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Cheap flights from Philadelphia to Santiago de los Caballeros from $134

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 12/6. 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

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Multiple Airlines Logo
5:45 pm - 2:42 amPHL-STI
7h 57m1 stop
Multiple Airlines Logo
3:43 am - 10:36 pmSTI-PHL
19h 53m1 stop
$302Multiple Airlines
Find Deal
Sat, Dec 6 - Mon, Dec 8
Spirit Airlines Logo
6:00 am - 12:22 pmPHL-STI
5h 22m1 stop
Spirit Airlines Logo
1:17 pm - 11:26 pmSTI-PHL
11h 09m1 stop
$306Spirit Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
8:51 pm - 12:22 pmPHL-STI
14h 31m1 stop
Multiple Airlines Logo
1:17 pm - 11:25 pmSTI-PHL
11h 08m1 stop
$312Multiple Airlines
Find Deal
Thu, Nov 13 - Thu, Nov 20
Multiple Airlines Logo
9:09 pm - 2:42 amPHL-STI
28h 33m1 stop
Multiple Airlines Logo
3:43 am - 2:58 pmSTI-PHL
12h 15m1 stop
$318Multiple Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Multiple Airlines Logo
4:35 pm - 12:22 pmPHL-STI
18h 47m1 stop
Multiple Airlines Logo
3:43 am - 12:36 amSTI-PHL
21h 53m1 stop
$320Multiple Airlines
Find Deal
Wed, Nov 26 - Sun, Dec 7
Multiple Airlines Logo
8:51 pm - 12:22 pmPHL-STI
14h 31m1 stop
Multiple Airlines Logo
1:17 pm - 11:42 pmSTI-PHL
11h 25m1 stop
$322Multiple Airlines
Find Deal
Fri, Nov 14 - Fri, Nov 21
Spirit Airlines Logo
3:10 pm - 12:22 pmPHL-STI
20h 12m1 stop
Spirit Airlines Logo
1:17 pm - 2:15 pmSTI-PHL
25h 58m1 stop
$329Spirit Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 17
Spirit Airlines Logo
8:51 pm - 12:22 pmPHL-STI
14h 31m1 stop
Spirit Airlines Logo
1:17 pm - 11:26 pmSTI-PHL
11h 09m1 stop
$334Spirit Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
Multiple Airlines Logo
4:43 pm - 12:22 pmPHL-STI
18h 39m1 stop
Multiple Airlines Logo
1:17 pm - 10:36 pmSTI-PHL
10h 19m1 stop
$335Multiple Airlines
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Thu, Nov 27 - Wed, Dec 3
JetBlue Logo
7:00 am - 8:57 amPHL-STI
24h 57m1 stop
JetBlue Logo
11:47 am - 10:49 pmSTI-PHL
12h 02m1 stop
$410JetBlue
Find Deal
Sat, Dec 13 - Sat, Dec 20

Spirit Airlines flights from Philadelphia to Santiago de los Caballeros

Our best Spirit Airlines deals on Philadelphia to Santiago de los Caballeros flight tickets
Spirit Airlines
Nov 11
PHL6:00 amPhiladelphia
5h 22m
1 stop
STI12:22 pmSantiago de los Caballeros
Nov 18
STI1:17 pmSantiago de los Caballeros
11h 09m
1 stop
PHL11:26 pmPhiladelphia
$306
Find similar
Spirit Airlines
Nov 12
PHL3:10 pmPhiladelphia
20h 12m
1 stop
STI12:22 pmSantiago de los Caballeros
Nov 17
STI1:17 pmSantiago de los Caballeros
25h 58m
1 stop
PHL2:15 pmPhiladelphia
$329
Find similar
Spirit Airlines
Nov 7
PHL8:51 pmPhiladelphia
14h 31m
1 stop
STI12:22 pmSantiago de los Caballeros
Nov 11
STI1:17 pmSantiago de los Caballeros
11h 09m
1 stop
PHL11:26 pmPhiladelphia
$334
Find similar

