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Cheap flights from Santa Ana, California to Illinois from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Ana, California to Illinois departing on 5/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Santa Ana, California to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:14 pm - 8:23 pm
SNA
-
STL
22h 09m
1 stop
Frontier Logo
12:36 pm - 12:19 pm
STL
-
SNA
25h 43m
1 stop
$160Frontier
Thu, May 7 - Sun, May 10
Multiple Airlines Logo
4:33 pm - 7:23 pm
SNA
-
STL
24h 50m
2 stops
Multiple Airlines Logo
8:08 pm - 9:09 am
STL
-
SNA
15h 01m
1 stop
$233Multiple Airlines
Wed, May 20 - Wed, Jun 3
Multiple Airlines Logo
7:45 am - 6:06 pm
SNA
-
STL
8h 21m
1 stop
Multiple Airlines Logo
8:08 pm - 9:09 am
STL
-
SNA
15h 01m
1 stop
$240Multiple Airlines
Wed, May 20 - Wed, Jun 3
American Airlines Logo
3:12 pm - 9:29 pm
SNA
-
ORD
4h 17mnonstop
American Airlines Logo
10:16 am - 3:34 pm
ORD
-
SNA
7h 18m
1 stop
$320American Airlines
Wed, May 20 - Sat, Jun 6
United Airlines Logo
2:35 pm - 8:41 pm
SNA
-
ORD
4h 06mnonstop
United Airlines Logo
5:00 am - 9:07 am
ORD
-
SNA
6h 07m
1 stop
$323United Airlines
Sat, May 16 - Sat, May 23
United Airlines Logo
4:00 pm - 12:44 am
SNA
-
ORD
6h 44m
1 stop
United Airlines Logo
5:00 am - 9:07 am
ORD
-
SNA
6h 07m
1 stop
$324United Airlines
Fri, May 29 - Wed, Jun 3
Southwest Logo
7:40 pm - 5:25 am
SNA
-
MDW
7h 45m
1 stop
Southwest Logo
10:10 am - 5:00 pm
MDW
-
SNA
8h 50m
2 stops
$328Southwest
Wed, May 6 - Wed, May 13
Alaska Airlines Logo
7:09 am - 11:41 pm
SNA
-
ORD
14h 32m
1 stop
Alaska Airlines Logo
1:03 pm - 8:02 pm
ORD
-
SNA
8h 59m
1 stop
$329Alaska Airlines
Wed, Sep 9 - Mon, Sep 14
Southwest Logo
5:00 pm - 1:25 am
SNA
-
MDW
6h 25m
1 stop
Southwest Logo
11:45 am - 4:45 pm
MDW
-
SNA
7h 00m
2 stops
$334Southwest
Thu, Jun 11 - Tue, Jun 16
American Airlines Logo
6:45 am - 3:50 pm
SNA
-
PIA
7h 05m
1 stop
American Airlines Logo
6:13 am - 12:05 pm
PIA
-
SNA
7h 52m
1 stop
$369American Airlines
Tue, Jul 21 - Wed, Jul 29

Spirit Airlines flights from Santa Ana, California to Illinois

Our best Spirit Airlines deals on Santa Ana, California to Illinois flight tickets
Spirit Airlines
May 12
SNA4:33 pmSanta Ana J. Wayne/Orange Cnty
15h 21m
2 stops
ORD9:54 amChicago O'Hare Intl
May 15
ORD8:59 pmChicago O'Hare Intl
20h 39m
2 stops
SNA3:38 pmSanta Ana J. Wayne/Orange Cnty
$321
Spirit Airlines
May 4
SNA4:33 pmSanta Ana J. Wayne/Orange Cnty
20h 30m
2 stops
ORD3:03 pmChicago O'Hare Intl
May 8
ORD8:59 pmChicago O'Hare Intl
20h 39m
2 stops
SNA3:38 pmSanta Ana J. Wayne/Orange Cnty
$331
Spirit Airlines
May 4
SNA4:33 pmSanta Ana J. Wayne/Orange Cnty
20h 30m
2 stops
ORD3:03 pmChicago O'Hare Intl
May 8
ORD8:59 pmChicago O'Hare Intl
20h 39m
2 stops
SNA3:38 pmSanta Ana J. Wayne/Orange Cnty
$332

American Airlines flights from Santa Ana, California to Illinois

Our best American Airlines deals on Santa Ana, California to Illinois flight tickets
American Airlines
May 20
SNA3:12 pmSanta Ana J. Wayne/Orange Cnty
4h 17m
ORD9:29 pmChicago O'Hare Intl
Jun 6
ORD10:16 amChicago O'Hare Intl
7h 18m
1 stop
SNA3:34 pmSanta Ana J. Wayne/Orange Cnty
$320
American Airlines
May 18
SNA3:12 pmSanta Ana J. Wayne/Orange Cnty
4h 17m
ORD9:29 pmChicago O'Hare Intl
May 26
ORD5:04 pmChicago O'Hare Intl
4h 27m
SNA7:31 pmSanta Ana J. Wayne/Orange Cnty
$330
American Airlines
Jul 11
SNA1:23 pmSanta Ana J. Wayne/Orange Cnty
7h 03m
1 stop
ORD10:26 pmChicago O'Hare Intl
Aug 15
ORD7:25 amChicago O'Hare Intl
4h 23m
SNA9:48 amSanta Ana J. Wayne/Orange Cnty
$340

momondo Fare Finder

 
Customize your flight search to find flights from Santa Ana, California 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 April 18, 2026.
Use the filters below to find and compare flights from Santa Ana, California to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 5/7

