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Santiago de los Caballeros

$207+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STI
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Find cheap flights from Philadelphia to Santiago de los Caballeros with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Philadelphia to Santiago de los Caballeros are usually found in September or January, booked 52 days in advance, depart on a Wednesday or Monday and return on a Wednesday

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 July 25, 2026.

This American Airlines deal was found by Cheapflights users on 7/22. 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.
Tue 11/1011:22 am
PHL
-
STI
Nonstop3h 41m
American Airlines
Tue 2/232:32 pm
STI
-
PHL
Nonstop3h 48m
American Airlines
Deal found 7/22$447
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Thu 8/208:30 am
PHL
-
STI
Nonstop3h 52m
American Airlines
Wed 9/303:15 pm
STI
-
PHL
1 stop7h 45m
American Airlines
Deal found 7/24$450
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Thu 10/155:00 am
PHL
-
STI
1 stop9h 12m
American Airlines
Thu 10/222:18 pm
STI
-
PHL
Nonstop3h 52m
American Airlines
Deal found 7/23$452
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Tue 9/18:30 am
PHL
-
STI
Nonstop3h 52m
American Airlines
Tue 9/293:15 pm
STI
-
PHL
2 stops17h 00m
American Airlines
Deal found 7/24$453
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Tue 11/1711:22 am
PHL
-
STI
Nonstop3h 41m
American Airlines
Tue 12/15:03 pm
STI
-
PHL
Nonstop3h 55m
American Airlines
Deal found 7/23$455
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 11/1011:22 am
PHL
-
STI
Nonstop3h 41m
American Airlines
Tue 12/82:32 pm
STI
-
PHL
Nonstop3h 48m
American Airlines
Deal found 7/25$456
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 8/188:30 am
PHL
-
STI
Nonstop3h 52m
American Airlines
Tue 9/13:35 pm
STI
-
PHL
1 stop9h 24m
American Airlines
Deal found 7/25$457
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 10/85:00 am
PHL
-
STI
1 stop9h 12m
American Airlines
Thu 10/292:18 pm
STI
-
PHL
Nonstop3h 52m
American Airlines
Deal found 7/25$461
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 11/177:00 am
PHL
-
STI
1 stop8h 08m
American Airlines
Tue 12/152:32 pm
STI
-
PHL
Nonstop3h 48m
American Airlines
Deal found 7/25$462

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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$447
(American Airlines)

One-way from

$207
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$629

Good round-trip deal

$551 or less

Good one-way deal

$253 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. 2% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 25, 2026.
Use the filters below to find and compare flights from Philadelphia to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 11/9

9:45 am-11:51 pm

2 stops13h 06m

Santiago de los Caballeros

Wed 11/11

6:00 am-11:12 pm

2 stops18h 12m

$591

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 10/2

6:55 pm-10:52 pm

3 stops27h 57m

Santiago de los Caballeros

Tue 10/6

2:07 pm-10:11 am

2 stops20h 04m

$653

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 9/11

6:56 pm-10:52 pm

3 stops27h 56m

Santiago de los Caballeros

Fri 9/18

6:00 am-10:02 am

2 stops28h 02m

$653
Quickest round-trip

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 9/1

10:30 am-10:52 pm

2 stops12h 22m

Santiago de los Caballeros

Tue 9/8

6:00 am-6:54 pm

2 stops12h 54m

$654

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 1/10

8:00 pm-11:51 pm

2 stops26h 51m

Santiago de los Caballeros

Mon 2/1

4:00 pm-9:24 am

2 stops18h 24m

$679

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 10/8

6:15 am-10:52 pm

2 stops16h 37m

Santiago de los Caballeros

Thu 10/29

5:00 am-5:42 pm

2 stops12h 42m

$693

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 10/24

6:55 pm-10:51 pm

3 stops27h 56m

Santiago de los Caballeros

Sun 11/1

12:55 pm-9:42 am

2 stops21h 47m

$725

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 11/10

6:25 am-11:51 pm

2 stops16h 26m

Santiago de los Caballeros

Mon 2/22

4:00 pm-10:27 am

2 stops19h 27m

$734

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 10/23

10:40 am-12:57 pm

2 stops26h 17m

Santiago de los Caballeros

Sun 10/25

3:00 pm-9:49 am

2 stops18h 49m

$735

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 11/7

6:46 pm-11:49 am

3 stops40h 03m

Santiago de los Caballeros

Sun 11/15

4:00 pm-9:49 am

2 stops18h 49m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 20 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

