Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Los Angeles from $100

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 3/6. 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
12:14 pm - 8:57 pm
STL
-
SNA
10h 43m
1 stop
Multiple Airlines Logo
4:37 pm - 7:11 pm
SNA
-
STL
24h 34m
1 stop
$193Multiple Airlines
月, 3月 9 - 水, 3月 11
Multiple Airlines Logo
8:12 pm - 11:07 am
STL
-
SNA
16h 55m
1 stop
Multiple Airlines Logo
2:53 pm - 11:19 am
SNA
-
STL
18h 26m
1 stop
$202Multiple Airlines
水, 3月 18 - 月, 3月 30
Multiple Airlines Logo
2:51 pm - 10:37 am
STL
-
SNA
21h 46m
1 stop
Multiple Airlines Logo
6:45 am - 5:46 pm
SNA
-
STL
9h 01m
1 stop
$204Multiple Airlines
土, 2月 21 - 土, 2月 28
Frontier Logo
10:11 pm - 12:42 pm
STL
-
SNA
16h 31m
1 stop
Frontier Logo
1:12 pm - 7:11 pm
SNA
-
STL
27h 59m
1 stop
$211Frontier
木, 3月 5 - 月, 3月 9
Frontier Logo
8:12 pm - 11:07 am
STL
-
SNA
16h 55m
1 stop
Frontier Logo
1:12 pm - 11:19 am
SNA
-
STL
20h 07m
1 stop
$225Frontier
水, 3月 18 - 月, 3月 30
Alaska Airlines Logo
7:00 am - 4:26 pm
STL
-
SNA
11h 26m
1 stop
Alaska Airlines Logo
3:01 pm - 1:51 pm
SNA
-
STL
20h 50m
1 stop
$237Alaska Airlines
火, 3月 3 - 火, 3月 10
United Airlines Logo
7:47 pm - 10:30 pm
ORD
-
SNA
4h 43mnonstop
United Airlines Logo
2:20 pm - 8:26 pm
SNA
-
ORD
4h 06mnonstop
$269United Airlines
金, 5月 1 - 月, 5月 4
American Airlines Logo
6:54 pm - 9:39 pm
ORD
-
SNA
4h 45mnonstop
American Airlines Logo
3:23 pm - 9:35 pm
SNA
-
ORD
4h 12mnonstop
$270American Airlines
土, 2月 28 - 土, 3月 7
American Airlines Logo
12:04 pm - 10:05 pm
MLI
-
SNA
12h 01m
2 stops
American Airlines Logo
3:12 pm - 11:54 pm
SNA
-
MLI
6h 42m
1 stop
$314American Airlines
土, 4月 18 - 木, 4月 23
United Airlines Logo
8:15 am - 3:10 pm
MLI
-
SNA
8h 55m
2 stops
United Airlines Logo
8:49 am - 10:22 pm
SNA
-
MLI
11h 33m
2 stops
$377United Airlines
火, 3月 3 - 火, 3月 10

United Airlines flights from Illinois to Santa Ana, California

Our best United Airlines deals on Illinois to Santa Ana, California flight tickets
United Airlines
Mar 31
STL8:54 amLambert-St Louis
8h 09m
1 stop
SNA3:03 pmSanta Ana J. Wayne/Orange Cnty
Apr 18
SNA11:10 amSanta Ana J. Wayne/Orange Cnty
7h 58m
2 stops
STL9:08 pmLambert-St Louis
$262
United Airlines
May 1
ORD7:47 pmChicago O'Hare Intl
4h 43m
SNA10:30 pmSanta Ana J. Wayne/Orange Cnty
May 4
SNA2:20 pmSanta Ana J. Wayne/Orange Cnty
4h 06m
ORD8:26 pmChicago O'Hare Intl
$269
United Airlines
Mar 7
ORD2:26 pmChicago O'Hare Intl
8h 24m
1 stop
SNA8:50 pmSanta Ana J. Wayne/Orange Cnty
Mar 17
SNA10:52 amSanta Ana J. Wayne/Orange Cnty
4h 03m
ORD4:55 pmChicago O'Hare Intl
$279

