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$73+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SNA — ORD
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
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 diciembre 15, 2025.

This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1811:52 amSNA - STL
1 stop20h 10mFrontier
dom. 12/2110:10 pmSTL - SNA
1 stop23h 11mFrontier
Deal found 12/14$259
This CheapOair deal was found by Cheapflights users on 12/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3011:53 amSNA - ORD
1 stop10h 19mFrontier
dom. 1/410:49 pmORD - SNA
1 stop22h 32mFrontier
Deal found 12/12$269
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
mié. 12/248:04 pmSNA - ORD
2 stops22h 19mMultiple Airlines
jue. 1/19:33 pmORD - SNA
1 stop12h 54mMultiple Airlines
Deal found 12/14$270
This CheapOair deal was found by Cheapflights users on 12/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2511:52 amSNA - ORD
1 stop10h 20mFrontier
sáb. 1/39:55 pmORD - SNA
1 stop12h 50mFrontier
Deal found 12/13$283
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/276:55 pmSNA - ORD
1 stop24h 44mFrontier
dom. 1/410:49 pmORD - SNA
1 stop22h 32mFrontier
Deal found 12/14$284
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1811:52 amSNA - STL
1 stop20h 10mFrontier
sáb. 12/2010:10 pmSTL - SNA
1 stop23h 02mFrontier
Deal found 12/14$285
This CheapOair deal was found by Cheapflights users on 12/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/206:55 pmSNA - ORD
1 stop24h 44mFrontier
dom. 1/410:49 pmORD - SNA
1 stop22h 32mFrontier
Deal found 12/13$289
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2412:05 pmSNA - ORD
1 stop9h 57mDelta
jue. 12/256:00 amORD - SNA
1 stop8h 44mDelta
Deal found 12/14$291
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2110:35 amSNA - MDW
1 stop10h 46mFrontier
dom. 1/410:50 pmMDW - SNA
1 stop14h 18mFrontier
Deal found 12/14$293
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2411:53 amSNA - ORD
1 stop10h 19mFrontier
vie. 1/94:30 pmORD - SNA
1 stop24h 03mFrontier
Deal found 12/15$293
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/1910:30 amSNA - STL
1 stop7h 17mFrontier
dom. 12/2110:10 pmSTL - SNA
1 stop23h 11mFrontier
Deal found 12/14$293
This Expedia deal was found by Cheapflights users on 12/15. 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.
lun. 12/2210:30 amSNA - STL
1 stop7h 37mMultiple Airlines
lun. 1/57:00 amSTL - SNA
1 stop9h 03mMultiple Airlines
Deal found 12/15$302

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 diciembre 15, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$179
(Kiwi.com)

One-way from

$73
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$368

Good round-trip deal

$376 or less

Good one-way deal

$211 or less
Provider with most accurate pricing for Los Angeles-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Chicago (CHI) flights.
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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 ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 15, 2025.
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

vie. 1/23

6:45 am-8:48 pm

1 stop12h 03m

Lambert-St Louis

jue. 1/29

10:01 pm-12:25 pm

1 stop16h 24m

$201

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

lun. 1/19

10:30 am-8:08 pm

1 stop7h 38m

Lambert-St Louis

jue. 1/29

10:01 pm-12:25 pm

1 stop16h 24m

$211

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

vie. 2/20

11:31 am-1:56 pm

1 stop24h 25m

Lambert-St Louis

jue. 2/26

10:11 pm-10:46 am

2 stops14h 35m

$221

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

vie. 2/27

4:37 pm-1:56 pm

2 stops19h 19m

Lambert-St Louis

dom. 3/1

10:11 pm-8:13 am

1 stop12h 02m

$225

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

dom. 2/22

11:22 am-1:09 pm

1 stop23h 47m

Lambert-St Louis

mié. 2/25

4:51 pm-8:13 am

2 stops17h 22m

$231

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

dom. 2/22

11:22 am-1:09 pm

1 stop23h 47m

Lambert-St Louis

jue. 2/26

10:11 pm-10:46 am

2 stops14h 35m

$233

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

vie. 1/23

12:17 pm-2:46 pm

1 stop24h 29m

Lambert-St Louis

dom. 1/25

9:27 pm-6:01 pm

1 stop22h 34m

$253

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

sáb. 2/28

6:45 am-5:46 pm

1 stop9h 01m

Lambert-St Louis

dom. 3/1

10:11 pm-8:13 am

1 stop12h 02m

$259

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

sáb. 2/21

6:45 am-5:46 pm

1 stop9h 01m

Lambert-St Louis

mié. 2/25

4:51 pm-8:13 am

2 stops17h 22m

$264

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

mié. 1/21

2:16 pm-8:25 pm

Nonstop4h 09m

Chicago O'Hare Intl

mié. 1/28

9:04 am-11:51 am

Nonstop4h 47m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

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 diciembre 15, 2025.

One of the essential ways to save on airfare from Santa Ana, California to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 38% on airfare.

What is the cheapest day to fly from Santa Ana, California to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Santa Ana to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Santa Ana, California to Illinois flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Santa Ana, California to Illinois?

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 diciembre 15, 2025.
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
11,452 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,452 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,249 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,051 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Spirit Airlines
6.3
Okay
8,187 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 09m. 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 $128, 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: Aer Lingus (84%), Brussels Airlines (84%), Qatar Airways (82%).

  • 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 $1,132, our data indicates the cheapest price to be $153. The most popular route (Santa Ana J. Wayne/Orange Cnty - Chicago O'Hare Intl), is priced around $144.

  • 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.

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Alternative routes for Santa Ana to Illinois

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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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$199FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$216FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$190Average$474FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$228Average$465FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$269Average$489FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$288Average$446FlexibilityNo cancel feeOn-time63%

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