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Santiago de los Caballeros

$127+ 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Philadelphia to Santiago de los Caballeros with Cheapflights

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Cheapflights Tip: The best prices from Philadelphia to Santiago de los Caballeros are usually found in October or February, booked 61 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 December 12, 2025.

This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:53 pmPHL - STI
1 stop6h 49mSpirit Airlines
Sun 12/143:43 amSTI - PHL
1 stop6h 34mSpirit Airlines
Deal found 12/10$338
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Wed 12/316:36 pmPHL - STI
2 stops31h 06mMultiple Airlines
Thu 1/154:40 pmSTI - PHL
1 stop8h 10mMultiple Airlines
Deal found 12/11$360
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Tue 12/305:10 amPHL - STI
2 stops20h 32mMultiple Airlines
Tue 1/134:40 pmSTI - PHL
1 stop19h 34mMultiple Airlines
Deal found 12/9$424
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 12/134:00 pmPHL - STI
1 stop9h 42mSpirit Airlines
Fri 12/193:43 amSTI - PHL
1 stop6h 24mSpirit Airlines
Deal found 12/10$439
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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.
Sun 12/146:53 pmPHL - STI
1 stop6h 49mSpirit Airlines
Mon 12/293:43 amSTI - PHL
1 stop6h 24mSpirit Airlines
Deal found 12/11$449
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 12/156:53 pmPHL - STI
1 stop6h 49mSpirit Airlines
Sun 12/213:43 amSTI - PHL
1 stop6h 24mSpirit Airlines
Deal found 12/11$459
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 amPHL - STI
Nonstop3h 32mFrontier
Sun 1/252:04 pmSTI - PHL
Nonstop3h 48mFrontier
Deal found 12/11$462
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:53 pmPHL - STI
1 stop6h 49mMultiple Airlines
Thu 1/112:07 pmSTI - PHL
Nonstop3h 49mMultiple Airlines
Deal found 12/10$477
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Fri 12/126:53 pmPHL - STI
1 stop6h 49mMultiple Airlines
Sun 12/143:43 amSTI - PHL
1 stop21h 53mMultiple Airlines
Deal found 12/11$492

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$302
(KAYAK)

One-way from

$127
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$706

Good round-trip deal

$567 or less

Good one-way deal

$291 or less
Provider with most accurate pricing for Philadelphia-Santiago de los Caballeros flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Santiago de los Caballeros flights.
Search Deals
From Philadelphia to Santiago de los Caballeros
Search Deals
One-way flight from Philadelphia to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to Santiago de los Caballeros.
Search Deals
Price to beat on a one-way flight from Philadelphia to Santiago de los Caballeros.
Search Deals

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 December 12, 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

Wed 1/14

1:40 pm-3:33 pm

1 stop24h 53m

Santiago de los Caballeros

Fri 1/23

4:40 pm-11:59 pm

1 stop8h 19m

$311

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 1/10

6:11 pm-3:33 pm

1 stop20h 22m

Santiago de los Caballeros

Sat 1/17

4:40 pm-11:50 pm

1 stop8h 10m

$314

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 1/30

6:00 am-3:33 pm

1 stop8h 33m

Santiago de los Caballeros

Mon 2/2

4:40 pm-11:14 am

1 stop19h 34m

$317

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 1/25

6:00 am-3:33 pm

1 stop8h 33m

Santiago de los Caballeros

Sun 2/8

1:54 pm-4:42 pm

Nonstop3h 48m

$322

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 1/29

7:04 pm-3:33 pm

2 stops19h 29m

Santiago de los Caballeros

Thu 2/5

4:40 pm-11:50 pm

1 stop8h 10m

$326

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 2/19

12:28 pm-3:35 pm

2 stops26h 07m

Santiago de los Caballeros

Tue 2/24

4:40 pm-2:56 pm

1 stop23h 16m

$329

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 1/24

7:00 am-3:33 pm

1 stop7h 33m

Santiago de los Caballeros

Sun 2/1

2:04 pm-4:52 pm

Nonstop3h 48m

$332

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 1/23

6:00 am-3:33 pm

1 stop8h 33m

Santiago de los Caballeros

Sun 2/1

4:40 pm-11:18 am

2 stops19h 38m

$341

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 1/29

6:00 am-3:33 pm

1 stop8h 33m

Santiago de los Caballeros

Thu 2/5

4:40 pm-7:48 pm

3 stops28h 08m

$370

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 12/30

6:05 pm-2:42 am

1 stop7h 37m

Santiago de los Caballeros

Tue 1/13

4:40 pm-11:14 am

1 stop19h 34m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 20 results
1
2

