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CHI - SFO

Find cheap flights from Chicago to San Francisco from $49

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to San Francisco departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 4/18
Thu 4/25

Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to San Francisco.
In the last 7 days travelers have searched 47,600,107 times on KAYAK, and here is why:

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Cheap flight deals from Chicago to San Francisco

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
12:29 pm - 3:08 pmMDW-SFO
4h 39mnonstop
3:58 pm - 10:09 pmSFO-MDW
4h 11mnonstop
$98Frontier
Find Deal
Sat, Apr 13 - Sat, Apr 20
12:29 pm - 3:08 pmMDW-SFO
4h 39mnonstop
3:58 pm - 10:09 pmSFO-MDW
4h 11mnonstop
$99Frontier
Find Deal
Sat, Apr 13 - Sat, Apr 20
10:46 pm - 9:33 amORD-SFO
12h 47m1 stop
12:58 am - 12:56 amSFO-ORD
21h 58m1 stop
Mon, Apr 8 - Tue, Apr 16
10:46 pm - 9:33 amORD-SFO
12h 47m1 stop
12:58 am - 12:56 amSFO-ORD
21h 58m1 stop
Mon, Apr 1 - Tue, Apr 9
5:55 pm - 8:47 pmORD-SFO
4h 52mnonstop
11:59 pm - 6:23 amSFO-ORD
4h 24mnonstop
$219Alaska Airlines
Find Deal
Wed, Apr 17 - Wed, Apr 24
7:00 am - 9:46 amORD-SFO
4h 46mnonstop
2:25 pm - 11:58 pmSFO-ORD
7h 33m1 stop
$228Alaska Airlines
Find Deal
Sat, Apr 20 - Tue, Apr 30
9:45 pm - 12:38 amORD-SFO
4h 53mnonstop
10:45 pm - 5:10 amSFO-ORD
4h 25mnonstop
$254United Airlines
Find Deal
Mon, Apr 15 - Fri, Apr 19
8:55 pm - 11:48 pmORD-SFO
4h 53mnonstop
12:59 pm - 12:15 amSFO-ORD
9h 16m1 stop
$266American Airlines
Find Deal
Wed, May 22 - Wed, May 29
4:00 pm - 6:53 pmORD-SFO
4h 53mnonstop
12:09 am - 6:30 amSFO-ORD
4h 21mnonstop
$273United Airlines
Find Deal
Mon, Apr 8 - Thu, Apr 11
3:01 pm - 10:20 pmORD-SFO
9h 19m1 stop
12:59 pm - 12:15 amSFO-ORD
9h 16m1 stop
$286American Airlines
Find Deal
Fri, May 24 - Tue, May 28

Flights from Chicago to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Chicago to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to San Francisco flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Chicago to San Francisco.
Our data shows that the cheapest route for a one-way flight from Chicago to San Francisco cost $46 and was between Chicago Midway Airport and San Francisco. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $98.

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

The average price of all flights from Chicago to San Francisco clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to San Francisco on a Wednesday and more expensive on a Sunday. On your return trip to Chicago, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago to San Francisco is September, where tickets cost $258 on average. On the other hand, the most expensive months are March and June, where the average cost of tickets is $411 and $402 respectively.

How far in advance should I book a flight from Chicago to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chicago to San Francisco, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 56 days before departure.

Which airlines fly most frequently between Chicago and San Francisco?

The airlines most regularly connecting Chicago to San Francisco are United Airlines (14 flights per day), American Airlines (5 flights per day), and Alaska Airlines (one flight per day).

Which airlines fly non-stop between Chicago and San Francisco?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Chicago to San Francisco.
There are 4 airlines that fly nonstop from Chicago to San Francisco. They are: Alaska Airlines, American Airlines, Frontier and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $75 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Chicago and San Francisco per day?

Each day, there are between 19 and 25 nonstop flights that take off from Chicago and land in San Francisco, with an average flight time of 4h 50m. The most common departure time is 8:00 am and most flights take off in the morning. Each week, there are 158 flights. The most frequent day of departure is Friday, when 16% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Chicago and San Francisco?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Chicago to San Francisco take?

