Cheap flights from San Francisco (SFO) to Illinois 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 8/24. 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.
SFO — ORD
May 13 — May 201
From?
To?
1 adult, Economy
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How far in advance should I book a flight from San Francisco to Illinois?
Find a great deal and save up to 40% by booking at least 47 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to Illinois within the next two weeks, with the cheapest ticket starting at $324.
What is the cheapest month to fly from San Francisco to Illinois?
October can be a great time to fly to Illinois from San Francisco with a flight ticket averaging about $321. Cheapflights users have found deals in the month of October for as cheap as $88. The most expensive prices can be found in the month of June.
When is the cheapest time to fly from San Francisco to Illinois (SFO - IL)?
When flying from San Francisco to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap Alaska Airlines flights from San Francisco to Illinois
Explore cheap flight options specifically provided by Alaska Airlines for the route between San Francisco and Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Find some of the cheapest Alaska Airlines flights traveling from San Francisco to Illinois. Deals update often to give you more flight options matching your criteria
Wed 8/1411:59 pmSFO - ORD
Nonstop4h 21mAlaska Airlines
Wed 8/215:25 pmORD - SFO
Nonstop4h 44mAlaska Airlines
Deal found 5/8$179
Sat 9/289:55 amSFO - ORD
Nonstop4h 20mAlaska Airlines
Wed 10/27:00 amORD - SFO
1 stop9h 38mAlaska Airlines
Deal found 5/6$188
Tue 5/284:55 pmSFO - ORD
1 stop9h 45mAlaska Airlines
Wed 5/297:00 amORD - SFO
Nonstop4h 37mAlaska Airlines
Deal found 5/7$193
Sat 8/1010:54 pmSFO - ORD
Nonstop4h 21mAlaska Airlines
Thu 8/156:35 amORD - SFO
Nonstop4h 37mAlaska Airlines
Deal found 5/7$194
Wed 7/2411:59 pmSFO - ORD
Nonstop4h 21mAlaska Airlines
Thu 8/16:35 amORD - SFO
Nonstop4h 37mAlaska Airlines
Deal found 5/7$199
Sat 5/2511:12 pmSFO - ORD
Nonstop4h 23mAlaska Airlines
Sat 6/15:55 pmORD - SFO
Nonstop4h 44mAlaska Airlines
Deal found 5/7$202
Tue 5/287:55 pmSFO - ORD
1 stop6h 45mAlaska Airlines
Thu 5/305:55 pmORD - SFO
Nonstop4h 44mAlaska Airlines
Deal found 5/8$211
Tue 5/2111:57 pmSFO - ORD
Nonstop4h 23mAlaska Airlines
Sun 5/267:00 amORD - SFO
Nonstop4h 37mAlaska Airlines
Deal found 5/6$247
Tue 5/2111:57 pmSFO - ORD
Nonstop4h 23mAlaska Airlines
Tue 5/287:00 amORD - SFO
Nonstop4h 37mAlaska Airlines
Deal found 5/7$310
Cheap American Airlines flights from San Francisco to Illinois
Explore cheap flight options specifically provided by American Airlines for the route between San Francisco and Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Browse through some of the cheapest American Airlines flights traveling from San Francisco to Illinois. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sat 7/1311:51 pmSFO - ORD
Nonstop4h 13mAmerican Airlines
Wed 7/178:24 amORD - SFO
Nonstop4h 45mAmerican Airlines
Deal found 5/7$209
Wed 6/56:00 amSFO - ORD
Nonstop4h 19mAmerican Airlines
Mon 6/178:15 pmORD - SFO
Nonstop4h 40mAmerican Airlines
Deal found 5/7$229
Thu 9/1911:59 pmSFO - PIA
1 stop8h 53mAmerican Airlines
Wed 9/254:40 pmPIA - SFO
1 stop8h 08mAmerican Airlines
Deal found 5/8$232
Tue 5/2811:58 pmSFO - ORD
Nonstop4h 22mAmerican Airlines
Fri 5/319:20 pmORD - SFO
Nonstop4h 44mAmerican Airlines
Deal found 5/8$242
Sat 6/1511:57 pmSFO - ORD
Nonstop4h 18mAmerican Airlines
Tue 6/188:25 amORD - SFO
Nonstop4h 48mAmerican Airlines
Deal found 5/8$254
Tue 5/216:00 amSFO - ORD
