San Juan to Philadelphia flights

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Lowest observed

€54

Average observed

€123

Cheapest month

December 2026

Last checked

12 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €54

Lowest observed

18 Dec 2026

Non-stop · One way

Cheapest observed day · Last checked: 12 Oct 2026

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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.

Prices are for observed departure and return date pairs. No data does not mean no flights.

Lowest observed: €54, departing 18 Dec 2026 (Last checked: 12 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 12Check live prices for this route
Airlines seen: Frontier Airlines, American Airlines, Delta Air Lines, JetBlue, Southwest Airlines
Reported fastest flight: 4h 08m
Non-stop: Yes

Short answer

We have seen Frontier Airlines fares from San Juan to Philadelphia, non-stop. The lowest fare our own searches returned is €54, seen on 12 Oct 2026. The average across the fares we caught is €123. December 2026 is the cheapest month in our observations, at €54. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.

About this route

Explore the fares we observed from San Juan to Philadelphia. Prices move often, so pick your dates to see the latest options.

Route distance: 2,542 km
Reported fastest flight: 4h 08m
Airlines seen: Frontier Airlines, American Airlines, Delta Air Lines, JetBlue, Southwest Airlines
Alternative airports: SIG, TTN

Route-level information; individual journeys vary.
Published schedules report non-stop service with Frontier Airlines. Check current timetables.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Airport to city: straight-line distance

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.
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.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.