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Orange County

$53+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNA
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
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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 November 14, 2024.

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 November 14, 2024.

This CheapOair deal was found by Cheapflights users on 11/14. 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 12/66:46 pmSTL - SNA
1 stop20h 38mFrontier
Tue 12/102:24 pmSNA - STL
1 stop15h 49mFrontier
Deal found 11/14$178
This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1510:38 amORD - SNA
2 stops23h 33mSpirit Airlines
Wed 12/181:48 pmSNA - ORD
2 stops16h 22mSpirit Airlines
Deal found 11/12$217
This CheapOair deal was found by Cheapflights users on 11/13. 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 12/38:44 amORD - SNA
2 stops25h 27mMultiple Airlines
Sun 12/810:47 amSNA - ORD
1 stop11h 52mMultiple Airlines
Deal found 11/13$222
This Frontier deal was found by Cheapflights users on 11/14. 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.
Tue 12/246:55 amORD - SNA
1 stop6h 49mFrontier
Sun 12/295:29 pmSNA - ORD
1 stop10h 11mFrontier
Deal found 11/14$233
This Frontier deal was found by Cheapflights users on 11/14. 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 12/298:41 pmMDW - SNA
1 stop13h 34mFrontier
Wed 1/19:44 amSNA - MDW
1 stop9h 48mFrontier
Deal found 11/14$233
This American Airlines deal was found by Cheapflights users on 11/13. 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.
Sat 12/148:10 amORD - SNA
Nonstop4h 32mAmerican Airlines
Sat 2/17:45 amSNA - ORD
Nonstop4h 07mAmerican Airlines
Deal found 11/13$263
This American Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 12/136:00 amMLI - SNA
1 stop6h 48mAmerican Airlines
Mon 12/1612:36 pmSNA - MLI
1 stop7h 28mAmerican Airlines
Deal found 11/13$288
This Mytrip deal was found by Cheapflights users on 11/14. 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 12/1212:15 pmSTL - SNA
3 stops21h 56mMultiple Airlines
Mon 12/161:48 pmSNA - STL
2 stops23h 33mMultiple Airlines
Deal found 11/14$291
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 12/64:20 pmORD - SNA
Nonstop4h 36mUnited Airlines
Tue 12/1010:35 amSNA - ORD
Nonstop4h 07mUnited Airlines
Deal found 11/13$298
This FareScan deal was found by Cheapflights users on 11/14. 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 FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/124:26 pmSTL - SNA
2 stops31h 24mSpirit Airlines
Mon 12/166:45 amSNA - STL
2 stops30h 36mSpirit Airlines
Deal found 11/14$312
This Delta deal was found by Cheapflights users on 11/14. 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 12/64:11 pmSTL - SNA
1 stop7h 36mDelta
Tue 12/1011:00 amSNA - STL
2 stops11h 57mDelta
Deal found 11/14$320
This Delta deal was found by Cheapflights users on 11/13. 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 12/93:35 pmORD - SNA
1 stop7h 09mDelta
Tue 12/1010:11 amSNA - ORD
1 stop5h 58mDelta
Deal found 11/13$327

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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 1/15

6:46 pm-9:57 am

1 stop17h 11m

Santa Ana J. Wayne/Orange Cnty

Tue 1/28

2:08 pm-9:16 am

1 stop17h 08m

$109

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Sun 12/15

10:38 am-8:11 am

2 stops23h 33m

Santa Ana J. Wayne/Orange Cnty

Wed 12/18

1:48 pm-8:10 am

2 stops16h 22m

$217

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Wed 1/1

6:00 am-4:16 pm

1 stop12h 16m

Santa Ana J. Wayne/Orange Cnty

Mon 1/6

1:48 pm-5:30 am

1 stop13h 42m

$218

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Tue 12/24

6:55 am-11:44 am

1 stop6h 49m

Santa Ana J. Wayne/Orange Cnty

Sun 12/29

5:29 pm-5:40 am

1 stop10h 11m

$233

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Sun 12/29

8:41 pm-8:15 am

1 stop13h 34m

Santa Ana J. Wayne/Orange Cnty

Wed 1/1

9:44 am-9:32 pm

1 stop9h 48m

$233

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Sat 12/7

5:58 pm-8:32 pm

Nonstop4h 34m

Santa Ana J. Wayne/Orange Cnty

Tue 12/10

11:38 am-5:47 pm

Nonstop4h 09m

$237

ChicagoSanta Ana

MDW - SNA

MDWSNA

Chicago Midway

Tue 1/28

10:57 am-7:43 pm

1 stop10h 46m

Santa Ana J. Wayne/Orange Cnty

Sat 2/1

1:10 pm-10:20 pm

1 stop7h 10m

$256

MolineSanta Ana

MLI - SNA

MLISNA

Moline Quad-City

Fri 12/13

6:00 am-10:48 am

1 stop6h 48m

Santa Ana J. Wayne/Orange Cnty

Mon 12/16

12:36 pm-10:04 pm

1 stop7h 28m

$288

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

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 12/12

12:15 pm-8:11 am

3 stops21h 56m

Santa Ana J. Wayne/Orange Cnty

Mon 12/16

1:48 pm-3:21 pm

2 stops23h 33m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 58 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 $296). Flying from Illinois to Orange County in June is currently the most expensive (average of $395). 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 November 14, 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 November 14, 2024.

The most flights from USIL to zzKFI are scheduled on a Thursday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 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 November 14, 2024.
To help decide which airline to fly from Illinois to Orange County, see what other customers have to say about American Airlines, Spirit Airlines and Southwest. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
5,045 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,439 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,788 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
9,194 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

WestJet
7.3
Good
2,804 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.3

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

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 ($53), Delta ($118), and Spirit Airlines ($126).

  • 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 $296). Flying from Illinois to Orange County in June is currently the most expensive (average of $395). 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 7 airlines flying from Illinois to Orange County

Discover the top 7 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 2,752,363 searches. Data last updated November 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$108Average$226FlexibilityNo cancel feeOn-time65%
FrontierCheapest$119Average$234FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$253Average$510FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$554FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$328Average$568FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$425Average$460FlexibilityNo cancel feeOn-time63%
DeltaCheapest$592Average$897FlexibilityNo cancel feeOn-timeN/A
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