Cheap flights from Philadelphia to Santiago de los Caballeros from $123

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 3/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Spirit Airlines Logo
8:06 am - 3:35 pm
PHL
-
STI
6h 29m
1 stop
Spirit Airlines Logo
3:41 pm - 11:50 pm
STI
-
PHL
8h 09m
1 stop
$264Spirit Airlines
Wed, Mar 4 - Wed, Mar 11
Spirit Airlines Logo
6:00 am - 3:35 pm
PHL
-
STI
8h 35m
1 stop
Spirit Airlines Logo
4:40 pm - 8:44 am
STI
-
PHL
17h 04m
1 stop
$270Spirit Airlines
Mon, Feb 23 - Mon, Mar 2
Spirit Airlines Logo
8:06 am - 3:35 pm
PHL
-
STI
6h 29m
1 stop
Spirit Airlines Logo
4:40 pm - 11:50 pm
STI
-
PHL
8h 10m
1 stop
$272Spirit Airlines
Wed, Feb 25 - Thu, Mar 5
Spirit Airlines Logo
6:48 am - 2:23 pm
PHL
-
STI
7h 35m
1 stop
Spirit Airlines Logo
3:40 pm - 11:59 pm
STI
-
PHL
8h 19m
1 stop
$273Spirit Airlines
Sat, Apr 11 - Wed, Apr 15
Spirit Airlines Logo
6:00 am - 2:33 pm
PHL
-
STI
8h 33m
1 stop
Spirit Airlines Logo
3:43 pm - 8:39 am
STI
-
PHL
16h 56m
1 stop
$274Spirit Airlines
Tue, Mar 10 - Tue, Mar 17
Spirit Airlines Logo
6:00 am - 2:33 pm
PHL
-
STI
8h 33m
1 stop
Spirit Airlines Logo
3:43 pm - 11:56 pm
STI
-
PHL
8h 13m
1 stop
$276Spirit Airlines
Tue, Mar 10 - Tue, Mar 17
Spirit Airlines Logo
6:00 am - 3:35 pm
PHL
-
STI
8h 35m
1 stop
Spirit Airlines Logo
4:40 pm - 8:44 am
STI
-
PHL
17h 04m
1 stop
$277Spirit Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
8:06 am - 3:35 pm
PHL
-
STI
6h 29m
1 stop
Multiple Airlines Logo
4:40 pm - 12:21 am
STI
-
PHL
8h 41m
1 stop
$279Multiple Airlines
Tue, Feb 24 - Sat, Feb 28
Spirit Airlines Logo
6:08 pm - 1:49 am
PHL
-
STI
7h 41m
1 stop
Spirit Airlines Logo
3:43 pm - 8:39 am
STI
-
PHL
16h 56m
1 stop
$282Spirit Airlines
Wed, Mar 18 - Thu, Mar 26
Spirit Airlines Logo
6:48 am - 2:35 pm
PHL
-
STI
7h 47m
1 stop
Spirit Airlines Logo
3:28 pm - 11:56 pm
STI
-
PHL
8h 28m
1 stop
$284Spirit Airlines
Tue, Mar 17 - Tue, Mar 31

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
Mar 4
PHL8:06 amPhiladelphia
6h 29m
1 stop
STI3:35 pmSantiago de los Caballeros
Mar 11
STI3:41 pmSantiago de los Caballeros
8h 09m
1 stop
PHL11:50 pmPhiladelphia
$264
Spirit Airlines
Feb 23
PHL6:00 amPhiladelphia
8h 35m
1 stop
STI3:35 pmSantiago de los Caballeros
Mar 2
STI4:40 pmSantiago de los Caballeros
17h 04m
1 stop
PHL8:44 amPhiladelphia
$270
Spirit Airlines
Feb 25
PHL8:06 amPhiladelphia
6h 29m
1 stop
STI3:35 pmSantiago de los Caballeros
Mar 5
STI4:40 pmSantiago de los Caballeros
8h 10m
1 stop
PHL11:50 pmPhiladelphia
$272

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 February 9, 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

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 3/4

8:06 am-3:35 pm

1 stop6h 29m

Santiago de los Caballeros

Wed 3/11

3:41 pm-11:50 pm

1 stop8h 09m

$264

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 2/23

6:00 am-3:35 pm

1 stop8h 35m

Santiago de los Caballeros

Mon 3/2

4:40 pm-8:44 am

1 stop17h 04m

$270

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 2/25

8:06 am-3:35 pm

1 stop6h 29m

Santiago de los Caballeros

Thu 3/5

4:40 pm-11:50 pm

1 stop8h 10m

$272

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 4/11

6:48 am-2:23 pm

1 stop7h 35m

Santiago de los Caballeros

Wed 4/15

3:40 pm-11:59 pm

1 stop8h 19m

$273

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 3/10

6:00 am-2:33 pm

1 stop8h 33m

Santiago de los Caballeros

Tue 3/17

3:43 pm-8:39 am

1 stop16h 56m

$274

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 3/10

6:00 am-2:33 pm

1 stop8h 33m

Santiago de los Caballeros

Tue 3/17

3:43 pm-11:56 pm

1 stop8h 13m

$276

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 2/19

6:00 am-3:35 pm

1 stop8h 35m

Santiago de los Caballeros

Thu 2/26

4:40 pm-8:44 am

1 stop17h 04m

$277

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 2/24

8:06 am-3:35 pm

1 stop6h 29m

Santiago de los Caballeros

Sat 2/28

4:40 pm-12:21 am

1 stop8h 41m

$279

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 3/18

6:08 pm-1:49 am

1 stop7h 41m

Santiago de los Caballeros

Thu 3/26

3:43 pm-8:39 am

1 stop16h 56m

$282

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 3/17

6:48 am-2:35 pm

1 stop7h 47m

Santiago de los Caballeros

Tue 3/31

3:28 pm-11:56 pm

1 stop8h 28m

$284

Flights are sorted by cheapest round-trip flights 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 October. Flight prices, which tend to average around $339, 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 October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $385.

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 Sunday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Santiago de los Caballeros for around $724.

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 $485 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 $417 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.

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

You could potentially save up to 30% on your flight if you consider stops on a Philadelphia to Santiago de los Caballeros flight.

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

As of February 2026, prices for Philadelphia to Santiago de los Caballeros flights are approximately 39% 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

$194

Fastest flight time

3h 44m

Direct flights

Mon, Fri and Sun

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 $194. The best round-trip flight deal from Philadelphia to Santiago de los Caballeros found on momondo in the last 72 hours is $411.
The fastest flight from Philadelphia to Santiago de los Caballeros takes 3h 44m
Direct flights go from Philadelphia to Santiago de los Caballeros on Monday, Friday and Sunday. The only airline offering direct flights is Frontier.
There is 1 airport in Santiago de los Caballeros. From Philadelphia there are direct flights to Santiago de los Caballeros (STI).
  • 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 44m.

  • 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
8,437 reviews
Search Spirit Airlines flights
FrontierPriceFrom $255Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
JetBluePriceFrom $449Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights
American AirlinesPriceFrom $454Free CancellationRating
7.2
11,260 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
Wed 3/11
Wed 3/18

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