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$87+ Cheap flights from Irvine, CA to Chicago (CHI)

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — CHI
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Chicago are usually found in September or February, booked 56 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Find flight deals from Irvine to Chicago

Cheapest flights from Irvine to Chicago
Explore the most affordable flight options available from Irvine to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Frontier deal was found by Cheapflights users on 10/22. 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 10/314:42 pmLAX - ORD
Nonstop4h 18mFrontier
Sun 11/25:30 amORD - LAX
Nonstop4h 26mFrontier
Deal found 10/22$162
This Orbitz deal was found by Cheapflights users on 10/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:59 amLAX - ORD
1 stop11h 52mMultiple Airlines
Thu 11/135:11 amORD - LAX
1 stop9h 17mMultiple Airlines
Deal found 10/21$163
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/236:52 pmLAX - ORD
Nonstop4h 07mMultiple Airlines
Tue 12/24:58 pmORD - LAX
1 stop6h 01mMultiple Airlines
Deal found 10/22$164
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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.
Tue 11/412:59 amLAX - ORD
1 stop11h 52mSpirit Airlines
Thu 11/62:31 pmORD - LAX
1 stop12h 12mSpirit Airlines
Deal found 10/22$165
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/64:42 pmLAX - ORD
Nonstop4h 18mFrontier
Sun 11/96:30 amORD - LAX
Nonstop4h 26mFrontier
Deal found 10/22$166
This CheapOair deal was found by Cheapflights users on 10/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:42 pmLAX - ORD
Nonstop4h 18mFrontier
Wed 11/126:05 pmORD - LAX
1 stop8h 20mFrontier
Deal found 10/22$167
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 10/3111:15 amLAX - ORD
1 stop11h 48mSpirit Airlines
Tue 11/49:22 pmORD - LAX
Nonstop4h 37mSpirit Airlines
Deal found 10/22$168
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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.
Wed 11/1912:19 amLAX - ORD
Nonstop4h 06mSpirit Airlines
Sun 11/234:51 pmORD - LAX
1 stop9h 49mSpirit Airlines
Deal found 10/22$169
This CheapOair deal was found by Cheapflights users on 10/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:25 pmLAX - MDW
1 stop20h 12mFrontier
Mon 11/108:30 amMDW - LAX
1 stop11h 14mFrontier
Deal found 10/22$170
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:42 pmLAX - ORD
1 stop10h 01mFrontier
Sat 11/86:00 amORD - LAX
1 stop8h 28mFrontier
Deal found 10/21$170
This Gotogate deal was found by Cheapflights users on 10/21. 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.
Mon 12/810:39 pmLAX - MDW
1 stop8h 07mFrontier
Mon 12/156:15 amMDW - LAX
1 stop8h 32mFrontier
Deal found 10/21$171
This CheapOair deal was found by Cheapflights users on 10/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/84:42 pmLAX - ORD
Nonstop4h 18mFrontier
Mon 11/248:10 amORD - LAX
Nonstop4h 38mFrontier
Deal found 10/23$171

Cheap flight deals from Irvine to Chicago

Keep the following information in mind while searching for Irvine to Chicago flight deals. Data was last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$162
(Kiwi.com)

One-way from

$87
(Flightnetwork)

Popular in

December

Cheapest in

September

Average price

$300
Provider with most accurate pricing for Los Angeles-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Chicago (CHI) flights.
Search Deals
From Irvine to Chicago (CHI)
Search Deals
One-way flight from Irvine to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine to Chicago 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 October 23, 2025.
Use the filters below to find and compare flights from Irvine to Chicago that are best for you.

