For a smooth departure from SNA, consider parking at the terminal for convenience, but check availability online as lots can fill up quickly.
$149+ Cheap flights from Santa Ana, CA (SNA) to O'Hare Intl (ORD)
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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
SNA — ORD
Jan 17 — Jan 241
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Santa Ana to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Santa Ana J. Wayne/Orange Cnty to Chicago O'Hare Intl are usually found in August or May, booked 89 days in advance, depart on a Wednesday or Saturday and return on a Saturday
Cheap flight deals from Santa Ana to O'Hare Intl
Cheapest flights from Santa Ana to O'Hare IntlExplore the most affordable flight options available from Santa Ana to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
Explore the most affordable flight options available from Santa Ana to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
This CheapOair deal was found by Cheapflights users on 12/16. 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 12/228:16 pmSNA - ORD
1 stop16h 01mFrontier
Sun 1/118:49 pmORD - SNA
1 stop17h 57mFrontier
Deal found 12/16![Frontier logo]()
$269
This Expedia deal was found by Cheapflights users on 12/16. 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.
Mon 12/228:16 pmSNA - ORD
1 stop16h 01mFrontier
Thu 12/259:33 pmORD - SNA
1 stop12h 54mFrontier
Deal found 12/16![Frontier logo]()
$284
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/228:16 pmSNA - ORD
1 stop16h 01mFrontier
Mon 1/57:00 amORD - SNA
1 stop6h 08mFrontier
Deal found 12/17![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 12/16. 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 12/298:16 pmSNA - ORD
1 stop16h 01mFrontier
Mon 1/57:00 amORD - SNA
1 stop6h 08mFrontier
Deal found 12/16![Frontier logo]()
$305
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/307:35 pmSNA - ORD
1 stop7h 59mAmerican Airlines
Wed 1/78:15 amORD - SNA
Nonstop4h 34mAmerican Airlines
Deal found 12/16![American Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Wed 12/316:45 amSNA - ORD
2 stops21h 20mMultiple Airlines
Sun 1/410:49 pmORD - SNA
1 stop13h 27mMultiple Airlines
Deal found 12/17![Multiple Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:10 pmSNA - ORD
1 stop5h 25mSouthwest
Sun 1/43:45 pmORD - SNA
1 stop8h 10mSouthwest
Deal found 12/17![Southwest logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Mon 12/298:16 pmSNA - ORD
2 stops13h 11mMultiple Airlines
Sun 1/410:49 pmORD - SNA
1 stop13h 27mMultiple Airlines
Deal found 12/17![Multiple Airlines logo]()
$326
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/316:45 amSNA - ORD
Nonstop4h 19mUnited Airlines
Sun 1/47:54 pmORD - SNA
Nonstop4h 36mUnited Airlines
Deal found 12/17![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/314:25 pmSNA - ORD
1 stop11h 09mAmerican Airlines
Sat 1/35:00 amORD - SNA
1 stop6h 00mAmerican Airlines
Deal found 12/17![American Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/287:57 pmSNA - ORD
2 stops26h 15mMultiple Airlines
Sun 1/410:49 pmORD - SNA
1 stop13h 27mMultiple Airlines
Deal found 12/17![Multiple Airlines logo]()
$334
Find flight deals from Santa Ana to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Santa Ana (SNA) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $269 (American Airlines) |
One-way from | $149 (CheapOair) |
Popular in | March |
Cheapest in | August |
Average price | $416 |
Good round-trip deal | $376 or less |
Good one-way deal | $211 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Santa Ana to O'Hare Intl 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 18, 2025.
Use the filters below to find and compare flights from Santa Ana to Chicago O'Hare Intl Airport that are best for you.