Compare providers for flights from Philadelphia to Santiago de los Caballeros

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 Philadelphia to Santiago de los Caballeros in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust 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 Philadelphia-Santiago de los Caballeros flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Santiago de los Caballeros flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Philadelphia-Santiago de los Caballeros flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Santiago de los Caballeros 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 Philadelphia-Santiago de los Caballeros 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 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 December 5, 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, July is the cheapest month in which you can book a flight from Philadelphia to Santiago de los Caballeros (average of $178). Flying from Philadelphia to Santiago de los Caballeros in August is currently the most expensive (average of $256). 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 December 12, 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 42% versus a flight in the morning.

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 December 12, 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
11,048 reviews

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,048 reviews
American Airlines
7.2
Good
11,048 reviews

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Spirit Airlines
6.3
Okay
8,174 reviews
American Airlines
7.2
Good
11,048 reviews

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Frontier
5.8
Fair
3,084 reviews
American Airlines
7.2
Good
11,048 reviews

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 popular is this Philadelphia to Santiago de los Caballeros flight route?

    Within the past month, 1 users have taken a look at flights from Philadelphia to Santiago de los Caballeros.

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

    Departing from Philadelphia to Santiago de los Caballeros will take you 20h 22m. 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 $286 and $454, respectively. Spirit Airlines is currently priced 61% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $107. Users have also found prices from $131 and $255 on Spirit Airlines and American Airlines, respectively.

  • What are the cheapest flights from Philadelphia to Santiago de los Caballeros?

    The cheapest flight price from Philadelphia to Santiago de los Caballeros is $148. On average you can expect to pay $598. The most popular route, (Philadelphia - Santiago de los Caballeros), can usually be booked for $279.

  • 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, July is the cheapest month in which you can book a flight from Philadelphia to Santiago de los Caballeros (average of $178). Flying from Philadelphia to Santiago de los Caballeros in August is currently the most expensive (average of $256). 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
Newark to Santo Domingo flights
John F Kennedy Intl to Punta Cana flights
Newark to Punta Cana flights
John F Kennedy Intl to Santiago de los Caballeros flights
Newark to Santiago de los Caballeros flights
LaGuardia to Santo Domingo flights
LaGuardia to Punta Cana flights
Dulles Intl to Punta Cana flights
LaGuardia to Santiago de los Caballeros flights
John F Kennedy Intl to Puerto Plata flights
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Dulles Intl to Santo Domingo flights
LaGuardia to Puerto Plata flights
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Pittsburgh to Punta Cana flights
Dulles Intl to Santiago de los Caballeros flights
Philadelphia to Puerto Plata flights
Dulles Intl to Puerto Plata flights
Reagan-National to Puerto Plata flights
Reagan-National to Santiago de los Caballeros flights
Harrisburg to Punta Cana flights
Allentown to Punta Cana flights
John F Kennedy Intl to La Romana flights
Harrisburg to Santo Domingo flights
Allentown to Santo Domingo flights
Pittsburgh to Santiago de los Caballeros flights
Pittsburgh to Puerto Plata flights
Harrisburg to Puerto Plata flights
Scranton to Punta Cana flights
Pittsburgh to Santo Domingo flights
Newark to Nagua flights
Scranton to Santo Domingo flights
Allentown to Santiago de los Caballeros flights
LaGuardia to Nagua flights
State College to Punta Cana flights
Harrisburg to Santiago de los Caballeros flights
Dulles Intl to Nagua flights
Reagan-National to Nagua flights
State College to Santo Domingo flights
Allentown to Puerto Plata flights
Philadelphia to Nagua flights
Dulles Intl to La Romana 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$178Average$398FlexibilityNo cancel feeOn-time65%
FrontierCheapest$300Average$565FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$454Average$616FlexibilityNo cancel feeOn-time71%

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