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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

See prices for these datesCheck today's price

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

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $137 4 Feb 2027 – 7 Feb 2027found 2 days agoSee prices for these dates

Cheapest we hold, of any age $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

13 Nov – 15 Nov: $101, found 7 days ago22 Nov – 26 Nov: $180, found 6 days ago20 Dec – 2 Jan 2027: $176, found 6 days ago23 Dec – 3 Jan 2027: $141, found 3 days ago30 Dec – 6 Jan 2027: $338, found 3 days ago4 Feb 2027 – 7 Feb 2027: $137, found 2 days agoNovDecFeb
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Nov – 15 Nov$101Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)out nonstop, back nonstopfound 7 days agoSee prices for these dates
22 Nov – 26 Nov$180Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
20 Dec – 2 Jan 2027$176Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
23 Dec – 3 Jan 2027$141Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)out nonstop, back nonstopfound 3 days agoSee prices for these dates
30 Dec – 6 Jan 2027$338Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)out nonstop, back nonstopfound 3 days agoSee prices for these dates
4 Feb 2027 – 7 Feb 2027$137Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $101.

November 2026From $101Cheapest seen2 departure dates13 Nov – 15 Nov · found 7 days agoSee prices for these dates
December 2026From $1413 departure dates23 Dec – 3 Jan 2027 · found 3 days agoSee prices for these dates
February 2027From $1371 departure date4 Feb 2027 – 7 Feb 2027 · found 2 days agoSee prices for these dates

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

Open this tripCheck today's price

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

Open this tripCheck today's price

FareTell may earn a commission when you book through a partner.

Found recently, and the cheapest we hold

Cheapest found recently $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.

$54, the cheapest one-way found recently, sits here in that range of $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

13 Nov: $54, found 2 days ago19 Nov: $82, found 5 days ago20 Nov: $82, found 3 days ago23 Nov: $78, found 3 days ago26 Nov: $78, found 5 days ago27 Nov: $125, found 5 days ago20 Dec: $82, found 2 days ago24 Dec: $64, found 2 days ago9 Feb 2027: $94, found 7 days ago12 Feb 2027: $60, found 3 days ago4 May 2027: $170, found 6 days agoNovDecFebMay
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Nov$54Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 2 days agoOpen this trip
19 Nov$82Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 5 days agoOpen this trip
20 Nov$82Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 3 days agoOpen this trip
23 Nov$78Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)1 stopfound 3 days agoOpen this trip
26 Nov$78Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 5 days agoOpen this trip
27 Nov$125jetBlueLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 5 days agoOpen this trip
20 Dec$82Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 2 days agoOpen this trip
24 Dec$64Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 2 days agoOpen this trip
9 Feb 2027$94Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)1 stopfound 7 days agoOpen this trip
12 Feb 2027$60Frontier AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)nonstopfound 3 days agoOpen this trip
4 May 2027$170American AirlinesLuis Munoz Marin International Airport (SJU) → Philadelphia International Airport (PHL)1 stopfound 6 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $54.

November 2026From $54Cheapest seen6 departure dates13 Nov · found 2 days agoOpen this trip
December 2026From $642 departure dates24 Dec · found 2 days agoOpen this trip
February 2027From $602 departure dates12 Feb 2027 · found 3 days agoOpen this trip
May 2027From $1701 departure date4 May 2027 · found 6 days agoOpen this trip

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.

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
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$126$101+10%19
7–13 days$115$98Cheapest seen21
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
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$49$36+2%29
7–13 days$48$36Cheapest seen29
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

See this route

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

Check today's price

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

Check today's price

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

See this route

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