:02 am - 6:50 pm
OAK
-
ORD
10h 48m
1 stop
$270Alaska Airlines
Tue, May 12 - Sat, May 16
United Airlines Logo
7:45 pm - 10:30 pm
ORD
-
SJC
4h 45mnonstop
United Airlines Logo
2:32 pm - 12:44 am
SJC
-
ORD
8h 12m
1 stop
$278United Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
5:00 am - 10:10 am
ORD
-
SJC
7h 10m
1 stop
American Airlines Logo
2:34 pm - 12:42 am
SJC
-
ORD
8h 08m
1 stop
$285American Airlines
Tue, May 19 - Sat, May 23

Frontier flights from Chicago O'Hare Intl Airport to San Francisco Bay Area

Our best Frontier deals on Chicago O'Hare Intl Airport to San Francisco Bay Area flight tickets
Frontier
Apr 17
ORD10:55 amChicago O'Hare Intl
15h 32m
1 stop
SFO12:27 amSan Francisco
May 7
SFO6:00 amSan Francisco
12h 37m
1 stop
ORD8:37 pmChicago O'Hare Intl
$233
Frontier
Jun 2
ORD9:42 pmChicago O'Hare Intl
12h 19m
1 stop
SFO8:01 amSan Francisco
Jun 17
SFO8:30 pmSan Francisco
7h 49m
1 stop
ORD6:19 amChicago O'Hare Intl
$234
Frontier
May 9
ORD12:05 pmChicago O'Hare Intl
12h 59m
1 stop
SFO11:04 pmSan Francisco
May 17
SFO8:48 pmSan Francisco
7h 51m
1 stop
ORD6:39 amChicago O'Hare Intl
$235

United Airlines flights from Chicago O'Hare Intl Airport to San Francisco Bay Area

Our best United Airlines deals on Chicago O'Hare Intl Airport to San Francisco Bay Area flight tickets
United Airlines
Jun 3
ORD9:33 pmChicago O'Hare Intl
4h 57m
SFO12:30 amSan Francisco
Jun 9
SFO6:34 pmSan Francisco
4h 25m
ORD12:59 amChicago O'Hare Intl
$237
United Airlines
May 6
ORD3:45 pmChicago O'Hare Intl
4h 53m
SFO6:38 pmSan Francisco
May 9
SFO6:30 amSan Francisco
4h 27m
ORD12:57 pmChicago O'Hare Intl
$251
United Airlines
Apr 30
ORD6:20 amChicago O'Hare Intl
4h 51m
SFO9:11 amSan Francisco
May 7
SFO11:10 pmSan Francisco
4h 30m
ORD5:40 amChicago O'Hare Intl
$265

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to San Francisco Bay Area 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, momondo users made 832,500 searches. Data last updated April 3, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Francisco Bay Area that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 4/17

