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Santiago de los Caballeros

$134+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STI
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Santiago de los Caballeros are usually found in February or May, booked 61 days in advance, depart on a Tuesday or Wednesday 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$281
(Priceline)

One-way from

$134
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$408

Good round-trip deal

$706 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Philadelphia-Santiago de los Caballeros flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Santiago de los Caballeros flights.
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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. 14% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Philadelphia to Santiago de los Caballeros.
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Price to beat on a one-way flight from Philadelphia to Santiago de los Caballeros.
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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 October 28, 2025.

This Priceline deal was found by Cheapflights users on 10/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:25 amPHL - STI
1 stop5h 57mSpirit Airlines
Tue 12/21:17 pmSTI - PHL
1 stop11h 29mSpirit Airlines
Deal found 10/26$281
This Expedia deal was found by Cheapflights users on 10/27. 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.
Fri 11/78:51 pmPHL - STI
1 stop14h 31mSpirit Airlines
Wed 11/121:17 pmSTI - PHL
1 stop11h 09mSpirit Airlines
Deal found 10/27$287
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:58 pmPHL - STI
1 stop6h 44mSpirit Airlines
Mon 12/83:43 amSTI - PHL
1 stop6h 34mSpirit Airlines
Deal found 10/27$299
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:00 pmPHL - STI
1 stop9h 42mSpirit Airlines
Wed 12/103:43 amSTI - PHL
1 stop6h 34mSpirit Airlines
Deal found 10/27$314
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/113:10 pmPHL - STI
1 stop20h 12mSpirit Airlines
Sat 11/151:17 pmSTI - PHL
1 stop11h 09mSpirit Airlines
Deal found 10/28$326
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/45:45 pmPHL - STI
1 stop7h 57mMultiple Airlines
Sat 12/63:43 amSTI - PHL
1 stop12h 15mMultiple Airlines
Deal found 10/26$329
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Fri 11/146:00 amPHL - STI
1 stop5h 22mSpirit Airlines
Fri 11/211:17 pmSTI - PHL
1 stop11h 29mSpirit Airlines
Deal found 10/27$332
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/274:43 pmPHL - STI
1 stop18h 39mMultiple Airlines
Tue 12/21:17 pmSTI - PHL
1 stop10h 19mMultiple Airlines
Deal found 10/27$336
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 11/86:00 amPHL - STI
1 stop5h 22mSpirit Airlines
Tue 11/111:17 pmSTI - PHL
1 stop11h 09mSpirit Airlines
Deal found 10/27$339
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Mon 11/106:00 amPHL - STI
1 stop5h 22mSpirit Airlines
Tue 11/111:17 pmSTI - PHL
1 stop11h 09mSpirit Airlines
Deal found 10/27$340
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/248:54 pmPHL - STI
1 stop14h 28mMultiple Airlines
Mon 12/11:17 pmSTI - PHL
1 stop26h 41mMultiple Airlines
Deal found 10/28$342

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 October 28, 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 12/18

4:15 pm-10:37 am

1 stop17h 22m

Santiago de los Caballeros

Thu 1/8

12:12 pm-11:34 pm

1 stop12h 22m

$402

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 12/1

3:00 pm-12:22 pm

3 stops20h 22m

Santiago de los Caballeros

Thu 12/4

3:43 am-12:29 pm

2 stops9h 46m

$410

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 2/22

5:15 am-5:06 pm

1 stop10h 51m

Santiago de los Caballeros

Thu 2/26

6:18 pm-12:32 am

1 stop7h 14m

$425

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 1/9

5:15 am-5:06 pm

1 stop10h 51m

Santiago de los Caballeros

Sat 2/14

6:18 pm-9:46 am

1 stop16h 28m

$428

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 2/24

6:00 am-12:59 pm

1 stop5h 59m

Santiago de los Caballeros

Thu 3/5

7:00 am-3:52 pm

1 stop9h 52m

$438

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 3/16

6:00 am-11:59 am

1 stop5h 59m

Santiago de los Caballeros

Mon 3/23

6:00 am-3:52 pm

1 stop9h 52m

$438

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 2/24

4:48 pm-4:55 am

1 stop11h 07m

Santiago de los Caballeros

Fri 3/6

7:00 am-3:52 pm

1 stop9h 52m

$438

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 11/25

6:00 am-12:22 pm

3 stops29h 22m

Santiago de los Caballeros

Tue 12/2

1:17 pm-11:03 pm

2 stops10h 46m

$456

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 12/1

1:45 pm-10:56 pm

1 stop8h 11m

Santiago de los Caballeros

Fri 12/5

6:00 am-9:31 pm

1 stop16h 31m

$466

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 11/28

6:41 pm-12:22 pm

2 stops16h 41m

Santiago de los Caballeros

Wed 12/3

1:17 pm-12:26 am

2 stops12h 09m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 21 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust 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 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 October 24, 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 October 28, 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 40% 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 October 28, 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
11,033 reviews

Boarding

7.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

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
11,033 reviews
American Airlines
7.2
Good
11,033 reviews

Boarding

7.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

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
8,112 reviews
American Airlines
7.2
Good
11,033 reviews

Boarding

7.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

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
3,122 reviews
American Airlines
7.2
Good
11,033 reviews

Boarding

7.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

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 17h 22m. There are 1440 mi between Philadelphia and Santiago de los Caballeros. This flight may include one or multiple stops.

  • 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 62% below the average price you’ll pay for this route.

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

    The cheapest flight price from Philadelphia to Santiago de los Caballeros is $152. On average you can expect to pay $497. The most popular route, (Philadelphia - Santiago de los Caballeros), can usually be booked for $287.

  • 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.
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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$178Average$407FlexibilityNo cancel feeOn-time65%
FrontierCheapest$286Average$556FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$454Average$605FlexibilityNo cancel feeOn-time71%

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