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CHI - SFO

$44 Find cheap flights from Chicago to San Francisco

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 10/23. 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
ส. 8/24
ส. 8/31

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 50,552,696 times on KAYAK, and here is why:

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Cheap flight deals from Chicago to San Francisco (CHI-SFO)

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:09 pm - 6:47 pmMDW-SFO
4h 38mnonstop
9:03 am - 3:14 pmSFO-MDW
4h 11mnonstop
$90Frontier
Find Deal
พ., ต.ค. 23 - พ., ต.ค. 30
4:09 pm - 6:47 pmMDW-SFO
4h 38mnonstop
9:03 am - 3:14 pmSFO-MDW
4h 11mnonstop
$98Frontier
Find Deal
พ., ต.ค. 9 - พ., ต.ค. 16
5:57 pm - 8:41 pmORD-SFO
4h 44mnonstop
10:27 am - 4:48 pmSFO-ORD
4h 21mnonstop
$141Alaska Airlines
Find Deal
อ., ต.ค. 29 - ส., พ.ย. 2
8:17 pm - 11:07 pmORD-SFO
4h 50mnonstop
11:59 pm - 6:12 amSFO-ORD
4h 13mnonstop
$150American Airlines
Find Deal
พ., ต.ค. 30 - อา., พ.ย. 3
1:20 pm - 4:05 pmORD-SFO
4h 45mnonstop
11:59 pm - 6:12 amSFO-ORD
4h 13mnonstop
$159American Airlines
Find Deal
ศ., พ.ย. 1 - อา., พ.ย. 3
5:57 pm - 8:41 pmORD-SFO
4h 44mnonstop
6:00 am - 4:58 pmSFO-ORD
8h 58m1 stop
$170Alaska Airlines
Find Deal
พ., พ.ย. 6 - ส., พ.ย. 16
7:30 am - 10:08 amORD-SFO
4h 38mnonstop
12:56 pm - 9:01 pmSFO-ORD
6h 05m1 stop
$189United Airlines
Find Deal
ศ., ก.ย. 6 - อ., ก.ย. 10
5:16 am - 9:39 amORD-SFO
6h 23m1 stop
5:15 am - 11:37 amSFO-ORD
4h 22mnonstop
$214United Airlines
Find Deal
พฤ., ส.ค. 15 - อ., ส.ค. 20
1:08 pm - 6:31 pmMDW-SFO
7h 23m1 stop
12:43 am - 8:41 amSFO-MDW
5h 58m1 stop
$236Delta
Find Deal
อ., ก.ย. 10 - พ., ก.ย. 11
2:15 pm - 8:02 pmORD-SFO
7h 47m1 stop
10:55 pm - 9:11 amSFO-ORD
8h 16m1 stop
$236Delta
Find Deal
พ., ก.ย. 25 - ศ., ก.ย. 27

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 $34 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 $49.

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 Wednesday, and avoid Thursdays 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 $245 on average. On the other hand, the most expensive months are March and June, where the average cost of tickets is $382 and $349 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 139 days before departure.

Which airlines provide the cheapest flights from Chicago to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $44. KAYAK users also found Chicago to San Francisco round-trip flights on Frontier from $90 and on Alaska Airlines from $141.

Which airlines fly most frequently between Chicago and San Francisco?

Chicago and San Francisco are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (74 flights per week), American Airlines (28 flights per week), and Alaska Airlines (14 flights per week).

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 5 airlines that fly nonstop from Chicago to San Francisco. They are: Alaska Airlines, American Airlines, Frontier, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $78 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 18 and 20 nonstop flights that take off from Chicago and land in San Francisco, with an average flight time of 4h 38m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 132 flights. The most frequent day of departure is Monday, when 15% 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 29m. 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 6:05 am and will be landing in San Francisco at 8:45 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 9:55 pm and lands at 12:20 am.

