CHI - SFO

$126 Find Cheap Flights from Chicago to San Francisco - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$242
Typical prices: $302-$499
Frontier
Sat 9/22Mon 9/24
ORD - SFO • 1 stop
Cheapest non-stop
$257
Typical prices: $308-$505
American Airlines
Wed 10/24Fri 10/26
ORD - SFO • Non-stop
Nonstop flights
You can fly direct with United Airlines, American Airlines and Southwest. Average duration is 4h 52m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 1% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 78% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $260 (round-trip)
Shortest trip • 6h 24m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Chicago to San Francisco (CHI-SFO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to San Francisco

Tue, Sep 22 - Thu, Sep 24
Frontier Logo
1:21 pm - 6:24 pmORD  Chicago O'Hare Intl-SFO San Francisco
7h 03m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:24 pm - 5:38 amSFO  San Francisco-ORD Chicago O'Hare Intl
7h 14m1 stop Las Vegas Harry Reid Intl
$242Frontier
Thu, Nov 12 - Sat, Nov 14
Frontier Logo
6:30 am - 11:17 amORD  Chicago O'Hare Intl-SFO San Francisco
6h 47m1 stop Denver Intl
Frontier Logo
12:20 pm - 12:21 amSFO  San Francisco-ORD Chicago O'Hare Intl
10h 01m1 stop Denver Intl
$242Frontier
Fri, Oct 16 - Sun, Oct 18
Multiple Airlines Logo
8:01 pm - 8:38 pmORD  Chicago O'Hare Intl-SFO San Francisco
26h 37m1 stop Los Angeles
Multiple Airlines Logo
6:07 am - 6:20 pmSFO  San Francisco-ORD Chicago O'Hare Intl
10h 13m1 stop Seattle/Tacoma Intl
$243Multiple Airlines
Fri, Sep 25 - Tue, Sep 29
Multiple Airlines Logo
8:17 pm - 8:46 amORD  Chicago O'Hare Intl-SFO San Francisco
14h 29m1 stop San Diego
Multiple Airlines Logo
7:11 pm - 5:38 amSFO  San Francisco-ORD Chicago O'Hare Intl
8h 27m1 stop Las Vegas Harry Reid Intl
$244Multiple Airlines
Tue, Dec 8 - Fri, Dec 11
Alaska Airlines Logo
6:00 am - 1:48 pmORD  Chicago O'Hare Intl-SFO San Francisco
9h 48m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:59 pm - 7:00 amSFO  San Francisco-ORD Chicago O'Hare Intl
9h 01m1 stop Seattle/Tacoma Intl
$248Alaska Airlines
Mon, Dec 7 - Fri, Dec 11
Alaska Airlines Logo
7:55 pm - 8:02 amORD  Chicago O'Hare Intl-SFO San Francisco
14h 07m1 stop San Diego
Alaska Airlines Logo
2:49 pm - 11:59 pmSFO  San Francisco-ORD Chicago O'Hare Intl
7h 10m1 stop San Diego
$248Alaska Airlines
Tue, Oct 27 - Mon, Nov 2
United Airlines Logo
2:30 pm - 5:25 pmORD  Chicago O'Hare Intl-SFO San Francisco
4h 55mnonstop
United Airlines Logo
6:42 pm - 12:59 amSFO  San Francisco-ORD Chicago O'Hare Intl
4h 17mnonstop
$257United Airlines
Tue, Nov 10 - Tue, Nov 10
United Airlines Logo
1:30 pm - 4:20 pmORD  Chicago O'Hare Intl-SFO San Francisco
4h 50mnonstop
United Airlines Logo
10:45 pm - 5:04 amSFO  San Francisco-ORD Chicago O'Hare Intl
4h 19mnonstop
$257United Airlines
Sat, Oct 24 - Mon, Oct 26
American Airlines Logo
5:10 pm - 8:11 pmORD  Chicago O'Hare Intl-SFO San Francisco
5h 01mnonstop
American Airlines Logo
7:10 am - 1:44 pmSFO  San Francisco-ORD Chicago O'Hare Intl
4h 34mnonstop
$257American Airlines
Fri, Nov 6 - Thu, Nov 26
American Airlines Logo
9:45 am - 12:41 pmORD  Chicago O'Hare Intl-SFO San Francisco
4h 56mnonstop
American Airlines Logo
8:47 am - 3:16 pmSFO  San Francisco-ORD Chicago O'Hare Intl
4h 29mnonstop
$257American Airlines
Booking Insights

Price, demand and travel trends for Chicago to San Francisco flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Chicago to San Francisco with more confidence.

