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Find cheap flights from San Francisco to Illinois from $90

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Illinois departing on 7/5. 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
Tue 7/2
Tue 7/9

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicagononstop$146
Moline
Moline1 stop$276
Peoria
Peoria1 stop$348
Bloomington
Bloomington1 stop$328
Champaign
Champaign1 stop$586
Decatur
Decatur1 stop$374
St. Louis
St. Louis1 stop$156

Good to know

Low season

February

High season

June

Cheapest flight

$90
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from San Francisco to Chicago Midway Airport

FAQs - booking Illinois flights

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

    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 San Francisco to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from San Francisco 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 San Francisco to Illinois?

    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 Illinois with an airline and back to San Francisco with another airline.

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

    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 Illinois from San Francisco 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 cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: Chicago $175 one-way - $346 round-trip
  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from San Francisco to Illinois

 
Need help choosing which airline to fly with from San Francisco to Illinois? 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.
8.3
EVA AirOverall score based on 1495 reviews
8.0Entertainment
8.6Crew
8.4Boarding
8.2Comfort
8.0Food
Airline reviews

I was expecting that movie selection and food would have been better. Everything else was great.

8.0 ExcellentDiane, May 2024TPE - SEA
Read more about EVA Air reviews

I was expecting that movie selection and food would have been better. Everything else was great.

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

The quality of the food is pretty good. Thank you, EVA Air.

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Pleasant crew. Very long flight, a bit uncomfortable at times being seated, but not too bad.

No ice for the drinks. Only gave a half a cup of your beverage. Not enough water. I got very dehydrated.

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

seamless check in/ friendly staff, food is good, always love flying Eva Air

Eva is one of the top airlines in Asia... but often are over priced. Finally found a reasonable rate.

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

Decent flight, staff was very good, especially with the turbulence during the flight due to weather. Comfort was about par with other airlines but since it was a quick flight, was not much of an issue for us.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

They were helpful, considerate with asking us for standby preboarding with our infant, gave us toys and excellent service onboard. They were always on time, even early boarding once! All our luggage arrived intact, and they even brought our baby car seat to oversized for us. We love China Airlines!

Staff is friendly, great variety of entertainment, check in a little messy but due to people not listening. Overall a pleasant experience. Would use again in the future.

Better training to have qualified crews and services. My flight was from around 12 midnight Friday Taipei to Vancouver. After two hours first meal (2:00 Am -8:00 ) no crew available for even asking for some water. I was even willing to pay for water. For breakfast after 8 hours the only drink was tea and coffee no water or juice.

Ask flight attendant for water during flight and she was a little rude get the water.

Baggage made it successfully to destination despite short layover. Appreciate that.

Staff were good and nice. There should me 3 meals instead of only 2 and snacks.

Excellent staff made the boarding process fast and easy. Friendly crews on both flights from Saigon to Taipei and Taipei to Los Angeles. Will fly China Airlines again.

Great, the flight attendants were very friendly and the food was also good.

The overall flight went well and the aircrew was pleasant.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

On time take off…US cabins look tired and need of refresh!

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Our flight was delayed many times throughout the day. The final delay was about 8 hours. I spent time in line to speak to someone at their understaffed desk, and also spent time waiting online and then chatting with a service rep. None of the United employees were any help at all. I desperately wanted to go get rest and possibly re-book my trip but I was denied any compensation or voucher for a hotel. I was repeatedly told it was not United's fault and therefore they had no compensation to offer. Overall, a cold and callous experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

