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

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $112. Users have also found prices from $161 and $384 on Frontier and American Airlines, respectively.

What is the cheapest day to fly from Philadelphia to Santiago de los Caballeros?

Travelers seeking maximum savings on their Philadelphia to Santiago de los Caballeros flight should consider departing on Sunday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

What are the most popular airlines that fly from Philadelphia to Santiago de los Caballeros?

The most popular airlines flying from Philadelphia to Santiago de los Caballeros are American Airlines, Frontier and Spirit Airlines. Something to consider prior to booking your flight.

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

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Santiago de los Caballeros. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Philadelphia to Santiago de los Caballeros?

Our data shows that October tends to be the cheapest month to fly to Santiago de los Caballeros from Philadelphia. Users have commonly found prices around $466 for the month, but tickets can be as low as $144. Due to multiple factors, prepare for potentially higher prices in November.

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.

$112+ Flights from Philadelphia to Santiago de los Caballeros

Q: How far in advance should I book a flight from Philadelphia to Santiago de los Caballeros?

To save up to 127% on this flight, we recommend booking at least 30 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Philadelphia to Santiago de los Caballeros from $416 1-2 weeks out and tickets from $601 for flights departing within the next 72 hours.

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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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 Thursday and return on a Monday

Cheap flight deals from Philadelphia to Santiago de los Caballeros

Round-trip from	$270 (FlightHub)
One-way from	$112 (CheapOair)
Popular in	November
Cheapest in	October
Average price	$459

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. 11% potential increase in price ($62 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in July 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 julio 30, 2025.

jue. 9/255:25 amPHL - STI

1 stop5h 40mSpirit Airlines

mar. 10/712:10 pmSTI - PHL

1 stop11h 37mSpirit Airlines

Deal found 7/28

$270

lun. 8/186:00 amPHL - STI

1 stop6h 51mMultiple Airlines

mié. 9/1012:10 pmSTI - PHL

1 stop11h 37mMultiple Airlines

Deal found 7/29

$333

mar. 8/128:05 pmPHL - STI

1 stop16h 46mFrontier

vie. 8/152:06 pmSTI - PHL

1 stop11h 39mFrontier

Deal found 7/29

$389

Best flights from Philadelphia to Santiago de los Caballeros
Discover carefully curated flight deals from Philadelphia to Santiago de los Caballeros that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2025.

jue. 9/255:25 amPHL - STI

1 stop5h 40mSpirit Airlines

mar. 10/712:10 pmSTI - PHL

1 stop11h 37mSpirit Airlines

Deal found 7/28

$270

lun. 8/186:00 amPHL - STI

1 stop6h 51mMultiple Airlines

mié. 9/1012:10 pmSTI - PHL

1 stop11h 37mMultiple Airlines

Deal found 7/29

$333

jue. 8/78:05 pmPHL - STI

1 stop16h 46mFrontier

lun. 8/112:06 pmSTI - PHL

1 stop26h 54mFrontier

Deal found 7/30

$384

Last-minute flights from Philadelphia to Santiago de los Caballeros
Discover last-minute flight deals from Philadelphia to Santiago de los Caballeros. Data last updated julio 30, 2025 and is based on user searches.

jue. 8/78:05 pmPHL - STI

1 stop16h 46mFrontier

lun. 8/112:06 pmSTI - PHL

1 stop26h 54mFrontier

Deal found 7/30

$384

jue. 8/78:05 pmPHL - STI

1 stop16h 46mMultiple Airlines

vie. 8/2210:20 amSTI - PHL

1 stop13h 00mMultiple Airlines

Deal found 7/28

$401

sáb. 8/95:21 pmPHL - STI

1 stop16h 29mSpirit Airlines

sáb. 8/2310:20 amSTI - PHL

1 stop13h 00mSpirit Airlines

Deal found 7/29

$388

sáb. 8/95:40 pmPHL - STI

2 stops22h 22mJetBlue

sáb. 8/232:50 pmSTI - PHL

2 stops20h 17mJetBlue

Deal found 7/29

$578

lun. 8/186:00 amPHL - STI

1 stop6h 51mMultiple Airlines

mié. 9/1012:10 pmSTI - PHL

1 stop11h 37mMultiple Airlines

Deal found 7/29

$333

sáb. 8/308:41 pmPHL - STI

1 stop12h 34mSpirit Airlines

vie. 9/512:10 pmSTI - PHL

1 stop12h 47mSpirit Airlines

Deal found 7/29

$296

One-way flights from Philadelphia to Santiago de los Caballeros
Search for one-way flight options from Philadelphia to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated julio 30, 2025.

mar. 8/198:41 pmPHL - STI

1 stop12h 34mSpirit Airlines

Deal found 7/29

$112

mar. 8/58:05 pmPHL - STI

1 stop16h 46mFrontier

Deal found 7/29

$161

lun. 8/49:12 pmPHL - STI

2 stops39h 39mMultiple Airlines

Deal found 7/29

$247

sáb. 8/211:24 amPHL - STI

1 stop9h 55mAmerican Airlines

Deal found 7/29

$384

Cheapflights Fare Finder

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

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

jue. 9/25

5:25 am-11:05 am

1 stop5h 40m

Santiago de los Caballeros

mar. 10/7

12:10 pm-11:47 pm

1 stop11h 37m

$270

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

lun. 8/18

6:00 am-12:51 pm

1 stop6h 51m

Santiago de los Caballeros

mié. 9/10

12:10 pm-11:47 pm

1 stop11h 37m

$333

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

jue. 8/7

8:05 pm-12:51 pm

1 stop16h 46m

Santiago de los Caballeros

lun. 8/11

2:06 pm-5:00 pm

1 stop26h 54m

$384

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

mar. 8/19

8:41 pm-9:15 am

1 stop12h 34m

$112

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

mar. 8/5

8:05 pm-12:51 pm

1 stop16h 46m

$161

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

lun. 8/4

9:12 pm-12:51 pm

2 stops39h 39m

$247

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

sáb. 8/2

11:24 am-9:19 pm

1 stop9h 55m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 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 $603). 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?

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

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

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Spirit Airlines

6.3

Okay

8,048 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Frontier

5.9

Fair

3,237 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Related info for your journey

What are the cheapest airlines flying from Philadelphia to Santiago de los Caballeros round-trip?
Currently priced at $270, 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. Check Cheapflights for deals on Frontier for as low as $384. Spirit Airlines is currently priced 42% 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 Spirit Airlines. According to our data, you can fly for as low as $112. Users have also found prices from $161 and $384 on Frontier and American Airlines, respectively.
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 $603). 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

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Philadelphia to Santiago de los Caballeros

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$178	Average$460	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$234	Average$404	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$454	Average$593	FlexibilityNo cancel fee	On-time71%

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$112+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Philadelphia to Santiago de los Caballeros with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 Thursday and return on a Monday

Cheap flight deals from Philadelphia to Santiago de los Caballeros

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Philadelphia to Santiago de los Caballeros

Cheapest flights from Philadelphia to Santiago de los CaballerosExplore 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 julio 30, 2025.

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 julio 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Santiago de los Caballeros that are best for you.

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.

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 July 25, 2025.

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

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 julio 30, 2025.

Reviews of airlines servicing Santiago de los Caballeros

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.

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

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

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

How can I 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?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Philadelphia to Santiago de los Caballeros

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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 julio 30, 2025.