10:55 am-12:27 am

1 stop15h 32m

San Francisco

Thu 5/7

6:00 am-8:37 pm

1 stop12h 37m

$233

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 6/2

9:42 pm-8:01 am

1 stop12h 19m

San Francisco

Wed 6/17

8:30 pm-6:19 am

1 stop7h 49m

$234

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 5/9

12:05 pm-11:04 pm

1 stop12h 59m

San Francisco

Sun 5/17

8:48 pm-6:39 am

1 stop7h 51m

$235
Quickest round-trip

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 6/3

9:33 pm-12:30 am

Nonstop4h 57m

San Francisco

Tue 6/9

6:34 pm-12:59 am

Nonstop4h 25m

$237

ChicagoOakland

ORD - OAK

ORDOAK

Chicago O'Hare Intl

Fri 5/1

7:59 pm-10:17 am

1 stop16h 18m

Oakland

Sun 5/3

6:41 am-1:13 pm

1 stop28h 32m

$255

ChicagoOakland

ORD - OAK

ORDOAK

Chicago O'Hare Intl

Tue 4/28

4:50 pm-10:35 pm

1 stop7h 45m

Oakland

Tue 5/5

3:00 pm-11:55 pm

1 stop6h 55m

$257

ChicagoOakland

ORD - OAK

ORDOAK

Chicago O'Hare Intl

Tue 4/28

11:55 am-8:20 pm

2 stops10h 25m

Oakland

Tue 5/5

1:50 pm-10:55 pm

1 stop7h 05m

$262

ChicagoOakland

ORD - OAK

ORDOAK

Chicago O'Hare Intl

Tue 5/12

3:52 pm-10:23 pm

1 stop8h 31m

Oakland

Sat 5/16

6:02 am-6:50 pm

1 stop10h 48m

$270

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Wed 5/27

7:45 pm-10:30 pm

Nonstop4h 45m

San Jose

Wed 6/3

2:32 pm-12:44 am

1 stop8h 12m

$278

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Tue 5/19

5:00 am-10:10 am

1 stop7h 10m

San Jose

Sat 5/23

2:34 pm-12:42 am

1 stop8h 08m

$285

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco Bay Area from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to San Francisco Bay Area

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco Bay Area?

In general, May is the cheapest month to fly from Chicago O'Hare Intl Airport to San Francisco Bay Area. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $297. If you aren’t able to travel to San Francisco Bay Area during the month of May, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $304.

What is the cheapest day to depart on your flight to San Francisco Bay Area?

On average, the least expensive day to fly to San Francisco Bay Area from Chicago O'Hare Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $369. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $589.

What is the cheapest time of day to depart on your flight to San Francisco Bay Area?

Our most recent data shows that the best time of day to fly to San Francisco Bay Area is in the morning. Flights from Chicago O'Hare Intl Airport to San Francisco Bay Area during this time can be as low as $405. In contrast, the most expensive time of day to depart to San Francisco Bay Area is in the afternoon when prices are around $534.

What is the cheapest Chicago O'Hare Intl to San Francisco Bay Area flight route?

Fly from Chicago O'Hare Intl to San Jose for the best Chicago O'Hare Intl - San Francisco Bay Area flight prices

How far in advance should I book a flight to San Francisco Bay Area?

You are more likely to see cheaper flights to San Francisco Bay Area from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco Bay Area for around $348 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco Bay Area from Chicago O'Hare Intl Airport for as low as $256 on momondo.

What cabin class options are available on Chicago O'Hare Intl to San Francisco Bay Area flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to San Francisco Bay Area flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to San Francisco Bay Area flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to San Francisco Bay Area.

Cheap Chicago O'Hare Intl Airport to San Francisco Bay Area flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to San Francisco Bay Area

Fastest flight time

4h 34m

Direct flights

Every day

Airports in San Francisco Bay Area

6 airports
The fastest flight from Chicago O'Hare Intl Airport to San Francisco Bay Area takes 4h 34m
Direct flights go from Chicago O'Hare Intl Airport to San Francisco Bay Area every day.
There are 6 airports in San Francisco Bay Area. From Chicago O'Hare Intl Airport there are direct flights to San Francisco (SFO), San Jose (SJC).
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to San Francisco Bay Area

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to San Francisco Bay Area?

    Prices for flights from Chicago O'Hare Intl Airport to San Francisco Bay Area refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to San Francisco Bay Area?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to San Francisco Bay Area?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to San Francisco Bay Area.

  • What documentation or ID do you need to fly to San Francisco Bay Area?

    The travel and health documents you'll need for your trip to San Francisco Bay Area may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Bay Area. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to San Francisco Bay Area?

Best airlines flying from Chicago O'Hare Intl Airport to San Francisco Bay Area

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to San Francisco Bay Area with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $83Free CancellationRating
6.3
8,579 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,838 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $120Free CancellationRating
5.7
3,003 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,373 reviews
Search Delta flights
SouthwestPriceFrom $138Free CancellationRating
8.0
4,340 reviews
Search Southwest flights
JetBluePriceFrom $159Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $186Free CancellationRating
7.9
12,156 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.1
11,553 reviews
Search American Airlines flights
United AirlinesPriceFrom $208Free CancellationRating
7.4
9,536 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to San Francisco Bay Area?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco Bay Area from Chicago.

Can I find flights from Chicago to San Francisco Bay Area with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Francisco Bay Area from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to San Francisco Bay Area?

momondo helps you find the best flight between Chicago and San Francisco Bay Area by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to San Francisco Bay Area right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Francisco Bay Area from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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