The duration of a nonstop flight to San Francisco from Chicago is typically 4h 38m. The journey crosses a distance of 1,855 miles.

What’s the earliest departure time from Chicago to San Francisco?

Early birds can take the earliest flight from Chicago at 6:10 am and will be landing in San Francisco at 9:00 am.

What’s the latest departure time from Chicago to San Francisco?

If you prefer to fly at night, the latest flight from Chicago to San Francisco jets off at 9:45 pm and lands at 12:38 am.

Good to know

Low season

January

High season

July

Cheapest flight

$49
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 12% 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to San Francisco

  • 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.

  • 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 cheapest flight from Chicago to San Francisco?

    In the last 3 days, the lowest price for a flight from Chicago to San Francisco was $49 for a one-way ticket and $98 for a round-trip.

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

    No, a passport isn't needed to fly from Chicago to San Francisco. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Chicago to San Francisco?

    Chicago has 2 major airports: Chicago Midway and Chicago O'Hare Intl. San Francisco is the only airport in San Francisco. You’ll usually find the cheapest deals if you fly from Chicago Midway Airport.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to San Francisco?

    American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Chicago to San Francisco flight route.

  • Which aircraft models fly most regularly from Chicago to San Francisco?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Chicago to San Francisco flight route.

  • Which airline alliances offer flights from Chicago to San Francisco?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and San Francisco, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chicago to San Francisco?

    There are nonstop flights from Chicago to San Francisco on a daily basis.

  • Which is the best airline for flights from Chicago to San Francisco, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Chicago to San Francisco are Alaska Airlines and Delta. With an average price for the route of $314 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $329 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Chicago to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Chicago to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $59 or less one-way and $155 or less round-trip.
  • 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.
  • 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.
See more tips

Prefer to fly non-stop from Chicago to San Francisco?

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

Nonstop departures

Chicago to San Francisco

Monday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Tuesday

ANA, Air Canada, Air New Zealand, +22 more

ANA, Air Canada, +23 more

Wednesday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Thursday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Friday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Saturday

ANA, Aer Lingus, Air Canada, +23 more

ANA, Aer Lingus, +24 more

Sunday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

See more direct flights

Nonstop returns

San Francisco to Chicago

Monday

ANA, Aer Lingus, Air Canada, +20 more

ANA, Aer Lingus, +21 more

Tuesday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Wednesday

ANA, Aer Lingus, Air Canada, +23 more

ANA, Aer Lingus, +24 more

Thursday

ANA, Aer Lingus, Air Canada, +20 more

ANA, Aer Lingus, +21 more

Friday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Saturday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Sunday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

See more direct flights
See more direct flights

Top 5 airlines serving from Chicago to San Francisco

Need help choosing which airline to fly with from Chicago to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to KAYAK reviews.
8.1
Alaska AirlinesOverall score based on 9147 reviews
74entertainment
86crew
73food
81overall
83boarding
79comfort
Airline reviews

The reduced size overhead compartments were a surprise. They keep getting smaller and smaller while amenities keep getting fewer.

Read more about Alaska Airlines

The reduced size overhead compartments were a surprise. They keep getting smaller and smaller while amenities keep getting fewer.

Great ! The counter staffs in Boston helped me to wrap my broken luggage with a plastic bag to prevent my stuffs falling out.

I arrived at 7:15 for an 8:30am flight. The winds in Burbank were keeping all flights down for the morning. What ensued next was absolute chaos, poor communication and chaos. I had booked a flight last minute because my boyfriends father was dying and o needed to be there immediately. There was absolutely no consideration for communication about what was happening with our flight after there was discovered to be a mechanical error. There was no mention that vouchers had been sent by email For food and I ended up wasting money on my lunch that was horrible. I literally bought the food when I had been emailed about a voucher. . I sat there now at 1:45 and tried to get some answers because the time was ticking. Your lady was so helpful and rushed me to get a flight out of United. I showed up to sfo 6+ hours late and was able to say goodbye to his father. But it was just a horribly communicated day. Please do better

Both of my flights were delayed. This is the 2nd week in a row that Alaska has been delayed. Not a great experience.

