Cheap flights from Philadelphia to San Juan from $57

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest

$57

Frontier Airlines, flight F9 4462Found 6 days ago, 1 adult

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7:07pmPhiladelphiaSun, Nov 15

Travel time 3h 57m, nonstopPHLSJU

12:04amSan JuanMon, Nov 16

$57

Frontier Airlines, flight F9 1726Found 5 days ago, 1 adult

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8:56pmPhiladelphiaSun, Jan 10

Travel time 3h 46m, nonstopPHLSJU

1:42amSan JuanMon, Jan 11

$57

Frontier Airlines, flight F9 1726Found 7 days ago, 1 adult

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9:23pmPhiladelphiaSun, Jan 17

Travel time 3h 48m, nonstopPHLSJU

2:11amSan JuanMon, Jan 18

$59

Frontier Airlines, flight F9 1166Found 5 days ago, 1 adult

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11:27amPhiladelphiaTue, Nov 17

Travel time 3h 50m, nonstopPHLSJU

4:17pmSan JuanTue, Nov 17

$69

Frontier Airlines, flight F9 1016Found yesterday, 1 adult

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6:00amPhiladelphiaThu, Nov 19

Travel time 3h 55m, nonstopPHLSJU

10:55amSan JuanThu, Nov 19

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

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Getting from the airportTransfers and car hire in San Juan, booked ahead at a fixed price.
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Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

November 2026

MoTuWeThFrSaSu12345$111 6$107 7–8–9–10–11–12–13–14–15$57 16–17$59 18–19$69 20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12–13–14–15–16–17–18–19–20–21$189 22$198 23$252 24–25–26–27–28–29$145 30–31–

January 2027

MoTuWeThFrSaSu1–2–3–45678910111213141516171819202122232425262728293031

$57 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Nov 15, $57.

Lowest fares by month

In the fares found this week, November has the lowest: from $57 one-way, against $145 in December. Pick a month to see its cheapest date.

Nov$57
Dec$145
Jan$57
Febno fares yet
Marno fares yet
Aprno fares yet
Mayno fares yet
Junno fares yet
Julno fares yet
Augno fares yet
Sepno fares yet
Octno fares yet

Show as a table

Month	Cheapest one-way	Date	Stops
November	$57	Sun, Nov 15	Nonstop
December	$145	Tue, Dec 29	1 stop
January 2027	$57	Sun, Jan 17	Nonstop
February 2027	—
March 2027	—
April 2027	—
May 2027	—
June 2027	—
July 2027	—
August 2027	—
September 2027	—
October 2027	—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in San Juan. Average daily high and low and monthly precipitation, 1991–2020 normals.

	Nov2026	Dec	Jan2027	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct
Lowest fare	$57	$145	$57	–	–	–	–	–	–	–	–	–
High °C	30°	29°	28°	29°	29°	30°	31°	32°	32°	32°	32°	31°
Low °C	24°	23°	22°	22°	22°	23°	24°	25°	25°	25°	25°	25°
Precipitation mm	187	123	103	66	55	117	141	118	153	160	165	132

Source: San Juan, Puerto Rico on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

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

In the fares found this week, November has the lowest: from $57 one-way, against $145 in December.

What is the weather in San Juan in November?

In November, the cheapest month to fly, the average daily high in San Juan is 30 °C and the low 24 °C.

Are there direct flights from Philadelphia to San Juan?

Yes. Recent fares include nonstop flights with Frontier Airlines.

How long is the flight from Philadelphia to San Juan?

A nonstop flight takes about 3h 46m. The distance is 1,580 mi.

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