$53 Find Cheap Flights from Illinois to San Francisco Bay Area

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1 adult, Economy

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Useful Info

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$53
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Chicago Midway Airport to San Francisco

FAQs for booking flights from Illinois to San Francisco Bay Area

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

    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 Illinois to San Francisco Bay Area.

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

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

    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 from Illinois to San Francisco Bay Area with an airline and back with another airline.

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

    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 from Illinois to San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in San Francisco Bay Area?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in San Francisco Bay Area is San Francisco Airport (SFO), with an average flight price of $207.

  • What is the cheapest day to fly to San Francisco Bay Area?

    Based on KAYAK data, the cheapest day to fly to San Francisco Bay Area is Thursday where round-trip tickets can be as cheap as $360. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $525 on average.

  • What is the cheapest time of day to fly to San Francisco Bay Area?

    The cheapest time of day to fly to San Francisco Bay Area is generally at night, when round-trip flights cost $384 on average. Morning departures are around 14% cheaper than evening flights, on average. The most expensive time of day to fly to San Francisco Bay Area is generally in the evening, which is peak travel time and where the average cost of a ticket is $462.

  • What is the cheapest flight to San Francisco Bay Area?

    The cheapest ticket to San Francisco Bay Area from Illinois found in the last 72 hours was to San Francisco, at $122 round-trip. The most popular route is Chicago Midway Airport (MDW) to San Francisco (SFO) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $122.

  • What is the cheapest month to fly from Illinois to San Francisco Bay Area?

    The cheapest month for flights from Illinois to San Francisco Bay Area is September, when tickets cost $196 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $512 and $472 respectively.

  • How far in advance should I book a flight from Illinois to San Francisco Bay Area?

    To get a below average price on the flight from Illinois to San Francisco Bay Area, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

  • How long is the flight to San Francisco Bay Area?

    An average nonstop flight from Illinois to San Francisco Bay Area takes 9h 24m, covering a distance of 1772 miles. The shortest route is St. Louis (STL) to San Francisco (SFO) with an average flight time of 4h 10m.

  • What are the most popular destinations in San Francisco Bay Area?

    Based on KAYAK flight searches, the most popular destination is San Francisco (73% of total searches to San Francisco Bay Area). The next most popular destinations are San Jose (14%) and Oakland (12%). Searches for flights to Santa Rosa (1%) are also popular.

Book cheap flights from Illinois to San Francisco Bay Area

Recent round-trip flight deals

9/12Fri
1 stopFrontier
12h 56mORD-SFO
9/15Mon
1 stopFrontier
6h 48mSFO-ORD
$94
9/5Fri
1 stopFrontier
12h 56mORD-SFO
9/8Mon
1 stopFrontier
6h 48mSFO-ORD
$95
7/10Thu
1 stop
7h 42mORD-SJC
7/22Tue
1 stop
5h 43mSJC-ORD
$163
8/16Sat
nonstop
4h 48mORD-SFO
8/25Mon
1 stop
7h 01mSFO-ORD
$169
8/13Wed
1 stopSpirit Airlines
6h 09mORD-SJC
8/20Wed
1 stopSpirit Airlines
10h 09mSJC-ORD
$172
10/17Fri
1 stopSpirit Airlines
6h 53mORD-OAK
10/19Sun
1 stopSpirit Airlines
15h 07mOAK-ORD
$173
8/31Sun
nonstopAmerican Airlines
4h 30mORD-SFO
9/6Sat
nonstopAmerican Airlines
4h 18mSFO-ORD
$188
8/23Sat
nonstopSouthwest
4h 30mMDW-OAK
8/31Sun
nonstopSouthwest
4h 05mOAK-MDW
$188
8/23Sat
nonstopAmerican Airlines
4h 35mORD-SFO
8/31Sun
nonstopAmerican Airlines
4h 20mSFO-ORD
$189
10/21Tue
nonstopSouthwest
4h 30mMDW-SFO
10/25Sat
nonstopSouthwest
4h 05mSFO-MDW
$197

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Recent one-way flight deals

7/29Tue
1 stopFrontier
11h 08mMDW-SFO
$53
10/4Sat
1 stopFrontier
10h 51mORD-SFO
$53
8/26Tue
2 stopsSpirit Airlines
17h 19mORD-OAK
$72
8/19Tue
2 stopsSpirit Airlines
17h 19mORD-OAK
$74
9/29Mon
1 stop
14h 00mMDW-OAK
$88
8/31Sun
nonstopUnited Airlines
4h 42mORD-SFO
$90
8/31Sun
nonstopSouthwest
4h 30mMDW-OAK
$90
9/29Mon
1 stop
14h 17mMDW-SJC
$95
9/2Tue
nonstopUnited Airlines
4h 46mORD-SFO
$99
8/12Tue
nonstopSouthwest
4h 35mMDW-SFO
$99

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Last minute flights from Illinois to San Francisco Bay Area

Last minute flight, train and bus deals

7/4Fri
multi-stopFrontier
7h 40mORD-SFO
7/12Sat
multi-stopFrontier
10h 30mSFO-ORD
$169
7/4Fri
multi-stopFrontier
7h 40mORD-SFO
7/31Thu
multi-stopFrontier
10h 30mSFO-ORD
$179
7/4Fri
multi-stop
7h 40mORD-SFO
7/12Sat
nonstop
4h 23mSFO-ORD
$286
7/5Sat
nonstopAmerican Airlines
4h 34mORD-SFO
7/19Sat
nonstopAmerican Airlines
4h 18mSFO-ORD
$293
7/5Sat
multi-stopDelta
10h 02mORD-SFO
7/18Fri
multi-stopDelta
5h 35mSFO-ORD
$308
7/4Fri
nonstop
4h 48mORD-SFO
7/7Mon
multi-stop
11h 21mSFO-ORD
$318
7/4Fri
nonstopAmerican Airlines
4h 43mORD-SFO
7/7Mon
nonstopAmerican Airlines
4h 22mSFO-ORD
$327
7/4Fri
multi-stopAlaska Airlines
9h 12mORD-SFO
7/8Tue
nonstopAlaska Airlines
4h 23mSFO-ORD
$343
7/4Fri
multi-stopDelta
9h 15mORD-SFO
7/6Sun
multi-stopDelta
8h 59mSFO-ORD
$347
7/1Tue
multi-stopAlaska Airlines
8h 09mORD-OAK
7/12Sat
multi-stopAlaska Airlines
7h 42mOAK-ORD
$567

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Everything you need to know for your flight to San Francisco Bay Area

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to San Francisco Bay Areafrom $279
Business Class flights to San Francisco Bay Areafrom $285
Prem Econ Class flights to San Francisco Bay Areafrom $108
Economy Class flights to San Francisco Bay Areafrom $25

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