Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Los Angeles from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Los Angeles departing on 1/4. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:45 pm - 3:42 pm
STL
-
SNA
19h 57m1 stop
Multiple Airlines Logo
6:45 am - 8:48 pm
SNA
-
STL
12h 03m1 stop
$155Multiple Airlines
Mon, Feb 2 - Fri, Feb 6
Frontier Logo
10:11 pm - 3:17 pm
STL
-
SNA
19h 06m1 stop
Frontier Logo
12:36 pm - 7:52 pm
SNA
-
STL
5h 16m1 stop
$183Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
2:51 pm - 10:37 am
STL
-
SNA
21h 46m1 stop
Frontier Logo
12:36 pm - 7:52 pm
SNA
-
STL
5h 16m1 stop
$185Frontier
Sat, Feb 21 - Mon, Mar 2
Multiple Airlines Logo
1:40 pm - 12:25 pm
STL
-
SNA
24h 45m2 stops
Multiple Airlines Logo
6:45 am - 8:48 pm
SNA
-
STL
12h 03m1 stop
$204Multiple Airlines
Mon, Feb 2 - Fri, Feb 6
United Airlines Logo
7:48 pm - 10:24 pm
ORD
-
SNA
4h 36mnonstop
United Airlines Logo
2:16 pm - 8:25 pm
SNA
-
ORD
4h 09mnonstop
$269United Airlines
Fri, Jan 16 - Sun, Jan 18
American Airlines Logo
8:09 am - 10:49 am
ORD
-
SNA
4h 40mnonstop
American Airlines Logo
7:45 am - 1:48 pm
SNA
-
ORD
4h 03mnonstop
$271American Airlines
Thu, Feb 12 - Wed, Feb 18
Spirit Airlines Logo
8:43 pm - 8:57 pm
ORD
-
SNA
26h 14m3 stops
Spirit Airlines Logo
4:37 pm - 2:17 pm
SNA
-
ORD
19h 40m2 stops
$273Spirit Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
9:04 am - 11:51 am
ORD
-
SNA
4h 47mnonstop
United Airlines Logo
8:00 am - 5:06 pm
SNA
-
ORD
7h 06m1 stop
$275United Airlines
Sat, Jan 31 - Tue, Feb 3
Spirit Airlines Logo
8:53 pm - 12:25 pm
ORD
-
SNA
17h 32m1 stop
Spirit Airlines Logo
4:37 pm - 3:42 pm
SNA
-
ORD
21h 05m2 stops
$277Spirit Airlines
Mon, Apr 27 - Mon, May 4
American Airlines Logo
3:58 pm - 10:56 pm
MLI
-
SNA
8h 58m1 stop
American Airlines Logo
1:54 pm - 10:23 pm
SNA
-
MLI
6h 29m1 stop
$309American Airlines
Fri, Jan 30 - Mon, Feb 2

Alaska Airlines flights from Illinois to Santa Ana, California

Our best Alaska Airlines deals on Illinois to Santa Ana, California flight tickets
Alaska Airlines
Jan 7
ORD8:00 amChicago O'Hare Intl
10h 12m
1 stop
SNA4:12 pmSanta Ana J. Wayne/Orange Cnty
Jan 12
SNA6:45 amSanta Ana J. Wayne/Orange Cnty
15h 05m
1 stop
ORD11:50 pmChicago O'Hare Intl
$286
Find similar
Alaska Airlines
Jan 8
ORD3:35 pmChicago O'Hare Intl
8h 52m
1 stop
SNA10:27 pmSanta Ana J. Wayne/Orange Cnty
Jan 13
SNA9:13 amSanta Ana J. Wayne/Orange Cnty
12h 37m
2 stops
ORD11:50 pmChicago O'Hare Intl
$291
Find similar
Alaska Airlines
Mar 16
ORD3:54 pmChicago O'Hare Intl
8h 36m
1 stop
SNA10:30 pmSanta Ana J. Wayne/Orange Cnty
Mar 25
SNA6:45 amSanta Ana J. Wayne/Orange Cnty
15h 13m
1 stop
ORD11:58 pmChicago O'Hare Intl
$296
Find similar

Delta flights from Illinois to Santa Ana, California

Our best Delta deals on Illinois to Santa Ana, California flight tickets
Delta
Jan 24
STL6:40 amLambert-St Louis
13h 37m
2 stops
SNA6:17 pmSanta Ana J. Wayne/Orange Cnty
Jan 29
SNA11:15 amSanta Ana J. Wayne/Orange Cnty
10h 10m
2 stops
STL11:25 pmLambert-St Louis
$276
Find similar
Delta
Feb 10
ORD7:30 amChicago O'Hare Intl
11h 04m
1 stop
SNA4:34 pmSanta Ana J. Wayne/Orange Cnty
Feb 19
SNA11:15 amSanta Ana J. Wayne/Orange Cnty
10h 37m
1 stop
ORD11:52 pmChicago O'Hare Intl
$289
Find similar
Delta
Feb 6
ORD2:20 pmChicago O'Hare Intl
9h 58m
1 stop
SNA10:18 pmSanta Ana J. Wayne/Orange Cnty
Feb 8
SNA11:15 amSanta Ana J. Wayne/Orange Cnty
24h 07m
1 stop
ORD1:22 pmChicago O'Hare Intl
$297
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Santa Ana, California 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 16, 2025.
Use the filters below to find and compare flights from Illinois to Santa Ana, California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 2/2

