$135 Cheap Flights from Santiago (STI) to Philadelphia (PHL)

View $135 flight on Sun, Dec 21, 2025Opens in a new window

Popular airlines from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Santiago to Philadelphia (STI-PHL)

Prices were available within the past 7 days and start at $135 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Dec 28 - Sun, Jan 4
STI
Santiago de los Caballeros
PHL
Philadelphia
$219 Roundtrip, found 1 day ago
$219
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Dec 28 from Santiago de los Caballeros to Philadelphia, returning Sun, Jan 4, priced at $219 found 1 day ago
Spirit Airlines
Tue, Nov 18 - Sat, Dec 6
STI
Santiago de los Caballeros
PHL
Philadelphia
$259 Roundtrip, found 20 hours ago
$259
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Tue, Nov 18 from Santiago de los Caballeros to Philadelphia, returning Sat, Dec 6, priced at $259 found 20 hours ago
Spirit Airlines
Tue, Nov 18 - Sat, Nov 22
STI
Santiago de los Caballeros
PHL
Philadelphia
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, Nov 18 from Santiago de los Caballeros to Philadelphia, returning Sat, Nov 22, priced at $266 found 1 day ago
Spirit Airlines
Sat, Dec 6 - Sun, Dec 7
STI
Santiago de los Caballeros
PHL
Philadelphia
$269 Roundtrip, found 5 hours ago
$269
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Sat, Dec 6 from Santiago de los Caballeros to Philadelphia, returning Sun, Dec 7, priced at $269 found 5 hours ago
Spirit Airlines
Thu, Nov 13 - Tue, Nov 18
STI
Santiago de los Caballeros
PHL
Philadelphia
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Thu, Nov 13 from Santiago de los Caballeros to Philadelphia, returning Tue, Nov 18, priced at $273 found 2 days ago
Spirit Airlines
Fri, Dec 5 - Sat, Dec 6
STI
Santiago de los Caballeros
PHL
Philadelphia
$275 Roundtrip, found 5 hours ago
$275
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Fri, Dec 5 from Santiago de los Caballeros to Philadelphia, returning Sat, Dec 6, priced at $275 found 5 hours ago
Frontier Airlines
Thu, Dec 25 - Thu, Jan 1
STI
Santiago de los Caballeros
PHL
Philadelphia
$275 Roundtrip, found 6 hours ago
$275
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Dec 25 from Santiago de los Caballeros to Philadelphia, returning Thu, Jan 1, priced at $275 found 6 hours ago
JetBlue Airways
Sat, Dec 6 - Sun, Dec 7
STI
Santiago de los Caballeros
PHL
Philadelphia
$363 Roundtrip, found 5 hours ago
$363
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Sat, Dec 6 from Santiago de los Caballeros to Philadelphia, returning Sun, Dec 7, priced at $363 found 5 hours ago
Delta
Thu, Nov 20 - Sun, Nov 23
STI
Santiago de los Caballeros
PHL
Philadelphia
$518 Roundtrip, found 4 days ago
$518
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Nov 20 from Santiago de los Caballeros to Philadelphia, returning Sun, Nov 23, priced at $518 found 4 days ago
United
Wed, Dec 10 - Thu, Jan 22
STI
Santiago de los Caballeros
PHL
Philadelphia
$523 Roundtrip, found 8 hours ago
$523
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Dec 10 from Santiago de los Caballeros to Philadelphia, returning Thu, Jan 22, priced at $523 found 8 hours ago

Find the cheapest month to fly from Santiago de los Caballeros (STI) to Philadelphia (PHL)

February is typically the cheapest month to fly

From $240 - $613 per traveler.

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $321
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $321

Frequently asked questions

How much does a flight from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL) cost?
Get a cheap one-way flight from $135 or cheap return flight from $219 from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL)?
December is the least expensive month to fly from STI to PHL. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from STI to PHL. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL)?
There are no daily nonstop flights from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STI to PHL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from STI to PHL?
American Airlines has the strongest track record for on-time direct flights from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL), with an on-time rating of 96%. Use the Expedia App to check your journey status before you leave and get immediate updates about any trip changes.
What is the best time to fly from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL)?
To land at Philadelphia Intl. Airport (PHL) on schedule, choose a flight that leaves from Cibao Intl. Airport (STI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your plane ticket from STI to PHL shortly before your trip is usually more expensive. But if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a STI to PHL flight and hotel package?
You'll typically save money by securing a STI to PHL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your preferred accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Cibao Intl. Airport (STI) to Philadelphia Intl. Airport (PHL)?
If you booked your STI to PHL flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cibao Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$219
Distance
1441 mi

Book with confidence

Santiago to Philadelphia Flights

The cheapest times to fly from Santiago to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Santiago to Philadelphia are during the month of December. You can find some of the cheapest flights from Santiago to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Santiago to Philadelphia

Sunday is one of the best days to book for cheap flights from Santiago to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Santiago to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Santiago to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $135 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Santiago to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Santiago to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Santiago to Philadelphia Flights

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*Available to One Key members.