How much is a round-trip flight from Chicago to San Francisco?

Round-trip flights from Chicago to San Francisco start at $242. Prices are below average for this route right now, with typical round-trip fares ranging from $302 to $499. The lowest price found in the past 5 days was $242 on Frontier.

What is the cheapest Chicago to San Francisco flight route?

There's little price difference between Chicago to San Francisco routes. They average around $379 round-trip, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Chicago to San Francisco?

Wednesday is the cheapest day of the week to fly from Chicago to San Francisco, it is 9% cheaper than the average day. Monday is the most expensive day with flight prices 34% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Chicago to San Francisco?

  • September is the cheapest month to fly from Chicago to San Francisco at $325 round-trip.
  • June ($440) and November ($416) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 35% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Chicago to San Francisco the cheapest?

Flights from Chicago to San Francisco are cheapest 6 weeks before departure. Booking in this window typically costs about 45% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Chicago to San Francisco

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

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.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Key details for Chicago to San Francisco flights

Low season

September

Cheapest flight

$126
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Chicago Midway Airport to San Francisco

When to book flights from Chicago to San Francisco

Are your dates flexible? Find out the best times to travel from Chicago to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Chicago to San Francisco flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Can I fly from Chicago to San Francisco non-stop?

    Yes, you can. Flights from Chicago to San Francisco are quite popular and, as such, there are a great number of non-stop flights between the two cities every week. The flight is also not overly long, as it usually takes a little less than 5 hours.

  • How do I get from downtown Chicago to O’Hare International Airport?

    To get to O’Hare International Airport from downtown Chicago you can use the Amtrak connections available (Blue Line) or the bus (there are a great number of lines serving the airport). Alternatively you can take one of the shuttle buses operated by many hotels in the area, or else just hail a cab.

  • Are there on-site hotels at Chicago Midway Airport?

    While there are no hotels located inside Chicago Midway Airport, there are a number of them located just outside, many of which include shuttle services to and from the airport in addition to comfortable rooms and a tasty breakfast spread. These include the Chicago Marriott Midway Hotel, the Courtyard Chicago Midway Airport Hotel, and the Fairfield Inn & Suites Chicago Midway Airport Hotel.

  • What is there to do in O’Hare International Airport?

    If your flight to San Francisco is running late, take a chance to relax and stretch at the airport’s yoga room or work up a sweat at the Hilton Athletic Club, open even to non-guests for a small fee. You can also spend the time pampering yourself at the spa, getting a haircut at the barber shop, or enjoying some local art featured in the many displays scattered throughout the airport.

  • What is the best way to get out of San Francisco International Airport?

    For individuals connecting from SFO to various locations within the Bay Area, including downtown San Francisco, BART trains are the convenient means of transportation. From the airport, it takes around 30 minutes to get to Downtown San Francisco.

  • How can I catch up with the earliest flight from Chicago to San Francisco?

    Spend the night at Hampton Inn & Suites Rosemont Chicago O'Hare for increased convenience if you want to make the first flight out of Chicago to San Francisco. You can connect to the airport using the free airport shuttles from the hotel.

  • Which airlines should I book when flying from Chicago to San Francisco with kids?

    Extra legroom and spacious seats are some of the exciting onboard amenities available on American Airlines and United Airlines, which ensure that you and your child(ren) will be more comfortable for the entire flight. Additionally, American Airlines gives parents of young children priority boarding.

  • How convenient is it to land at San Francisco International Airport late at night?

    You can spend the rest of the night in one of the nap rooms at Terminals 2 or 3 of the airport if your flight from ORD or MDW lands at SFO late at night. You can also choose to connect to a hotel close by, such as the San Francisco Airport Marriott Waterfront. It is easier for you to connect to the airport through the hotel's free 24-hour airport shuttle service.

