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Santiago de los Caballeros

$162+ Cheap flights from Illinois to Santiago de los Caballeros (STI)

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — STI
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Illinois to Santiago de los Caballeros

Keep the following information in mind while searching for Illinois to Santiago de los Caballeros flight deals. Data was last updated June 16, 2025.

Round-trip from

$341
(Cheapflightsfares)

One-way from

$162
(Gotogate)

Popular in

December

Cheapest in

September

Average price

$405
From Illinois to Santiago de los Caballeros
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One-way flight from Illinois to Santiago de los Caballeros
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Highest demand for flights based on searches. 11% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Illinois to Santiago de los Caballeros

Cheapest flights from Illinois to Santiago de los Caballeros
Explore the most affordable flight options available from Illinois to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:50 pmORD - STI
1 stop13h 25mSpirit Airlines
Wed 8/2710:20 amSTI - ORD
1 stop8h 25mSpirit Airlines
Deal found 6/14$343
This Delta deal was found by Cheapflights users on 6/13. 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.
Mon 9/89:45 amORD - STI
2 stops14h 02mDelta
Fri 9/129:20 pmSTI - ORD
2 stops17h 53mDelta
Deal found 6/13$427
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:55 amORD - STI
2 stops12h 53mAmerican Airlines
Wed 8/277:00 amSTI - ORD
2 stops11h 20mAmerican Airlines
Deal found 6/14$472
This Delta deal was found by Cheapflights users on 6/13. 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.
Fri 9/261:05 pmMDW - STI
2 stops11h 08mDelta
Sat 10/46:20 amSTI - MDW
2 stops16h 24mDelta
Deal found 6/13$605
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:58 amSTL - STI
2 stops13h 57mAmerican Airlines
Mon 12/226:55 amSTI - STL
1 stop16h 48mAmerican Airlines
Deal found 6/14$634
This JetBlue deal was found by Cheapflights users on 6/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:45 amORD - STI
1 stop10h 18mJetBlue
Thu 9/253:45 amSTI - ORD
1 stop9h 25mJetBlue
Deal found 6/15$655
This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/286:15 pmORD - STI
3 stops38h 35mMultiple Airlines
Sat 8/210:55 amSTI - ORD
3 stops30h 46mMultiple Airlines
Deal found 6/15$687
This Delta deal was found by Cheapflights users on 6/14. 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.
Sun 12/146:45 amSTL - STI
2 stops16h 41mDelta
Sun 12/213:35 amSTI - STL
2 stops14h 36mDelta
Deal found 6/14$936

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Santiago de los Caballeros 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 June 16, 2025.
Use the filters below to find and compare flights from Illinois to Santiago de los Caballeros that are best for you.

Fly from

Illinois

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Wed 8/20

6:50 pm-9:15 am

1 stop13h 25m

Santiago de los Caballeros

Sat 8/23

10:20 am-5:45 pm

1 stop8h 25m

$341

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Mon 9/8

9:45 am-12:47 am

2 stops14h 02m

Santiago de los Caballeros

Fri 9/12

9:20 pm-2:13 pm

2 stops17h 53m

$427

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Wed 8/13

6:55 am-8:48 pm

2 stops12h 53m

Santiago de los Caballeros

Wed 8/27

7:00 am-5:20 pm

2 stops11h 20m

$472

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Tue 9/16

6:45 am-6:03 pm

1 stop10h 18m

Santiago de los Caballeros

Thu 9/25

3:45 am-12:10 pm

1 stop9h 25m

$655

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Mon 7/28

6:15 pm-9:50 am

3 stops38h 35m

Santiago de los Caballeros

Sat 8/2

10:55 am-4:41 pm

3 stops30h 46m

$687

ChicagoSantiago de los Caballeros

MDW - STI

MDWSTI

Chicago Midway

Wed 8/13

10:11 am-12:47 am

2 stops13h 36m

Santiago de los Caballeros

Wed 8/27

6:03 am-9:44 pm

2 stops16h 41m

$1,805

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Wed 7/30

5:40 pm-9:50 am

1 stop15h 10m

$162

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Tue 10/14

7:00 am-6:38 pm

2 stops10h 38m

$200

ChicagoSantiago de los Caballeros

ORD - STI

ORDSTI

Chicago O'Hare Intl

Sun 6/29

12:03 pm-12:50 pm

1 stop23h 47m

$247

ChicagoSantiago de los Caballeros

MDW - STI

MDWSTI

Chicago Midway

Sun 6/29

6:20 am-10:29 am

2 stops27h 09m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 12 results
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Best time to book a flight from Illinois to Santiago de los Caballeros

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

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

Currently, May is the cheapest month in which you can book a flight from Illinois to Santiago de los Caballeros (average of $347). Flying from Illinois to Santiago de los Caballeros in July is currently the most expensive (average of $630). 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 STI?

Find hourly flight availability from Illinois to Santiago de los Caballeros. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2025.

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

Rainfall in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

Temperature in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

Reviews of airlines servicing Santiago de los Caballeros

Get insights into the airlines that provide service to Santiago de los Caballeros. 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 Santiago de los Caballeros. Reviews last updated June 16, 2025.
Read reviews from past customers who have flown Delta, JetBlue and American Airlines from Illinois to Santiago de los Caballeros. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,922 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,061 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    Santiago de los Caballeros (STI) is the airport you will fly into if you book a flight from Illinois to Santiago de los Caballeros. It is only a 6.8 mi journey from Santiago (STI) to Santiago de los Caballeros’s city center.

  • What are the cheapest airlines to fly from Illinois to Santiago de los Caballeros one-way?

    The cheapest airlines for a one-way flight from Illinois to Santiago de los Caballeros are Spirit Airlines ($162), Delta ($200), and American Airlines ($336).

  • What are the most popular routes from Illinois to Santiago de los Caballeros?

    The most popular flight routes from Illinois to Santiago de los Caballeros are Chicago O'Hare Intl - Santiago de los Caballeros, Chicago Midway - Santiago de los Caballeros and Lambert-St Louis - Santiago de los Caballeros.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Illinois to Santiago de los Caballeros (average of $347). Flying from Illinois to Santiago de los Caballeros in July is currently the most expensive (average of $630). 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 Illinois to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Santiago de los Caballeros flights
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John F Kennedy Intl to Punta Cana flights
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Top 4 airlines flying from Illinois to Santiago de los Caballeros

Discover the top 4 airlines that operate flights from Illinois to Santiago de los Caballeros. 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$226Average$671FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$343Average$472FlexibilityNo cancel feeOn-time62%
DeltaCheapest$345Average$437FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$395Average$772FlexibilityNo cancel feeOn-time71%

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