Fly from
Santa Ana
Fly to
O'Hare Intl
Route
Depart
Return
Price
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Thu 3/12
3:24 pm-9:35 pm
Nonstop4h 11m
Chicago O'Hare Intl
Mon 3/16
11:49 am-2:26 pm
Nonstop4h 37m
$269
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Sat 1/10
8:00 am-5:07 pm
1 stop7h 07m
Chicago O'Hare Intl
Sat 1/24
4:05 pm-6:41 pm
Nonstop4h 36m
$275
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Wed 1/7
7:00 am-5:04 pm
1 stop8h 04m
Chicago O'Hare Intl
Sun 1/11
7:48 pm-10:24 pm
Nonstop4h 36m
$279
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Thu 3/12
2:22 pm-8:25 pm
Nonstop4h 03m
Chicago O'Hare Intl
Wed 3/18
6:17 am-12:22 pm
1 stop8h 05m
$279
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Sun 2/1
7:45 am-11:50 pm
1 stop14h 05m
Chicago O'Hare Intl
Wed 2/4
8:00 am-4:12 pm
1 stop10h 12m
$286
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Tue 1/27
8:15 am-11:50 pm
1 stop13h 35m
Chicago O'Hare Intl
Fri 1/30
8:00 am-10:27 pm
1 stop16h 27m
$286
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Fri 3/27
9:20 pm-8:30 am
1 stop9h 10m
Chicago O'Hare Intl
Sun 4/5
6:00 am-12:38 pm
1 stop8h 38m
$289
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Thu 2/26
12:56 pm-11:56 pm
1 stop9h 00m
Chicago O'Hare Intl
Tue 3/3
2:07 pm-8:25 pm
1 stop8h 18m
$289
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Wed 1/7
9:50 am-10:35 pm
2 stops10h 45m
Chicago O'Hare Intl
Sun 1/11
4:25 pm-8:35 pm
1 stop6h 10m
$306
Santa AnaChicago
SNA - ORD
SNAORD
Santa Ana J. Wayne/Orange Cnty
Thu 3/12
7:01 pm-8:57 am
2 stops11h 56m
Chicago O'Hare Intl
Tue 3/17
2:20 pm-10:44 pm
1 stop10h 24m
$310
Showing 1-10 of 22 results
Compare providers for flights from Santa Ana to O'Hare Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Santa Ana to O'Hare Intl in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Santa Ana, California-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Santa Ana, California-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Santa Ana, California-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Santa Ana, California-Chicago O'Hare Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Santa Ana, California-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Santa Ana to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 Chicago O'Hare Intl Airport
Prices
Delays
How far ahead should I book a flight from Santa Ana, California to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Santa Ana to O'Hare Intl. Price data was last updated on December 12, 2025.
The price you pay for your flight from Santa Ana, California to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Santa Ana, California to Chicago O'Hare Intl Airport?
Currently, March is the cheapest month in which you can book a flight from Santa Ana, California to Chicago O'Hare Intl Airport (average of $77). Flying from Santa Ana, California to Chicago O'Hare Intl Airport 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 ORD?
Find hourly flight availability from Santa Ana to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
A simple way to save on the total cost of your ticket is to fly from Santa Ana, California to Chicago O'Hare Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Santa Ana, California to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Santa Ana to O'Hare Intl. Price data was last updated on December 13, 2025.
Travelers seeking maximum savings on their Santa Ana, California to Chicago O'Hare Intl Airport flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Santa Ana to Chicago delayed?
About 8% of weekly flights between Santa Ana and Chicago have experienced delays in the past year, with the average delay time being 175 minutes.
What is the most punctual flight time for Santa Ana to Chicago flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Santa Ana to Chicago flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.
The best insider tips for Santa Ana to Chicago O'Hare Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Santa Ana to Chicago O'Hare Intl Airport trip
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated December 18, 2025.
See what other customers who have flown with Alaska Airlines, United Airlines, and American Airlines from Santa Ana to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Food
7.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Food
7.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Food
7.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Food
7.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Food
7.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Related info for your journey
Find useful and relevant information for your journey from Santa Ana to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsSchaumburg
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Alternative routes for Santa Ana to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Santa Ana to O'Hare Intl
Discover the top 6 airlines that operate flights from Santa Ana to O'Hare Intl. 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 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$199 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$110 | Average$216 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$190 | Average$474 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$269 | Average$446 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$269 | Average$381 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$336 | Average$446 | FlexibilityNo cancel fee | On-time63% |