  • Which nearby cities can I get to from San Francisco Airport (SFO)?

    SFO serves a number of cities in Northern California in addition to acting as the international gateway to San Francisco. From SFO, you can travel to places like Mountain View, San Jose, Santa Clara, and Palo Alto, among others. A more convenient way to get from SFO to these cities is by renting a car.

  • How can I access rental cars upon landing at San Francisco International Airport?

    A rental car center with several rental car companies, including Enterprise, Avis, Budget, and Dollar, on Level 4, inside the airport. As a result, renting a car at SFO after landing is a simple process.

  • Which airlines offer extra legroom and free seat selection on Chicago to San Francisco flights?

    Among airlines operating Chicago to San Francisco flights:

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

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

  • What airlines are available from Chicago to San Francisco?

    3 airlines operate flights between Chicago and San Francisco. The airlines offering nonstop flights on this route include:

    • United Airlines
    • American Airlines
    • Southwest

  • Which airports can I use when flying from Chicago to San Francisco?

    Flights from Chicago to San Francisco may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually arrive at San Francisco (SFO).

  • Which airlines include bags at no extra cost on Chicago to San Francisco flights?

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

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

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

  • What cabin classes can I book on flights from Chicago to San Francisco?

    Four cabin classes are available on flights from Chicago to San Francisco:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from Chicago to San Francisco?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $260 round-trip via Denver Intl (DEN), compared to $387 for nonstop.

  • What is the standard checked-bag allowance on flights from Chicago to San Francisco?

    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.

  • Which airports do connecting flights from Chicago to San Francisco pass through?

    One-stop flights from Chicago to San Francisco most commonly connect through:

    • San Diego (SAN) - 23% of one-stop connections
    • Denver Intl (DEN) - 21% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 16% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 10% of one-stop connections

    San Diego (SAN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Chicago to San Francisco?

    Yes. Being flexible with your travel dates can save you up to 32% on the Chicago to San Francisco route. Wednesday is the cheapest departure day at $350 round-trip on average, while Monday is the most expensive at $514, a difference of $164. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from Chicago to San Francisco?

    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 Chicago to San Francisco route, 26% of flights were delayed in the past 3 months, with delays averaging 2 hours 40 minutes.

  • How are flight departures from Chicago to San Francisco spread across the day?

    Morning is the busiest departure period on Chicago to San Francisco flights, with 37% of flights leaving in that window. Afternoon departures account for 32%, evening flights for 18%, and night flights for 13%.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

  • What are the earliest and latest flights from Chicago to San Francisco?

    These are the earliest and latest flight times available from Chicago to San Francisco:

    • Earliest: departs at 5:00 am and lands at 9:52 am
    • Latest: departs at 11:00 pm and lands at 3:52 am.

    The flight takes about 4h 52m.

  • How expensive are last-minute Chicago to San Francisco flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 56% above the route average of $383. Book 6 weeks before departure for the lowest fares.

  • How long is a flight from Chicago to San Francisco?

    A nonstop flight from Chicago to San Francisco takes 4h 52m, covering 1,855 miles.

  • Do I need a passport to fly from Chicago to San Francisco?

    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.

  • Have flight prices from Chicago to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $242 to $2,257. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Chicago to San Francisco looking right now?

    One-way fares from Chicago to San Francisco are currently lower than usual. Average one-way flight prices are about $129, which is 50% below the typical average for this route.

  • How does United Airlines’s on-time performance compare to other airlines on Chicago to San Francisco flights?

    United Airlines is slightly above the route average for timely arrivals, while American Airlines has a lower on-time arrival rate. On-time arrival rates on Chicago to San Francisco flights are:

    • United Airlines: 78% on time
    • American Airlines: 69% on time
    • Alaska Airlines: 63% on time

    Overall, flights on this route are on time 74% of the time on average.

  • How do delay rates compare for morning and evening flights from Chicago to San Francisco?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from Chicago to San Francisco?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 24m, compared with 7h 00m via Portland (PDX) and 7h 12m via Detroit Metropolitan Wayne County (DTW).

