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Santiago de los Caballeros

$140+ Cheap flights from Philadelphia (PHL) 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Santiago de los Caballeros are usually found in October or September, booked 61 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap flight deals from Philadelphia to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Santiago de los Caballeros (STI). 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 11, 2025.

Round-trip from

$303
(Cheapflightsfares)

One-way from

$141
(Cheapflightsfares)

Popular in

November

Cheapest in

October

Average price

$352
From Philadelphia to Santiago de los Caballeros
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One-way flight from Philadelphia to Santiago de los Caballeros
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Highest demand for flights based on searches. 13% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 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 Philadelphia to Santiago de los Caballeros

Cheapest flights from Philadelphia to Santiago de los Caballeros
Explore the most affordable flight options available from Philadelphia to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Thu 9/255:00 amPHL - STI
1 stop6h 03mSpirit Airlines
Mon 10/611:43 amSTI - PHL
1 stop7h 06mSpirit Airlines
Deal found 9/10$303
This Expedia deal was found by Cheapflights users on 9/11. 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.
Thu 9/255:00 amPHL - STI
1 stop6h 03mSpirit Airlines
Thu 10/212:10 pmSTI - PHL
1 stop8h 48mSpirit Airlines
Deal found 9/11$310
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Mon 9/299:50 pmPHL - STI
1 stop13h 13mSpirit Airlines
Fri 11/76:18 pmSTI - PHL
1 stop16h 28mSpirit Airlines
Deal found 9/10$315
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Sat 10/187:54 pmPHL - STI
1 stop14h 44mSpirit Airlines
Sat 10/2511:43 amSTI - PHL
1 stop11h 53mSpirit Airlines
Deal found 9/10$319
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Fri 10/39:50 pmPHL - STI
1 stop13h 13mSpirit Airlines
Fri 10/1011:43 amSTI - PHL
1 stop7h 06mSpirit Airlines
Deal found 9/10$327
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Tue 10/79:14 pmPHL - STI
2 stops37h 24mMultiple Airlines
Sat 10/1111:43 amSTI - PHL
1 stop7h 06mMultiple Airlines
Deal found 9/11$331
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Fri 10/107:54 pmPHL - STI
1 stop14h 44mSpirit Airlines
Fri 10/1711:43 amSTI - PHL
1 stop7h 06mSpirit Airlines
Deal found 9/10$340
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/257:54 pmPHL - STI
1 stop14h 44mSpirit Airlines
Sat 11/86:18 pmSTI - PHL
1 stop7h 14mSpirit Airlines
Deal found 9/11$345
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/195:05 amPHL - STI
1 stop29h 33mMultiple Airlines
Fri 10/2411:43 amSTI - PHL
1 stop12h 16mMultiple Airlines
Deal found 9/9$348
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/39:50 pmPHL - STI
1 stop13h 13mSpirit Airlines
Sun 10/511:43 amSTI - PHL
1 stop21h 49mSpirit Airlines
Deal found 9/10$356
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Fri 11/75:15 amPHL - STI
1 stop10h 51mSpirit Airlines
Tue 11/116:18 pmSTI - PHL
1 stop16h 28mSpirit Airlines
Deal found 9/11$358
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Mon 9/229:50 pmPHL - STI
1 stop13h 13mSpirit Airlines
Fri 10/312:10 pmSTI - PHL
1 stop12h 36mSpirit Airlines
Deal found 9/11$360

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 September 11, 2025.
Use the filters below to find and compare flights from Philadelphia to Santiago de los Caballeros that are best for you.

