Find Cheap Flights from San Francisco to Chicago O'Hare International (SFO - ORD)

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Thu 12/14
Thu 12/21
Any month
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Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
June
Most popular time to fly
16%
expected price increase
Average Price:
$758
(avg. price over the last 2 weeks)
Good Deal:
$758
or less (round trip)

When to Book Flights from San Francisco to Chicago O'Hare International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

The cheapest flight from San Francisco to Chicago O'Hare International was found 27 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is January.
Morning departure is around 7% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Chicago O'Hare International Flights

How long does a flight from San Francisco to Chicago O'Hare International take?
An average nonstop flight takes 4h 12m, covering a distance of 1842 miles.
How many flights are there between San Francisco and Chicago O'Hare International?
There are 1,514 (nonstop) flights between San Francisco and Chicago O'Hare International per week, averaging 221 per day.
Which airlines provide the cheapest flights from San Francisco to Chicago O'Hare International?
In the past 3 days, the cheapest round-trip tickets were found on American Airlines ($107) and Multiple Airlines ($142)
Do I need a passport to fly between San Francisco and Chicago O'Hare International?
No.
Which airlines fly most frequently between San Francisco and Chicago O'Hare International?
United (31 times daily), Air New Zealand (29 times daily), Air Canada (29 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Francisco to Chicago O'Hare International?
For San Francisco to Chicago O'Hare International, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Chicago O'Hare International back to San Francisco, the best deals are generally found on Thursday, with Friday being the most expensive.

Book cheap flights from San Francisco to Chicago O'Hare International (round-trip)

Airports
Origin
San Francisco
$107
only
$107
Destination
Chicago
$107
only
$107
Sat, Dec 16
SFO
ORD
4h 14m
Sun, Dec 17
ORD
SFO
4h 48m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Excellent 10.0

I really like the 737..the seats were so comfortable. I miss the old school planes when things were quality. The seat declined further and the headrest was comfortable and not too tall. And I especially loved the service of our flight attendants. Overall this was a very quality flight.

SFO
ORD
Okay 4.6

Four and a half hours on board and just a cookie? Really!?

SFO
ORD
Mediocre 2.0

Normally a kayak super fan

Missed first leg of a return flight to london. Was given no options for rebook and my RETURN flight was also cancelled. Iberdola flight operated by American, ticketed by airfare.com. I've never heard of a product where you have to consume one piece in order to be allowed to consume the other you already bought. Legal basis seems very suspect. Do not fly with airfare.com and be wary of kayak vendors unfortunately.

SFO
ORD
Excellent 10.0

New plane, early departures, nice crew, terrific entertainment system.

SFO
ORD
Mediocre 3.6

Crew was really good

Other than the crew everything is really bad.

Wed, Jan 17
SFO
ORD
4h 22m
Tue, Jan 23
ORD
SFO
15h 26m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jan 25
SFO
ORD
4h 22m
Sat, Feb 3
ORD
SFO
4h 52m
Trip: 10 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Mediocre 2.0

Normally a kayak super fan

Missed first leg of a return flight to london. Was given no options for rebook and my RETURN flight was also cancelled. Iberdola flight operated by American, ticketed by airfare.com. I've never heard of a product where you have to consume one piece in order to be allowed to consume the other you already bought. Legal basis seems very suspect. Do not fly with airfare.com and be wary of kayak vendors unfortunately.

SFO
ORD
Excellent 10.0

New plane, early departures, nice crew, terrific entertainment system.

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Okay 4.6

Four and a half hours on board and just a cookie? Really!?

SFO
ORD
Excellent 8.8

In flight movies were varied, with both new and international films to watch. Flight attendants were nice. Boarding was smooth.

Spent a while sitting on the plane waiting to take off because of some kind of delay, but that meant I could spend more time watching the in-flight entertainment.

Tue, Jan 30
SFO
ORD
4h 12m
Fri, Feb 2
ORD
SFO
4h 51m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Okay 4.6

Four and a half hours on board and just a cookie? Really!?

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Excellent 10.0

Everyone was so friendly and helpful, especially Ricardo at the check in desk. Our flight was delayed for 2 hours but the friendly staff made it easier to deal with the delay!

SFO
ORD
Excellent 10.0

Lots on in-flight entertainment.

Nothing, I pretty much just slept the whole time.

SFO
ORD
Excellent 8.0

We thought we were going to be flying on British Airways American Airways.

Wed, Jan 31
SFO
ORD
4h 22m
Sat, Feb 3
ORD
SFO
4h 52m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Excellent 10.0

New plane, early departures, nice crew, terrific entertainment system.