Good to know

Low season

January

High season

August

Cheapest flight

$44
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 5% lower on average.
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 $44 for a one-way ticket and $90 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 Airbus A321neo 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 oneworld 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 $296 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $311 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 $100 or less one-way and $134 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 Airport, 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, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Wednesday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Thursday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Friday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Saturday

ANA, Aer Lingus, Air Canada, +24 more

ANA, Aer Lingus, +25 more

Sunday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

See more direct flights

Nonstop returns

San Francisco to Chicago

Monday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Tuesday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Wednesday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Thursday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

Friday

ANA, Aer Lingus, Air Canada, +22 more

ANA, Aer Lingus, +23 more

Saturday

ANA, Aer Lingus, Air Canada, +24 more

ANA, Aer Lingus, +25 more

Sunday

ANA, Aer Lingus, Air Canada, +21 more

ANA, Aer Lingus, +22 more

See more direct flights
See more direct flights

Top 5 airlines serving from Chicago to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Chicago to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9365 reviews
8.6Crew
7.9Comfort
7.2Entertainment
7.2Food
8.2Boarding
Airline reviews

The landing was a little rough - but a good flight overall! :)

8.0 ExcellentAnonymous, Jul 2024ORD - SFO
Read more about Alaska Airlines reviews

The landing was a little rough - but a good flight overall! :)

Although the plane was delayed , I appreciate the food credit.

The boarding took an extremely long time, we were taxiing for over an hour, there was no WiFi on the flight, there were many sick people coughing and sneezing without masks and when we got to the gate it took an extra 30 minutes for the crew to open the door because the crew was at the wrong gate.

The issue was not alaska airlines. The ticket you printed was innacurate.

Seat 6F was very good, but had loud engine noise

first class on these new Boeings is horrible, absolutely not worth the money, its bad. I need to find a IAD to SFO with an Airbus like Virgin used to have, that was the best ever. I am now only looking for flights with an Airbus

It was prompt. The only problem was that there are electric outlets at the seats, but they're on a slant, so my computer charger just fell out if I wasn't holding it. Flight attendants were fabulous.

Everything went smoothly, with the exception of a two-hour delay on the return flight, which wasn't the airline's responsibility.

extremely bad. crew at the gate and in flight unprofessional, unfriendly , refusing to offer any help

Glad to have more leg room. There were four restrooms, which was great and they were in decent conditions. Very impressed.

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

Rough day of travel all the way around. Wrong info given to us multiple times and mistakes in their booking making our trip 10 hours longer than planned. I’m bummed because I fly Delta all the time and love them. Mistakes happen. Just bummed that this was a rare trip our whole family was traveling together.

Meh. A late flight meant I missed my connections, and a 2pm LAX arrival turned into gettin in after midnight.

It was very cold because the air conditioner was on high power, and my son got sick.

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

Boarding was efficient. Crew was not pleasant and skipped me during a round of beverage service. Older plane with no seat back screens and I couldn’t connect to wifi or their entertainment offerings.

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

The lady at the check in counter wasn't helpful

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Perfect flight. Efficient boarding, on time take off and early arrival. Generally smooth flight.

American is a steady for me. I always get what I expect from them. Sincere effort to get me from one place to another.

BAD. As a family could not sit together. The gate agent told us there was only one seat in the middle left, when we got on the plane the situation was very different with whole rows of seats empty

Plane was delayed an hour causing me to miss my flight to London and now I am not arriving until Sunday instead of Friday. I am stranded at airport and they give me $12 of food vouchers. It's a joke and everyone I talked to was rude

The Airline was not prepared for weather delays. We were held up due to an incoming flight being delayed and so we did not have a flight crew. This caused an extra delay for departure by 2 hours.

The plane was freezing cold. Normally I’m fine on planes but I needed to toss a sweatshirt on this time.

I missed this flight due to delays on my previous flight.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Better than expected.on time. Friendly staff in NY however MYR not so nice.

The flight crew and flight attendants are poorly trained and demonstrate poor professionalism. They have a sloppy appearance and communicate with patrons poorly. It is embarrassing for them to be representatives of an airline and for them to be called professionals.

After 5 hours of delay, they cancelled the flight. Very disappointed

My flight to LA was cancelled. I waited at the airport for 3 hrs saying it was delayed and then all of a sudden it was cancelled. Frontier only gave me a voucher and refund but could not rebook me. Flights on other airlines were too expensive last minute. I had to drive down to LA and didn’t even take my return flight home since I had to drive. One of the worst airline experiences in my life. It’s crazy how airlines can just upend people’s plans just like that.

