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Santa Ana

$98+ Cheap flights from Illinois to Santa Ana, CA (SNA)

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.
ORD — SNA
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Illinois to Santa Ana

Cheapest flights from Illinois to Santa Ana
Explore the most affordable flight options available from Illinois to Santa Ana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

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.
Sun 12/2110:10 pmSTL - SNA
1 stop23h 11mFrontier
Mon 12/298:16 pmSNA - STL
1 stop23h 09mFrontier
Deal found 12/13$208
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.
Mon 12/151:16 pmSTL - SNA
1 stop6h 23mFrontier
Mon 12/298:16 pmSNA - STL
1 stop23h 09mFrontier
Deal found 12/13$254
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:49 pmORD - SNA
1 stop22h 32mFrontier
Sat 1/109:12 amSNA - ORD
1 stop6h 29mFrontier
Deal found 12/14$282
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:55 pmORD - SNA
1 stop12h 50mFrontier
Wed 12/2411:53 amSNA - ORD
1 stop10h 19mFrontier
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.
Sat 12/209:55 pmORD - SNA
1 stop12h 50mFrontier
Mon 12/228:16 pmSNA - ORD
1 stop16h 01mFrontier
Deal found 12/14$285
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.
Wed 12/247:43 pmSTL - SNA
1 stop18h 52mFrontier
Thu 1/111:52 amSNA - STL
1 stop20h 10mFrontier
Deal found 12/14$285
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:55 pmORD - SNA
1 stop12h 50mFrontier
Thu 12/2511:52 amSNA - ORD
1 stop10h 20mFrontier
Deal found 12/14$304
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.
Mon 12/156:15 amMDW - SNA
1 stop11h 40mFrontier
Sun 12/2110:35 amSNA - MDW
1 stop10h 46mFrontier
Deal found 12/14$309
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amORD - SNA
1 stop8h 44mDelta
Sat 12/2711:45 amSNA - ORD
1 stop6h 51mDelta
Deal found 12/13$325
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:40 pmORD - SNA
Nonstop4h 37mUnited Airlines
Sat 1/176:45 amSNA - ORD
Nonstop4h 19mUnited Airlines
Deal found 12/13$327
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:00 amORD - SNA
1 stop10h 22mAlaska Airlines
Sat 1/2410:19 amSNA - ORD
1 stop11h 31mAlaska Airlines
Deal found 12/15$333
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.
Wed 12/247:00 amORD - SNA
1 stop6h 08mFrontier
Mon 12/298:16 pmSNA - ORD
1 stop16h 01mFrontier
Deal found 12/14$334

Find flight deals from Illinois to Santa Ana

Keep the following information in mind while searching for Illinois to Santa Ana flight deals. Data was last updated December 15, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$158
(Kiwi.com)

One-way from

$98
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$374

Good round-trip deal

$312 or less

Good one-way deal

$273 or less
Provider with most accurate pricing for Chicago (CHI)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Los Angeles flights.
Search Deals
From Illinois to Santa Ana J. Wayne/Orange Cnty
Search Deals
One-way flight from Illinois to Santa Ana J. Wayne/Orange Cnty
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 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 Illinois to Santa Ana J. Wayne/Orange Cnty.
Search Deals
Price to beat on a one-way flight from Illinois to Santa Ana J. Wayne/Orange Cnty.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Santa Ana 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 December 15, 2025.
Use the filters below to find and compare flights from Illinois to Santa Ana that are best for you.

Fly from

Illinois

Fly to

Santa Ana

Route

Depart

Return

Price

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

Sun 12/21

10:10 pm-7:21 pm

1 stop23h 11m

Santa Ana J. Wayne/Orange Cnty

Mon 12/29

8:16 pm-9:25 pm

1 stop23h 09m

$208

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 1/12

1:07 pm-8:57 pm

1 stop9h 50m

Santa Ana J. Wayne/Orange Cnty

Mon 1/19

5:31 pm-2:46 pm

2 stops43h 15m

$209

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 1/7

7:43 pm-10:52 am

1 stop17h 09m

Santa Ana J. Wayne/Orange Cnty

Sun 1/11

4:16 pm-12:12 pm

1 stop17h 56m

$218

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 1/8

1:07 pm-6:50 pm

1 stop7h 43m

Santa Ana J. Wayne/Orange Cnty

Fri 1/9

1:20 pm-9:21 pm

1 stop6h 01m

$239

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 3/6

8:12 pm-10:47 am

1 stop16h 35m

Santa Ana J. Wayne/Orange Cnty

Sun 3/8

11:32 am-9:49 am

1 stop20h 17m

$253

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 1/9

10:16 pm-3:48 pm

1 stop19h 32m

Santa Ana J. Wayne/Orange Cnty

Sun 1/11

4:16 pm-12:12 pm

1 stop17h 56m

$253

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Sat 1/17

9:04 am-11:51 am

Nonstop4h 47m

Santa Ana J. Wayne/Orange Cnty

Tue 1/20

10:51 am-5:00 pm

Nonstop4h 09m

$269

ChicagoSanta Ana

ORD - SNA

ORDSNA

Chicago O'Hare Intl

Tue 2/10

7:00 am-1:11 pm

1 stop8h 11m

Santa Ana J. Wayne/Orange Cnty

Tue 2/17

2:22 pm-8:25 pm

Nonstop4h 03m

$279

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 1/8

1:07 pm-6:50 pm

1 stop7h 43m

Santa Ana J. Wayne/Orange Cnty

Fri 1/9

8:14 pm-10:02 am

2 stops11h 48m

$280

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 Illinois to Santa Ana

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

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Santa Ana, California (average of $80). Flying from Illinois to Santa Ana, California in January is currently the most expensive (average of $122). 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 IL to SNA?

Find hourly flight availability from Illinois to Santa Ana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 49% on flights from Illinois to Santa Ana, California by exploring options for tickets in the evening.

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

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

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Santa Ana. 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 into for flights to Santa Ana from Illinois?

    If you book a flight to Santa Ana from Illinois, you will be flying to J. Wayne/Orange Cnty, which is the city’s only airport. Santa Ana J. Wayne/Orange Cnty (SNA) is located 4.8 mi from the center of Santa Ana.

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

    For as low as $269, Frontier can have you in Santa Ana, California from Illinois in 4h 47m. The distance between Illinois and Santa Ana, California is about 1721 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $85 and $114 on Spirit Airlines and American Airlines, respectively.

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

    While some choose either Chicago Midway - Santa Ana J. Wayne/Orange Cnty or Lambert-St Louis - Santa Ana J. Wayne/Orange Cnty, Chicago O'Hare Intl - Santa Ana J. Wayne/Orange Cnty is the most popular route from Illinois to Santa Ana, California.

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

    The top 3 most reliable airlines when flying from Illinois to Santa Ana, California are Aer Lingus (83%), Qatar Airways (80%) and Gulf Air (79%).

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

    Looking at all options, your cheapest flight can be booked for $169. While the most popular route (Chicago O'Hare Intl - Santa Ana J. Wayne/Orange Cnty) can be booked for $172 on average, our data indicates $393 when flying from Illinois to Santa Ana, California.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Illinois to Santa Ana, California (average of $80). Flying from Illinois to Santa Ana, California in January is currently the most expensive (average of $122). 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

Traveling to a place near Santa Ana?

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Alternative routes for Illinois to Santa Ana

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Top 6 airlines flying from Illinois to Santa Ana

Discover the top 6 airlines that operate flights from Illinois to Santa Ana. 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$85Average$179FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$217FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$234Average$465FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$413FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$288Average$433FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$336Average$459FlexibilityNo cancel feeOn-time75%

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