Alaska Airlines flights from Illinois to Santa Ana, California

Our best Alaska Airlines deals on Illinois to Santa Ana, California flight tickets
Alaska Airlines
Mar 3
STL7:00 amLambert-St Louis
11h 26m
1 stop
SNA4:26 pmSanta Ana J. Wayne/Orange Cnty
Mar 10
SNA3:01 pmSanta Ana J. Wayne/Orange Cnty
20h 50m
1 stop
STL1:51 pmLambert-St Louis
$237
Alaska Airlines
Feb 25
ORD7:00 amChicago O'Hare Intl
11h 26m
1 stop
SNA4:26 pmSanta Ana J. Wayne/Orange Cnty
Mar 10
SNA12:56 pmSanta Ana J. Wayne/Orange Cnty
9h 00m
1 stop
ORD11:56 pmChicago O'Hare Intl
$283
Alaska Airlines
Mar 5
ORD3:54 pmChicago O'Hare Intl
8h 36m
1 stop
SNA10:30 pmSanta Ana J. Wayne/Orange Cnty
Mar 10
SNA12:56 pmSanta Ana J. Wayne/Orange Cnty
9h 00m
1 stop
ORD11:56 pmChicago O'Hare Intl
$286

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 2月 5, 2026.
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

月 3/9

12:14 pm-8:57 pm

1 stop10h 43m

Santa Ana J. Wayne/Orange Cnty

水 3/11

4:37 pm-7:11 pm

1 stop24h 34m

$193

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

水 3/18

8:12 pm-11:07 am

1 stop16h 55m

Santa Ana J. Wayne/Orange Cnty

月 3/30

2:53 pm-11:19 am

1 stop18h 26m

$202

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

土 2/21

2:51 pm-10:37 am

1 stop21h 46m

Santa Ana J. Wayne/Orange Cnty

土 2/28

6:45 am-5:46 pm

1 stop9h 01m

$204

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

木 3/5

10:11 pm-12:42 pm

1 stop16h 31m

Santa Ana J. Wayne/Orange Cnty

月 3/9

1:12 pm-7:11 pm

1 stop27h 59m

$211

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

水 3/18

8:12 pm-11:07 am

1 stop16h 55m

Santa Ana J. Wayne/Orange Cnty

月 3/30

1:12 pm-11:19 am

1 stop20h 07m

$225

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

火 3/3

7:00 am-4:26 pm

1 stop11h 26m

Santa Ana J. Wayne/Orange Cnty

火 3/10

3:01 pm-1:51 pm

1 stop20h 50m

$237

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

金 5/1

7:47 pm-10:30 pm

Nonstop4h 43m

Santa Ana J. Wayne/Orange Cnty

月 5/4

2:20 pm-8:26 pm

Nonstop4h 06m

$269

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

土 2/28

6:54 pm-9:39 pm

Nonstop4h 45m

Santa Ana J. Wayne/Orange Cnty

土 3/7

3:23 pm-9:35 pm

Nonstop4h 12m

$270

MolineSanta Ana

MLI - SNA

MLISNA

Moline Quad-City

土 4/18

12:04 pm-10:05 pm

2 stops12h 01m

Santa Ana J. Wayne/Orange Cnty

木 4/23

3:12 pm-11:54 pm

1 stop6h 42m

$314

MolineSanta Ana

MLI - SNA

MLISNA

Moline Quad-City

火 3/3

8:15 am-3:10 pm

2 stops8h 55m

Santa Ana J. Wayne/Orange Cnty

火 3/10

8:49 am-10:22 pm

2 stops11h 33m

$377

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 $318. 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 $356. The most expensive day to fly to Santa Ana, California is Sunday, with ticket prices averaging around $457.

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 $370. 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 $399.

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 $372 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 $309 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 14% 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

$233

Fastest flight time

4h 32m

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 $233. The best round-trip flight deal from Illinois to Santa Ana, California found on momondo in the last 72 hours is $314.
The fastest flight from Illinois to Santa Ana, California takes 4h 32m
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 $60Free CancellationRating
6.3
8,419 reviews
Search Spirit Airlines flights
FrontierPriceFrom $85Free CancellationRating
5.7
3,053 reviews
Search Frontier flights
American AirlinesPriceFrom $234Free CancellationRating
7.2
11,237 reviews
Search American Airlines flights
United AirlinesPriceFrom $269Free CancellationRating
7.4
9,241 reviews
Search United Airlines flights
SouthwestPriceFrom $288Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $336Free CancellationRating
8.0
11,840 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
土 3/7
土 3/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States