Cheap flights from Philadelphia to Santiago de los Caballeros from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Santiago de los Caballeros departing on 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Philadelphia to Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:20 am - 9:59 am
PHL
-
STI
3h 39mnonstop
Frontier Logo
11:14 am - 3:03 pm
STI
-
PHL
3h 49mnonstop
$412Frontier
Tue, Jul 7 - Tue, Jul 21
Frontier Logo
6:20 am - 9:59 am
PHL
-
STI
3h 39mnonstop
Frontier Logo
11:14 am - 3:03 pm
STI
-
PHL
3h 49mnonstop
$413Frontier
Sun, Jul 5 - Thu, Jul 16
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:09 am - 2:51 pm
STI
-
PHL
3h 42mnonstop
$422Frontier
Tue, Jun 16 - Tue, Jun 30
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:14 am - 3:03 pm
STI
-
PHL
3h 49mnonstop
$424Frontier
Tue, Jun 23 - Tue, Jul 7
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:14 am - 3:03 pm
STI
-
PHL
3h 49mnonstop
$425Frontier
Tue, Jun 23 - Tue, Jul 7
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:09 am - 2:51 pm
STI
-
PHL
3h 42mnonstop
$432Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
6:20 am - 9:59 am
PHL
-
STI
3h 39mnonstop
Frontier Logo
11:14 am - 3:03 pm
STI
-
PHL
3h 49mnonstop
$433Frontier
Tue, Jul 7 - Tue, Aug 4
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:09 am - 2:51 pm
STI
-
PHL
3h 42mnonstop
$434Frontier
Thu, Jun 18 - Tue, Jun 23
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:09 am - 2:51 pm
STI
-
PHL
3h 42mnonstop
$439Frontier
Thu, Jun 18 - Tue, Jun 23
Frontier Logo
6:20 am - 9:54 am
PHL
-
STI
3h 34mnonstop
Frontier Logo
11:09 am - 2:51 pm
STI
-
PHL
3h 42mnonstop
$440Frontier
Tue, Jun 9 - Thu, Jun 18

American Airlines flights from Philadelphia to Santiago de los Caballeros

Our best American Airlines deals on Philadelphia to Santiago de los Caballeros flight tickets
American Airlines
Jun 4
PHL8:25 amPhiladelphia
3h 47m
STI12:12 pmSantiago de los Caballeros
Jun 9
STI1:14 pmSantiago de los Caballeros
3h 52m
PHL5:06 pmPhiladelphia
$499
American Airlines
Jun 4
PHL8:25 amPhiladelphia
3h 47m
STI12:12 pmSantiago de los Caballeros
Jun 16
STI1:14 pmSantiago de los Caballeros
3h 52m
PHL5:06 pmPhiladelphia
$515
American Airlines
May 21
PHL8:26 amPhiladelphia
3h 55m
STI12:21 pmSantiago de los Caballeros
May 28
STI1:21 pmSantiago de los Caballeros
3h 45m
PHL5:06 pmPhiladelphia
$750

Frontier flights from Philadelphia to Santiago de los Caballeros

Our best Frontier deals on Philadelphia to Santiago de los Caballeros flight tickets
Frontier
Jul 7
PHL6:20 amPhiladelphia
3h 39m
STI9:59 amSantiago de los Caballeros
Jul 21
STI11:14 amSantiago de los Caballeros
3h 49m
PHL3:03 pmPhiladelphia
$412
Frontier
Jul 5
PHL6:20 amPhiladelphia
3h 39m
STI9:59 amSantiago de los Caballeros
Jul 16
STI11:14 amSantiago de los Caballeros
3h 49m
PHL3:03 pmPhiladelphia
$413
Frontier
Jun 16
PHL6:20 amPhiladelphia
3h 34m
STI9:54 amSantiago de los Caballeros
Jun 30
STI11:09 amSantiago de los Caballeros
3h 42m
PHL2:51 pmPhiladelphia
$422

momondo 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, momondo users made 832,500 searches. Data last updated May 15, 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

Tue 7/7

6:20 am-9:59 am

Nonstop3h 39m

Santiago de los Caballeros

Tue 7/21

11:14 am-3:03 pm

Nonstop3h 49m

$412

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 7/5

6:20 am-9:59 am

Nonstop3h 39m

Santiago de los Caballeros

Thu 7/16

11:14 am-3:03 pm

Nonstop3h 49m

$413
Quickest round-trip

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 6/16

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Tue 6/30

11:09 am-2:51 pm

Nonstop3h 42m

$422

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 6/23

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Tue 7/7

11:14 am-3:03 pm

Nonstop3h 49m

$424

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 6/23

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Tue 7/7

11:14 am-3:03 pm

Nonstop3h 49m

$425

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 6/9

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Tue 6/16

11:09 am-2:51 pm

Nonstop3h 42m

$432

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 7/7

6:20 am-9:59 am

Nonstop3h 39m

Santiago de los Caballeros

Tue 8/4

11:14 am-3:03 pm

Nonstop3h 49m

$433

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 6/18

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Tue 6/23

11:09 am-2:51 pm

Nonstop3h 42m

$434

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 6/18

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Tue 6/23

11:09 am-2:51 pm

Nonstop3h 42m

$439

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 6/9

6:20 am-9:54 am

Nonstop3h 34m

Santiago de los Caballeros

Thu 6/18

11:09 am-2:51 pm

Nonstop3h 42m

$440

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Santiago de los Caballeros from

