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Orange County

$131+ Cheap flights from Illinois to Orange County

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Orange County

Keep the following information in mind while searching for Illinois to Orange County flight deals. Data was last updated June 12, 2025.

Round-trip from

$211
(Mytrip)

One-way from

$131
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$277
From Illinois to Orange County
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One-way flight from Illinois to Orange County
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Highest demand for flights based on searches. 9% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Illinois to Orange County

Cheapest flights from Illinois to Orange County
Explore the most affordable flight options available from Illinois to Orange County. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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.
Wed 7/98:39 pmPIA - SNA
1 stop16h 47mMultiple Airlines
Wed 7/166:45 amSNA - PIA
1 stop11h 04mMultiple Airlines
Deal found 6/11$211
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 9/258:13 amORD - SNA
Nonstop4h 28mAmerican Airlines
Sat 9/277:55 amSNA - ORD
Nonstop4h 10mAmerican Airlines
Deal found 6/12$269
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 6/307:59 pmORD - SNA
Nonstop4h 27mUnited Airlines
Mon 7/76:45 amSNA - ORD
Nonstop4h 21mUnited Airlines
Deal found 6/10$270
This Mytrip deal was found by Cheapflights users on 6/10. 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 6/2610:15 pmORD - SNA
1 stop11h 01mSpirit Airlines
Sun 8/37:58 pmSNA - ORD
2 stops23h 32mSpirit Airlines
Deal found 6/10$271
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:45 pmSTL - SNA
1 stop5h 38mDelta
Wed 9/312:44 pmSNA - STL
1 stop8h 39mDelta
Deal found 6/10$279
This FlightHub deal was found by Cheapflights users on 6/12. 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 9/254:29 pmMDW - SNA
1 stop21h 04mFrontier
Thu 10/212:18 pmSNA - MDW
1 stop8h 20mFrontier
Deal found 6/12$280
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/51:46 pmMDW - SNA
1 stop8h 18mDelta
Wed 8/138:00 amSNA - MDW
1 stop7h 37mDelta
Deal found 6/11$284
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/292:07 pmORD - SNA
1 stop10h 10mHawaiian Airlines
Mon 9/19:15 pmSNA - ORD
1 stop7h 48mHawaiian Airlines
Deal found 6/10$288
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/252:15 pmORD - SNA
1 stop6h 06mDelta
Fri 8/82:20 pmSNA - ORD
1 stop7h 49mDelta
Deal found 6/11$289
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:10 amMDW - SNA
1 stop8h 20mSouthwest
Mon 7/1411:40 amSNA - MDW
1 stop7h 35mSouthwest
Deal found 6/10$289
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amMLI - SNA
1 stop8h 42mDelta
Sat 9/1312:10 pmSNA - MLI
1 stop8h 20mDelta
Deal found 6/10$289
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/106:54 amPIA - SNA
1 stop8h 59mAmerican Airlines
Sat 9/137:55 amSNA - PIA
1 stop7h 50mAmerican Airlines
Deal found 6/12$289

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Orange County 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 June 12, 2025.
Use the filters below to find and compare flights from Illinois to Orange County that are best for you.

Fly from

Illinois

Fly to

Orange County

Route

Depart

Return

Price

PeoriaSanta Ana

PIA - SNA

PIASNA

Greater Peoria

Wed 7/9

8:39 pm-11:26 am

1 stop16h 47m

Santa Ana J. Wayne/Orange Cnty

Wed 7/16

6:45 am-7:49 pm

1 stop11h 04m

$211

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Fri 9/5

7:58 pm-10:30 pm

Nonstop4h 32m

Santa Ana J. Wayne/Orange Cnty

Fri 9/12

1:48 pm-7:59 pm

Nonstop4h 11m

$269

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Thu 6/26

10:15 pm-7:16 am

1 stop11h 01m

Santa Ana J. Wayne/Orange Cnty

Sun 8/3

7:58 pm-9:30 pm

2 stops23h 32m

$271

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Mon 6/16

2:10 pm-7:46 pm

1 stop7h 36m

Santa Ana J. Wayne/Orange Cnty

Mon 7/7

7:40 pm-6:12 am

1 stop8h 32m

$273

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 8/25

6:45 pm-10:23 pm

1 stop5h 38m

Santa Ana J. Wayne/Orange Cnty

Wed 9/3

12:44 pm-11:23 pm

1 stop8h 39m

$279

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Thu 9/25

4:29 pm-11:33 am

1 stop21h 04m

Santa Ana J. Wayne/Orange Cnty

Thu 10/2

12:18 pm-10:38 pm

1 stop8h 20m

$280

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Tue 8/5

1:46 pm-8:04 pm

1 stop8h 18m

Santa Ana J. Wayne/Orange Cnty

Wed 8/13

8:00 am-5:37 pm

1 stop7h 37m

$284

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Fri 8/29

2:07 pm-10:17 pm

1 stop10h 10m

Santa Ana J. Wayne/Orange Cnty

Mon 9/1

9:15 pm-7:03 am

1 stop7h 48m

$288

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Tue 7/8

7:10 am-1:30 pm

1 stop8h 20m

Santa Ana J. Wayne/Orange Cnty

Mon 7/14

11:40 am-9:15 pm

1 stop7h 35m

$289

PeoriaSanta Ana

PIA - SNA

PIASNA

Greater Peoria

Wed 9/10

6:54 am-1:53 pm

1 stop8h 59m

Santa Ana J. Wayne/Orange Cnty

Sat 9/13

7:55 am-5:45 pm

1 stop7h 50m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Orange County

Have a flexible travel schedule? Discover the best time to fly to Orange County from Illinois 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 Illinois to Orange County

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Orange County (average of $298). Flying from Illinois to Orange County in March is currently the most expensive (average of $378). 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 IL to KFI?

Find hourly flight availability from Illinois to Orange County. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Weekly flight availability from Illinois to Orange County

Explore weekly flight availability from Illinois to Orange County. 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 June 12, 2025.

The most flights from USIL to zzKFI are scheduled on a Thursday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Orange County by month

Plan your trip to Orange County by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Orange County ranges from 0.0 - 3.1 inches per month. February is typically the wettest month, when rainfall can reach 3.1 in. July is typically the driest time to visit Orange County when rainfall is around 0.0 in.

Temperature in Orange County by month

Plan your trip to Orange County by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Orange County, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Orange County

Get insights into the airlines that provide service to Orange County. 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 Orange County. Reviews last updated June 12, 2025.
To help decide which airline to fly from Illinois to Orange County, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

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

    The cheapest airlines for a one-way flight from Illinois to Orange County are Spirit Airlines ($131), Frontier ($135), and Alaska Airlines ($139).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Orange County (average of $298). Flying from Illinois to Orange County in March is currently the most expensive (average of $378). 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 Illinois to Orange County

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to Orange County

Discover the top 6 airlines that operate flights from Illinois to Orange County. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$215FlexibilityNo cancel feeOn-time65%
FrontierCheapest$109Average$214FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$228Average$476FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$280Average$458FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$336Average$476FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$387Average$461FlexibilityNo cancel feeOn-time63%

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