Cheap flights from San Juan to Philadelphia from $54 SJU → PHL, TTN
Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL), Trenton-Mercer Airport (TTN)
The cheapest return found recently is $137 with Frontier Airlines, 4 Feb 2027 – 7 Feb 2027, found 2 days ago. The cheapest one-way found recently is $54 with Frontier Airlines, 13 Nov, found 2 days ago.
- Cheapest one-way found recently
- $54, Frontier Airlines, found 2 days ago
- Cheapest return found recently
- $137, 4 Feb 2027 to 7 Feb 2027
- Usual return price
- $138 to $179
- Cheapest month to fly
- November 2026, return fares from $101 found in the last 7 days
- Airlines with nonstop flights
- Frontier Airlines, American Airlines, jetBlue
- Shortest nonstop flight found
- 4 h 11 min
Return
The cheapest return fare on each of 6 departure dates is usually $138 to $179.
Cheapest return found recently
$137
4 Feb 2027 – 7 Feb 2027 · Frontier Airlines
Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)
Leaves 4:25 p.m. · Return leaves 8:48 p.m. · 8 h 6 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$137
4 Feb 2027 – 7 Feb 2027 · Frontier Airlines
Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)
Leaves 4:25 p.m. · Return leaves 8:48 p.m. · 8 h 6 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$137 4 Feb 2027 – 7 Feb 2027found 2 days agoSee prices for these dates
$101 13 Nov – 15 Novfound 7 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $98 to $135.
At $137, the cheapest return found recently is above that range.
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 6 departure dates from 13 Nov to 4 Feb 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 3-night return fares leaving within 3 days of 4 Feb 2027 to compare.
Every date we hold
83 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 15 Nov | $101 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 22 Nov – 26 Nov | $180 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 20 Dec – 2 Jan 2027 | $176 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | out nonstop, back 1 stop | found 6 days ago | See prices for these dates |
| 23 Dec – 3 Jan 2027 | $141 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 30 Dec – 6 Jan 2027 | $338 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 4 Feb 2027 – 7 Feb 2027 | $137 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $101.
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 11 departure dates is usually $71 to $88.
Cheapest one-way found recently
$54
13 Nov · Frontier Airlines
Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)
Leaves 2:51 p.m. · 4 h 11 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$54
13 Nov · Frontier Airlines
Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)
Leaves 2:51 p.m. · 4 h 11 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$54 13 Novfound 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $36 to $59.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 11 departure dates from 13 Nov to 4 May 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 one-way fares leaving within 3 days of 13 Nov to compare.
Every date we hold
23 fares on 11 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov | $54 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 2 days ago | Open this trip |
| 19 Nov | $82 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 5 days ago | Open this trip |
| 20 Nov | $82 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 3 days ago | Open this trip |
| 23 Nov | $78 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | 1 stop | found 3 days ago | Open this trip |
| 26 Nov | $78 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 5 days ago | Open this trip |
| 27 Nov | $125 | jetBlue | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 5 days ago | Open this trip |
| 20 Dec | $82 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 2 days ago | Open this trip |
| 24 Dec | $64 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 2 days ago | Open this trip |
| 9 Feb 2027 | $94 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | 1 stop | found 7 days ago | Open this trip |
| 12 Feb 2027 | $60 | Frontier Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | nonstop | found 3 days ago | Open this trip |
| 4 May 2027 | $170 | American Airlines | Luis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL) | 1 stop | found 6 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $54.
Airlines on the cheapest dates: Frontier Airlines, jetBlue, American Airlines.
Premium cabin fares from San Juan to Philadelphia
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 4 Feb 2027 – 7 Feb 2027 in another cabin: Premium economy · Business · First
Today's prices for 13 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for San Juan to Philadelphia?
Return
Fares 7 to 13 days before departure were typically 9% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 | $126 | $101 | +10% | 19 |
| 7–13 days | $115 | $98 | Cheapest seen | 21 |
| 14–29 days | $115 | $103 | +0% | 35 |
| 30–59 days | $119 | $112 | +4% | 41 |
| 60–89 days | $229 | $117 | +99% | 35 |
| 90–179 days | $135 | $117 | +17% | 30 |
One-way
The cheapest fares were 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (49 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 | $49 | $36 | +2% | 29 |
| 7–13 days | $48 | $36 | Cheapest seen | 29 |
| 14–29 days | $66 | $57 | +38% | 33 |
| 30–59 days | $57 | $53 | +19% | 42 |
| 60–89 days | $59 | $53 | +23% | 29 |
| 90–179 days | $153 | $60 | +219% | 16 |
| 180+ days | $162 | $143 | +238% | 17 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
San Juan → New York
130 km from Philadelphia
$318
$181 more than flying to Philadelphia
24 Feb 2027 – 28 Feb 2027 · SJU → LGA · out 1 stop, back 1 stop
found 2 days ago
San Juan → Baltimore
145 km from Philadelphia
$501
$364 more than flying to Philadelphia
1 Jul 2027 – 4 Jul 2027 · SJU → BWI · out nonstop, back 1 stop
found 5 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
San Juan → Baltimore
145 km from Philadelphia
$251
$197 more than flying to Philadelphia
5 Jan 2027 · SJU → BWI · 2 stops
found 4 days ago
San Juan → New York
130 km from Philadelphia
$288
$234 more than flying to Philadelphia
30 Dec · SJU → LGA · 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 4 Feb 2027 – 7 Feb 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 San Juan to Philadelphia?
The cheapest return found recently is $137 with Frontier Airlines, 4 Feb 2027 to 7 Feb 2027, found 2 days ago. The cheapest return we hold, of any age, is $101 with Frontier Airlines, 13 Nov to 15 Nov, found 7 days ago. The cheapest return fare on each of 6 departure dates is usually $138 to $179.
How much is a one-way flight from San Juan to Philadelphia?
The cheapest one-way found recently is $54 with Frontier Airlines, 13 Nov, found 2 days ago. The cheapest one-way fare on each of 11 departure dates is usually $71 to $88.
What is the cheapest month to fly from San Juan to Philadelphia?
November 2026 is the cheapest month for a return, from $101, 13 Nov to 15 Nov, found 7 days ago. It is the cheapest month for a one-way too, from $54, 13 Nov, found 2 days ago.
How far ahead should I book a flight from San Juan to Philadelphia?
In 49 days of prices between 24 Sept and 11 Nov, return fares 7 to 13 days before departure were typically 9% lower than 0 to 6 days before departure. One-way fares were cheapest 7 to 13 days before departure.
Is there a direct flight from San Juan to Philadelphia?
Yes, the cheapest nonstop return found recently is $137 with Frontier Airlines, 4 Feb 2027 to 7 Feb 2027, found 2 days ago. The cheapest nonstop one-way found recently is $54 with Frontier Airlines, 13 Nov, found 2 days ago.
How long is the flight from San Juan to Philadelphia?
The cheapest nonstop one-way found recently, with Frontier Airlines on 13 Nov, takes 4 h 11 min from Luis Munoz Marin International Airport (SJU) to Philadelphia International Airport (PHL).
Which airlines have the cheapest flights from San Juan to Philadelphia?
Between 13 Nov and 4 Feb 2027, Frontier Airlines has the cheapest return on all 6 departure dates we hold. Between 13 Nov and 4 May 2027, Frontier Airlines has the cheapest one-way on 9 of the 11 departure dates we hold, jetBlue on 1 and American Airlines 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