Cheap flights from Illinois to San Francisco (SFO) from $44
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. 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.
How far in advance should I book a flight from Illinois to San Francisco?
To save on the cost of your flight from Illinois to San Francisco, book at least 57 days before your planned departure. Booking around this time can save you about 40% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $354 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $517.
What is the cheapest month to fly from Illinois to San Francisco?
September is one of the best times of the year to fly to San Francisco from Illinois. Prices for September average $338 per person but you can even find prices for as low as $119. The most expensive prices can be found in the month of March. Opting for a September flight can save you 21% on your journey compared to booking in March
When is the cheapest time to fly from Illinois to San Francisco (IL - SFO)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to San Francisco as you normally would.
Cheap American Airlines flights from Illinois to San Francisco
Explore cheap flight options specifically provided by American Airlines for the route between Illinois and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Check out some of the cheapest American Airlines flights we've come across from Illinois to San Francisco. Make sure to double check the flight details before booking.
Cheap Delta flights from Illinois to San Francisco
Explore cheap flight options specifically provided by Delta for the route between Illinois and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Some of the best deals we've found on Delta flights traveling from Illinois to San Francisco. Check back soon if you're not seeing flights that suit your needs.
Cheap Illinois to San Francisco flights in April & May 2024
Find cheap flight options from Illinois to San Francisco specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 25, 2024.
Check out some of the best flight deals from Illinois to San Francisco in 2024. Check back soon for alternative fares.
Illinois to San Francisco 2024 flight deals
Discover exclusive flight deals for travel between Illinois and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Check out some of the best flight deals from Illinois to San Francisco in 2024. Check back soon for alternative fares.
Non-stop flights to San Francisco from Illinois
Discover non-stop flight options from Illinois to San Francisco. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Consider booking one of these non-stop flights heading from Illinois to San Francisco. Those looking to potentially save on 1 or 2-stop flights from Illinois to San Francisco should utilize the search form at the the top of the page.
Illinois to San Francisco flights leaving soon
Find last-minute flight options from Illinois to San Francisco for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Consider one of these great deals we found on last-minute flights from Illinois to San Francisco. Tip: verify your flight details before completing your reservation.
One-way flights to San Francisco from Illinois
Search for one-way flight options from Illinois to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Users in need of a one-way flight from Illinois to San Francisco can choose from these deals. For those needing a return trip from Illinois, there is a search form available above.
Find flights from Illinois to San Francisco within your budget
Customize your flight search to find flights from Illinois to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Fly from
Fly to
Budget
$98 - $248
Route
Depart
Return
Price
Chicago MidwaySan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 5/18
Nonstop4h 29m
San Francisco
Sat 5/25
Nonstop4h 12m
Chicago MidwaySan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 5/18
Nonstop4h 29m
San Francisco
Sat 5/25
Nonstop4h 12m
Chicago MidwaySan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 5/18
Nonstop4h 29m
San Francisco
Wed 5/29
Nonstop4h 12m
Chicago O'Hare IntlSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Sat 5/18
1 stop6h 42m
San Francisco
Sat 5/25
Nonstop4h 23m
Chicago O'Hare IntlSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Tue 6/4
Nonstop4h 44m
San Francisco
Tue 6/4
Nonstop4h 23m
Chicago O'Hare IntlSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Wed 5/8
Nonstop4h 53m
San Francisco
Sat 5/18
Nonstop4h 17m
Chicago O'Hare IntlSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Thu 6/6
1 stop15h 37m
San Francisco
Sun 6/9
1 stop17h 07m
Chicago MidwaySan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Tue 7/2
1 stop7h 20m
San Francisco
Tue 7/9
1 stop8h 55m
Chicago O'Hare IntlSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Sat 9/7
1 stop8h 26m
San Francisco
Sun 9/15
Nonstop4h 20m
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated April 25, 2024.
See what other customers who have flown with American Airlines, Delta and Alaska Airlines from Illinois to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.
Related info for your journey
Find useful and relevant information for your journey from Illinois to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Illinois to San FranciscoSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Illinois to San Francisco
Discover the top 6 airlines that operate flights from Illinois to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Search flights from Illinois to San Francisco by cabin class
Find flights from Illinois to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Illinois to San Francisco
Find hourly flight availability from Illinois to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2024.
| 8%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 40%of flight departures | Morning6 am to noon |
| 31%of flight departures | AfternoonNoon to 6 pm |
| 21%of flight departures | Evening6 pm to midnight |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Illinois to San Francisco?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Illinois today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Illinois to San Francisco?
Millions of users choose and trust Cheapflights to book the best flight deals from Illinois to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Illinois to San Francisco with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Illinois to San Francisco flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Illinois to San Francisco become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Illinois today and book when prices fit your budget.