$230+ Cheap flights from Illinois to Cali (CLO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CLO
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Cali with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Cali
Cheapest
Best
Last-minute
One-way
Cheapest flights from Illinois to CaliExplore the most affordable flight options available from Illinois to Cali. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
Explore the most affordable flight options available from Illinois to Cali. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:13 pm -
1 stop25h 56m
Sat 11/712:05 pm -
1 stop13h 06m
Deal found 10/17![Copa Airlines logo]()
$470
This Copa Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:13 pm -
1 stop22h 53m
Wed 12/28:40 am -
1 stop16h 31m
Deal found 10/16![Copa Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:35 am -
1 stop29h 31m
Tue 12/153:12 pm -
1 stop9h 59m
Deal found 10/19![Copa Airlines logo]()
$475
This Copa Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:13 pm -
1 stop8h 24m
Sun 11/112:05 pm -
1 stop13h 06m
Deal found 10/19![Copa Airlines logo]()
$477
This Avianca deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:20 pm -
1 stop9h 40m
Wed 10/289:55 am -
1 stop11h 35m
Deal found 10/20![Avianca logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:13 pm -
1 stop26h 19m
Tue 12/13:01 pm -
1 stop22h 45m
Deal found 10/16![Copa Airlines logo]()
$482
This American Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:29 pm -
1 stop17h 46m
Sat 10/242:15 pm -
1 stop19h 15m
Deal found 10/17![American Airlines logo]()
$488
This Copa Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:20 pm -
1 stop22h 50m
Wed 10/2812:09 pm -
1 stop12h 56m
Deal found 10/16![Copa Airlines logo]()
$493
This Copa Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:35 am -
1 stop15h 02m
Thu 10/2912:09 pm -
1 stop12h 56m
Deal found 10/19![Copa Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:00 am -
2 stops17h 33m
Tue 12/812:02 pm -
2 stops35h 57m
Deal found 10/17![United Airlines logo]()
$2,122
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:42 am -
2 stops33h 51m
Fri 12/118:40 am -
2 stops37h 17m
Deal found 10/19![United Airlines logo]()
$2,142
Best flights from Illinois to CaliDiscover carefully curated flight deals from Illinois to Cali that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
Discover carefully curated flight deals from Illinois to Cali that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
This Copa Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/232:13 pm -
1 stop22h 56m
Sat 1/3012:03 pm -
1 stop25h 43m
Deal found 10/20![Copa Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
2 stops16h 32m
Wed 12/28:40 am -
2 stops25h 31m
Deal found 10/16![United Airlines logo]()
$512
This Copa Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:13 pm -
1 stop26h 19m
Wed 11/118:42 am -
1 stop16h 29m
Deal found 10/18![Copa Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:48 pm -
2 stops24h 44m
Mon 11/1612:05 pm -
2 stops22h 06m
Deal found 10/20![United Airlines logo]()
$520
This Copa Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/112:13 pm -
1 stop22h 56m
Tue 1/2612:03 pm -
1 stop25h 43m
Deal found 10/20![Copa Airlines logo]()
$530
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:30 am -
2 stops11h 02m
Mon 12/144:38 am -
2 stops12h 52m
Deal found 10/19![United Airlines logo]()
$545
This Copa Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:35 am -
1 stop8h 29m
Mon 11/1612:05 pm -
1 stop25h 41m
Deal found 10/17![Copa Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:35 pm -
2 stops18h 57m
Sat 11/74:38 am -
2 stops21h 07m
Deal found 10/17![United Airlines logo]()
$545
This Copa Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/117:35 am -
1 stop8h 58m
Mon 2/223:08 pm -
1 stop22h 38m
Deal found 10/16![Copa Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:30 am -
2 stops11h 02m
Fri 12/118:40 am -
2 stops13h 57m
Deal found 10/19![United Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:00 am -
2 stops17h 33m
Tue 12/812:02 pm -
2 stops35h 57m
Deal found 10/17![United Airlines logo]()
$2,122
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:42 am -
2 stops33h 51m
Fri 12/118:40 am -
2 stops37h 17m
Deal found 10/19![United Airlines logo]()
$2,142
Last-minute flights from Illinois to CaliDiscover last-minute flight deals from Illinois to Cali. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Cali. Data last updated October 20, 2026 and is based on user searches.
