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Find cheap flights from San Francisco Bay Area to Illinois from $40

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 Bay Area to Illinois departing on 6/5. 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
Sat 6/29
Sat 7/6

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Low season

January

High season

May

Cheapest flight

$40
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Oakland to St. Louis

FAQs for booking flights from San Francisco Bay Area to Illinois

  • How does KAYAK find such low prices on flights from San Francisco Bay Area 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 Bay Area to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from San Francisco Bay Area 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 Bay Area 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 Bay Area with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco Bay Area 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 Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from San Francisco Bay Area to Illinois

 
Need help choosing which airline to fly with from San Francisco Bay Area 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 1500 reviews
8.4Boarding
8.0Entertainment
7.9Food
8.6Crew
8.2Comfort
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.

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.

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.

It felt like a new plane. Decent leg room in economy, food was fine, and the plane didn’t feel super dry and uncomfortable.

Free Wi-Fi could have been better in the Airport.

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.

For a long-haul flight, the crew did a very good job of keeping the lavatories clean and the aisles clear.

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

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

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.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

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.

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.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Book cheap flights from San Francisco Bay Area to Illinois

Recent round-trip flight deals

8/21Wed
nonstopFrontier
4h 11mSFO-MDW
9/23Mon
nonstopFrontier
4h 38mMDW-SFO
$138
6/10Mon
nonstopFrontier
4h 11mSFO-MDW
6/19Wed
nonstopFrontier
4h 28mMDW-SFO
$140
9/28Sat
1 stopSpirit Airlines
6h 31mSJC-STL
10/1Tue
1 stopSpirit Airlines
9h 54mSTL-SJC
$142
6/18Tue
1 stopSpirit Airlines
13h 52mSJC-STL
7/17Wed
1 stopSpirit Airlines
6h 21mSTL-SJC
$143
8/21Wed
nonstopUnited Airlines
4h 08mSFO-ORD
8/22Thu
nonstopUnited Airlines
4h 36mORD-SFO
$146
8/13Tue
nonstopUnited Airlines
4h 18mSFO-ORD
8/21Wed
nonstopUnited Airlines
4h 36mORD-SFO
$160
9/17Tue
nonstopAmerican Airlines
4h 14mSFO-ORD
10/16Wed
nonstopAmerican Airlines
4h 36mORD-SFO
$170
7/22Mon
1 stopAmerican Airlines
6h 30mSFO-STL
7/27Sat
1 stopAmerican Airlines
8h 10mSTL-SFO
$223
9/5Thu
1 stopDelta
5h 51mSFO-MDW
9/10Tue
1 stopDelta
7h 40mMDW-SFO
$236
9/4Wed
1 stopDelta
5h 43mSFO-ORD
9/14Sat
1 stopDelta
6h 58mORD-SFO
$236

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Recent one-way flight deals

6/5Wed
1 stopSpirit Airlines
5h 50mOAK-STL
$40
6/26Wed
1 stopSpirit Airlines
5h 50mOAK-STL
$62
6/6Thu
1 stopFrontier
11h 10mSFO-STL
$84
6/10Mon
2 stopsFrontier
7h 37mSFO-STL
$87
7/23Tue
nonstopUnited Airlines
4h 14mSFO-ORD
$90
7/13Sat
nonstopAmerican Airlines
4h 13mSFO-ORD
$95
8/5Mon
nonstopUnited Airlines
4h 18mSFO-ORD
$97
11/8Fri
nonstopAmerican Airlines
4h 15mSFO-ORD
$103
8/2Fri
1 stopDelta
8h 43mSFO-MDW
$118
10/2Wed
1 stopDelta
6h 57mSFO-ORD
$118

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Last minute flights from San Francisco Bay Area to Illinois

Last minute flight, train and bus deals

6/3Mon
nonstopFrontier
4h 12mSFO-MDW
6/7Fri
nonstopFrontier
4h 28mMDW-SFO
$141
6/3Mon
nonstopFrontier
4h 12mSFO-MDW
6/7Fri
nonstopFrontier
4h 28mMDW-SFO
$163
6/4Tue
multi-stopSpirit Airlines
5h 52mSJC-ORD
6/11Tue
multi-stopSpirit Airlines
12h 23mORD-SJC
$205
6/4Tue
multi-stopSpirit Airlines
5h 52mSJC-ORD
6/12Wed
multi-stopSpirit Airlines
11h 55mORD-SJC
$224
6/1Sat
multi-stopUnited Airlines
7h 59mSFO-STL
6/5Wed
multi-stopUnited Airlines
8h 20mSTL-SFO
$268
5/31Fri
multi-stopAmerican Airlines
8h 57mSFO-STL
6/3Mon
multi-stopAmerican Airlines
6h 15mSTL-SFO
$283
6/4Tue
nonstopAmerican Airlines
4h 22mSFO-ORD
6/11Tue
nonstopAmerican Airlines
4h 40mORD-SFO
$334
6/4Tue
multi-stopDelta
8h 45mSFO-ORD
6/5Wed
multi-stopDelta
6h 40mORD-SFO
$352
6/1Sat
nonstopUnited Airlines
4h 20mSFO-ORD
7/4Thu
nonstopUnited Airlines
4h 43mORD-SFO
$400
6/4Tue
multi-stopDelta
6h 45mSFO-ORD
6/11Tue
multi-stopDelta
6h 25mORD-SFO
$439

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