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Cheap flights from Newark Airport to San Juan Luis Munoz Marin Intl Airport from £56

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SJU
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Newark to San Juan Luis Munoz Marin Intl are usually found in October or March, booked 25 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap 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 17 September 2025.

Round-trip from

£140

One-way from

£56

Popular in

August

Cheapest in

October

Average price

£175

Good round-trip deal

£503 or less
JetBlue
  • JetBlue
  • 18/10-18/10
  • Nonstop
  • 7h 59m total
  • Newark to San Juan
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Frontier
  • Frontier
  • 25/9
  • Nonstop
  • 3h 58m total
  • Newark to San Juan
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Highest demand for flights based on searches. 10% potential increase in price (£17 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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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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Find flight deals from Newark to Luis Munoz Marin Intl

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 17 September 2025.

Wed 24/922:00EWR - SJU
Nonstop3h 58mMultiple Airlines
Tue 30/906:44SJU - EWR
1 stop9h 56mMultiple Airlines
Deal found 15/9£120
Sat 18/1006:15EWR - SJU
Nonstop3h 55mJetBlue
Sat 18/1017:00SJU - EWR
Nonstop4h 04mJetBlue
Deal found 15/9£140
Tue 14/1007:55EWR - SJU
Nonstop4h 05mUnited Airlines
Sat 18/1018:40SJU - EWR
Nonstop4h 10mUnited Airlines
Deal found 15/9£144
Thu 27/1108:25EWR - SJU
Nonstop4h 03mJetBlue
Sun 30/1106:50SJU - EWR
Nonstop4h 13mJetBlue
Deal found 16/9£144
Tue 30/906:15EWR - SJU
Nonstop3h 55mJetBlue
Tue 7/1017:00SJU - EWR
Nonstop4h 04mJetBlue
Deal found 15/9£147
Wed 8/1007:55EWR - SJU
Nonstop4h 05mUnited Airlines
Thu 16/1001:05SJU - EWR
Nonstop4h 10mUnited Airlines
Deal found 16/9£149
Tue 21/1012:05EWR - SJU
1 stop9h 54mDelta
Wed 29/1007:15SJU - EWR
1 stop9h 36mDelta
Deal found 15/9£150
Sat 4/1007:55EWR - SJU
Nonstop4h 05mUnited Airlines
Fri 10/1001:05SJU - EWR
Nonstop4h 10mUnited Airlines
Deal found 15/9£151
Sat 25/1005:54EWR - SJU
1 stop8h 34mFrontier
Wed 29/1017:51SJU - EWR
Nonstop4h 13mFrontier
Deal found 15/9£153
Wed 22/1007:55EWR - SJU
Nonstop4h 05mUnited Airlines
Tue 28/1016:50SJU - EWR
1 stop6h 48mUnited Airlines
Deal found 15/9£155
Wed 29/1011:59EWR - SJU
1 stop10h 00mDelta
Wed 12/1107:00SJU - EWR
1 stop11h 54mDelta
Deal found 16/9£158
Tue 30/906:00EWR - SJU
1 stop6h 34mUnited Airlines
Thu 2/1001:05SJU - EWR
Nonstop4h 10mUnited Airlines
Deal found 15/9£158

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 17 September 2025.
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

Newark

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 8/11

19:37-00:36

Nonstop3h 59m

San Juan Luis Munoz Marin Intl

Wed 19/11

19:35-22:53

Nonstop4h 18m

£144

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Fri 24/10

06:15-10:10

Nonstop3h 55m

San Juan Luis Munoz Marin Intl

Sun 26/10

10:48-15:00

Nonstop4h 12m

£144

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Tue 30/9

09:44-13:45

Nonstop4h 01m

San Juan Luis Munoz Marin Intl

Wed 1/10

01:05-05:15

Nonstop4h 10m

£151

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Wed 29/10

07:05-16:33

1 stop9h 28m

San Juan Luis Munoz Marin Intl

Wed 12/11

07:00-17:54

1 stop11h 54m

£158

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sun 18/1

08:45-13:48

Nonstop4h 03m

San Juan Luis Munoz Marin Intl

Wed 21/1

16:35-19:55

Nonstop4h 20m

£158

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 17/1

19:10-00:16

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Wed 28/1

16:35-19:55

Nonstop4h 20m

£158

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sun 18/1

19:10-00:16

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Wed 28/1

16:35-19:55

Nonstop4h 20m

£158

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Tue 20/1

06:00-14:16

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Thu 22/1

18:24-00:59

1 stop7h 35m

£165

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 8/11

19:37-00:36

Nonstop3h 59m

San Juan Luis Munoz Marin Intl

Mon 10/11

02:05-05:24

Nonstop4h 19m

£172

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 21/2

19:37-00:36

Nonstop3h 59m

San Juan Luis Munoz Marin Intl

Fri 27/2

02:05-05:24

Nonstop4h 19m

£180

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 24 results
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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?

Use this chart to determine the optimal time to book a return flight from Newark to Luis Munoz Marin Intl. Price data was last updated on 12 September 2025.

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 25 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, April is the cheapest month in which you can book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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 17 September 2025.

It’s optimal to fly from Newark Airport to San Juan Luis Munoz Marin Intl Airport at midday. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight in the morning.

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 3h 55m. Fly via United Airlines, JetBlue, or Delta to get the fastest option. Airlines will cover a distance of 1611 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Newark Airport to San Juan Luis Munoz Marin Intl Airport one-way?

    £72 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on JetBlue and Delta, with prices starting from £72 and £76, respectively.

  • 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 TAP AIR PORTUGAL (77%), United Airlines (75%) and JetBlue (72%).

  • 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 £647, our data indicates the cheapest price to be £503. The most popular route (Newark - San Juan Luis Munoz Marin Intl), is priced around £120.

  • 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, April is the cheapest month in which you can book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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

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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.

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