This Copa Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:01 am -
1 stop9h 51m
Sat 10/243:10 pm -
1 stop9h 47m
Deal found 10/19![Copa Airlines logo]()
$477
This American Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:29 pm -
1 stop17h 46m
Sat 10/242:15 pm -
1 stop19h 15m
Deal found 10/17![American Airlines logo]()
$488
This Avianca deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:20 pm -
1 stop9h 40m
Wed 10/289:55 am -
1 stop11h 35m
Deal found 10/19![Avianca logo]()
$478
This Copa Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:20 pm -
1 stop22h 50m
Wed 10/2812:09 pm -
1 stop12h 56m
Deal found 10/16![Copa Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:13 pm -
1 stop25h 56m
Sat 11/712:05 pm -
1 stop13h 06m
Deal found 10/17![Copa Airlines logo]()
$470
This Copa Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:35 am -
1 stop15h 02m
Thu 10/2912:09 pm -
1 stop12h 56m
Deal found 10/19![Copa Airlines logo]()
$510
This Copa Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:13 pm -
1 stop22h 53m
Wed 12/28:40 am -
1 stop16h 31m
Deal found 10/16![Copa Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:35 am -
1 stop29h 31m
Tue 12/153:12 pm -
1 stop9h 59m
Deal found 10/19![Copa Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:13 pm -
1 stop26h 19m
Tue 12/13:01 pm -
1 stop22h 45m
Deal found 10/16![Copa Airlines logo]()
$482
One-way flights from Illinois to CaliSearch for one-way flight options from Illinois to Cali. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
Search for one-way flight options from Illinois to Cali. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:30 am -
2 stops12h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$243
This Copa Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:20 pm -
1 stop19h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Copa Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:13 pm -
1 stop22h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Copa Airlines logo]()
$257
This United deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:39 am -
2 stops18h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:13 pm -
2 stops26h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:13 pm -
2 stops44h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Multiple Airlines logo]()
$283
This Copa Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:13 pm -
1 stop22h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Copa Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:35 am -
2 stops21h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1010:31 pm -
3 stops46h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$294
Find flight deals from Illinois to Cali
Keep the following information in mind while searching for Illinois to Cali flight deals. Data was last updated October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $473 (Copa Airlines) |
One-way from | $243 (United Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $562 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Cali 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 7,457,451 searches. Data last updated October 20, 2026.
Use the filters below to find and compare flights from Illinois to Cali that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Fri 1/22
10:30 am-11:34 pm
2 stops12h 04m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$230
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Sun 1/31
5:30 am-11:34 pm
2 stops17h 04m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$230
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Thu 11/19
2:13 pm-2:06 pm
1 stop22h 53m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$253
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Fri 1/22
2:13 pm-5:34 pm
1 stop26h 21m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$253
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Wed 11/18
2:13 pm-5:04 pm
1 stop25h 51m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$253
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Tue 11/17
10:39 am-5:55 am
2 stops18h 16m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$269
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Mon 11/2
2:13 pm-11:05 am
2 stops19h 52m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$273
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Tue 11/3
7:35 am-1:35 pm
3 stops29h 00m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$302
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Wed 11/18
5:30 am-12:50 am
2 stops18h 20m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$335
ChicagoCali
ORD Chicago O'Hare Intl - CLO Cali Alfonso B. Aragon Intl
ORDCLO
Chicago O'Hare Intl
Sun 11/29
7:50 pm-2:33 pm
1 stop17h 43m
Cali Alfonso B. Aragon Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$373
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Illinois to Cali
Have a flexible travel schedule? Discover the best time to fly to Cali from Illinois with our price prediction graph.
ORD-CLO
MLI-CLO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Cali
USIL-CLO
ORD-CLO
MLI-CLO
What is the cheapest month to book a flight from Illinois to Cali?
Currently, February is the cheapest month in which you can book a flight from Illinois to Cali (average of $307). Flying from Illinois to Cali in December is currently the most expensive (average of $834). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Illinois to Cali?
Airfare is typical for this route at the moment.
Illinois to Cali flights typically cost between $457 and $563 in November.The cheapest round-trip price found within the last 5 days was $473 on Copa Airlines (Nov 13-Dec 2).
How far ahead should I book a flight from Illinois to Cali?
The best time to book flights from Illinois to Cali is 37 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Cali. 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.
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Alternative routes for Illinois to Cali
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Other flights to Cali
Explore flights to Cali departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.
Complete your trip
Complete your trip to Cali by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Cali by cabin class
Find flights from Illinois to Cali, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Cali flights
Browse other Illinois and Cali flight options. Last updated on October 20, 2026.
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Top 3 airlines flying from Illinois to Cali
Discover the top 3 airlines that operate flights from Illinois to Cali. 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 7,457,451 searches. Data last updated October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$297 | Average$509 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$375 | Average$568 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$402 | Average$663 | FlexibilityNo cancel fee | On-time71% |