Skip to content
Sign in

Cheap flights from SJU to PHL

Recently found return fares from $37, with October the cheapest month we know of. Compare dates, then book with the partner you choose.

Cheapest months to fly

Lowest recently found return fare in each month. Tap a month to see that month's calendar.

$37 Oct2026 $69 Nov2026 $66 Dec2026

SJU → PHL

November 2026

Mon Tue Wed Thu Fri Sat Sun 1 2 3 $70 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 $69 21 22 23 24 25 26 27 28 29 30
LowerHigherLowest this month

Lowest fares for the best day

  • Frontier AirlinesFri 13 Nov – Sun 15 Nov · Direct · 4h 10m $103
  • Frontier AirlinesTue 3 Nov – Thu 12 Nov · 1 stop · 5h 46m $133
  • Frontier AirlinesFri 20 Nov – Mon 23 Nov · 1 stop · 6h 17m $140
See all flights for these dates

Watch this route

SJU
PHL

We'll ask you to confirm your email. Sign in to manage all alerts in one place.

More trips from SJU

All flights from SJU PHL to SJU flights
FLLfrom $89 Miamifrom $109 TPAfrom $114 Atlantafrom $126 New Yorkfrom $131 Dallasfrom $139 Bostonfrom $140 Medellinfrom $151

FAQ

Questions about this route

Still have a question?

Search the help center or send us a message. We reply by email.

Help center Contact us
01What is the cheapest month to fly from SJU to PHL?

Based on recently found fares, October 2026 has the lowest price we know of, from $37. Prices change often, so check the calendar for current fares.

02Are the prices on this page final?

No. They are recently found fares. When you open a deal, the partner shows the live price, including taxes and fees, before you pay.

03How can I get an alert when flights to PHL get cheaper?

Use the price alert on this page. Choose your dates or a whole month and we will email you when the fare drops.