Cheap flights from Illinois to California from $43
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to California departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Illinois to California
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to California?
The month of August is another great option to travel to California, with average flight prices from Illinois averaging around $239.
What is the cheapest day to depart on your flight to California?
The cheapest day to depart from Illinois to California is on a Friday. Travelers who choose to depart for California on a Friday will often find tickets for as low as $351. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to California on Monday is $515.
What is the cheapest time of day to depart on your flight to California?
The cheapest time of day to fly to California is in the morning when flights can be purchased for as low as $347. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $832 on average. Flights to California from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Illinois to California flight route?
Fly from Chicago O'Hare Intl to Los Angeles for the best Illinois - California flight prices
How far in advance should I book a flight to California?
You are more likely to see cheaper flights to California from Illinois when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to California for around $274 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Illinois for as low as $227 on momondo.
What cabin class options are available on Illinois to California flights?
There are 4 cabin classes available to choose from on Illinois to California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Illinois to California?
Spirit Airlines, Frontier, and Allegiant Air are the most popular carriers operating from Illinois to California
What airlines fly to California?
American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to California from Illinois according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to California. Keep in mind that there are 10 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to California on average per day?
As of June 2025, 313 flights take off from Illinois and land in California each day. The most common flight departure time for this route is 6:00PM, with 34% of daily flights taking off at noon.
How many flights depart from Illinois to California on average per week?
As of June 2025, there are 2,192 flights per week flying from Illinois to California. The most common day of the week flights depart is Thu, with 18% of flights taking off on this day.
Cheap Illinois to California flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to California
When did momondo last update prices for flights from Illinois to California?
Prices for flights from Illinois to California were last updated today.
How many operators does momondo search for flights from Illinois to California?
There are 10 operators available for flights from Illinois to California as of June 2025.
How old do you have to be to fly from Illinois to California?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to California.
What documentation or ID do you need to fly to California?
The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to California?
Based on momondo bookings for flights between Illinois and California, the leading plane model is Boeing 737-800, making up 19.47% of the total bookings. Other popular models include Airbus A321neo with 18.43%, Boeing 757-300 with 9.14%, and Boeing 737 MAX 8 with 7.83%.
Best airlines flying from Illinois to California
Compare and see reviews for airlines that fly from Illinois to California with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $49 | Free Cancellation | Rating 7.3 725 reviews | |||
| PriceFrom $78 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $88 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $108 | Free Cancellation | Rating 7.8 2,494 reviews | |||
| PriceFrom $128 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $137 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $147 | Free Cancellation | Rating 6.9 345 reviews | |||
| PriceFrom $167 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $207 | Free Cancellation | Rating 8.0 4,287 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to California?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to California. momondo saves you time and could save you money on your trip.
Can I find flights from Illinois to California with flexible booking policies on momondo?
Yes. All flights to California from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Illinois to California?
Once all potential Illinois to California flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Illinois to California right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Illinois to California now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to California and let you know when they change.