$51 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
Cheapest flight$51
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Chicago O'Hare Airport to Oakland

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 airlines fly most frequently to San Francisco Bay Area?

    Illinois and San Francisco Bay Area are connected by different airlines. The airlines that fly that route the most regularly are Air New Zealand (113 flights per week), Air Canada (112 flights per week), and United Airlines (107 flights per week).

  • How many airports are there in San Francisco Bay Area?

    There are 2 airports in San Francisco Bay Area. The busiest airport is San Francisco Airport (SFO), with 88% of all flights arriving there.

  • 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 $240.

  • 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 $351. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $523 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 $375 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 $454.

  • 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 Oakland, at $197 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 $197.

  • 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 August, when tickets cost $355 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $512 and $476 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, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

  • How many cities have direct flights to San Francisco Bay Area?

    From Illinois, there are direct flights to San Francisco Bay Area from 1 city. This city is Chicago and there are 780 direct flights each week.

  • How many direct flights to San Francisco Bay Area are there each day?

    There are around 112 direct flights from within Illinois to San Francisco Bay Area every day. Most flights (37%) depart in the morning.

  • How many direct flights to San Francisco Bay Area are there each week?

    Each week there are around 780 direct flights from within Illinois to San Francisco Bay Area. The most common day for departures is Sunday, with 19% of flights taking off on this day.

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

    An average nonstop flight from Illinois to San Francisco Bay Area takes 8h 41m, 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.

  • How many long-haul flights are there to San Francisco Bay Area each week?

    There are not any long-haul (6-12 hour flight duration) or short-haul (up to 3 hour flight duration) flights to San Francisco Bay Area. Instead, there are 780 medium-haul flights (3-6 hour flight duration), with the most arriving from Chicago.

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

    Based on KAYAK flight searches, the most popular destination is San Francisco (76% of total searches to San Francisco Bay Area). The next most popular destinations are San Jose (12%) and Oakland (11%). Searches for flights to Santa Rosa (1%) are also popular.

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 $227
Business Class flights to San Francisco Bay Areafrom $92
Prem Econ Class flights to San Francisco Bay Areafrom $108
Economy Class flights to San Francisco Bay Areafrom $25

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