Booking 51 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, January is the cheapest month in which you can book a flight from Philadelphia to Santiago de los Caballeros (average of $411). Flying from Philadelphia to Santiago de los Caballeros in December is currently the most expensive (average of $774). 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 July 25, 2026.

When flying from Philadelphia to Santiago de los Caballeros, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Philadelphia to Santiago de los Caballeros?

Airfare is below average for this route at the moment.

Philadelphia to Santiago de los Caballeros flights typically cost between $528 and $718 in November.
The cheapest round-trip price found within the last 5 days was $447 on American Airlines (Nov 10-Feb 23).

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 July 25, 2026.
Peruse reviews from past customers who have flown with American Airlines,JetBlue, andFrontier 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
7.1
Good
11,847 reviews

Boarding

7.5

Overall

7.1

Entertainment

6.8

Comfort

7.2

Food

6.4

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

PHL - LHR

A very good flight. They were not as accommodating in relation to the food and beverage options. Last year on the same flight to London, they offered an additional glass of wine beer or vodka. They also offered extra snacks and were constantly checking on us. This flight, they barely acknowledged our presence. They were not rude just not sociable or readily accessible.
American Airlines
7.1
Good
11,847 reviews
American Airlines
7.1
Good
11,847 reviews

Boarding

7.5

Overall

7.1

Entertainment

6.8

Comfort

7.2

Food

6.4

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

PHL - LHR

A very good flight. They were not as accommodating in relation to the food and beverage options. Last year on the same flight to London, they offered an additional glass of wine beer or vodka. They also offered extra snacks and were constantly checking on us. This flight, they barely acknowledged our presence. They were not rude just not sociable or readily accessible.
JetBlue
7.1
Good
3,024 reviews
American Airlines
7.1
Good
11,847 reviews

Boarding

7.5

Overall

7.1

Entertainment

6.8

Comfort

7.2

Food

6.4

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

PHL - LHR

A very good flight. They were not as accommodating in relation to the food and beverage options. Last year on the same flight to London, they offered an additional glass of wine beer or vodka. They also offered extra snacks and were constantly checking on us. This flight, they barely acknowledged our presence. They were not rude just not sociable or readily accessible.
Frontier
5.6
Fair
2,770 reviews
American Airlines
7.1
Good
11,847 reviews

Boarding

7.5

Overall

7.1

Entertainment

6.8

Comfort

7.2

Food

6.4

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

PHL - LHR

A very good flight. They were not as accommodating in relation to the food and beverage options. Last year on the same flight to London, they offered an additional glass of wine beer or vodka. They also offered extra snacks and were constantly checking on us. This flight, they barely acknowledged our presence. They were not rude just not sociable or readily accessible.

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, 23 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 26h 51m. 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 $370, Frontier will fly you from Philadelphia to Santiago de los Caballeros and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and American Airlines - these airlines can fly you to your destination from $386 and $473, respectively. Frontier is currently priced 32% 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 $152. Users have also found prices from $181 and $265 on JetBlue 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 $204. On average you can expect to pay $486. The most popular route, (Philadelphia - Santiago de los Caballeros), can usually be booked for $421.

  • 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, January is the cheapest month in which you can book a flight from Philadelphia to Santiago de los Caballeros (average of $411). Flying from Philadelphia to Santiago de los Caballeros in December is currently the most expensive (average of $774). 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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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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$370Average$576FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$386Average$546FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$473Average$718FlexibilityNo cancel feeOn-time71%

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