9:45 pm-3:42 pm

1 stop19h 57m

Santa Ana J. Wayne/Orange Cnty

Fri 2/6

6:45 am-8:48 pm

1 stop12h 03m

$155

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 2/26

10:11 pm-3:17 pm

1 stop19h 06m

Santa Ana J. Wayne/Orange Cnty

Mon 3/2

12:36 pm-7:52 pm

1 stop5h 16m

$183

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Sat 2/21

2:51 pm-10:37 am

1 stop21h 46m

Santa Ana J. Wayne/Orange Cnty

Mon 3/2

12:36 pm-7:52 pm

1 stop5h 16m

$185

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 2/2

1:40 pm-12:25 pm

2 stops24h 45m

Santa Ana J. Wayne/Orange Cnty

Fri 2/6

6:45 am-8:48 pm

1 stop12h 03m

$204

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Fri 1/16

7:48 pm-10:24 pm

Nonstop4h 36m

Santa Ana J. Wayne/Orange Cnty

Sun 1/18

2:16 pm-8:25 pm

Nonstop4h 09m

$269

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Thu 2/12

8:09 am-10:49 am

Nonstop4h 40m

Santa Ana J. Wayne/Orange Cnty

Wed 2/18

7:45 am-1:48 pm

Nonstop4h 03m

$271

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Thu 1/8

8:43 pm-8:57 pm

3 stops26h 14m

Santa Ana J. Wayne/Orange Cnty

Sun 1/11

4:37 pm-2:17 pm

2 stops19h 40m

$273

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Sat 1/31

9:04 am-11:51 am

Nonstop4h 47m

Santa Ana J. Wayne/Orange Cnty

Tue 2/3

8:00 am-5:06 pm

1 stop7h 06m

$275

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Mon 4/27

8:53 pm-12:25 pm

1 stop17h 32m

Santa Ana J. Wayne/Orange Cnty

Mon 5/4

4:37 pm-3:42 pm

2 stops21h 05m

$277

MolineSanta Ana

MLI - SNA

MLISNA

Moline Quad-City

Fri 1/30

3:58 pm-10:56 pm

1 stop8h 58m

Santa Ana J. Wayne/Orange Cnty

Mon 2/2

1:54 pm-10:23 pm

1 stop6h 29m

$309

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Illinois to Santa Ana, California

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 Santa Ana, California?

In general, September is the cheapest month to fly from Illinois to Santa Ana, California. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $312. If you aren’t able to travel during the month of September, then book flights to Santa Ana, California from Illinois during July instead. Flights to Santa Ana, California in July, while not as cheap as those in September, still average around $348.

What is the cheapest day to depart on your flight to Santa Ana, California?

The cheapest day to depart from Illinois to Santa Ana, California is on a Saturday. Travelers who choose to depart for Santa Ana, California on a Saturday will often find tickets for as low as $358. The most expensive day to fly to Santa Ana, California is Sunday, with ticket prices averaging around $446.

What is the cheapest time of day to depart on your flight to Santa Ana, California?

In the morning is the cheapest time of day to fly from Illinois to Santa Ana, California when you can find flight prices for as low as $374. Flying to Santa Ana, California in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Santa Ana, California is in the afternoon when prices are around $406.

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

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

How far in advance should I book a flight to Santa Ana, California?

You are more likely to see cheaper flights to Santa Ana, California from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Santa Ana, California for around $376 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santa Ana, California from Illinois for as low as $303 on momondo.

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

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

You could potentially save up to 51% on your flight if you consider stops on a Illinois to Santa Ana, California flight.

Cheap Illinois to Santa Ana, California flight deals and tips

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

Best Price Found

$273

Fastest flight time

4h 15m

Direct flights

Every day

Airports in Santa Ana, California

1 airport
The best one-way flight to Santa Ana, California from Illinois in the past 72 hours is $273. The best round-trip flight deal from Illinois to Santa Ana, California found on momondo in the last 72 hours is $312.
The fastest flight from Illinois to Santa Ana, California takes 4h 15m
Direct flights go from Illinois to Santa Ana, California every day.
There is 1 airport in Santa Ana, California. From Illinois there are direct flights to Santa Ana J. Wayne/Orange Cnty (SNA).
Search flight deals

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Santa Ana J. Wayne/Orange Cnty Airport.

  • What documentation or ID do you need to fly to Santa Ana J. Wayne/Orange Cnty Airport?

    The required travel and health documents for your Santa Ana J. Wayne/Orange Cnty Airport 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 Santa Ana J. Wayne/Orange Cnty Airport. 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 Illinois to Santa Ana, California?

Best airlines flying from Illinois to Santa Ana, California

Compare and see reviews for airlines that fly from Illinois to Santa Ana, California with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $85Free CancellationRating
6.3
8,189 reviews
Search Spirit Airlines flights
FrontierPriceFrom $110Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
American AirlinesPriceFrom $234Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
United AirlinesPriceFrom $269Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
SouthwestPriceFrom $288Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $336Free CancellationRating
8.0
11,469 reviews
Search Alaska Airlines flights

Traveling to a place near Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
Anaheim
Tustin

Why use momondo?

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

It is quick and easy to find Illinois to Santa Ana flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Santa Ana that suits you.

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

Flights from Illinois to Santa Ana 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 Illinois to Santa Ana?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Santa Ana.

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

Yes. momondo can track prices for Illinois to Santa Ana flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Santa Ana, California trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 1/15
Thu 1/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States