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Cheap flights from Orange County to Illinois from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Orange County to Illinois departing on 1/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Orange County to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:55 pm - 2:48 pm
SNA
-
STL
20h 53m1 stop
Multiple Airlines Logo
10:09 pm - 12:25 pm
STL
-
SNA
16h 16m1 stop
$158Multiple Airlines
Tue, Jan 13 - Sun, Jan 18
Multiple Airlines Logo
4:37 pm - 12:40 pm
SNA
-
STL
18h 03m1 stop
Multiple Airlines Logo
10:09 pm - 12:25 pm
STL
-
SNA
16h 16m1 stop
$160Multiple Airlines
Wed, Jan 14 - Sun, Jan 18
United Airlines Logo
2:16 pm - 8:25 pm
SNA
-
ORD
4h 09mnonstop
United Airlines Logo
9:04 am - 11:51 am
ORD
-
SNA
4h 47mnonstop
$269United Airlines
Thu, Jan 22 - Sun, Jan 25
Spirit Airlines Logo
6:45 am - 11:22 am
SNA
-
ORD
26h 37m3 stops
Spirit Airlines Logo
8:43 pm - 8:57 pm
ORD
-
SNA
26h 14m3 stops
$271Spirit Airlines
Fri, Jan 16 - Fri, Jan 23
Spirit Airlines Logo
6:45 am - 2:17 pm
SNA
-
ORD
29h 32m3 stops
Spirit Airlines Logo
7:20 am - 8:57 pm
ORD
-
SNA
39h 37m3 stops
$272Spirit Airlines
Sat, Jan 31 - Sun, Feb 8
United Airlines Logo
2:16 pm - 8:25 pm
SNA
-
ORD
4h 09mnonstop
United Airlines Logo
6:47 am - 12:15 pm
ORD
-
SNA
7h 28m1 stop
$279United Airlines
Sat, Jan 17 - Mon, Jan 19
Southwest Logo
2:30 pm - 10:50 pm
SNA
-
MDW
6h 20m1 stop
Southwest Logo
12:50 pm - 5:40 pm
MDW
-
SNA
6h 50m1 stop
$284Southwest
Fri, Jan 30 - Sun, Feb 1
Southwest Logo
7:30 am - 4:40 pm
SNA
-
MDW
7h 10m1 stop
Southwest Logo
8:20 am - 3:35 pm
MDW
-
SNA
9h 15m1 stop
$289Southwest
Sat, Jan 17 - Sat, Jan 24
American Airlines Logo
3:12 pm - 11:05 pm
SNA
-
PIA
5h 53m1 stop
American Airlines Logo
6:00 am - 10:49 am
PIA
-
SNA
6h 49m1 stop
$309American Airlines
Fri, Feb 20 - Sat, Feb 21
American Airlines Logo
3:15 pm - 11:45 pm
SNA
-
MLI
6h 30m1 stop
American Airlines Logo
3:34 pm - 8:23 pm
MLI
-
SNA
6h 49m1 stop
$309American Airlines
Fri, Feb 20 - Sat, Feb 21

United Airlines flights from Orange County to Illinois

Our best United Airlines deals on Orange County to Illinois flight tickets
United Airlines
Jan 22
SNA2:16 pmSanta Ana J. Wayne/Orange Cnty
4h 09m
ORD8:25 pmChicago O'Hare Intl
Jan 25
ORD9:04 amChicago O'Hare Intl
4h 47m
SNA11:51 amSanta Ana J. Wayne/Orange Cnty
$269
Find similar
United Airlines
Jan 17
SNA2:16 pmSanta Ana J. Wayne/Orange Cnty
4h 09m
ORD8:25 pmChicago O'Hare Intl
Jan 19
ORD6:47 amChicago O'Hare Intl
7h 28m
1 stop
SNA12:15 pmSanta Ana J. Wayne/Orange Cnty
$279
Find similar
United Airlines
Dec 25
SNA10:52 amSanta Ana J. Wayne/Orange Cnty
4h 05m
ORD4:57 pmChicago O'Hare Intl
Dec 25
ORD7:54 pmChicago O'Hare Intl
4h 36m
SNA10:30 pmSanta Ana J. Wayne/Orange Cnty
$300
Find similar

Spirit Airlines flights from Orange County to Illinois

Our best Spirit Airlines deals on Orange County to Illinois flight tickets
Spirit Airlines
Jan 16
SNA6:45 amSanta Ana J. Wayne/Orange Cnty
26h 37m
3 stops
ORD11:22 amChicago O'Hare Intl
Jan 23
ORD8:43 pmChicago O'Hare Intl
26h 14m
3 stops
SNA8:57 pmSanta Ana J. Wayne/Orange Cnty
$271
Find similar
Spirit Airlines
Jan 31
SNA6:45 amSanta Ana J. Wayne/Orange Cnty
29h 32m
3 stops
ORD2:17 pmChicago O'Hare Intl
Feb 8
ORD7:20 amChicago O'Hare Intl
39h 37m
3 stops
SNA8:57 pmSanta Ana J. Wayne/Orange Cnty
$272
Find similar
Spirit Airlines
Jan 12
SNA4:37 pmSanta Ana J. Wayne/Orange Cnty
16h 45m
2 stops
ORD11:22 amChicago O'Hare Intl
Jan 19
ORD8:43 pmChicago O'Hare Intl
26h 14m
3 stops
SNA8:57 pmSanta Ana J. Wayne/Orange Cnty
$276
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Orange County to Illinois 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, momondo users made 832,500 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from Orange County to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 1/13

