$81+ Cheap flights from Irvine, CA to O'Hare Intl (ORD)
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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
Aug 25 — Sep 11
1 adult, Economy
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Find cheap flights from Irvine to O'Hare Intl 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.Cheapflights Tip: The best prices from Irvine to Chicago O'Hare Intl are usually found in February or September, booked 30 days in advance, depart on a Wednesday or Thursday and return on a Friday
Cheap flight deals from Irvine to O'Hare Intl
Keep the following information in mind while searching for Irvine to O'Hare Intl flight deals. Data was last updated August 20, 2025.
Round-trip from | $145 (Cheapflightsfares) |
|---|---|
One-way from | $81 (Cheapflightsfares) |
Popular in | December |
Cheapest in | February |
Average price | $305 |
Find flight deals from Irvine to O'Hare Intl
Cheapest flights from Irvine to O'Hare IntlExplore the most affordable flight options available from Irvine to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.
Explore the most affordable flight options available from Irvine to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.
This Priceline deal was found by Cheapflights users on 8/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:21 pmLAX - ORD
Nonstop4h 22mFrontier
Wed 9/177:20 amORD - LAX
1 stop7h 32mFrontier
Deal found 8/19![Frontier logo]()
$146
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:45 pmLAX - ORD
1 stop6h 55mFrontier
Mon 9/296:30 amORD - LAX
Nonstop4h 29mFrontier
Deal found 8/19![Frontier logo]()
$147
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:39 pmLAX - ORD
Nonstop4h 01mMultiple Airlines
Thu 9/410:42 amORD - LAX
1 stop8h 36mMultiple Airlines
Deal found 8/19![Multiple Airlines logo]()
$148
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:43 pmLAX - ORD
1 stop9h 18mMultiple Airlines
Tue 9/97:09 pmORD - LAX
Nonstop4h 31mMultiple Airlines
Deal found 8/19![Multiple Airlines logo]()
$149
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:20 amLAX - ORD
1 stop12h 08mFrontier
Sat 9/277:00 amORD - LAX
Nonstop4h 29mFrontier
Deal found 8/19![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/912:45 amLAX - ORD
1 stop7h 55mMultiple Airlines
Wed 9/1711:15 amORD - LAX
1 stop9h 40mMultiple Airlines
Deal found 8/19![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sat 9/1311:10 pmLAX - ORD
1 stop9h 32mMultiple Airlines
Thu 9/186:30 amORD - LAX
Nonstop4h 29mMultiple Airlines
Deal found 8/19![Multiple Airlines logo]()
$152
This Frontier deal was found by Cheapflights users on 8/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:15 pmLAX - ORD
1 stop8h 29mFrontier
Sat 10/117:25 amORD - LAX
Nonstop4h 26mFrontier
Deal found 8/18![Frontier logo]()
$153
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:39 pmLAX - ORD
Nonstop4h 18mFrontier
Mon 11/36:30 amORD - LAX
Nonstop4h 26mFrontier
Deal found 8/18![Frontier logo]()
$154
This Gotogate deal was found by Cheapflights users on 8/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:45 amLAX - ORD
1 stop12h 43mFrontier
Mon 9/1510:42 amORD - LAX
1 stop28h 10mFrontier
Deal found 8/19![Frontier logo]()
$155
This Gotogate deal was found by Cheapflights users on 8/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:45 amLAX - ORD
1 stop12h 43mFrontier
Sat 9/208:25 amORD - LAX
1 stop11h 05mFrontier
Deal found 8/18![Frontier logo]()
$156
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:21 pmLAX - ORD
Nonstop4h 22mMultiple Airlines
Sat 9/67:09 pmORD - LAX
Nonstop4h 31mMultiple Airlines
Deal found 8/18![Multiple Airlines logo]()
$157
Cheapflights Fare Finder
Customize your flight search to find flights from Irvine to O'Hare Intl 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 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Irvine to Chicago O'Hare Intl Airport that are best for you.