Flying Frontiier was extremely poor!! I paid for a7:15am flight on flight 1601 from PHL To Las Vegas and the delay was brutally, excruciatingly and disgustingly long (8 hrs). I arrived by Uber to PHL at 5:30 am and had to spend the entire 8 hr delay inside the airport. Even more atrocious was that the flight was delayed twice. On the phone with customer service for two hours and was not fully compensated. I feel taken advantage of with this airline. They offered a menial couched for another flight within 90 days to me and my husband who has never flown but this experience has made us almost 100% sure to not fly this airline and will suggest that others don’t either. We don’t want to book ever again, don’t want a menial voucher and I believe by standard and because the flight was delayed for 8 hours, I should be fully reimbursed for the entire round trip. There is no excuse why this should have ever occurred. After sharing my experience with others in Vegas and Philadelphia, I was told that Frontier airlines is notorious for long delayed flights, poor customer service and refusal to compensate people correctly. I’m very nervous to see what departing from Vegas to Philadelphia will bring.

I fly Frontier often and generally don't have any issues. For some reason, the Denver to Houston's George Bush Intercontinental (IAH) flight always needs to wait on the tarmac in Houston because a gate is not available after landing. I've been stuck for as little as 15 minutes and as much as a little over an hour. I know only fly the Frontier Denver to IAH route when there is not an available flight to Houston Hobby (HOU).

Flight was 3 hours late leaving. Poor communication from the staff about delays. Impossible to get in touch with customer service (by design). And it actually didn't come out to be much cheaper than a non-budget airline! Not worth the headache, I'm never flying Frontier again

I’ve never flown frontier without a flight getting canceled. I understand that things go wrong with planes, but all other airlines handle cancellations so well. Frontier becomes a dumpster fire if a problem appears for them.

Checking in was easy and simple, crew was nice and efficient, but I would improve seat assignment randomness to make it easier to sit together based on when you check in. Overall would fly with them again.

Flying Frontier was a nightmare. From the booking through Kayak, checking in, departing and arriving, I will never recommend Kayak or Frontier.

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.
10/23พ.
nonstopFrontier
4h 38mMDW-SFO
$44
10/30พ.
nonstopFrontier
4h 38mMDW-SFO
$49
10/22อ.
nonstopAlaska Airlines
4h 43mORD-SFO
$71
9/7ส.
nonstopAmerican Airlines
4h 44mORD-SFO
$80
10/25ศ.
nonstopAlaska Airlines
4h 43mORD-SFO
$91
8/20อ.
nonstopUnited Airlines
4h 41mORD-SFO
$95
8/22พฤ.
nonstopAmerican Airlines
4h 39mORD-SFO
$110
10/2พ.
1 stopDelta
7h 23mMDW-SFO
$118
8/27อ.
1 stopDelta
8h 01mORD-SFO
$118
8/7พ.
nonstopUnited Airlines
4h 40mORD-SFO
$120

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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.
7/30อ.
multi-stopFrontier
27h 38mORD-SFO
8/9ศ.
multi-stopFrontier
13h 35mSFO-ORD
$212
7/30อ.
multi-stopFrontier
27h 38mORD-SFO
8/4อา.
multi-stopFrontier
17h 10mSFO-ORD
$243
7/29จ.
multi-stopUnited Airlines
6h 45mORD-SFO
8/7พ.
nonstopUnited Airlines
4h 15mSFO-ORD
$369
7/28อา.
multi-stopAmerican Airlines
6h 50mORD-SFO
8/27อ.
nonstopAmerican Airlines
4h 17mSFO-ORD
$389
7/29จ.
nonstopAmerican Airlines
4h 45mORD-SFO
8/9ศ.
nonstopAmerican Airlines
4h 15mSFO-ORD
$391
7/28อา.
nonstopUnited Airlines
4h 40mORD-SFO
8/13อ.
nonstopUnited Airlines
4h 15mSFO-ORD
$449
7/27ส.
multi-stopDelta
6h 31mORD-SFO
7/31พ.
multi-stopDelta
9h 55mSFO-ORD
$463
7/26ศ.
nonstopAlaska Airlines
4h 37mORD-SFO
8/1พฤ.
nonstopAlaska Airlines
4h 21mSFO-ORD
$479
7/26ศ.
nonstopAlaska Airlines
4h 37mORD-SFO
7/29จ.
multi-stopAlaska Airlines
9h 21mSFO-ORD
$488
7/27ส.
multi-stopDelta
8h 21mMDW-SFO
7/27ส.
multi-stopDelta
6h 07mSFO-MDW
$498

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Flights to San Francisco

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Chicago

Cabin classes:

$905
$939
$565
$49