Nonstop4h 17mAmerican Airlines
Wed 5/2912:15 pmORD - SFO
1 stop8h 03mAmerican Airlines
Deal found 5/7$283
Tue 5/146:00 amSFO - ORD
Nonstop4h 17mAmerican Airlines
Sat 5/189:45 amORD - SFO
Nonstop4h 44mAmerican Airlines
Deal found 5/7$287
Wed 5/226:00 amSFO - ORD
Nonstop4h 17mAmerican Airlines
Sat 5/251:42 pmORD - SFO
Nonstop4h 45mAmerican Airlines
Deal found 5/7$331
Tue 5/146:00 amSFO - CMI
1 stop7h 59mAmerican Airlines
Mon 5/204:30 pmCMI - SFO
1 stop9h 18mAmerican Airlines
Deal found 5/7$344
Cheap San Francisco to Illinois flights in May & June 2024
Find cheap flight options from San Francisco to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Prices were last updated on May 8, 2024.
These are some of the most attractive deals on flights from San Francisco to Illinois in 2024. Check back in a little while for more flight options.
Wed 5/229:11 amSFO - MDW
Nonstop4h 12mFrontier
Fri 5/314:18 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/8$117
Wed 5/229:11 amSFO - MDW
Nonstop4h 12mFrontier
Sat 5/254:28 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/8$134
Wed 5/299:11 amSFO - MDW
Nonstop4h 12mFrontier
Sat 6/14:28 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/7$136
Sat 6/110:07 amSFO - STL
1 stop22h 06mFrontier
Tue 6/42:12 pmSTL - SFO
1 stop9h 50mFrontier
Deal found 5/7$145
Wed 5/229:11 amSFO - MDW
Nonstop4h 12mFrontier
Wed 5/294:18 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/8$149
Fri 5/3112:59 amSFO - STL
1 stop6h 26mFrontier
Tue 6/47:23 pmSTL - SFO
1 stop7h 18mFrontier
Deal found 5/7$150
Sat 6/89:09 amSFO - MDW
Nonstop4h 11mFrontier
Sat 6/154:18 pmMDW - SFO
Nonstop4h 28mFrontier
Deal found 5/7$153
Fri 5/3111:25 amSFO - STL
1 stop8h 06mFrontier
Tue 6/47:23 pmSTL - SFO
1 stop7h 18mFrontier
Deal found 5/8$153
Tue 5/143:58 pmSFO - MDW
Nonstop4h 11mFrontier
Wed 5/1512:29 pmMDW - SFO
Nonstop4h 39mFrontier
Deal found 5/7$158
San Francisco to Illinois 2024 flight deals
Discover exclusive flight deals for travel between San Francisco and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
These are some of the most attractive deals on flights from San Francisco to Illinois in 2024. Check back in a little while for more flight options.
Sat 9/219:03 amSFO - MDW
Nonstop4h 11mFrontier
Wed 9/254:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$88
Sat 9/289:03 amSFO - MDW
Nonstop4h 11mFrontier
Wed 10/24:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$89
Wed 8/149:03 amSFO - MDW
Nonstop4h 11mFrontier
Wed 8/214:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$90
Wed 9/49:03 amSFO - MDW
Nonstop4h 11mFrontier
Sat 9/74:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$96
Wed 10/99:03 amSFO - MDW
Nonstop4h 11mFrontier
Wed 10/164:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$105
Wed 9/189:03 amSFO - MDW
Nonstop4h 11mFrontier
Mon 9/234:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$108
Wed 5/229:11 amSFO - MDW
Nonstop4h 12mFrontier
Fri 5/314:18 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/8$117
Wed 10/239:03 amSFO - MDW
Nonstop4h 11mFrontier
Sat 10/264:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/6$118
Mon 9/239:03 amSFO - MDW
Nonstop4h 11mFrontier
Fri 9/274:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/8$128
Non-stop flights to Illinois from San Francisco
Discover non-stop flight options from San Francisco to Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
For a quicker trip, book one of these direct flights from San Francisco to Illinois. Users seeking other options on flights from San Francisco to Illinois should update the search form at the top of the page.
