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New York to San Juan flights in January 2027 from $100 EWR, JFK, LGA → SJU

Newark Liberty International Airport (EWR), John F. Kennedy International Airport (JFK), LaGuardia Airport (LGA) → Luis Munoz Marin International Airport (SJU)

For departures in January 2027, the cheapest return found recently is $208 with Frontier Airlines, 11 Jan 2027 – 16 Jan 2027, found 4 days ago. The cheapest one-way found recently is $100 with jetBlue, 5 Jan 2027, found 3 days ago.

Return

In January 2027, the cheapest return fare on each of 7 departure dates is usually $226 to $287. Across all 39 departure dates we hold on this route, it is usually $282 to $449. Of the 4 months with enough return fares to compare, January 2027 is usually the cheapest.

Cheapest return found recently

$208

11 Jan 2027 – 16 Jan 2027 · Frontier Airlines

Newark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)

out nonstop, back 1 stop

found 4 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$205

13 Jan 2027 – 21 Jan 2027 · jetBlue

John F. Kennedy International Airport (JFK) → Luis Munoz Marin International Airport (SJU)

out 1 stop, back 1 stop

found 6 days ago

See prices for these datesCheck today's price

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The cheapest dates in January 2027

DatesFromAirlineStopsFound
13 Jan 2027 – 21 Jan 2027$205jetBlueout 1 stop, back 1 stopfound 6 days agoSee prices for these dates
11 Jan 2027 – 16 Jan 2027$208Frontier Airlinesout nonstop, back 1 stopfound 4 days agoSee prices for these dates
10 Jan 2027 – 16 Jan 2027$243Frontier Airlinesout nonstop, back 1 stopfound 5 days agoSee prices for these dates
4 Jan 2027 – 14 Jan 2027$246Frontier Airlinesout nonstop, back 1 stopfound 5 days agoSee prices for these dates
9 Jan 2027 – 16 Jan 2027$278Frontier Airlinesout nonstop, back 1 stopfound 4 days agoSee prices for these dates

Every date we hold

7 departure dates

4 Jan 2027 – 14 Jan 2027: $246, found 5 days ago9 Jan 2027 – 16 Jan 2027: $278, found 4 days ago10 Jan 2027 – 16 Jan 2027: $243, found 5 days ago11 Jan 2027 – 16 Jan 2027: $208, found 4 days ago13 Jan 2027 – 21 Jan 2027: $205, found 6 days ago21 Jan 2027 – 29 Jan 2027: $340, found 4 days ago28 Jan 2027 – 2 Feb 2027: $295, found 4 days agoJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
4 Jan 2027 – 14 Jan 2027$246Frontier AirlinesNewark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)out nonstop, back 1 stopfound 5 days agoSee prices for these dates
9 Jan 2027 – 16 Jan 2027$278Frontier AirlinesNewark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)out nonstop, back 1 stopfound 4 days agoSee prices for these dates
10 Jan 2027 – 16 Jan 2027$243Frontier AirlinesNewark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)out nonstop, back 1 stopfound 5 days agoSee prices for these dates
11 Jan 2027 – 16 Jan 2027$208Frontier AirlinesNewark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)out nonstop, back 1 stopfound 4 days agoSee prices for these dates
13 Jan 2027 – 21 Jan 2027$205jetBlueJohn F. Kennedy International Airport (JFK) → Luis Munoz Marin International Airport (SJU)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
21 Jan 2027 – 29 Jan 2027$340Frontier AirlinesLaGuardia Airport (LGA) → Luis Munoz Marin International Airport (SJU)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
28 Jan 2027 – 2 Feb 2027$295jetBlueJohn F. Kennedy International Airport (JFK) → Luis Munoz Marin International Airport (SJU)out nonstop, back 1 stopfound 4 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $195.

November 2026From $2527 departure dates17 Nov – 17 Dec · found 7 days agoSee prices for these datesEvery date in November 2026
December 2026From $195Cheapest seen17 departure dates8 Dec – 15 Dec · found 5 days agoSee prices for these datesEvery date in December 2026
January 2027From $2057 departure dates13 Jan 2027 – 21 Jan 2027 · found 6 days agoSee prices for these dates
February 2027From $3475 departure dates8 Feb 2027 – 13 Feb 2027 · found 4 days agoSee prices for these dates
March 2027From $4421 departure date11 Mar 2027 – 14 Mar 2027 · found 2 days agoSee prices for these dates
June 2027From $4441 departure date11 Jun 2027 – 19 Jun 2027 · found 5 days agoSee prices for these dates
August 2027From $4581 departure date27 Aug 2027 – 5 Sept 2027 · found 2 days agoSee prices for these dates

One-way

We hold one-way fares on only 2 departure dates in January 2027, too few to say what one usually costs.

Cheapest one-way found recently

$100

5 Jan 2027 · jetBlue

Newark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)

nonstop

found 3 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

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The cheapest dates in January 2027

DatesFromAirlineStopsFound
5 Jan 2027$100jetBluenonstopfound 3 days agoOpen this trip
2 Jan 2027$127Frontier Airlinesnonstopfound 3 days agoOpen this trip

Every date we hold

2 departure dates

2 Jan 2027: $127, found 3 days ago5 Jan 2027: $100, found 3 days agoJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 Jan 2027$127Frontier AirlinesLaGuardia Airport (LGA) → Luis Munoz Marin International Airport (SJU)nonstopfound 3 days agoOpen this trip
5 Jan 2027$100jetBlueNewark Liberty International Airport (EWR) → Luis Munoz Marin International Airport (SJU)nonstopfound 3 days agoOpen this trip

Which month looks cheapest?

January 2027 is the cheapest month — from $100.

November 2026From $1631 departure date17 Nov · found 7 days agoOpen this tripEvery date in November 2026
December 2026From $1141 departure date29 Dec · found 7 days agoOpen this tripEvery date in December 2026
January 2027From $100Cheapest seen2 departure dates5 Jan 2027 · found 3 days agoOpen this trip
March 2027From $2361 departure date13 Mar 2027 · found 3 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work