Fly from
Irvine
Fly to
O'Hare Intl
Route
Depart
Return
Price
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Mon 9/8
11:10 pm-1:09 pm
1 stop11h 59m
Chicago O'Hare Intl
Sun 9/14
12:54 pm-3:24 pm
Nonstop4h 30m
$150
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Wed 10/29
6:44 am-12:12 am
1 stop15h 28m
Chicago O'Hare Intl
Sun 11/2
5:30 am-7:56 am
Nonstop4h 26m
$150
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Thu 9/25
5:50 am-11:59 am
Nonstop4h 09m
Chicago O'Hare Intl
Sun 9/28
6:30 am-8:59 am
Nonstop4h 29m
$155
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Fri 9/5
2:03 pm-11:59 pm
1 stop7h 56m
Chicago O'Hare Intl
Mon 9/8
6:00 am-8:08 pm
1 stop16h 08m
$155
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Sat 10/4
12:05 pm-6:14 pm
Nonstop4h 09m
Chicago O'Hare Intl
Wed 10/8
1:26 pm-11:38 pm
1 stop12h 12m
$160
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Fri 9/5
5:50 am-11:59 am
Nonstop4h 09m
Chicago O'Hare Intl
Mon 9/8
7:09 pm-9:40 pm
Nonstop4h 31m
$161
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Thu 10/23
5:41 pm-11:59 pm
Nonstop4h 18m
Chicago O'Hare Intl
Sun 10/26
7:25 am-9:51 am
Nonstop4h 26m
$163
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Sat 10/4
12:05 pm-6:14 pm
Nonstop4h 09m
Chicago O'Hare Intl
Sat 10/11
7:25 am-9:51 am
Nonstop4h 26m
$170
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Wed 10/8
1:15 pm-11:53 pm
1 stop8h 38m
Chicago O'Hare Intl
Sat 10/11
12:05 pm-6:00 pm
1 stop7h 55m
$170
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Thu 9/18
1:45 pm-10:40 pm
1 stop6h 55m
Chicago O'Hare Intl
Sat 9/20
8:25 am-5:30 pm
1 stop11h 05m
$172
Showing 1-10 of 20 results
Best time to book a flight from Irvine to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Irvine with our price prediction graph.
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 Irvine to Chicago O'Hare Intl Airport
How far ahead should I book a flight from Irvine to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Irvine to O'Hare Intl. Price data was last updated on August 8, 2025.
The best time to book flights from Irvine to Chicago O'Hare Intl Airport is 30 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.
What is the cheapest month to book a flight from Irvine to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Irvine to Chicago O'Hare Intl Airport (average of $245). Flying from Irvine to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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.
What is the cheapest time of day to fly from IR9 to ORD?
Find hourly flight availability from Irvine to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.
When flying from Irvine to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What is the cheapest day to fly from Irvine to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Irvine to O'Hare Intl. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Irvine to Chicago O'Hare Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Irvine to Chicago O'Hare Intl Airport
Explore weekly flight availability from Irvine to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 20, 2025.
The most flights from IR9 to ORD are scheduled on a Tuesday (110 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (77 on average).
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated August 20, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Irvine to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.9
Food
7.3
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
8.0
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.9
Food
7.3
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
8.0
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.9
Food
7.3
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
8.0
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.9
Food
7.3
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
8.0
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.9
Food
7.3
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
8.0
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.9
Food
7.3
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Related info for your journey
Find useful and relevant information for your journey from Irvine to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsSchaumburg
Rosemont
Hoffman Estates
Beloit
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Naperville
Merrillville
Elk Grove Village
Downers Grove
Evanston
Lake Geneva
Joliet
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Irvine to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Irvine to O'Hare Intl
Discover the top 8 airlines that operate flights from Irvine to O'Hare Intl. 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 2,558,603 searches. Data last updated August 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$183 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$105 | Average$197 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$330 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$157 | Average$419 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$185 | Average$402 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$190 | Average$419 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$213 | Average$419 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$218 | Average$391 | FlexibilityNo cancel fee | On-timeN/A |