Sat 5/259:11 amSFO - MDW
Nonstop4h 12mFrontier
Sat 6/14:28 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/7$167
Sat 5/259:11 amSFO - MDW
Nonstop4h 12mFrontier
Sat 6/154:18 pmMDW - SFO
Nonstop4h 28mFrontier
Deal found 5/7$169
Mon 6/109:09 amSFO - MDW
Nonstop4h 11mFrontier
Sat 6/154:18 pmMDW - SFO
Nonstop4h 28mFrontier
Deal found 5/7$175
Mon 5/209:15 amSFO - MDW
Nonstop4h 12mFrontier
Fri 5/314:18 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/8$176
Mon 6/109:09 amSFO - MDW
Nonstop4h 11mFrontier
Sat 6/154:18 pmMDW - SFO
Nonstop4h 28mFrontier
Deal found 5/7$177
Tue 8/611:59 pmSFO - ORD
Nonstop4h 21mAlaska Airlines
Wed 8/146:35 amORD - SFO
Nonstop4h 37mAlaska Airlines
Deal found 5/7$179
Wed 7/249:03 amSFO - MDW
Nonstop4h 11mFrontier
Fri 8/94:09 pmMDW - SFO
Nonstop4h 38mFrontier
Deal found 5/7$180
Mon 6/39:15 amSFO - MDW
Nonstop4h 12mFrontier
Wed 6/54:18 pmMDW - SFO
Nonstop4h 28mFrontier
Deal found 5/7$182
Wed 5/299:11 amSFO - MDW
Nonstop4h 12mFrontier
Mon 6/34:41 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/7$183
San Francisco to Illinois flights leaving soon
Find last-minute flight options from San Francisco to Illinois 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 2,752,338 searches. Data last updated May 8, 2024.
Have a look at some of the flights available from San Francisco to Illinois departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Tue 5/143:58 pmSFO - MDW
Nonstop4h 11mFrontier
Wed 5/1512:29 pmMDW - SFO
Nonstop4h 39mFrontier
Deal found 5/7$158
Wed 5/153:58 pmSFO - MDW
Nonstop4h 11mFrontier
Sat 5/254:28 pmMDW - SFO
Nonstop4h 29mFrontier
Deal found 5/7$162
Sat 5/187:47 pmSFO - STL
1 stop24h 45mFrontier
Tue 5/217:23 pmSTL - SFO
1 stop19h 18mFrontier
Deal found 5/7$165
Sat 5/186:34 pmSFO - ORD
1 stop8h 26mFrontier
Tue 5/217:59 pmORD - SFO
1 stop6h 42mFrontier
Deal found 5/7$167
Sat 5/186:34 pmSFO - STL
1 stop13h 39mFrontier
Tue 5/217:23 pmSTL - SFO
1 stop19h 18mFrontier
Deal found 5/8$169
Wed 5/158:28 pmSFO - ORD
1 stop22h 55mFrontier
Tue 5/217:59 pmORD - SFO
1 stop6h 42mFrontier
Deal found 5/7$169
Sat 5/187:47 pmSFO - STL
1 stop24h 45mFrontier
Wed 5/227:23 pmSTL - SFO
1 stop7h 18mFrontier
Deal found 5/8$175
Mon 5/2012:59 amSFO - ORD
1 stop18h 16mFrontier
Tue 5/287:59 pmORD - SFO
1 stop6h 42mFrontier
Deal found 5/7$178
Tue 5/147:01 pmSFO - ORD
1 stop27h 55mFrontier
Wed 5/227:59 pmORD - SFO
1 stop6h 42mFrontier
Deal found 5/7$179
One-way flights to Illinois from San Francisco
Search for one-way flight options from San Francisco to Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Some of the best available deals we've found on one-way flights from San Francisco to Illinois. Users can also find round-trip San Francisco to Illinois flights by using the search form above.
