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Cheap flights from Philadelphia to Santiago de los Caballeros from $127

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 1/31. 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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Find the cheapest flights from Philadelphia to Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
8:54 pm - 2:42 am
PHL
-
STI
28h 48m1 stop
Spirit Airlines Logo
4:40 pm - 11:50 pm
STI
-
PHL
8h 10m1 stop
$301Spirit Airlines
Thu, Jan 1 - Wed, Feb 18
Spirit Airlines Logo
8:20 am - 3:33 pm
PHL
-
STI
6h 13m1 stop
Spirit Airlines Logo
4:40 pm - 11:50 pm
STI
-
PHL
8h 10m1 stop
$302Spirit Airlines
Thu, Jan 22 - Sun, Jan 25
Spirit Airlines Logo
8:06 am - 3:35 pm
PHL
-
STI
6h 29m1 stop
Spirit Airlines Logo
4:40 pm - 11:50 pm
STI
-
PHL
8h 10m1 stop
$304Spirit Airlines
Wed, Feb 18 - Wed, Mar 4
Multiple Airlines Logo
6:05 pm - 2:42 am
PHL
-
STI
7h 37m1 stop
Multiple Airlines Logo
4:40 pm - 9:12 pm
STI
-
PHL
29h 32m1 stop
$307Multiple Airlines
Mon, Jan 5 - Sun, Mar 1
Multiple Airlines Logo
7:00 am - 11:02 am
PHL
-
STI
27h 02m1 stop
Multiple Airlines Logo
4:40 pm - 8:01 pm
STI
-
PHL
28h 21m1 stop
$309Multiple Airlines
Tue, Jan 20 - Fri, Jan 30
Spirit Airlines Logo
6:00 am - 3:33 pm
PHL
-
STI
8h 33m1 stop
Spirit Airlines Logo
4:40 pm - 8:47 am
STI
-
PHL
17h 07m1 stop
$310Spirit Airlines
Thu, Jan 29 - Sun, Feb 1
Multiple Airlines Logo
3:34 pm - 3:33 pm
PHL
-
STI
22h 59m1 stop
Multiple Airlines Logo
4:40 pm - 12:44 am
STI
-
PHL
9h 04m1 stop
$311Multiple Airlines
Sun, Jan 25 - Sun, Feb 8
Spirit Airlines Logo
8:54 pm - 2:42 am
PHL
-
STI
28h 48m1 stop
Spirit Airlines Logo
4:40 pm - 8:47 am
STI
-
PHL
17h 07m1 stop
$312Spirit Airlines
Sat, Jan 3 - Sun, Feb 8
Spirit Airlines Logo
6:11 pm - 3:33 pm
PHL
-
STI
20h 22m1 stop
Spirit Airlines Logo
4:40 pm - 8:47 am
STI
-
PHL
17h 07m1 stop
$314Spirit Airlines
Sat, Jan 10 - Sat, Jan 17
Spirit Airlines Logo
6:00 am - 3:33 pm
PHL
-
STI
8h 33m1 stop
Spirit Airlines Logo
4:40 pm - 8:47 am
STI
-
PHL
17h 07m1 stop
$316Spirit Airlines
Thu, Jan 15 - Fri, Jan 23

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
Jan 1
PHL8:54 pmPhiladelphia
28h 48m
1 stop
STI2:42 amSantiago de los Caballeros
Feb 18
STI4:40 pmSantiago de los Caballeros
8h 10m
1 stop
PHL11:50 pmPhiladelphia
$301
Find similar
Spirit Airlines
Jan 22
PHL8:20 amPhiladelphia
6h 13m
1 stop
STI3:33 pmSantiago de los Caballeros
Jan 25
STI4:40 pmSantiago de los Caballeros
8h 10m
1 stop
PHL11:50 pmPhiladelphia
$302
Find similar
Spirit Airlines
Feb 18
PHL8:06 amPhiladelphia
6h 29m
1 stop
STI3:35 pmSantiago de los Caballeros
Mar 4
STI4:40 pmSantiago de los Caballeros
8h 10m
1 stop
PHL11:50 pmPhiladelphia
$304
Find similar