3:55 pm-2:48 pm

1 stop20h 53m

Lambert-St Louis

Sun 1/18

10:09 pm-12:25 pm

1 stop16h 16m

$158

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 1/14

4:37 pm-12:40 pm

1 stop18h 03m

Lambert-St Louis

Sun 1/18

10:09 pm-12:25 pm

1 stop16h 16m

$160

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Thu 1/22

2:16 pm-8:25 pm

Nonstop4h 09m

Chicago O'Hare Intl

Sun 1/25

9:04 am-11:51 am

Nonstop4h 47m

$269

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Fri 1/16

6:45 am-11:22 am

3 stops26h 37m

Chicago O'Hare Intl

Fri 1/23

8:43 pm-8:57 pm

3 stops26h 14m

$271

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Sat 1/31

6:45 am-2:17 pm

3 stops29h 32m

Chicago O'Hare Intl

Sun 2/8

7:20 am-8:57 pm

3 stops39h 37m

$272

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Sat 1/17

2:16 pm-8:25 pm

Nonstop4h 09m

Chicago O'Hare Intl

Mon 1/19

6:47 am-12:15 pm

1 stop7h 28m

$279

Santa AnaChicago

SNA - MDW

SNAMDW

Santa Ana J. Wayne/Orange Cnty

Fri 1/30

2:30 pm-10:50 pm

1 stop6h 20m

Chicago Midway

Sun 2/1

12:50 pm-5:40 pm

1 stop6h 50m

$284

Santa AnaChicago

SNA - MDW

SNAMDW

Santa Ana J. Wayne/Orange Cnty

Sat 1/17

7:30 am-4:40 pm

1 stop7h 10m

Chicago Midway

Sat 1/24

8:20 am-3:35 pm

1 stop9h 15m

$289

Santa AnaPeoria

SNA - PIA

SNAPIA

Santa Ana J. Wayne/Orange Cnty

Fri 2/20

3:12 pm-11:05 pm

1 stop5h 53m

Greater Peoria

Sat 2/21

6:00 am-10:49 am

1 stop6h 49m

$309

Santa AnaMoline

SNA - MLI

SNAMLI

Santa Ana J. Wayne/Orange Cnty

Fri 2/20

3:15 pm-11:45 pm

1 stop6h 30m

Moline Quad-City

Sat 2/21

3:34 pm-8:23 pm

1 stop6h 49m

$309

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Orange County to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Orange County is in September. Flight prices, which tend to average around $242, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $257.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Orange County to Illinois is on a Wednesday when prices can be found for as low as $407. Flights from Orange County to Illinois on a Sunday will generally be more expensive and average around $548. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Orange County to Illinois during this time can be as low as $332. Flights in the morning are often more expensive with an average ticket price of $456.

What is the cheapest Orange County to Illinois flight route?

Fly from Santa Ana J. Wayne/Orange Cnty to Chicago O'Hare Intl for the best Orange County - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Orange County when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $298 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Orange County for as low as $244 on momondo.

What cabin class options are available on Orange County to Illinois flights?

There are 4 cabin classes available to choose from on Orange County to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Orange County to Illinois flights?

No. A direct flight is the cheapest option for a flight between Orange County to Illinois.

Cheap Orange County to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Orange County to Illinois

Fastest flight time

3h 45m

Direct flights

Every day

Airports in Illinois

98 airports
The fastest flight from Orange County to Illinois takes 3h 45m
Direct flights go from Orange County to Illinois every day.
There are 98 airports in Illinois. From Orange County there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
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  • When did momondo last update prices for flights from Orange County to Illinois?

    Prices for flights from Orange County to Illinois were last updated today.

  • How many operators does momondo search for flights from Orange County to Illinois?

  • How old do you have to be to fly from Orange County to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Orange County to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Orange County to Illinois?

Best airlines flying from Orange County to Illinois

Compare and see reviews for airlines that fly from Orange County to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $103Free CancellationRating
6.3
8,193 reviews
Search Spirit Airlines flights
FrontierPriceFrom $110Free CancellationRating
5.8
3,078 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $190Free CancellationRating
8.0
11,496 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights
American AirlinesPriceFrom $269Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
SouthwestPriceFrom $288Free CancellationRating
8.0
4,254 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Orange County to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Orange County to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Orange County to Illinois with flexible booking policies on momondo?

Flights from Orange County to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Orange County to Illinois?

momondo helps you find the best flight between Orange County and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Orange County to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Orange County are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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