Your next trip, last seen at €51
Lowest observedWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €51, departing 25 Oct 2026 (Last checked: 11 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 49Check live prices for this route
- Airlines seen
- JetBlue, Frontier Airlines, American Airlines, United Airlines
- Reported fastest flight
- 3h 49m
- Non-stop
- Yes
About this route
Explore the fares we observed from Philadelphia to San Juan. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,542 km
- Reported fastest flight
- 3h 49m
- Airlines seen
- JetBlue, Frontier Airlines, American Airlines, United Airlines
- Alternative airports
- TTN, SIG
Route-level information; individual journeys vary.
Published schedules report non-stop service with JetBlue, Frontier Airlines. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- Philadelphia International Airport (PHL) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 11 km.
- Trenton Mercer Airport (TTN) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 47 km.
- Fernando Luis Ribas Dominicci Airport (SIG) → San Juan, city gazetteer reference point (18.4663, -66.1057): ≈ 1 km.
- Luis Munoz Marin International Airport (SJU) → San Juan, city gazetteer reference point (18.4663, -66.1057): ≈ 11 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Philadelphia to San Juan: October 2026, from €51 (checked 11 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €51 | 18 |
| November 2026 | €54 | 21 |
| December 2026 | €184 | 9 |
Lowest fare by day of the week
Cheapest day of the week from Philadelphia to San Juan: Sunday, from €51 (checked 11 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €60 | 8 |
| Tuesday | €54 | 7 |
| Wednesday | €62 | 7 |
| Thursday | €62 | 7 |
| Friday | €72 | 7 |
| Saturday | €55 | 6 |
| Sunday | €51 | 7 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Philadelphia to San Juan by days until departure (8 to 30 days): €51 (checked 11 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €55 | 7 |
| 8 to 30 days | €51 | 23 |
| 31 to 60 days | €54 | 9 |
| 61 days or more | €60 | 10 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Philadelphia to San Juan?
The lowest fare we have observed is €51, found on 11 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Philadelphia to San Juan?
Cheapest month from Philadelphia to San Juan: October 2026, from €51 (checked 11 Oct 2026).
Are there direct flights from Philadelphia to San Juan?
Yes. We have seen non-stop flights on this route, flown by JetBlue, Frontier Airlines.
Which airlines fly from Philadelphia to San Juan?
These are the carriers we have seen on the route: JetBlue, Frontier Airlines, American Airlines, United Airlines.
How many of the observed Philadelphia to San Juan fares were non-stop?
41 of the 55 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from Philadelphia to San Juan?
Cheapest day of the week from Philadelphia to San Juan: Sunday, from €51 (checked 11 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
Keep exploring
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Recently observed fares. Prices may change.
Last checked: 13 Oct 2026