Fly from

Philadelphia

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 9/25

5:00 am-11:03 am

1 stop6h 03m

Santiago de los Caballeros

Thu 10/2

12:10 pm-8:58 pm

1 stop8h 48m

$310

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 10/18

7:54 pm-10:38 am

1 stop14h 44m

Santiago de los Caballeros

Sat 10/25

11:43 am-11:36 pm

1 stop11h 53m

$319

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 10/19

5:05 am-10:38 am

1 stop29h 33m

Santiago de los Caballeros

Fri 10/24

11:43 am-11:59 pm

1 stop12h 16m

$348

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 9/22

9:50 pm-11:03 am

1 stop13h 13m

Santiago de los Caballeros

Thu 10/2

12:10 pm-8:58 pm

1 stop8h 48m

$360

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 10/19

1:58 pm-10:38 am

2 stops20h 40m

Santiago de los Caballeros

Fri 10/24

11:43 am-6:49 pm

1 stop7h 06m

$373

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 10/3

9:50 pm-11:03 am

1 stop13h 13m

Santiago de los Caballeros

Fri 10/10

11:43 am-10:25 am

2 stops22h 42m

$380

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 10/10

7:54 pm-10:38 am

1 stop14h 44m

Santiago de los Caballeros

Fri 10/17

11:43 am-10:25 am

2 stops22h 42m

$393

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 9/26

9:50 pm-11:03 am

1 stop13h 13m

Santiago de los Caballeros

Wed 10/1

12:10 pm-11:47 pm

1 stop11h 37m

$401

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 9/29

4:03 pm-11:03 am

3 stops43h 00m

Santiago de los Caballeros

Fri 11/7

6:18 pm-12:32 am

1 stop7h 14m

$420

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 12/3

5:15 am-5:06 pm

1 stop10h 51m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 19 results
1
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Best time to book a flight from Philadelphia to Santiago de los Caballeros

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

How far ahead should I book a flight from Philadelphia to Santiago de los Caballeros?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Santiago de los Caballeros. Price data was last updated on August 29, 2025.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Santiago de los Caballeros. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Philadelphia to Santiago de los Caballeros (average of $347). Flying from Philadelphia to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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 PHL to STI?

Find hourly flight availability from Philadelphia 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 September 11, 2025.

When flying from Philadelphia to Santiago de los Caballeros, 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 30% versus a flight at noon.

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 September 11, 2025.
Peruse reviews from past customers who have flown with American Airlines, Spirit Airlines, and Frontier from Philadelphia to Santiago de los Caballeros to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Spirit Airlines
6.3
Okay
8,023 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Frontier
5.8
Fair
3,177 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Philadelphia 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.

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

    Departing from Philadelphia to Santiago de los Caballeros will take you 6h 03m. There are 1440 mi between Philadelphia and Santiago de los Caballeros.

  • What are the cheapest airlines flying from Philadelphia to Santiago de los Caballeros round-trip?

    Currently priced at $178, Spirit Airlines will fly you from Philadelphia to Santiago de los Caballeros and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and American Airlines - these airlines can fly you to your destination from $244 and $459, respectively. Spirit Airlines is currently priced 61% below the average price you’ll pay for this route.

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Philadelphia to Santiago de los Caballeros (average of $347). Flying from Philadelphia to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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 Philadelphia 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 Santo Domingo flights
John F Kennedy Intl to Punta Cana flights
John F Kennedy Intl to Santiago de los Caballeros flights
Newark to Santiago de los Caballeros flights
Newark to Punta Cana flights
Newark to Santo Domingo flights
LaGuardia to Punta Cana flights
LaGuardia to Santo Domingo flights
Dulles Intl to Punta Cana flights
LaGuardia to Santiago de los Caballeros flights
John F Kennedy Intl to Puerto Plata flights
Philadelphia to Punta Cana flights
Reagan-National to Punta Cana flights
Dulles Intl to Santo Domingo flights
Philadelphia to Santo Domingo flights
Reagan-National to Santo Domingo flights
LaGuardia to Puerto Plata flights
Newark to Puerto Plata flights
Pittsburgh to Punta Cana flights
Philadelphia to Puerto Plata flights
Dulles Intl to Santiago de los Caballeros flights
Harrisburg to Punta Cana flights
Dulles Intl to Puerto Plata flights
Reagan-National to Puerto Plata flights
Reagan-National to Santiago de los Caballeros flights
John F Kennedy Intl to La Romana flights
Allentown to Punta Cana flights
Allentown to Santo Domingo flights
Allentown to Santiago de los Caballeros flights
Pittsburgh to Santo Domingo flights
Scranton to Punta Cana flights
Allentown to Puerto Plata flights
Harrisburg to Santo Domingo flights
Pittsburgh to Puerto Plata flights
Pittsburgh to Santiago de los Caballeros flights
Dulles Intl to La Romana flights
Scranton to Santo Domingo flights
LaGuardia to Nagua flights
State College to Santo Domingo flights
State College to Punta Cana flights
Harrisburg to Santiago de los Caballeros flights
Harrisburg to Puerto Plata flights
Newark to Nagua flights
Philadelphia to Nagua flights
Reagan-National to Nagua flights
Dulles Intl to Nagua flights
Williamsport to Punta Cana flights

Top 3 airlines flying from Philadelphia to Santiago de los Caballeros

Discover the top 3 airlines that operate flights from Philadelphia 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$178Average$407FlexibilityNo cancel feeOn-time65%
FrontierCheapest$244Average$403FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$459Average$600FlexibilityNo cancel feeOn-time71%

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