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Flights · LIS → SJU

Lisbon to San Juan

Best fare, round trip

$1,236

Too little price history on this route to compare — the fare is shown as found.

Found
Depart
Sun 20 Dec
Return
Sun 3 Jan
Stay
14 nights
Flight
1 stop · 12h
Airline
American
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Cached fare — the booking search re-prices live before you pay.

Puerto RicoSan JuanFive centuries of old town on a Caribbean island that takes US dollars and needs no passport from the States.Best windowDec–AprAirportsLuis Muñoz Marín (SJU)Every route into San Juan

Your own dates

Search Lisbon to San Juan for the days you want.

Trip options: Round-trip · Economy · 1 adult
Travellers: 1 adult

Fare seasonality

When this route gets cheap.

The cheapest itinerary we are tracking makes one stop and takes about 12 hours outbound, on a 14-night trip — ticketed under American, which on a connecting fare need not operate every leg. At $1,236 for 5,896 km each way, that works out to about $105 per 1,000 km flown. That is above the $43 per 1,000 km typical of medium-haul fares here. Across the 10 departure cities we track at a similar distance from San Juan, this fare ranks 8th — 5.5× the $223 we hold from Los Angeles. For context, the middle fare among the 13 routes of similar length we watch out of Lisbon is $675. We have 1 month of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage. Fare history here is still too short to name a cheap season. The best time to be in San Juan: Dec–Apr.

The 3 days we hold a cached fare for

Press a date to compare its fares

These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.

Cached fares · checked 15 Oct 2026

We are still collecting this route's months — 1 month of cached prices so far, too few to chart.

Route facts

Airports
Humberto Delgado (LIS) ↔ Luis Muñoz Marín (SJU)
Flight time
≈12 hours outbound
Distance
≈5,896 km each way
Airlines on the board
American
Itineraries
Connections on current fares
Best months to visit
Dec–Apr

Good to know

LIS → SJU, answered.

How far in advance should I book LIS → San Juan?

We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. Our guide Why flight prices change covers the levers we can measure.

Are there nonstop flights from Lisbon to San Juan?

The current cheapest fares involve a connection, ticketed under American. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.

Are these prices guaranteed?

No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.

Next step

Sleeping in San Juan?

Lock the flight first — then compare stays for 20 Dec – 3 Jan '27 · 14 nights.

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