Super easy on both flights. Alaska is my go to airline!

Pretty bad. Delayed flight that potentially could have caused missed connection. Misplaced luggage, inadequate response.

Great experience with Alaska Airlines. The staff members were, kind, helpful, friendly and professional.

Flight was very dirty. The magazine was a dirty mess. When asked for a replacement it never came. Poor quality flight attendants.

Bad. The fight was late and they gave a ridiculous $12 stipend. Better give something or nothing. $12 is ridiculous.

Alaska seems to be pretty no frills: no real snack even for a 7 hr flight, no TV screens, and cramped seating. But the price was right and staff was good.

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Horrible. Flight ORD to CGH was okay, but Paris was a nightmare. Old planes, delays, involuntary downgrades, broken planes, terrible communication. CGH to CPT was my worst flight ever.

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Crew was great. However the seat I had would not recline and stay put. It would spring back to upright. Hopefully they can check the seats and maintain them. Otherwise the plane is clean and the crew is very friendly.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

United airline kept delaying our flight back to Phoenix for 8 hours before they cancelled it! If they know that we are not flying out for whatever the reason is, why did they keep lying to us for hours. We could find another flight earlier or even find a hotel with a shuttle. But cancellation at about midnight was not fun. We stayed in the airport all night till the following morning when we bought an Alaska tickets to go back to Phoenix. Total of 14 hours in the airport.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

My experience is based on one crew member. I had found my seat and sat down but there was a gentleman to claimed to the flight attendant I was in his seat. She then came to me and curtly said, "I need your ticket!" No hi, no excuse me may I see your boarding pass? NOTHING! I was taken aback by her attitude and she repeated herself, "your ticket?!?!" I calmly responded with ok, here you go. Only to discover the gentleman was looking at the wrong boarding pass. She gave me back my ticket with no apology. She then was curt with another man who was putting his coat in the overhead bin, already helped by another flight attendant who said it was fine. She realizes it's ok and then asks him if he drinks. The look on the man's face was priceless. She said she was going to comp him drinks. He gets offered a comp drink for a coat as well as an apology, and I got no apology.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

Delays, excuses, delays, and more delays. This company is BROKEN.

Horrible. Delayed on both planes several times. No attempt to fix it

I contacted both carriers months beforehand to change the cabin (booked in April) but to no avail (united asked to contact Swiss since it was their equipment, Swiss told me to reach out to united). So yeah… My seat was pretty worn down, legroom on 27K was more than enough, but still economy seating so, getting to know your neighbours was easy. According to ground staff, the flight was massively overbooked- and this showed. I ordered a gluten free meal beforehand (which was honoured) but for breakfast got a bread roll and croissant 🤷🏼‍♂️ The connection itself is great. Leaving SFO late PM to arrive at ZRH in the afternoon makes it easier to get re adjusted again. However, and since I’ve flown this connection a couple of times in the past, I will rather deal with one carrier only and include a layover on the east coast.

United requires seat selection in order for those booking together to stay together.

Delays!!! Maintain your planes so your customers don’t have to sit on their assess for over an hour on the tarmac!! Also, United app is buggy. Videos did not load. Overall a miserable experience. Flight crew was awesome though.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

I don't like that I have to pay if I want extra leg room. The seats are so expensive; I sit in normal seats and my legs and knees cramp the entire flight. I never feel comfortable on AA flights.

Flight was delayed at departure due to weather and the need for de-icing. The flight was smooth but there was a delay at arrival due to weather. We were in a hold for 20 minutes or more. The flight arrived more than 30 minutes late. Airlines have no control over the weather and I'm glad that they follow all safety procedures. Had to wait a long time for my checked luggage. Whole process was slow and the bags arrived wet due to the rain. The onboard wifi and entertainment access was spotty and the signal was dropped several times. Otherwise the crew was great and friendly. They tried to get everyone's bags stowed and seated so we could take off.

Regarding the boarding: it needs more efforts to make it more convenient

Deicing in Denver took forever and I almost missed my connection. De-ice faster! Not Americans fault.

If they could pack the seats closer together they would...

