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Illinois

Cheap flights from Orange County to Illinois

SNA — ORD
Jun 16 — Jun 231
Tue 6/16
Tue 6/23
1 adult, Economy
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Find flight deals from Orange County to Illinois

Keep the following information in mind while searching for Orange County to Illinois flight deals. Data was last updated May 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Frontier)

One-way from

$131
(Expedia)

Popular in

February

Cheapest in

September

Average price

$337
Provider with most accurate pricing for Los Angeles-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Chicago (CHI) flights.
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From Orange County to Illinois
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One-way flight from Orange County to Illinois
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Highest demand for flights based on searches. 13% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in May 2026
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Cheapflights Insights

Everything you need to know about your flight from Orange County to Illinois

How far ahead should I book a flight from Orange County to Illinois?

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Orange County to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Orange County to Illinois?

Currently, March is the cheapest month in which you can book a flight from Orange County to Illinois (average of $72). Flying from Orange County to Illinois in June is currently the most expensive (average of $718). 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 KFI to IL?

Find hourly flight availability from Orange County 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 17, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Orange County to Illinois as you normally would.

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 17, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andUnited Airlines from Orange County to Illinois. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,292 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,292 reviews
Southwest
8.0
Very good
4,292 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Alaska Airlines
7.9
Good
12,378 reviews
Southwest
8.0
Very good
4,292 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,730 reviews
Southwest
8.0
Very good
4,292 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.1
Good
11,655 reviews
Southwest
8.0
Very good
4,292 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Spirit Airlines
6.2
Okay
8,623 reviews
Southwest
8.0
Very good
4,292 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Orange County to Illinois. 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 Orange County to Illinois?

    Southwest, Alaska Airlines, and Delta can get you from Orange County to Illinois in just under 3h 55m. Your travel time can differ by up to 5h 09m. The distance from Orange County to Illinois is about 1737 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Orange County to Illinois one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $55. Spirit Airlines flights start at $68 while deals on Delta start at $129 one-way.

  • Can I find deals for flights from Orange County to Illinois that include hotel bookings?

    Yes. In addition to deals on Orange County to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Orange County to Illinois?

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

  • Can I find deals for business class flights from Orange County to Illinois?

    Yes. Cheapflights offers flight deals from Orange County to Illinois 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 Orange County to Illinois?

    Currently, March is the cheapest month in which you can book a flight from Orange County to Illinois (average of $72). Flying from Orange County to Illinois in June is currently the most expensive (average of $718). 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

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Alternative routes for Orange County to Illinois

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Top 7 airlines flying from Orange County to Illinois

Discover the top 7 airlines that operate flights from Orange County 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 2,558,603 searches. Data last updated May 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$195FlexibilityNo cancel feeOn-time65%
FrontierCheapest$152Average$232FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$190Average$468FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$258Average$411FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$269Average$502FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$468FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$288Average$447FlexibilityNo cancel feeOn-time63%

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