How to get the cheapest flight ticket from Philadelphia to Santiago de los Caballeros

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Philadelphia and Santiago de los Caballeros?

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

The cheapest month to fly to Santiago de los Caballeros from Philadelphia is in September. Flight prices, which tend to average around $362, are often lower during this time because this is during the off-season. If you aren’t able to travel to Santiago de los Caballeros during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $408.

What is the cheapest day to depart on your flight to Santiago de los Caballeros?

The cheapest day to depart from Philadelphia to Santiago de los Caballeros is on a Wednesday when prices can be found for as low as $410. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Santiago de los Caballeros for around $695.

What is the cheapest Philadelphia to Santiago de los Caballeros flight route?

Fly from Philadelphia to Santiago de los Caballeros for the best Philadelphia - Santiago de los Caballeros flight prices

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

You are more likely to see cheaper flights to Santiago de los Caballeros from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Santiago de los Caballeros for around $529 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago de los Caballeros from Philadelphia for as low as $420 on momondo.

Can stopping save me money on Philadelphia to Santiago de los Caballeros flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Santiago de los Caballeros.

How have Philadelphia to Santiago de los Caballeros flight prices changed over time?

As of May 2026, prices for Philadelphia to Santiago de los Caballeros flights are approximately 77% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to Santiago de los Caballeros

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Santiago de los Caballeros according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Santiago de los Caballeros (PHL to STI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Santiago de los Caballeros

Best Price Found

$283

Fastest flight time

3h 34m

Direct flights

Mon, Wed and Fri

Airports in Santiago de los Caballeros

1 airport
The best one-way flight to Santiago de los Caballeros from Philadelphia in the past 72 hours is $283. The best round-trip flight deal from Philadelphia to Santiago de los Caballeros found on momondo in the last 72 hours is $541.
The fastest flight from Philadelphia to Santiago de los Caballeros takes 3h 34m
Direct flights go from Philadelphia to Santiago de los Caballeros on Monday, Wednesday and Friday. There are no airlines offering direct flights.
There is 1 airport in Santiago de los Caballeros. From Philadelphia there are direct flights to Santiago de los Caballeros (STI).

Frequently asked questions about flying from Philadelphia to Santiago de los Caballeros

  • How far is Philadelphia to Santiago de los Caballeros by plane?

    The distance between Philadelphia and Santiago de los Caballeros is about 1440.1 mi. By plane, this route typically takes 3h 34m.

  • When did momondo last update prices for flights from Philadelphia Airport to Santiago de los Caballeros Airport?

    Prices for flights from Philadelphia Airport to Santiago de los Caballeros Airport were last updated today.

  • How many operators does momondo search for flights from Philadelphia Airport to Santiago de los Caballeros Airport?

  • How old do you have to be to fly from Philadelphia Airport to Santiago de los Caballeros Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Santiago de los Caballeros Airport.

  • What documentation or ID do you need to fly to Santiago de los Caballeros Airport?

    The travel and health documents required for your trip to Santiago de los Caballeros Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santiago de los Caballeros Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Philadelphia to Santiago de los Caballeros?

  • What is the most popular airline from Philadelphia to Santiago de los Caballeros?

Best airlines flying from Philadelphia to Santiago de los Caballeros

Compare and see reviews for airlines that fly from Philadelphia to Santiago de los Caballeros with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $178Free CancellationRating
6.2
8,625 reviews
Search Spirit Airlines flights
FrontierPriceFrom $317Free CancellationRating
5.6
2,951 reviews
Search Frontier flights
JetBluePriceFrom $411Free CancellationRating
7.1
2,974 reviews
Search JetBlue flights
American AirlinesPriceFrom $454Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Santiago de los Caballeros?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Santiago de los Caballeros from Philadelphia.

Can I find flights from Philadelphia to Santiago de los Caballeros with flexible booking policies on momondo?

All flight searches from Philadelphia to Santiago de los Caballeros on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Philadelphia to Santiago de los Caballeros?

Once all potential Philadelphia to Santiago de los Caballeros flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to Santiago de los Caballeros right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Philadelphia to Santiago de los Caballeros now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Santiago de los Caballeros and let you know when they change.

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1 adult
Sun 6/14
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