United Airlines flights from Philadelphia to Santiago de los Caballeros

Our best United Airlines deals on Philadelphia to Santiago de los Caballeros flight tickets
United Airlines
Oct 20
PHL10:32 amPhiladelphia
15h 14m
2 stops
STI1:46 amSantiago de los Caballeros
Dec 6
STI6:00 amSantiago de los Caballeros
12h 39m
2 stops
PHL5:39 pmPhiladelphia
$551
Find similar
United Airlines
Oct 18
PHL7:58 pmPhiladelphia
19h 14m
2 stops
STI3:12 pmSantiago de los Caballeros
Nov 1
STI5:00 amSantiago de los Caballeros
16h 21m
2 stops
PHL9:21 pmPhiladelphia
$553
Find similar
United Airlines
Oct 21
PHL1:05 pmPhiladelphia
12h 41m
2 stops
STI1:46 amSantiago de los Caballeros
Nov 3
STI4:00 pmSantiago de los Caballeros
18h 46m
2 stops
PHL9:46 amPhiladelphia
$588
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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 October 16, 2025.
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

Sat 12/6

5:45 pm-2:42 am

1 stop7h 57m

Santiago de los Caballeros

Mon 12/8

3:43 am-10:36 pm

1 stop19h 53m

$302

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 11/11

6:00 am-12:22 pm

1 stop5h 22m

Santiago de los Caballeros

Tue 11/18

1:17 pm-11:26 pm

1 stop11h 09m

$306

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 11/13

8:51 pm-12:22 pm

1 stop14h 31m

Santiago de los Caballeros

Thu 11/20

1:17 pm-11:25 pm

1 stop11h 08m

$312

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 12/4

9:09 pm-2:42 am

1 stop28h 33m

Santiago de los Caballeros

Mon 12/8

3:43 am-2:58 pm

1 stop12h 15m

$318

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 11/26

4:35 pm-12:22 pm

1 stop18h 47m

Santiago de los Caballeros

Sun 12/7

3:43 am-12:36 am

1 stop21h 53m

$320

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 11/14

8:51 pm-12:22 pm

1 stop14h 31m

Santiago de los Caballeros

Fri 11/21

1:17 pm-11:42 pm

1 stop11h 25m

$322

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 11/12

3:10 pm-12:22 pm

1 stop20h 12m

Santiago de los Caballeros

Mon 11/17

1:17 pm-2:15 pm

1 stop25h 58m

$329

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Fri 11/7

8:51 pm-12:22 pm

1 stop14h 31m

Santiago de los Caballeros

Tue 11/11

1:17 pm-11:26 pm

1 stop11h 09m

$334

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 11/27

4:43 pm-12:22 pm

1 stop18h 39m

Santiago de los Caballeros

Wed 12/3

1:17 pm-10:36 pm

1 stop10h 19m

$335

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 12/13

7:00 am-8:57 am

1 stop24h 57m

Santiago de los Caballeros

Sat 12/20

11:47 am-10:49 pm

1 stop12h 02m

$410

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 cheapest month to fly to Santiago de los Caballeros?

The cheapest month to fly to Santiago de los Caballeros from Philadelphia is in February. Flight prices, which tend to average around $353, 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 February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $376.

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 Tuesday when prices can be found for as low as $427. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Santiago de los Caballeros for around $755.

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

Our data shows that the cheapest Philadelphia to Santiago de los Caballeros flights are usually those with departure times in the evening. Our users have found flights to Santiago de los Caballeros in the evening for as low as $437. In the morning is when there is more demand to fly to Santiago de los Caballeros, so prices are often more expensive at around $786 per ticket.

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 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 $468 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 $387 on momondo.

What cabin class options are available on Philadelphia to Santiago de los Caballeros flights?

There is only 1 cabin class available to choose from on Philadelphia to Santiago de los Caballeros flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of October 2025, prices for Philadelphia to Santiago de los Caballeros flights are approximately 36% cheaper 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

$297

Fastest flight time

3h 32m

Direct flights

Mon 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 $297. The best round-trip flight deal from Philadelphia to Santiago de los Caballeros found on momondo in the last 72 hours is $650.
The fastest flight from Philadelphia to Santiago de los Caballeros takes 3h 32m
Direct flights go from Philadelphia to Santiago de los Caballeros on Monday and Friday. The only airline offering direct flights is Frontier.
There is 1 airport near Santiago de los Caballeros: Santiago de los Caballeros (STI)
Search flight deals

  • 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 32m.

  • 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
6.3
8,099 reviews
Search Spirit Airlines flights
FrontierPriceFrom $270Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
American AirlinesPriceFrom $454Free CancellationRating
7.2
11,040 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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