SFO
ORD
Excellent 10.0

Lots on in-flight entertainment.

Nothing, I pretty much just slept the whole time.

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Excellent 10.0

Everyone was so friendly and helpful, especially Ricardo at the check in desk. Our flight was delayed for 2 hours but the friendly staff made it easier to deal with the delay!

SFO
ORD
Okay 4.6

Not much

SFO employee told me wrong gate as gate number changed. Missed flight. Layover in Chicago delayed 3.5 hours.

Thu, Jan 18
SFO
ORD
4h 16m
Tue, Jan 23
ORD
SFO
15h 26m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 1
SFO
ORD
4h 22m
Tue, Feb 6
ORD
SFO
4h 52m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Mediocre 2.0

Normally a kayak super fan

Missed first leg of a return flight to london. Was given no options for rebook and my RETURN flight was also cancelled. Iberdola flight operated by American, ticketed by airfare.com. I've never heard of a product where you have to consume one piece in order to be allowed to consume the other you already bought. Legal basis seems very suspect. Do not fly with airfare.com and be wary of kayak vendors unfortunately.

SFO
ORD
Excellent 10.0

Lots on in-flight entertainment.

Nothing, I pretty much just slept the whole time.

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Mediocre 3.6

My flight was delayed. I felt lucky when they gave me a place in a plane leaving 1 hour earlier. But that flight was delayed twice because of mechanical problems: the first time we had to go back to the gate and the second time we stayed on the runway just before take off Not enough room in overhead bins. They asked people to check small suitcase or bag.

SFO
ORD
Excellent 10.0

Everyone was so friendly and helpful, especially Ricardo at the check in desk. Our flight was delayed for 2 hours but the friendly staff made it easier to deal with the delay!

Sat, Jan 20
SFO
ORD
4h 12m
Tue, Jan 23
ORD
SFO
15h 26m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 2
SFO
ORD
4h 12m
Sat, Feb 10
ORD
SFO
4h 51m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Mediocre 3.6

My flight was delayed. I felt lucky when they gave me a place in a plane leaving 1 hour earlier. But that flight was delayed twice because of mechanical problems: the first time we had to go back to the gate and the second time we stayed on the runway just before take off Not enough room in overhead bins. They asked people to check small suitcase or bag.

SFO
ORD
Okay 4.6

Not much

SFO employee told me wrong gate as gate number changed. Missed flight. Layover in Chicago delayed 3.5 hours.

SFO
ORD
Excellent 10.0

Everyone was so friendly and helpful, especially Ricardo at the check in desk. Our flight was delayed for 2 hours but the friendly staff made it easier to deal with the delay!

SFO
ORD
Excellent 8.0

We thought we were going to be flying on British Airways American Airways.

SFO
ORD
Excellent 10.0

I really like the 737..the seats were so comfortable. I miss the old school planes when things were quality. The seat declined further and the headrest was comfortable and not too tall. And I especially loved the service of our flight attendants. Overall this was a very quality flight.

Sat, Feb 17
SFO
ORD
4h 12m
Tue, Feb 20
ORD
SFO
15h 26m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Feb 3
SFO
ORD
4h 30m
Thu, Feb 8
ORD
SFO
4h 51m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Excellent 10.0

I really like the 737..the seats were so comfortable. I miss the old school planes when things were quality. The seat declined further and the headrest was comfortable and not too tall. And I especially loved the service of our flight attendants. Overall this was a very quality flight.

SFO
ORD
Mediocre 3.6

My flight was delayed. I felt lucky when they gave me a place in a plane leaving 1 hour earlier. But that flight was delayed twice because of mechanical problems: the first time we had to go back to the gate and the second time we stayed on the runway just before take off Not enough room in overhead bins. They asked people to check small suitcase or bag.

SFO
ORD
Excellent 10.0

Everyone was so friendly and helpful, especially Ricardo at the check in desk. Our flight was delayed for 2 hours but the friendly staff made it easier to deal with the delay!

SFO
ORD
Mediocre 2.0

Normally a kayak super fan

Missed first leg of a return flight to london. Was given no options for rebook and my RETURN flight was also cancelled. Iberdola flight operated by American, ticketed by airfare.com. I've never heard of a product where you have to consume one piece in order to be allowed to consume the other you already bought. Legal basis seems very suspect. Do not fly with airfare.com and be wary of kayak vendors unfortunately.