  • What is the time difference between Chicago and San Francisco?

    San Francisco is 2 hours behind Chicago (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:
    · Thrifty
    · Europcar
    · Dollar
    · Hertz
    · Fox

  • How much should I expect to pay for a Chicago to San Francisco flight?

    Round-trip flights from Chicago to San Francisco range from $302 to $499, with an average of $383 over the past 12 months. Anything below $302 counts as a good deal.

  • Which airlines offer Wi-Fi on Chicago to San Francisco flights?

    Two airlines offer in-flight Wi-Fi on Chicago to San Francisco 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.

Your guide to booking Chicago to San Francisco flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $350 - about $164 less than Monday (32% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 6 weeks before you fly. On this route, that window historically saves about 45% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chicago to San Francisco trip for September. Fares historically average $325 round-trip in that month - typically $115 less than the most expensive month, which is June (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 78% of United Airlines flights from Chicago to San Francisco arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 74%. When flights on this route do arrive late, the average delay is 2 hours 40 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Denver Intl Airport (DEN) can be cheaper than flying direct. The cheapest layover option averages $260 round-trip on this route - about $128 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.
    - Grand Hyatt At Sfo
  • Flights from Chicago to San Francisco usually depart either from Chicago O’Hare International Airport or from Chicago Midway Airport. Although the former is larger and more popular than the latter, it is also furthest away from downtown Chicago, located as it is just 17.5 miles northwest of the city. Though less often used, Chicago Midway Airport is only 10.8 miles south of the city center.
  • If you are flying from Chicago O’Hare International Airport and you are traveling with children, head to Terminal 2, where you can find the children’s play area. Fun and colorful, Kids On The Fly is an aviation-themed playground that has been voted “Most Awesome Airport Play Area”.
  • If San Francisco is just one leg of your trip and you are worried about what to do on your stopover there, don’t! San Francisco International Airport is simply full of things to do: hit the shops for some retail therapy, enjoy the local cuisine at the dozens of cafés scattered throughout the airport, or learn something new at the Aviation Museum or at the various exhibits on art & culture, history, and science organized in the various terminals.
  • If your flight from Chicago to San Francisco has arrived late and you don’t want to travel into the city at night, why not sleep at the airport? Located inside the International Terminal, FreshenUp offers travelers a small number of basic yet comfortable ensuite rooms; alternatively, if you don’t find place there, there are a number of hotels located just minutes from the airport, many of them offering shuttle services to their guests.
  • Once you get to San Francisco Airport, to get downtown you can use the city’s rich transportation network, which includes a number of bus lines and Amtrak connections running between the airport and various important locations within the city multiple times a day.
  • Either Chicago O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW) are the departure points for flights from Chicago to San Francisco. The advantage of leaving from ORD is that you have access to a large number of airlines and can book a ticket depending on your schedule at various times of the day. There are more daily flights from ORD than from MDW to San Francisco. However, leaving MDW allows you to take advantage of shorter queues at various security checkpoints.
  • Buses provide a convenient and affordable way of getting to O'Hare International Airport (ORD) from downtown Chicago. Blue Line Buses avail nonstop connections between the airport terminals from downtown. Taxis are the alternative means of transport, particularly suitable for those rushing against time.
  • Most flights from Chicago arrive at San Francisco International Airport (SFO), which serves as their primary destination. However, San Jose Mineta International Airport (SJE) and Oakland International Airport (OAK) also receive a sizable amount of flights. Having more transportation alternatives makes it simpler to get from SFO to the city center of San Francisco. There are fewer lines at the baggage claim areas for passengers arriving at OAK or SJE.

Prefer to fly direct from Chicago to San Francisco?

 
Find which airlines fly direct from Chicago to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Chicago to San Francisco

Monday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Tuesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Wednesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Thursday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Friday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Saturday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Sunday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

See more direct flights

Direct returns

San Francisco to Chicago

Monday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Tuesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Wednesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Thursday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Friday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Saturday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Sunday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

See more direct flights

More options for your flight from Chicago to San Francisco

Complete your trip to San Francisco with a hotel stay or car rental