Cheap flights from Philadelphia to Santiago, Dominican Republic from $352 PHL, TTN → STI
Philadelphia International Airport (PHL), Trenton-Mercer Airport (TTN) → Cibao International Airport (STI)
The cheapest return found recently is $598 with Frontier Airlines, 27 Dec – 10 Jan 2027, found yesterday. The cheapest one-way found recently is $352 with Frontier Airlines, 3 Jan 2027, found 2 days ago.
- Cheapest one-way found recently
- $352, found 2 days ago
- Cheapest return found recently
- $598, 27 Dec to 10 Jan 2027
- Usual return price
- $607 to $669
- Cheapest month to fly
- December 2026, return fares from $598 found in the last 7 days
- Airlines with nonstop flights
- American Airlines, Frontier Airlines
Return
The cheapest return fare on each of 8 departure dates is usually $607 to $669.
Cheapest return found recently
$598
27 Dec – 10 Jan 2027 · Frontier Airlines
Philadelphia International Airport (PHL) → Cibao International Airport (STI)
Leaves 11:26 a.m. · Return leaves 11:33 a.m. · 7 h 17 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Cheapest nonstop return
$598
27 Dec – 10 Jan 2027 · Frontier Airlines
Philadelphia International Airport (PHL) → Cibao International Airport (STI)
Leaves 11:26 a.m. · Return leaves 11:33 a.m. · 7 h 17 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Found recently, and the cheapest we hold
$598 27 Dec – 10 Jan 2027found yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 37 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $295 to $771.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 8 departure dates from 22 Nov to 11 Jul 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 14-night return fares leaving within 3 days of 27 Dec to compare.
Every date we hold
21 fares on 8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Nov – 29 Nov | $660 | Frontier Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out 2 stops, back 1 stop | found yesterday | See prices for these dates |
| 26 Nov – 30 Nov | $632 | Frontier Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out 1 stop, back 2 stops | found yesterday | See prices for these dates |
| 20 Dec – 27 Dec | $736 | Frontier Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 27 Dec – 10 Jan 2027 | $598 | Frontier Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 3 Jan 2027 – 17 Jan 2027 | $602 | Frontier Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 31 Jan 2027 – 14 Feb 2027 | $668 | American Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out 1 stop, back nonstop | found yesterday | See prices for these dates |
| 2 May 2027 – 9 May 2027 | $608 | jetBlue | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 11 Jul 2027 – 25 Jul 2027 | $673 | American Airlines | Philadelphia International Airport (PHL) → Cibao International Airport (STI) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $598.
Airlines on the cheapest dates: Frontier Airlines, American Airlines, jetBlue.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$352
3 Jan 2027 · Frontier Airlines
Trenton-Mercer Airport (TTN) → Cibao International Airport (STI)
Leaves 9:16 p.m. · 41 h 59 min trip
2 stops
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$352 3 Jan 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 13 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $166 to $352.
At $352, the cheapest one-way found recently is at the high end of that range.
13 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 3 Jan 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 3 Jan 2027 | $352 | Frontier Airlines | Trenton-Mercer Airport (TTN) → Cibao International Airport (STI) | 2 stops | found 2 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Philadelphia to Santiago
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 27 Dec – 10 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 3 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Philadelphia to Santiago?
Return
Fares 7 to 13 days before departure were typically 8% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (37 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $651 | $651 | +9% | 8 |
| 7–13 days | $600 | $600 | Cheapest seen | 9 |
| 14–29 days | $645 | $600 | +8% | 19 |
| 30–59 days | $628 | $598 | +5% | 19 |
One-way
Not enough history yet: in 13 days of one-way prices, 24 Sept to 12 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
New York → Santiago
130 km from Philadelphia
$374
$224 less than flying from Philadelphia
1 Dec – 15 Dec · JFK → STI · out 1 stop, back 2 stops
found yesterday
Philadelphia → Puerto Plata
43 km from Santiago
$859
$261 more than flying to Santiago
12 Mar 2027 – 16 Mar 2027 · PHL → POP · out 1 stop, back 1 stop
found yesterday
Philadelphia → Santo Domingo
124 km from Santiago
$894
$296 more than flying to Santiago
20 Dec – 5 Jan 2027 · PHL → SDQ · out 1 stop, back 1 stop
found today
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
New York → Santiago
130 km from Philadelphia
$136
$216 less than flying from Philadelphia
16 Jan 2027 · JFK → STI · nonstop
found yesterday
Philadelphia → Santo Domingo
124 km from Santiago
$181
$171 less than flying to Santiago
3 Mar 2027 · PHL → SDQ · 1 stop
found 3 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 27 Dec – 10 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Philadelphia to Santiago?
The cheapest return found recently is $598 with Frontier Airlines, 27 Dec to 10 Jan 2027, found yesterday. The cheapest return fare on each of 8 departure dates is usually $607 to $669.
How much is a one-way flight from Philadelphia to Santiago?
The cheapest one-way found recently is $352 with Frontier Airlines, 3 Jan 2027, found 2 days ago.
What is the cheapest month to fly from Philadelphia to Santiago?
December 2026 is the cheapest month for a return, from $598, 27 Dec to 10 Jan 2027, found yesterday.
How far ahead should I book a flight from Philadelphia to Santiago?
In 37 days of prices between 24 Sept and 12 Nov, return fares 7 to 13 days before departure were typically 8% lower than 0 to 6 days before departure.
Is there a direct flight from Philadelphia to Santiago?
Yes, the cheapest nonstop return found recently is $598 with Frontier Airlines, 27 Dec to 10 Jan 2027, found yesterday.
How long is the flight from Philadelphia to Santiago?
The cheapest one-way found recently, with Frontier Airlines on 3 Jan 2027, takes 41 h 59 min with 2 stops.
Which airlines have the cheapest flights from Philadelphia to Santiago?
Between 22 Nov and 11 Jul 2027, Frontier Airlines has the cheapest return on 5 of the 8 departure dates we hold, American Airlines on 2 and jetBlue on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work