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$129+ 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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
STI — PHL
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$299
(Kiwi.com)

One-way from

$129
(Frontier)

Popular in

July

Cheapest in

March

Average price

$381
Provider with most accurate pricing for Santiago de los Caballeros-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Santiago de los Caballeros-Philadelphia flights.
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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. 14% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 5, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/173:43 amSTI - PHL
1 stop9h 42mMultiple Airlines
Thu 1/15:30 amPHL - STI
1 stop20h 12mMultiple Airlines
Deal found 11/3$314
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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.
Tue 11/181:17 pmSTI - PHL
1 stop11h 09mSpirit Airlines
Tue 11/255:25 amPHL - STI
1 stop5h 57mSpirit Airlines
Deal found 11/3$319
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/173:43 amSTI - PHL
1 stop9h 42mMultiple Airlines
Mon 1/56:05 pmPHL - STI
1 stop7h 37mMultiple Airlines
Deal found 11/3$333
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/183:43 amSTI - PHL
1 stop16h 35mMultiple Airlines
Tue 1/65:40 pmPHL - STI
1 stop8h 02mMultiple Airlines
Deal found 11/3$338
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/303:43 amSTI - PHL
1 stop20h 55mMultiple Airlines
Thu 1/11:35 pmPHL - STI
1 stop12h 07mMultiple Airlines
Deal found 11/4$346
This Trip.com deal was found by Cheapflights users on 11/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/193:43 amSTI - PHL
1 stop9h 22mMultiple Airlines
Sun 1/46:20 amPHL - STI
Nonstop3h 32mMultiple Airlines
Deal found 11/3$354
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/173:43 amSTI - PHL
1 stop9h 42mMultiple Airlines
Fri 1/26:05 pmPHL - STI
1 stop7h 37mMultiple Airlines
Deal found 11/3$356
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/173:43 amSTI - PHL
1 stop9h 42mMultiple Airlines
Sat 1/36:05 pmPHL - STI
1 stop7h 37mMultiple Airlines
Deal found 11/3$360
This CheapOair deal was found by Cheapflights users on 11/4. 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.
Thu 12/410:11 amSTI - PHL
1 stop14h 02mJetBlue
Thu 12/117:00 amPHL - STI
1 stop24h 57mJetBlue
Deal found 11/4$363
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/183:43 amSTI - PHL
1 stop16h 35mMultiple Airlines
Fri 1/26:05 pmPHL - STI
1 stop7h 37mMultiple Airlines
Deal found 11/3$380

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 November 5, 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 12/19

3:43 am-12:05 pm

1 stop9h 22m

Philadelphia

Mon 1/5

6:05 pm-2:42 am

1 stop7h 37m

$333

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Thu 12/18

3:43 am-7:18 pm

1 stop16h 35m

Philadelphia

Wed 1/7

5:40 pm-2:42 am

1 stop8h 02m

$338

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Tue 12/30

3:43 am-8:07 pm

2 stops17h 24m

Philadelphia

Thu 1/1

5:30 am-2:42 am

1 stop20h 12m

$350

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Thu 12/4

10:11 am-11:13 pm

1 stop14h 02m

Philadelphia

Thu 12/11

7:00 am-8:57 am

1 stop24h 57m

$363

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Mon 1/12

6:18 pm-9:46 am

1 stop16h 28m

Philadelphia

Tue 1/27

5:15 am-5:06 pm

1 stop10h 51m

$372

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Sun 12/21

3:43 am-7:18 pm

1 stop16h 35m

Philadelphia

Fri 1/2

6:05 pm-2:42 am

1 stop7h 37m

$380

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Tue 1/27

4:40 pm-9:20 pm

3 stops29h 40m

Philadelphia

Fri 1/30

8:00 am-3:33 pm

1 stop6h 33m

$405

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Mon 12/22

11:25 am-10:49 pm

1 stop12h 24m

Philadelphia

Fri 1/2

7:05 pm-4:50 am

1 stop8h 45m

$406

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Tue 11/11

1:17 pm-2:15 pm

1 stop25h 58m

Philadelphia

Thu 11/13

12:21 pm-12:22 pm

2 stops23h 01m

$407

Santiago de los CaballerosPhiladelphia

STI - PHL

STIPHL

Santiago de los Caballeros

Sun 12/28

3:43 am-7:18 pm

1 stop16h 35m

Philadelphia

Fri 1/9

5:40 pm-5:06 pm

1 stop22h 26m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 23 results
1
2
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Compare providers for flights from Santiago de los Caballeros to Philadelphia

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 Santiago de los Caballeros to Philadelphia in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Santiago de los Caballeros-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Santiago de los Caballeros-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Santiago de los Caballeros-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santiago de los Caballeros-Philadelphia 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 Santiago de los Caballeros-Philadelphia 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 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, September is the cheapest month in which you can book a flight from Santiago de los Caballeros to Philadelphia (average of $163). Flying from Santiago de los Caballeros to Philadelphia in May is currently the most expensive (average of $191). 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 November 5, 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 40% versus a flight in the morning.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated November 5, 2025.
See what other customers who have flown with American Airlines from Santiago de los Caballeros to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,042 reviews

Crew

8.0

Overall

7.2

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
American Airlines
7.2
Good
11,042 reviews
American Airlines
7.2
Good
11,042 reviews

Crew

8.0

Overall

7.2

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.

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 14h 02m. Fly via JetBlue or Spirit Airlines to get the fastest option. Santiago de los Caballeros and Philadelphia are separated by a distance of 1440 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Santiago de los Caballeros to Philadelphia round-trip?

    Cheapflights users have booked flights from Santiago de los Caballeros to Philadelphia round-trip from $501.

  • 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, September is the cheapest month in which you can book a flight from Santiago de los Caballeros to Philadelphia (average of $163). Flying from Santiago de los Caballeros to Philadelphia in May is currently the most expensive (average of $191). 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
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester
Exton

Browse thousands of different options on Cheapflights for your next trip

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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.
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Puerto Plata to LaGuardia flights
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Punta Cana to Reagan-National flights
Santiago de los Caballeros to Dulles Intl flights
Santiago de los Caballeros to Reagan-National flights
Santo Domingo to Pittsburgh flights
Punta Cana to Pittsburgh flights
Santo Domingo to Allentown flights
La Romana to John F Kennedy Intl flights
Santo Domingo to Scranton flights
Nagua to LaGuardia flights
Santiago de los Caballeros to Pittsburgh flights

Top airline flying from Santiago de los Caballeros to Philadelphia

Discover the top airline that operate flights from Santiago de los Caballeros to Philadelphia. 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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$548FlexibilityNo cancel feeOn-time71%

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