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$144+ Cheap flights from Santiago de los Caballeros (STI) to Philadelphia (PHL)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
STI — PHL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Santiago de los Caballeros to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Santiago de los Caballeros (STI) to Philadelphia (PHL). 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 September 15, 2025.

Round-trip from

$337
(Kiwi.com)

One-way from

$144
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$512
From Santiago de los Caballeros to Philadelphia
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One-way flight from Santiago de los Caballeros to Philadelphia
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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Santiago de los Caballeros to Philadelphia

Cheapest flights from Santiago de los Caballeros to Philadelphia
Explore the most affordable flight options available from Santiago de los Caballeros to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This eDestinos deal was found by Cheapflights users on 9/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:10 pmSTI - PHL
1 stop12h 36mSpirit Airlines
Sat 10/45:00 amPHL - STI
1 stop6h 03mSpirit Airlines
Deal found 9/12$307
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 10/1811:43 amSTI - PHL
1 stop7h 06mSpirit Airlines
Thu 10/2310:54 amPHL - STI
1 stop23h 44mSpirit Airlines
Deal found 9/14$337
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/1611:43 amSTI - PHL
1 stop24h 09mMultiple Airlines
Thu 10/2310:54 amPHL - STI
1 stop23h 44mMultiple Airlines
Deal found 9/14$340
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:04 pmSTI - PHL
1 stop14h 23mMultiple Airlines
Wed 10/295:33 amPHL - STI
1 stop29h 05mMultiple Airlines
Deal found 9/13$342
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/1711:43 amSTI - PHL
1 stop7h 06mSpirit Airlines
Thu 10/2310:54 amPHL - STI
1 stop23h 44mSpirit Airlines
Deal found 9/14$344
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/1311:43 amSTI - PHL
1 stop7h 06mMultiple Airlines
Sat 10/189:30 amPHL - STI
1 stop25h 08mMultiple Airlines
Deal found 9/14$354
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 10/1811:43 amSTI - PHL
1 stop7h 06mMultiple Airlines
Thu 10/2312:27 pmPHL - STI
2 stops22h 11mMultiple Airlines
Deal found 9/14$355
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/1311:43 amSTI - PHL
1 stop7h 06mMultiple Airlines
Sun 10/195:05 amPHL - STI
1 stop29h 33mMultiple Airlines
Deal found 9/14$357
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/1311:43 amSTI - PHL
1 stop7h 06mSpirit Airlines
Thu 10/2310:54 amPHL - STI
1 stop23h 44mSpirit Airlines
Deal found 9/14$361
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/1711:43 amSTI - PHL
1 stop7h 06mMultiple Airlines
Thu 10/2312:27 pmPHL - STI
2 stops22h 11mMultiple Airlines
Deal found 9/14$362
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 10/1811:43 amSTI - PHL
1 stop7h 06mMultiple Airlines
Wed 10/225:53 pmPHL - STI
2 stops16h 45mMultiple Airlines
Deal found 9/14$363

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santiago de los Caballeros to Philadelphia 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 September 15, 2025.
Use the filters below to find and compare flights from Santiago de los Caballeros to Philadelphia that are best for you.

Fly from

Santiago de los Caballeros

Fly to

Philadelphia

Route

Depart

Return

Price

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Fri 10/17

11:43 am-6:49 pm

1 stop7h 06m

Philadelphia

Sat 10/18

7:54 pm-10:38 am

1 stop14h 44m

$337

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Thu 10/16

11:43 am-11:59 pm

1 stop12h 16m

Philadelphia

Sat 10/18

7:54 pm-10:38 am

1 stop14h 44m

$337

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Sat 10/18

11:43 am-6:49 pm

1 stop7h 06m

Philadelphia

Thu 10/23

10:54 am-10:38 am

1 stop23h 44m

$337

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Thu 10/16

11:43 am-11:52 am

1 stop24h 09m

Philadelphia

Thu 10/23

10:54 am-10:38 am

1 stop23h 44m

$340

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Thu 10/16

11:43 am-11:52 am

1 stop24h 09m

Philadelphia

Wed 10/22

5:33 am-10:38 am

1 stop29h 05m

$340

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Fri 10/17

11:43 am-11:59 pm

1 stop12h 16m

Philadelphia

Wed 10/22

5:33 am-10:38 am

1 stop29h 05m

$344

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Thu 10/16

11:43 am-11:59 pm

1 stop12h 16m

Philadelphia

Fri 10/17

9:55 pm-10:38 am

1 stop12h 43m

$344

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Mon 10/13

11:43 am-6:49 pm

1 stop7h 06m

Philadelphia

Sat 10/18

9:30 am-10:38 am

1 stop25h 08m

$354

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Mon 10/13

11:43 am-6:49 pm

1 stop7h 06m

Philadelphia

Sun 10/19

5:05 am-10:38 am

1 stop29h 33m

$357

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Mon 10/13

11:43 am-11:59 pm

1 stop12h 16m

Philadelphia

Wed 10/22

5:33 am-10:38 am

1 stop29h 05m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 23 results
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Best time to book a flight from Santiago de los Caballeros to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia 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 Philadelphia

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

Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Philadelphia (average of $236). Flying from Santiago de los Caballeros to Philadelphia in March is currently the most expensive (average of $295). 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 PHL?

Find hourly flight availability from Santiago de los Caballeros to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Santiago de los Caballeros to Philadelphia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 41% versus a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Santiago de los Caballeros to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Santiago de los Caballeros to Philadelphia in 7h 06m. Fly via Spirit Airlines to get the fastest option. Santiago de los Caballeros and Philadelphia are separated by a distance of 1440 mi.

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

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

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

    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 Philadelphia.

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

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

    Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Philadelphia (average of $236). Flying from Santiago de los Caballeros to Philadelphia in March is currently the most expensive (average of $295). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for Santiago de los Caballeros to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Santo Domingo to John F Kennedy Intl flights
Santo Domingo to Newark flights
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Santo Domingo to Allentown flights
Punta Cana to Dulles Intl flights
Puerto Plata to Newark flights
Puerto Plata to LaGuardia flights
Santo Domingo to Pittsburgh flights
Santiago de los Caballeros to Dulles Intl flights
Santiago de los Caballeros to Reagan-National flights
Punta Cana to Reagan-National flights
Punta Cana to Pittsburgh flights
Santiago de los Caballeros to Pittsburgh flights
La Romana to John F Kennedy Intl flights
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