Sat 8/249:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$44
Wed 8/219:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$46
Wed 5/229:11 amSFO - MDW
Nonstop4h 12mFrontier
Deal found 5/8$47
Wed 8/219:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$49
Wed 8/289:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$52
Wed 8/219:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/6$53
Fri 8/239:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$64
Mon 8/269:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$65
Mon 8/129:03 amSFO - MDW
Nonstop4h 11mFrontier
Deal found 5/7$66
Find flights from San Francisco to Illinois within your budget
Customize your flight search to find flights from San Francisco to Illinois 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 2,752,338 searches. Data last updated May 8, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$88 - $252
Route
Depart
Return
Price
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Sat 9/21
Nonstop4h 11m
Chicago Midway
Wed 9/25
Nonstop4h 38m
$88
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Sat 9/28
Nonstop4h 11m
Chicago Midway
Wed 10/2
Nonstop4h 38m
$89
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Wed 8/14
Nonstop4h 11m
Chicago Midway
Wed 8/21
Nonstop4h 38m
$90
San FranciscoChicago Midway
SFO - MDW
SFOMDW
San Francisco
Wed 9/4
Nonstop4h 11m
Chicago Midway
Sat 9/7
Nonstop4h 38m
$96
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 8/14
Nonstop4h 21m
Chicago O'Hare Intl
Wed 8/21
Nonstop4h 44m
$179
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 8/14
1 stop8h 29m
Chicago O'Hare Intl
Wed 8/21
Nonstop4h 44m
$185
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Sat 7/13
Nonstop4h 13m
Chicago O'Hare Intl
Wed 7/17
Nonstop4h 45m
$209
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 8/7
Nonstop4h 18m
Chicago O'Hare Intl
Mon 8/12
Nonstop4h 40m
$240
San FranciscoChicago O'Hare Intl
SFO - ORD
SFOORD
San Francisco
Wed 6/26
1 stop8h 28m
Chicago O'Hare Intl
Sat 6/29
1 stop6h 44m
$252
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 8, 2024.
Get a feel of what it's like to fly with Alaska Airlines, American Airlines and United Airlines from San Francisco to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
9,141 reviews
Crew
8.6
Food
7.3
Entertainment
7.3
Overall
8.1
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,141 reviews
9,141 reviews
Crew
8.6
Food
7.3
Entertainment
7.3
Overall
8.1
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,789 reviews
9,141 reviews
Crew
8.6
Food
7.3
Entertainment
7.3
Overall
8.1
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
11,043 reviews
9,141 reviews
Crew
8.6
Food
7.3
Entertainment
7.3
Overall
8.1
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,677 reviews
9,141 reviews
Crew
8.6
Food
7.3
Entertainment
7.3
Overall
8.1
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
640 reviews
9,141 reviews
Crew
8.6
Food
7.3
Entertainment
7.3
Overall
8.1
Boarding
8.2
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Illinois. 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 San Francisco to IllinoisSee 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 San Francisco to Illinois
Discover the top 6 airlines that operate flights from San Francisco to Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Search flights from San Francisco to Illinois by cabin class
Find flights from San Francisco to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from San Francisco to Illinois
Find hourly flight availability from San Francisco to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 8, 2024.
| 18%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 45%of flight departures | Morning6 am to noon |
| 18%of flight departures | AfternoonNoon to 6 pm |
| 19%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
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 San Francisco to Illinois?
Deals for San Francisco to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Illinois?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Illinois.
Can Cheapflights find flights from San Francisco to Illinois with no change fees?
Certainly. Search results for flights to Illinois from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from San Francisco to Illinois become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from San Francisco today and book when prices fit your budget.