JetBlue flights from Philadelphia to Santiago de los Caballeros

Our best JetBlue deals on Philadelphia to Santiago de los Caballeros flight tickets
JetBlue
Jan 28
PHL7:00 amPhiladelphia
26h 37m
1 stop
STI10:37 amSantiago de los Caballeros
Feb 4
STI12:12 pmSantiago de los Caballeros
11h 57m
1 stop
PHL11:09 pmPhiladelphia
$359
Find similar
JetBlue
Dec 22
PHL7:05 pmPhiladelphia
8h 45m
1 stop
STI4:50 amSantiago de los Caballeros
Jan 5
STI11:25 amSantiago de los Caballeros
12h 24m
1 stop
PHL10:49 pmPhiladelphia
$473
Find similar
JetBlue
Dec 23
PHL4:32 pmPhiladelphia
16h 43m
1 stop
STI10:15 amSantiago de los Caballeros
Jan 16
STI12:12 pmSantiago de los Caballeros
11h 57m
1 stop
PHL11:09 pmPhiladelphia
$637
Find similar

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 December 13, 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

Thu 1/1

8:54 pm-2:42 am

1 stop28h 48m

Santiago de los Caballeros

Wed 2/18

4:40 pm-11:50 pm

1 stop8h 10m

$301

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 1/22

8:20 am-3:33 pm

1 stop6h 13m

Santiago de los Caballeros

Sun 1/25

4:40 pm-11:50 pm

1 stop8h 10m

$302

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Wed 2/18

8:06 am-3:35 pm

1 stop6h 29m

Santiago de los Caballeros

Wed 3/4

4:40 pm-11:50 pm

1 stop8h 10m

$304

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Mon 1/5

6:05 pm-2:42 am

1 stop7h 37m

Santiago de los Caballeros

Sun 3/1

4:40 pm-9:12 pm

1 stop29h 32m

$307

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Tue 1/20

7:00 am-11:02 am

1 stop27h 02m

Santiago de los Caballeros

Fri 1/30

4:40 pm-8:01 pm

1 stop28h 21m

$309

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 1/29

6:00 am-3:33 pm

1 stop8h 33m

Santiago de los Caballeros

Sun 2/1

4:40 pm-8:47 am

1 stop17h 07m

$310

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sun 1/25

3:34 pm-3:33 pm

1 stop22h 59m

Santiago de los Caballeros

Sun 2/8

4:40 pm-12:44 am

1 stop9h 04m

$311

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 1/3

8:54 pm-2:42 am

1 stop28h 48m

Santiago de los Caballeros

Sun 2/8

4:40 pm-8:47 am

1 stop17h 07m

$312

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Sat 1/10

6:11 pm-3:33 pm

1 stop20h 22m

Santiago de los Caballeros

Sat 1/17

4:40 pm-8:47 am

1 stop17h 07m

$314

PhiladelphiaSantiago de los Caballeros

PHL - STI

PHLSTI

Philadelphia

Thu 1/15

6:00 am-3:33 pm

1 stop8h 33m

Santiago de los Caballeros

Fri 1/23

4:40 pm-8:47 am

1 stop17h 07m

$316

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 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 $348.

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 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 $1,151.

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 $759 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 $466 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 December 2025, prices for Philadelphia to Santiago de los Caballeros flights are approximately 3% 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

$291

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 $291. The best round-trip flight deal from Philadelphia to Santiago de los Caballeros found on momondo in the last 72 hours is $567.
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 in Santiago de los Caballeros. From Philadelphia there are direct flights to 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
8,182 reviews
Search Spirit Airlines flights
FrontierPriceFrom $300Free CancellationRating
5.8
3,083 reviews
Search Frontier flights
American AirlinesPriceFrom $454Free CancellationRating
7.2
11,052 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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