Cheap flights from Philadelphia to San Juan

One-way fares from $57 · PHL → SJU · prices found by travellers in the last 48 hours

Compare all dates San Juan → Philadelphia
Cheapest fare
$57

Frontier Airlines · Sun, Nov 15

Cheapest month
November

from $57

Direct flights
Yes

Frontier Airlines and jetBlue

Flight time
3h 48m

2,540 km

Get a price alert

We'll email you when Philadelphia → San Juan drops to your price. It's free, and you can stop any time.

Today's cheapest fare is $57. We'll send one email to confirm. See our privacy policy.

Cheapest month to fly from Philadelphia to San Juan

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $57
  2. December 2026 $198
  3. January 2027 $57

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart19:07 Sun, Nov 15PHL → SJU 3h 57m · Direct
$57one way, per person
View deal
Frontier Airlines
Depart11:27 Tue, Nov 17PHL → SJU 3h 50m · Direct
$59one way, per person
View deal
jetBlue
Depart11:20 Thu, Nov 19PHL → SJU 3h 55m · Direct
$97one way, per person
View deal
American Airlines
Depart05:00 Fri, Nov 6PHL → SJU 5h 45m · 1 stop
$107one way, per person
View deal
American Airlines
Depart19:37 Thu, Nov 5PHL → SJU 5h 48m · 1 stop
$111one way, per person
View deal
American Airlines
Depart05:00 Wed, Nov 4PHL → SJU 8h 32m · 1 stop
$112one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to San Juan

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in San JuanCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in San JuanTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in San JuanPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in San JuanCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Philadelphia to San Juan

Philadelphia (PHL) and San Juan (SJU) are about 2,540 km apart. Direct flights take around 3h 48m, and recent direct fares were with Frontier Airlines and jetBlue. Over the next few months, one-way fares start from $57, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Philadelphia to San Juan?

The cheapest one-way fare we've seen recently is $57 with Frontier Airlines, departing Sunday, November 15, 2026. Over the coming months, the lowest fare in each month ranges from $57 to $198.

What is the cheapest month to fly from Philadelphia to San Juan?

November 2026 currently has the lowest fares, from $57 one way.

Are there direct flights from Philadelphia to San Juan?

Yes. Recent direct fares were with Frontier Airlines and jetBlue.

How long is the flight from Philadelphia to San Juan?

A direct flight takes about 3h 48m. Philadelphia and San Juan are around 2,540 km apart.

Which airlines fly from Philadelphia to San Juan?

Recent fares on this route were with Frontier Airlines, jetBlue and American Airlines.

More cheap flights from Philadelphia

Compare flights to San Juan from other cities →