Book cheap flights from San Francisco to Illinois

Recent round-trip flight deals

8/14Wed
nonstopUndisclosed Carrier
4h 21mSFO-ORD
8/22Thu
nonstopUndisclosed Carrier
4h 44mORD-SFO
$146
8/14Wed
nonstopAlaska Airlines
4h 21mSFO-ORD
8/22Thu
nonstopAlaska Airlines
4h 44mORD-SFO
$151
9/9Mon
1 stopFrontier
8h 52mSFO-STL
9/12Thu
1 stopFrontier
10h 05mSTL-SFO
$156
9/6Fri
nonstopAmerican Airlines
4h 15mSFO-ORD
9/11Wed
nonstopAmerican Airlines
4h 39mORD-SFO
$165
9/10Tue
1 stopFrontier
14h 00mSFO-STL
9/12Thu
1 stopFrontier
18h 46mSTL-SFO
$166
9/8Sun
nonstopAmerican Airlines
4h 15mSFO-ORD
9/14Sat
nonstopAmerican Airlines
4h 39mORD-SFO
$204
7/15Mon
nonstopUnited Airlines
4h 18mSFO-ORD
7/17Wed
nonstopUnited Airlines
4h 40mORD-SFO
$205
8/9Fri
nonstopUnited Airlines
4h 13mSFO-ORD
8/13Tue
nonstopUnited Airlines
4h 40mORD-SFO
$206
8/20Tue
1 stopDelta
8h 43mSFO-MDW
8/27Tue
1 stopDelta
7h 48mMDW-SFO
$236
8/23Fri
1 stopDelta
7h 18mSFO-ORD
8/24Sat
1 stopDelta
7h 16mORD-SFO
$236

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Recent one-way flight deals

7/5Fri
nonstopFrontier
4h 10mSFO-MDW
$90
7/17Wed
nonstopAlaska Airlines
4h 21mSFO-ORD
$90
8/20Tue
1 stopAmerican Airlines
9h 18mSFO-CMI
$94
7/10Wed
nonstopUnited Airlines
4h 13mSFO-ORD
$102
9/18Wed
1 stopAmerican Airlines
9h 06mSFO-PIA
$102
7/24Wed
1 stopSun Country Air
17h 11mSFO-ORD
$111
7/10Wed
1 stopSun Country Air
17h 11mSFO-ORD
$112
8/21Wed
1 stopDelta
10h 05mSFO-MDW
$118
8/20Tue
1 stopDelta
8h 34mSFO-MLI
$118
8/14Wed
nonstopUnited Airlines
4h 15mSFO-ORD
$130

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Last minute flights from San Francisco to Illinois

Last minute flight, train and bus deals

6/3Mon
multi-stopFrontier
10h 10mSFO-STL
6/8Sat
multi-stopFrontier
7h 15mSTL-SFO
$207
6/5Wed
multi-stopFrontier
22h 05mSFO-STL
6/10Mon
multi-stopFrontier
12h 49mSTL-SFO
$217
6/3Mon
multi-stopAmerican Airlines
7h 29mSFO-STL
6/6Thu
multi-stopAmerican Airlines
6h 27mSTL-SFO
$224
6/7Fri
multi-stopAmerican Airlines
6h 26mSFO-STL
6/10Mon
multi-stopAmerican Airlines
9h 04mSTL-SFO
$283
6/5Wed
nonstopUnited Airlines
4h 20mSFO-ORD
6/27Thu
nonstopUnited Airlines
4h 41mORD-SFO
$444
6/5Wed
nonstopUnited Airlines
4h 20mSFO-ORD
7/11Thu
nonstopUnited Airlines
4h 40mORD-SFO
$450
6/5Wed
multi-stopAlaska Airlines
12h 45mSFO-ORD
6/12Wed
multi-stopAlaska Airlines
18h 42mORD-SFO
$577
6/3Mon
nonstopAlaska Airlines
4h 23mSFO-ORD
6/10Mon
multi-stopAlaska Airlines
23h 43mORD-SFO
$580
6/3Mon
multi-stopDelta
7h 56mSFO-MDW
6/4Tue
multi-stopDelta
7h 35mMDW-SFO
$640
6/4Tue
multi-stopDelta
8h 45mSFO-ORD
6/10Mon
multi-stopDelta
6h 44mORD-SFO
$645

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