They changed my flight and did not want to accommodate me or try to help me in any way. They do not care about their customers.

The check in at the airport was awful. Told I need to pay for a bag. The item was taken at screening. I went back to get my $ back and they gave me a coupon with a QR code that doesn’t work. Worst costumer service ever!!!!!

4 hour delay because they used our aircraft to fly a different segment (per the captain)

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

I had to cancel within 1hour of the reservation an they put you through hell to . no live customer service desk. I'm handy caped and they make it almost impossible to cancel. They are steeling my money. You should not have that airline on your site. Contact me and I will give you all info. Of what the are doing to me just notable treatment they are set up like that to take people

absolutely horrific. delayed flights, overbooking. over charging. nightmare service beyond words. stay away.

My husband didn't get boarded on this flight. He was asked to pay $50 extra by the Frontier staff to get two boarding passes for check-in at the Las Vegas airport. He refused to pay this extra $50 charge and tried to do check-in online by himself but it seemed to be late with only 7 mins left. It ended up that my daughter and my husband missed the 7-minute time window. They had to take the next non-direct flight which took more than 12 hours from Las Vegas to San Francisco, a very poor experience for them.

Frontier is a no-frills airlines were the focus is low cost. You get basic service so don't set your expectations high. Watch out thought because this airline, like a few others, will try to nickel and dime you.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Book cheap flights from Chicago to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to San Francisco found on KAYAK in the last 72 hours.
4/13Sat
nonstopFrontier
4h 39mMDW-SFO
$49
4/13Sat
nonstopFrontier
4h 39mMDW-SFO
$50
4/13Sat
nonstopAlaska Airlines
4h 59mORD-SFO
$110
5/11Sat
1 stopAmerican Airlines
8h 03mORD-SFO
$118
5/3Fri
nonstopAlaska Airlines
4h 46mORD-SFO
$130
6/25Tue
1 stopDelta
6h 48mMDW-SFO
$138
6/18Tue
1 stopDelta
7h 00mORD-SFO
$138
4/14Sun
1 stopUnited Airlines
6h 43mORD-SFO
$139
4/10Wed
nonstopUnited Airlines
4h 53mORD-SFO
$155
9/2Mon
nonstopAmerican Airlines
4h 36mORD-SFO
$219

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Last minute flights from Chicago to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to San Francisco that are departing in the next 10 days.
3/19Tue
multi-stopFrontier
11h 55mORD-SFO
3/26Tue
multi-stopFrontier
6h 32mSFO-ORD
$252
3/19Tue
multi-stopFrontier
11h 55mORD-SFO
3/25Mon
multi-stopFrontier
6h 32mSFO-ORD
$281
3/23Sat
multi-stop
12h 47mORD-SFO
4/9Tue
multi-stop
16h 41mSFO-ORD
$384
3/23Sat
multi-stop
12h 47mORD-SFO
4/8Mon
multi-stop
12h 12mSFO-ORD
$394
3/23Sat
nonstopUnited Airlines
4h 44mORD-SFO
4/9Tue
nonstopUnited Airlines
4h 17mSFO-ORD
$648
3/21Thu
multi-stopUnited Airlines
6h 14mORD-SFO
4/9Tue
nonstopUnited Airlines
4h 29mSFO-ORD
$657
3/21Thu
multi-stopAlaska Airlines
10h 17mORD-SFO
4/7Sun
nonstopAlaska Airlines
4h 21mSFO-ORD
$671
3/21Thu
nonstopAlaska Airlines
5h 00mORD-SFO
4/7Sun
nonstopAlaska Airlines
4h 21mSFO-ORD
$722
3/23Sat
multi-stopDelta
7h 16mMDW-SFO
3/25Mon
multi-stopDelta
7h 52mSFO-MDW
$888
3/22Fri
multi-stopDelta
7h 58mMDW-SFO
3/25Mon
multi-stopDelta
7h 52mSFO-MDW
$931

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Flights to San Francisco

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Chicago

Cabin classes:

$450
$808
$591
$98

Compare transportation modes for Chicago to San Francisco

Average priceAverage duration
Flights$4604h 39m
Trains$2570h 00m