Fly from

Irvine

Fly to

Chicago

Route

Depart

Return

Price

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Wed 1/21

12:30 am-6:30 am

Nonstop4h 00m

Chicago O'Hare Intl

Sun 1/25

10:41 am-1:30 pm

Nonstop4h 49m

$167

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Wed 11/5

2:48 pm-11:30 am

1 stop18h 42m

Chicago Midway

Sat 11/8

6:15 am-12:28 pm

1 stop8h 13m

$170

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Mon 12/8

11:00 pm-5:00 am

Nonstop4h 00m

Chicago Midway

Wed 12/10

8:10 am-10:45 am

Nonstop4h 35m

$173

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Fri 12/5

9:59 pm-9:41 am

1 stop9h 42m

Chicago Midway

Mon 12/8

5:29 pm-12:54 am

1 stop9h 25m

$217

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Mon 11/17

10:30 pm-8:54 am

1 stop8h 24m

Chicago Midway

Tue 11/18

7:02 pm-11:41 pm

1 stop6h 39m

$217

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Tue 11/11

9:51 am-6:08 pm

1 stop6h 17m

Chicago Midway

Mon 11/17

5:34 pm-11:21 pm

1 stop7h 47m

$217

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sun 12/14

10:59 pm-8:39 am

1 stop7h 40m

Chicago O'Hare Intl

Wed 12/31

5:30 pm-12:45 am

1 stop9h 15m

$217

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Mon 3/2

11:45 pm-8:47 am

1 stop7h 02m

Chicago O'Hare Intl

Tue 3/3

1:35 pm-8:03 pm

1 stop8h 28m

$217

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Wed 1/7

10:55 pm-8:39 am

1 stop7h 44m

Chicago O'Hare Intl

Thu 1/8

6:05 pm-12:01 am

1 stop7h 56m

$217

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Mon 12/15

11:40 am-11:59 pm

1 stop10h 19m

Chicago O'Hare Intl

Wed 12/31

5:30 pm-12:45 am

1 stop9h 15m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 60 results
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Best time to book a flight from Irvine to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

How far ahead should I book a flight from Irvine to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Chicago. Price data was last updated on October 17, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to Chicago, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Irvine to Chicago?

Currently, March is the cheapest month in which you can book a flight from Irvine to Chicago (average of $77). Flying from Irvine to Chicago in July is currently the most expensive (average of $138). 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 CHI?

Find hourly flight availability from Irvine to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 28% on flights from Irvine to Chicago by exploring options for tickets in the evening.

What is the cheapest day to fly from Irvine to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Chicago. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Irvine to Chicago flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Irvine to Chicago

Explore weekly flight availability from Irvine to Chicago. 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 October 23, 2025.

The most flights from IR9 to CHI are scheduled on a Monday (108 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 on average).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated October 23, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Irvine to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,237 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,237 reviews
Southwest
8.0
Very good
4,237 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,990 reviews
Southwest
8.0
Very good
4,237 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,028 reviews
Southwest
8.0
Very good
4,237 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,098 reviews
Southwest
8.0
Very good
4,237 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,129 reviews
Southwest
8.0
Very good
4,237 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Irvine to Chicago?

    Departing from Irvine to Chicago will take you 4h. Irvine and Chicago are separated by a distance of 1740 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Irvine to Chicago one-way?

    The cheapest airlines for a one-way flight from Irvine to Chicago are Southwest ($90), United Airlines ($92), and Spirit Airlines ($103).

  • What are the most popular routes from Irvine to Chicago?

    Most travelers choose Los Angeles - Chicago O'Hare Intl, Los Angeles - Chicago Midway or Los Angeles - Chicago Greater Rockford when deciding on the best route from Irvine to Chicago.

  • What are the most reliable airlines from Irvine to Chicago?

    Before booking your flight to Chicago from Irvine, check out the most reliable airlines to get you to your destination on time: ITA Airways (100%), Air China (92%), Austrian Airlines( 89%).

  • What are the cheapest flights from Irvine to Chicago?

    The cheapest flight price from Irvine to Chicago is $87. On average you can expect to pay $823. The most popular route, (Los Angeles - Chicago O'Hare Intl), can usually be booked for $91.

  • Can I find deals for flights from Irvine to Chicago that include hotel bookings?

    Yes. In addition to deals on Irvine to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Chicago.

  • Can I find deals for business class flights from Irvine to Chicago?

    Yes. Cheapflights offers flight deals from Irvine to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Chicago?

    Currently, March is the cheapest month in which you can book a flight from Irvine to Chicago (average of $77). Flying from Irvine to Chicago in July is currently the most expensive (average of $138). 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.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Porter
Benton Harbor

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Alternative routes for Irvine to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Irvine to Chicago

Discover the top 8 airlines that operate flights from Irvine to Chicago. 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$96Average$223FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$104Average$203FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$130Average$330FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$179Average$418FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$182Average$406FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$190Average$442FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$200Average$398FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$396FlexibilityNo cancel feeOn-timeN/A

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