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$244+ Cheap flights from Santiago de los Caballeros (STI) 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
STI — ORD
Aug 24 — Aug 311
Sun 8/24
Sun 8/31
1 adult, Economy
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Cheap flight deals from Santiago de los Caballeros to Illinois

Keep the following information in mind while searching for Santiago de los Caballeros to Illinois flight deals. Data was last updated August 19, 2025.

Round-trip from

$387
(Kiwi.com)

One-way from

$244
(American Airlines)

Popular in

April

Cheapest in

July

Average price

$540
From Santiago de los Caballeros to Illinois
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One-way flight from Santiago de los Caballeros to Illinois
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Highest demand for flights based on searches. 14% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Santiago de los Caballeros to Illinois

Cheapest flights from Santiago de los Caballeros to Illinois
Explore the most affordable flight options available from Santiago de los Caballeros to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sat 9/612:10 pmSTI - ORD
1 stop11h 38mSpirit Airlines
Sat 9/1311:57 amORD - STI
1 stop22h 06mSpirit Airlines
Deal found 8/19$387
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:40 pmSTI - ORD
2 stops16h 55mDelta
Tue 9/3010:40 amORD - STI
1 stop7h 31mDelta
Deal found 8/17$445
This Delta deal was found by Cheapflights users on 8/18. 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.
Tue 12/236:50 amSTI - ORD
2 stops14h 03mDelta
Sat 1/39:55 amORD - STI
2 stops15h 15mDelta
Deal found 8/18$447
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:20 amSTI - ORD
1 stop14h 39mSpirit Airlines
Sat 9/611:12 amORD - STI
2 stops22h 51mSpirit Airlines
Deal found 8/19$453
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Sat 8/301:31 pmSTI - ORD
1 stop8h 54mAmerican Airlines
Sat 9/67:15 pmORD - STI
1 stop16h 12mAmerican Airlines
Deal found 8/19$463
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Mon 9/151:29 pmSTI - ORD
1 stop20h 11mAmerican Airlines
Tue 9/305:00 amORD - STI
1 stop6h 27mAmerican Airlines
Deal found 8/18$474

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santiago de los Caballeros 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 August 19, 2025.
Use the filters below to find and compare flights from Santiago de los Caballeros to Illinois that are best for you.

Fly from

Santiago de los Caballeros

Fly to

Illinois

Route

Depart

Return

Price

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Sat 9/6

12:10 pm-10:48 pm

1 stop11h 38m

Chicago O'Hare Intl

Sat 9/13

11:57 am-11:03 am

1 stop22h 06m

$387

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Mon 9/15

8:40 pm-12:35 pm

2 stops16h 55m

Chicago O'Hare Intl

Tue 9/30

10:40 am-7:11 pm

1 stop7h 31m

$445

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Wed 10/1

5:15 am-12:10 pm

1 stop7h 55m

Chicago O'Hare Intl

Wed 10/15

1:36 pm-2:16 am

1 stop11h 40m

$445

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Tue 12/23

6:50 am-6:53 pm

2 stops14h 03m

Chicago O'Hare Intl

Sat 1/3

1:25 pm-11:59 pm

1 stop8h 34m

$447

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Sat 8/30

10:20 am-11:59 pm

1 stop14h 39m

Chicago O'Hare Intl

Sat 9/6

11:12 am-11:03 am

2 stops22h 51m

$453

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Sat 8/30

1:31 pm-9:25 pm

1 stop8h 54m

Chicago O'Hare Intl

Sat 9/6

7:15 pm-12:27 pm

1 stop16h 12m

$463

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Mon 9/15

1:29 pm-8:40 am

1 stop20h 11m

Chicago O'Hare Intl

Tue 9/30

5:00 am-12:27 pm

1 stop6h 27m

$474

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Sat 8/30

7:00 am-4:04 pm

1 stop10h 04m

$244

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Sun 8/31

7:00 am-9:25 pm

1 stop15h 25m

$250

Santiago de los CaballerosChicago

STI - ORD

STIORD

Santiago de los Caballeros

Mon 9/15

1:12 pm-8:49 pm

1 stop8h 37m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 15 results
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Best time to book a flight from Santiago de los Caballeros to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Santiago de los Caballeros 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 Santiago de los Caballeros to Illinois

What is the cheapest month to book a flight from Santiago de los Caballeros to Illinois?

Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Illinois (average of $245). Flying from Santiago de los Caballeros to Illinois in March is currently the most expensive (average of $321). 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 STI to IL?

Find hourly flight availability from Santiago de los Caballeros 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 August 19, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Santiago de los Caballeros to Illinois as you normally would.

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 August 19, 2025.
Read through reviews of airlines operating flights from Santiago de los Caballeros to Illinois, such as United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,922 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,922 reviews
United Airlines
7.4
Good
8,922 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Santiago de los Caballeros 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 Santiago de los Caballeros to Illinois?

    For a flight from Santiago de los Caballeros to Illinois, you will be flying from Santiago. Santiago de los Caballeros (STI) is just 6.8 mi from the center of the city.

  • How long is the flight from Santiago de los Caballeros to Illinois?

    Spirit Airlines, Delta, and JetBlue can get you from Santiago de los Caballeros to Illinois in just under 7h 55m. Your travel time can differ by up to 9h. There are 1858 mi between Santiago de los Caballeros and Illinois. This flight may include one or multiple stops.

  • Can I find deals for flights from Santiago de los Caballeros to Illinois that include hotel bookings?

    Yes. In addition to deals on Santiago de los Caballeros to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santiago de los Caballeros to Illinois?

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

  • Can I find deals for business class flights from Santiago de los Caballeros to Illinois?

    Yes. Cheapflights offers flight deals from Santiago de los Caballeros 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 Santiago de los Caballeros to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Illinois (average of $245). Flying from Santiago de los Caballeros to Illinois in March is currently the most expensive (average of $321). 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 Santiago de los Caballeros to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Santiago de los Caballeros to Illinois

Discover the top airline that operate flights from Santiago de los Caballeros 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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$502Average$736FlexibilityNo cancel feeOn-time69%

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