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$69+ Cheap flights from Santa Ana, CA (SNA) to Illinois

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SNA — ORD
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Santa Ana to Illinois

Cheapest flights from Santa Ana to Illinois
Explore the most affordable flight options available from Santa Ana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:07 pm
SNA
-
STL
2 stops14h 42m
Multiple Airlines
Mon 3/912:14 pm
STL
-
SNA
1 stop10h 43m
Multiple Airlines
Deal found 1/28$207
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:45 am
SNA
-
STL
1 stop12h 21m
Multiple Airlines
Sun 2/89:32 pm
STL
-
SNA
1 stop22h 29m
Multiple Airlines
Deal found 1/28$225
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:19 pm
SNA
-
STL
1 stop19h 29m
Frontier
Wed 4/88:16 pm
STL
-
SNA
2 stops24h 06m
Frontier
Deal found 1/27$238
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:37 pm
SNA
-
STL
2 stops15h 11m
Multiple Airlines
Mon 4/1312:22 pm
STL
-
SNA
1 stop9h 13m
Multiple Airlines
Deal found 1/27$245
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:19 pm
SNA
-
STL
1 stop19h 29m
Frontier
Mon 4/1312:22 pm
STL
-
SNA
1 stop9h 13m
Frontier
Deal found 1/27$250
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/312:19 pm
SNA
-
STL
1 stop19h 29m
Frontier
Wed 4/88:16 pm
STL
-
SNA
2 stops24h 06m
Frontier
Deal found 1/27$251
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:12 pm
SNA
-
STL
1 stop19h 37m
Multiple Airlines
Mon 3/168:12 pm
STL
-
SNA
2 stops42h 10m
Multiple Airlines
Deal found 1/26$254
This Expedia deal was found by Cheapflights users on 1/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:58 am
SNA
-
STL
1 stop10h 28m
Multiple Airlines
Mon 2/237:00 am
STL
-
SNA
1 stop11h 26m
Multiple Airlines
Deal found 1/26$256
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 3/253:24 pm
SNA
-
STL
1 stop6h 20m
American Airlines
Wed 4/16:00 am
STL
-
SNA
1 stop6h 46m
American Airlines
Deal found 1/26$257
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/312:19 pm
SNA
-
STL
1 stop19h 29m
Frontier
Mon 4/1312:22 pm
STL
-
SNA
1 stop9h 13m
Frontier
Deal found 1/27$264
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/192:22 pm
SNA
-
ORD
Nonstop4h 03m
United Airlines
Mon 2/237:44 pm
ORD
-
SNA
Nonstop4h 46m
United Airlines
Deal found 1/27$269
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:53 pm
SNA
-
ORD
2 stops37h 28m
Multiple Airlines
Sat 4/45:53 pm
ORD
-
SNA
1 stop19h 41m
Multiple Airlines
Deal found 1/26$270

Find flight deals from Santa Ana to Illinois

Keep the following information in mind while searching for Santa Ana to Illinois flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$207
(Kiwi.com)

One-way from

$69
(Trip.com)

Popular in

January

Cheapest in

September

Average price

$369

Good round-trip deal

$358 or less

Good one-way deal

$234 or less
Provider with most accurate pricing for Los Angeles-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Chicago (CHI) flights.
Search Deals
From Santa Ana J. Wayne/Orange Cnty to Illinois
Search Deals
One-way flight from Santa Ana J. Wayne/Orange Cnty to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Santa Ana J. Wayne/Orange Cnty to Illinois.
Search Deals
Price to beat on a one-way flight from Santa Ana J. Wayne/Orange Cnty to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Ana 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, Cheapflights users made 2,558,603 searches. Data last updated January 28, 2026.
Use the filters below to find and compare flights from Santa Ana to Illinois that are best for you.

