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Orange County

$60+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNA
Dec 29 — Jan 51
Sun 12/29
Sun 1/5
1 adult, Economy
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Cheap flight deals from Illinois to Orange County

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Orange County (zzKFI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 24, 2024.

Round-trip from

$156
(Mytrip)

One-way from

$60
(Mytrip)
From Illinois to Orange County
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One-way flight from Illinois to Orange County
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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 December 24, 2024.

This CheapOair deal was found by Cheapflights users on 12/22. 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.
Tue 12/319:54 pmORD - SNA
1 stop12h 17mSpirit Airlines
Tue 1/71:48 pmSNA - ORD
1 stop13h 42mSpirit Airlines
Deal found 12/22$295
This FlightHub deal was found by Cheapflights users on 12/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/319:54 pmORD - SNA
1 stop12h 17mMultiple Airlines
Wed 1/19:44 amSNA - ORD
1 stop12h 02mMultiple Airlines
Deal found 12/23$352
This FlightHub deal was found by Cheapflights users on 12/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/308:41 pmMDW - SNA
1 stop21h 34mFrontier
Wed 1/19:44 amSNA - MDW
1 stop9h 48mFrontier
Deal found 12/23$370
This Gotogate deal was found by Cheapflights users on 12/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:09 pmSTL - SNA
1 stop20h 51mFrontier
Sat 1/49:35 amSNA - STL
1 stop23h 35mFrontier
Deal found 12/22$434
This Frontier deal was found by Cheapflights users on 12/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/298:34 pmORD - SNA
1 stop13h 41mFrontier
Wed 1/19:44 amSNA - ORD
1 stop12h 02mFrontier
Deal found 12/23$523
This Southwest deal was found by Cheapflights users on 12/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/319:50 amMDW - SNA
1 stop7h 35mSouthwest
Wed 1/811:15 amSNA - MDW
1 stop6h 45mSouthwest
Deal found 12/23$659
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/238:50 amSTL - SNA
1 stop13h 55mUnited Airlines
Wed 1/16:45 amSNA - STL
1 stop7h 02mUnited Airlines
Deal found 12/22$751
This Southwest deal was found by Cheapflights users on 12/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:15 amORD - LGB
1 stop6h 10mSouthwest
Tue 12/313:25 pmLGB - ORD
1 stop5h 40mSouthwest
Deal found 12/23$793
This Southwest deal was found by Cheapflights users on 12/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/253:00 pmMDW - LGB
1 stop6h 30mSouthwest
Tue 12/313:25 pmLGB - MDW
1 stop6h 00mSouthwest
Deal found 12/23$793
This Mytrip deal was found by Cheapflights users on 12/22. 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.
Sun 12/291:00 pmSTL - SNA
3 stops21h 11mMultiple Airlines
Sat 1/46:45 amSNA - STL
3 stops30h 36mMultiple Airlines
Deal found 12/22$816
This Delta deal was found by Cheapflights users on 12/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:00 amMDW - SNA
1 stop7h 47mDelta
Mon 1/68:00 amSNA - MDW
1 stop7h 47mDelta
Deal found 12/23$893
This American Airlines deal was found by Cheapflights users on 12/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/292:17 pmSTL - SNA
1 stop6h 42mAmerican Airlines
Sat 1/410:04 amSNA - STL
2 stops7h 26mAmerican Airlines
Deal found 12/22$897

Find flights from Illinois to Orange County within your budget

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 December 24, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 2/6

8:31 pm-11:39 am

1 stop17h 08m

Santa Ana J. Wayne/Orange Cnty

Tue 2/11

2:08 pm-9:16 am

1 stop17h 08m

$156

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Fri 1/10

1:39 pm-9:44 pm

1 stop10h 05m

Santa Ana J. Wayne/Orange Cnty

Sat 1/18

6:45 am-9:52 pm

1 stop13h 07m

$279

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Tue 1/14

10:57 am-7:43 pm

1 stop10h 46m

Santa Ana J. Wayne/Orange Cnty

Sat 1/18

8:00 am-5:47 pm

1 stop7h 47m

$280

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Wed 1/22

2:07 pm-11:04 am

2 stops22h 57m

Santa Ana J. Wayne/Orange Cnty

Wed 1/29

12:59 pm-4:27 pm

1 stop25h 28m

$283

PeoriaSanta Ana

PIA - SNA

PIASNA

Greater Peoria

Fri 1/31

4:40 pm-10:59 pm

1 stop8h 19m

Santa Ana J. Wayne/Orange Cnty

Sun 2/2

8:55 am-7:58 pm

1 stop9h 03m

$288

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Tue 1/14

8:15 am-1:18 pm

1 stop7h 03m

Santa Ana J. Wayne/Orange Cnty

Sun 1/19

10:47 am-12:17 am

1 stop11h 30m

$288

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Mon 1/13

12:43 pm-9:44 pm

1 stop11h 01m

Santa Ana J. Wayne/Orange Cnty

Sun 1/19

7:45 am-10:22 pm

2 stops12h 37m

$297

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Sun 1/19

5:00 pm-10:11 pm

1 stop7h 11m

Santa Ana J. Wayne/Orange Cnty

Wed 1/22

11:25 am-12:11 am

1 stop10h 46m

$300

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Sat 3/15

2:00 pm-10:30 pm

1 stop10h 30m

Santa Ana J. Wayne/Orange Cnty

Tue 3/18

12:30 pm-12:23 am

1 stop9h 53m

$303

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Tue 1/14

3:48 pm-2:05 pm

3 stops24h 17m

Santa Ana J. Wayne/Orange Cnty

Wed 1/22

3:00 pm-8:10 pm

3 stops27h 10m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

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.

Travel insights for flights from Illinois to Orange County

Get recent, data-driven insights about flights from Illinois to Orange County including ideal travel times, pricing trends, and more.

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 June is currently the most expensive (average of $421). 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 December 24, 2024.

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 December 24, 2024.

The most flights from USIL to zzKFI are scheduled on a Monday (20 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 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 December 24, 2024.
To help decide which airline to fly from Illinois to Orange County, see what other customers have to say about Frontier, Delta and Alaska Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,765 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,765 reviews
Southwest
8.1
Very good
4,765 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,555 reviews
Southwest
8.1
Very good
4,765 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,580 reviews
Southwest
8.1
Very good
4,765 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
9,009 reviews
Southwest
8.1
Very good
4,765 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,765 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

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 Frontier ($60), Alaska Airlines ($147), and Spirit Airlines ($149).

  • 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 June is currently the most expensive (average of $421). 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 December 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$106Average$224FlexibilityNo cancel feeOn-time65%
FrontierCheapest$109Average$217FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$238Average$518FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$553FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$328Average$569FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$430Average$460FlexibilityNo cancel feeOn-time63%
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