8:14 pm-8:23 pm

1 stop22h 09m

Lambert-St Louis

Sun 5/10

12:36 pm-12:19 pm

1 stop25h 43m

$160

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 5/20

4:33 pm-7:23 pm

2 stops24h 50m

Lambert-St Louis

Wed 6/3

8:08 pm-9:09 am

1 stop15h 01m

$233

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 5/20

7:45 am-6:06 pm

1 stop8h 21m

Lambert-St Louis

Wed 6/3

8:08 pm-9:09 am

1 stop15h 01m

$240

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Wed 5/20

3:12 pm-9:29 pm

Nonstop4h 17m

Chicago O'Hare Intl

Sat 6/6

10:16 am-3:34 pm

1 stop7h 18m

$320
Quickest round-trip

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Sat 5/16

2:35 pm-8:41 pm

Nonstop4h 06m

Chicago O'Hare Intl

Sat 5/23

5:00 am-9:07 am

1 stop6h 07m

$323

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Fri 5/29

4:00 pm-12:44 am

1 stop6h 44m

Chicago O'Hare Intl

Wed 6/3

5:00 am-9:07 am

1 stop6h 07m

$324

Santa AnaChicago

SNA - MDW

SNAMDW

Santa Ana J. Wayne/Orange Cnty

Wed 5/6

7:40 pm-5:25 am

1 stop7h 45m

Chicago Midway

Wed 5/13

10:10 am-5:00 pm

2 stops8h 50m

$328

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Wed 9/9

7:09 am-11:41 pm

1 stop14h 32m

Chicago O'Hare Intl

Mon 9/14

1:03 pm-8:02 pm

1 stop8h 59m

$329

Santa AnaChicago

SNA - MDW

SNAMDW

Santa Ana J. Wayne/Orange Cnty

Thu 6/11

5:00 pm-1:25 am

1 stop6h 25m

Chicago Midway

Tue 6/16

11:45 am-4:45 pm

2 stops7h 00m

$334

Santa AnaPeoria

SNA - PIA

SNAPIA

Santa Ana J. Wayne/Orange Cnty

Tue 7/21

6:45 am-3:50 pm

1 stop7h 05m

Greater Peoria

Wed 7/29

6:13 am-12:05 pm

1 stop7h 52m

$369

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 Santa Ana, California 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 Santa Ana, California is in August. Flight prices, which tend to average around $348, 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 August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $349.

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

The cheapest day to depart from Santa Ana, California to Illinois is on a Wednesday when prices can be found for as low as $413. Flights from Santa Ana, California to Illinois on a Sunday will generally be more expensive and average around $601. 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 afternoon. Flights from Santa Ana, California to Illinois during this time can be as low as $393. Flights in the morning are often more expensive with an average ticket price of $464.

What is the cheapest Santa Ana J. Wayne/Orange Cnty to Illinois flight route?

Fly from Santa Ana J. Wayne/Orange Cnty to Chicago O'Hare Intl for the best Santa Ana J. Wayne/Orange Cnty - 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 Santa Ana, California when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $410 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Santa Ana, California for as low as $349 on momondo.

What cabin class options are available on Santa Ana J. Wayne/Orange Cnty to Illinois flights?

There are 4 cabin classes available to choose from on Santa Ana J. Wayne/Orange Cnty 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 Santa Ana, California to Illinois flights?

You could potentially save up to 16% on your flight if you consider stops on a Santa Ana, California to Illinois flight.

Cheap Santa Ana, California to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Santa Ana, California to Illinois

Best Price Found

$312

Fastest flight time

4h 01m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Santa Ana, California in the past 72 hours is $312. The best round-trip flight deal from Santa Ana, California to Illinois found on momondo in the last 72 hours is $444.
The fastest flight from Santa Ana, California to Illinois takes 4h 01m
Direct flights go from Santa Ana, California to Illinois every day.
There are 98 airports in Illinois. From Santa Ana, California there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

Frequently asked questions about flying from Santa Ana, California to Illinois

  • When did momondo last update prices for flights from Santa Ana J. Wayne/Orange Cnty Airport to Illinois?

    Prices for flights from Santa Ana J. Wayne/Orange Cnty Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Santa Ana J. Wayne/Orange Cnty Airport to Illinois?

  • How old do you have to be to fly from Santa Ana J. Wayne/Orange Cnty Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Santa Ana J. Wayne/Orange Cnty Airport to Illinois.

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

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Santa Ana, California to Illinois?

Best airlines flying from Santa Ana, California to Illinois

Compare and see reviews for airlines that fly from Santa Ana, California to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $103Free CancellationRating
6.3
8,625 reviews
Search Spirit Airlines flights
FrontierPriceFrom $152Free CancellationRating
5.7
2,987 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $190Free CancellationRating
7.9
12,260 reviews
Search Alaska Airlines flights
JetBluePriceFrom $258Free CancellationRating
7.2
2,946 reviews
Search JetBlue flights
American AirlinesPriceFrom $269Free CancellationRating
7.1
11,617 reviews
Search American Airlines flights
United AirlinesPriceFrom $269Free CancellationRating
7.4
9,605 reviews
Search United Airlines flights
SouthwestPriceFrom $288Free CancellationRating
8.0
4,329 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Santa Ana to Illinois?

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

Can I find flights from Santa Ana to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Santa Ana with this policy.

How can momondo help me find flights from Santa Ana to Illinois?

Once all potential Santa Ana to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Santa Ana and alert you when they change.

An easier way to manage your Illinois trip

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