$123 Find Cheap Flights from San Francisco to Chicago O'Hare Airport - Compare and Save

These are the earliest and latest flight times available from San Francisco to Chicago O'Hare Intl Airport:

• Earliest: departs at 12:10 am and lands at 4:37 am
• Latest: departs at 11:51 pm and lands at 4:18 am.

The flight takes about 4h 27m.

Three cabin classes are available on flights from San Francisco to Chicago O'Hare Intl Airport:

• Economy Class
• Business Class
• First Class

A nonstop flight from San Francisco to Chicago O'Hare Intl Airport takes 4h 27m, covering 1,841 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from San Francisco to Chicago O'Hare Intl Airport range from $324 to $536, with an average of $412 over the past 12 months. Anything below $324 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 42% above the $412 route average. Book 6 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $265 round-trip via Denver Intl (DEN), compared to $420 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 757-300 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737-800 variants.

Morning is the busiest departure period on San Francisco to Chicago O'Hare Intl Airport flights, with 40% of flights leaving in that window. Afternoon departures account for 30%, night flights for 20%, and evening flights for 10%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $257 to $2,258. That means the highest observed fare was about 9x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on San Francisco to Chicago O'Hare Intl Airport flights:

• American Airlines
• JetBlue

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from San Francisco to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $150, which is 40% below the typical average for this route.

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Flights from San Francisco to Chicago O'Hare Intl Airport usually depart from San Francisco (SFO) and arrive at Chicago O'Hare Intl (ORD).

Morning flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Francisco to Chicago O'Hare Intl Airport route, 9% of flights were delayed in the past 3 months, with delays averaging 3h 03m.

One-stop flights from San Francisco to Chicago O'Hare Intl Airport most commonly connect through:

• Denver Intl (DEN) - 24% of one-stop connections
• San Diego (SAN) - 20% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 18% of one-stop connections
• Salt Lake City (SLC) - 10% of one-stop connections

Yes. Flexible dates can save you up to 22% on flights from San Francisco to Chicago O'Hare Intl Airport. Wednesday is the cheapest departure day at $374 round-trip on average, while Sunday is the most expensive at $478, a difference of $104.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

3 airlines operate flights between San Francisco and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines
• Aer Lingus

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 29m, compared with 7h 32m via Detroit Metropolitan Wayne County (DTW) and 7h 49m via Portland (PDX).

Chicago O'Hare Intl Airport is 2 hours ahead of San Francisco (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and Soldier Field. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

Among airlines operating San Francisco to Chicago O'Hare Intl Airport flights:

• American Airlines: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• American Airlines: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

If you need transportation assistance or emergency housing, you should head to one of the airport’s Traveler’s Aid offices. Traveler’s Aid is a non-profit organization that assists passengers to organize last-minute housing and transportation. This organization has offices in Terminals 1, 2, 3, and 5, with the main office being in Terminal 2, next to the children’s museum.

In case you’re traveling with older children to Chicago, you can let them have fun in one of the play areas found at SFO. These play areas, available near Gate 22 in Terminal 1, Gate 54A in Terminal 2, and close to Gates 87A and 62 in Terminal 3, feature various toys and soft playgrounds.

Apart from ORD, the other Chicago airport you can fly into from SFO is Chicago Midway International Airport (MDW). When booking your flight to Chicago, it’s in your best interest to book one that lands at MDW, as MDW has shorter queues and lesser passenger crowds than ORD.

If you want to shower before leaving ORD, you can do so at the airport’s Hilton Athletic Club. To enter this club, between Terminal 2 and the parking garage, you’ll have to purchase a day pass.