SFO
ORD
Excellent 10.0

New plane, early departures, nice crew, terrific entertainment system.

Thu, Feb 8
SFO
ORD
4h 22m
Sat, Feb 24
ORD
SFO
4h 51m
Trip: 17 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Excellent 10.0

Lots on in-flight entertainment.

Nothing, I pretty much just slept the whole time.

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Excellent 10.0

I really like the 737..the seats were so comfortable. I miss the old school planes when things were quality. The seat declined further and the headrest was comfortable and not too tall. And I especially loved the service of our flight attendants. Overall this was a very quality flight.

SFO
ORD
Mediocre 3.6

My flight was delayed. I felt lucky when they gave me a place in a plane leaving 1 hour earlier. But that flight was delayed twice because of mechanical problems: the first time we had to go back to the gate and the second time we stayed on the runway just before take off Not enough room in overhead bins. They asked people to check small suitcase or bag.

SFO
ORD
Excellent 8.8

In flight movies were varied, with both new and international films to watch. Flight attendants were nice. Boarding was smooth.

Spent a while sitting on the plane waiting to take off because of some kind of delay, but that meant I could spend more time watching the in-flight entertainment.

Thu, Feb 15
SFO
ORD
7h 13m
Tue, Feb 20
ORD
SFO
4h 51m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 12
SFO
ORD
4h 12m
Sat, Feb 24
ORD
SFO
4h 51m
Trip: 13 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Excellent 8.0

We thought we were going to be flying on British Airways American Airways.

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Excellent 10.0

New plane, early departures, nice crew, terrific entertainment system.

SFO
ORD
Mediocre 3.6

Crew was really good

Other than the crew everything is really bad.

SFO
ORD
Okay 4.6

Not much

SFO employee told me wrong gate as gate number changed. Missed flight. Layover in Chicago delayed 3.5 hours.

Sat, Feb 17
SFO
ORD
7h 13m
Tue, Feb 27
ORD
SFO
4h 51m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 14
SFO
ORD
4h 12m
Sat, Feb 17
ORD
SFO
4h 51m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Okay 4.6

Four and a half hours on board and just a cookie? Really!?

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Mediocre 3.6

My flight was delayed. I felt lucky when they gave me a place in a plane leaving 1 hour earlier. But that flight was delayed twice because of mechanical problems: the first time we had to go back to the gate and the second time we stayed on the runway just before take off Not enough room in overhead bins. They asked people to check small suitcase or bag.

SFO
ORD
Okay 4.6

Not much

SFO employee told me wrong gate as gate number changed. Missed flight. Layover in Chicago delayed 3.5 hours.

SFO
ORD
Excellent 10.0

Lots on in-flight entertainment.

Nothing, I pretty much just slept the whole time.

Wed, Feb 14
SFO
ORD
4h 22m
Tue, Feb 20
ORD
SFO
24h 57m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 15
SFO
ORD
4h 22m
Tue, Feb 20
ORD
SFO
4h 51m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Mediocre 3.6

Crew was really good

Other than the crew everything is really bad.

SFO
ORD
Excellent 10.0

Everyone was so friendly and helpful, especially Ricardo at the check in desk. Our flight was delayed for 2 hours but the friendly staff made it easier to deal with the delay!

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

SFO
ORD
Okay 4.6

Not much

SFO employee told me wrong gate as gate number changed. Missed flight. Layover in Chicago delayed 3.5 hours.

SFO
ORD
Excellent 8.0

We thought we were going to be flying on British Airways American Airways.

Thu, Jan 18
SFO
ORD
4h 16m
Sat, Jan 20
ORD
SFO
13h 50m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Feb 17
SFO
ORD
4h 12m
Wed, Feb 21
ORD
SFO
4h 51m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 82 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SFO
ORD
Excellent 10.0

Lots on in-flight entertainment.

Nothing, I pretty much just slept the whole time.

SFO
ORD
Excellent 10.0

I really like the 737..the seats were so comfortable. I miss the old school planes when things were quality. The seat declined further and the headrest was comfortable and not too tall. And I especially loved the service of our flight attendants. Overall this was a very quality flight.

SFO
ORD
Excellent 10.0

New plane, early departures, nice crew, terrific entertainment system.

SFO
ORD
Mediocre 3.6

Crew was really good

Other than the crew everything is really bad.

SFO
ORD
Mediocre 2.0

I'm getting to Madrid 24 hrs after I was supposed to

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We attempt to get accurate prices, however, prices are not guaranteed.

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If you have more questions or if you have a bad price to report to us,
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.