Fly from

Santa Ana

Fly to

Illinois

Route

Depart

Return

Price

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 4/2

12:19 pm-9:48 am

1 stop19h 29m

Lambert-St Louis

Wed 4/8

8:16 pm-6:22 pm

2 stops24h 06m

$238

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 2/19

8:58 am-9:26 pm

1 stop10h 28m

Lambert-St Louis

Mon 2/23

7:00 am-4:26 pm

1 stop11h 26m

$256

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Wed 2/18

6:45 am-12:55 pm

Nonstop4h 10m

Chicago O'Hare Intl

Mon 2/23

7:44 pm-10:30 pm

Nonstop4h 46m

$269

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Thu 2/26

2:22 pm-8:25 pm

Nonstop4h 03m

Chicago O'Hare Intl

Sat 2/28

12:46 pm-8:50 pm

1 stop10h 04m

$279

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

Tue 6/2

5:00 am-9:05 am

1 stop6h 05m

$285

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Fri 4/17

2:20 pm-8:25 pm

Nonstop4h 05m

Chicago O'Hare Intl

Mon 4/27

7:49 pm-10:30 pm

Nonstop4h 41m

$288

Santa AnaChicago

SNA - MDW

SNAMDW

Santa Ana J. Wayne/Orange Cnty

Thu 2/19

7:30 pm-5:05 am

1 stop7h 35m

Chicago Midway

Mon 2/23

8:10 am-4:00 pm

1 stop9h 50m

$289

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Wed 5/20

6:45 am-7:03 pm

1 stop10h 18m

Chicago O'Hare Intl

Tue 6/2

6:00 am-2:18 pm

1 stop10h 18m

$289

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Thu 3/19

7:05 am-6:05 pm

1 stop9h 00m

Chicago O'Hare Intl

Wed 3/25

1:19 pm-6:10 pm

1 stop6h 51m

$289

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Fri 5/22

9:20 pm-8:34 am

1 stop9h 14m

Chicago O'Hare Intl

Fri 5/29

3:50 pm-8:33 pm

1 stop6h 43m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
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Best time to book a flight from Santa Ana to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Santa Ana 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.

Cheapflights Insights

Everything you need to know about your flight from Santa Ana to Illinois

What is the cheapest month to book a flight from Santa Ana, California to Illinois?

Currently, March is the cheapest month in which you can book a flight from Santa Ana, California to Illinois (average of $77). Flying from Santa Ana, California to Illinois in October is currently the most expensive (average of $147). 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 SNA to IL?

Find hourly flight availability from Santa Ana to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 28, 2026.

When flying from Santa Ana, California to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Santa Ana, California to Illinois

Explore weekly flight availability from Santa Ana to Illinois. 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 January 28, 2026.

The most flights from SNA to USIL are scheduled on a Monday (24 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated January 28, 2026.
Read through reviews of airlines operating flights from Santa Ana to Illinois, such as Alaska Airlines, Southwest, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,801 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,801 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,268 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,209 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,201 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Spirit Airlines
6.3
Okay
8,387 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Santa Ana to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santa Ana to Illinois?

    Most people fly from Santa Ana J. Wayne/Orange Cnty (SNA) if they book a flight from Santa Ana to Illinois. Santa Ana J. Wayne/Orange Cnty is conveniently located just 4.8 mi from Santa Ana’s city center.

  • How long is the flight from Santa Ana, California to Illinois?

    A quick flight from Santa Ana, California to Illinois can take about 4h 10m. Frontier provides one of the quickest options available for as low as $269. The distance from Santa Ana, California to Illinois is about 1721 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Santa Ana, California to Illinois one-way?

    $40 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Delta, with prices starting from $67 and $129, respectively.

  • What are the most popular routes from Santa Ana, California to Illinois?

    When deciding which route to take from Santa Ana, California to Illinois consider Santa Ana J. Wayne/Orange Cnty - Chicago O'Hare Intl, Santa Ana J. Wayne/Orange Cnty - Chicago Midway or Santa Ana J. Wayne/Orange Cnty - Lambert-St Louis as they are the most popular.

  • What are the most reliable airlines from Santa Ana, California to Illinois?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Santa Ana, California to Illinois on time: Royal Jordanian (90%), Brussels Airlines (85%), United Airlines (83%).

  • What are the cheapest flights from Santa Ana, California to Illinois?

    Looking for the cheapest flight from Santa Ana, California to Illinois? While on average our users pay $997, our data indicates the cheapest price to be $158. The most popular route (Santa Ana J. Wayne/Orange Cnty - Chicago O'Hare Intl), is priced around $147.

  • Can I find deals for flights from Santa Ana to Illinois that include hotel bookings?

    Yes. In addition to deals on Santa Ana to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Ana to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Ana to Illinois.

  • Can I find deals for business class flights from Santa Ana to Illinois?

    Yes. Cheapflights offers flight deals from Santa Ana to Illinois 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 Santa Ana, California to Illinois?

    Currently, March is the cheapest month in which you can book a flight from Santa Ana, California to Illinois (average of $77). Flying from Santa Ana, California to Illinois in October is currently the most expensive (average of $147). 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 Santa Ana to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Santa Ana to Illinois

Discover the top 6 airlines that operate flights from Santa Ana to Illinois. 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 2,558,603 searches. Data last updated January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$194FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$218FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$190Average$476FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$228Average$460FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$269Average$466FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$288Average$443FlexibilityNo cancel feeOn-time63%

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