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Cheap flights from Newark Airport to San Juan Luis Munoz Marin Intl Airport from £79

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SJU
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Newark to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 12 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Newark to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

Cheapest flights from Newark to Luis Munoz Marin Intl
Explore the most affordable flight options available from Newark to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 April 2026.

Thu 4/611:30
EWR
-
SJU
1 stop14h 38m
Frontier
Sun 7/609:09
SJU
-
EWR
1 stop25h 23m
Frontier
Deal found 23/4£161
Sun 17/511:30
EWR
-
SJU
1 stop11h 13m
Multiple Airlines
Sat 23/500:59
SJU
-
EWR
Nonstop4h 07m
Multiple Airlines
Deal found 26/4£164
Thu 4/611:30
EWR
-
SJU
1 stop14h 38m
Multiple Airlines
Sun 7/607:00
SJU
-
EWR
Nonstop4h 13m
Multiple Airlines
Deal found 23/4£185
Thu 28/518:42
EWR
-
SJU
Nonstop4h 00m
Spirit Airlines
Sun 31/520:04
SJU
-
EWR
1 stop13h 00m
Spirit Airlines
Deal found 26/4£186
Sat 30/519:45
EWR
-
SJU
Nonstop4h 05m
United Airlines
Fri 5/601:00
SJU
-
EWR
Nonstop4h 10m
United Airlines
Deal found 23/4£190
Tue 28/413:45
EWR
-
SJU
1 stop12h 16m
Frontier
Sat 2/515:43
SJU
-
EWR
1 stop9h 33m
Frontier
Deal found 24/4£192
Tue 2/619:45
EWR
-
SJU
Nonstop4h 05m
United Airlines
Fri 5/601:00
SJU
-
EWR
Nonstop4h 10m
United Airlines
Deal found 24/4£197
Sat 1/819:45
EWR
-
SJU
Nonstop4h 05m
United Airlines
Tue 4/801:00
SJU
-
EWR
Nonstop4h 10m
United Airlines
Deal found 24/4£205
Tue 26/519:45
EWR
-
SJU
Nonstop4h 05m
United Airlines
Mon 8/601:00
SJU
-
EWR
Nonstop4h 10m
United Airlines
Deal found 25/4£207
Wed 27/518:42
EWR
-
SJU
Nonstop4h 00m
Spirit Airlines
Sun 31/520:04
SJU
-
EWR
1 stop13h 00m
Spirit Airlines
Deal found 26/4£208

Find flight deals from Newark to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 April 2026.

Round-trip from

£161

One-way from

£79

Popular in

December

Cheapest in

October

Average price

£265

Good round-trip deal

£507 or less
Frontier
  • Frontier
  • 4/6-7/6
  • 2 total stops
  • 40h 01m total
  • Newark to San Juan
Search Deals
Frontier
  • Frontier
  • 18/5
  • 1 total stop
  • 11h 13m total
  • Newark to San Juan
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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Price to beat on a round-trip flight from Newark to San Juan Luis Munoz Marin Intl.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Newark to Luis Munoz Marin Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 April 2026.
Use the filters below to find and compare flights from Newark Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 16/5

15:08-21:24

1 stop6h 16m

San Juan Luis Munoz Marin Intl

Thu 21/5

18:45-22:55

Nonstop4h 10m

£219
Fastest return journey

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 15/8

17:30-21:30

Nonstop4h 00m

San Juan Luis Munoz Marin Intl

Fri 21/8

16:56-21:11

Nonstop4h 15m

£236

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sun 10/5

19:45-23:50

Nonstop4h 05m

San Juan Luis Munoz Marin Intl

Fri 15/5

01:00-05:10

Nonstop4h 10m

£241

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Thu 27/8

17:30-21:30

Nonstop4h 00m

San Juan Luis Munoz Marin Intl

Mon 31/8

21:53-09:03

1 stop11h 10m

£282

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sun 10/5

06:10-12:34

1 stop6h 24m

San Juan Luis Munoz Marin Intl

Thu 21/5

01:00-05:10

Nonstop4h 10m

£293

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Fri 14/8

17:30-21:30

Nonstop4h 00m

San Juan Luis Munoz Marin Intl

Fri 21/8

16:56-21:11

Nonstop4h 15m

£309

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Tue 12/5

15:08-21:24

1 stop6h 16m

San Juan Luis Munoz Marin Intl

Thu 14/5

18:45-22:55

Nonstop4h 10m

£312

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Fri 25/9

19:47-23:50

Nonstop4h 03m

San Juan Luis Munoz Marin Intl

Tue 29/9

15:56-00:53

1 stop8h 57m

£312
Cheapest one-way

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 5/9

19:47-23:50

Nonstop4h 03m

£95

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Wed 26/8

07:00-16:35

1 stop9h 35m

£98

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from Newark to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Newark with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

The price you pay for your flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 11 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport (average of £177). Flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £289). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from EWR to SJU?

Find hourly flight availability from Newark to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 April 2026.

It’s optimal to fly from Newark Airport to San Juan Luis Munoz Marin Intl Airport in the morning. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight at midday.

How much does it cost for a return flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Newark to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

    There are many flights that can get you from Newark Airport to San Juan Luis Munoz Marin Intl Airport in 4h. Fly via United Airlines or Spirit Airlines to get the fastest option. Airlines will cover a distance of 1611 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

    The top 3 most reliable airlines when flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport are JetBlue (85%), TAP AIR PORTUGAL (78%) and Air Canada (78%).

  • What are the cheapest flights from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

    Looking for the cheapest flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport? While on average our users pay £651, our data indicates the cheapest price to be £507. The most popular route (Newark - San Juan Luis Munoz Marin Intl), is priced around £225.

  • Can I find deals for flights from Newark to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Newark to Luis Munoz Marin Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Newark to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Newark to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Newark to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport (average of £177). Flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £289). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Bayamón

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Can Cheapflights find flights from Newark to Luis Munoz Marin Intl with no change fees?

Need flexible booking options for your flight to Luis Munoz Marin Intl from Newark? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Newark to Luis Munoz Marin Intl become cheaper?

Of course! You can now track prices for flights from Newark to Luis Munoz Marin Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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