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Luis Munoz Marin Intl

$84+ Cheap flights from Newark (EWR) to Luis Munoz Marin Intl (SJU)

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SJU
Oct 8 — Oct 151
Wed 10/8
Wed 10/15
1 adult, Economy
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Cheapflights Tip: The best prices from Newark to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 21 days in advance, depart on a Tuesday or Saturday and return on a Friday

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 September 8, 2025.

Round-trip from

$141
(eDestinos)

One-way from

$84
(eDestinos)

Popular in

December

Cheapest in

October

Average price

$215

Good round-trip deal

$218 or less

Good one-way deal

$119 or less
From Newark to San Juan Luis Munoz Marin Intl
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One-way flight from Newark to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT 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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Price to beat on a one-way 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 September 8, 2025.

This eDestinos deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:00 pmEWR - SJU
Nonstop4h 02mFrontier
Mon 10/204:51 pmSJU - EWR
Nonstop4h 13mFrontier
Deal found 9/8$141
This Cheapflightsfares deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:00 pmEWR - SJU
Nonstop3h 58mFrontier
Fri 9/194:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/7$142
This Priceline deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:00 pmEWR - SJU
Nonstop3h 58mFrontier
Thu 9/184:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/6$144
This Flightnetwork deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/410:00 pmEWR - SJU
Nonstop3h 58mFrontier
Fri 10/174:51 pmSJU - EWR
Nonstop4h 13mFrontier
Deal found 9/7$145
This Cheapflightsfares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1310:00 pmEWR - SJU
Nonstop3h 58mFrontier
Thu 9/184:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/6$146
This Cheapflightsfares deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:00 pmEWR - SJU
Nonstop3h 58mFrontier
Sat 10/44:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/6$147
This Priceline deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:00 pmEWR - SJU
Nonstop3h 58mFrontier
Thu 9/184:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/6$148
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/410:00 pmEWR - SJU
Nonstop3h 58mFrontier
Sat 10/184:51 pmSJU - EWR
Nonstop4h 13mFrontier
Deal found 9/6$149
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1910:00 pmEWR - SJU
Nonstop3h 58mFrontier
Wed 9/244:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/7$150
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:30 pmEWR - SJU
Nonstop4h 03mFrontier
Sat 12/133:00 pmSJU - EWR
Nonstop4h 25mFrontier
Deal found 9/7$152
This eDestinos deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1310:00 pmEWR - SJU
Nonstop3h 58mFrontier
Wed 9/174:51 pmSJU - EWR
Nonstop4h 11mFrontier
Deal found 9/6$153
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:30 pmEWR - SJU
Nonstop4h 03mFrontier
Thu 11/203:00 pmSJU - EWR
Nonstop4h 20mFrontier
Deal found 9/7$154

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 8, 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

Wed 11/12

6:00 am-10:49 am

Nonstop3h 49m

San Juan Luis Munoz Marin Intl

Thu 11/20

6:50 am-10:03 am

Nonstop4h 13m

$186

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Tue 10/28

6:00 am-4:33 pm

1 stop10h 33m

San Juan Luis Munoz Marin Intl

Thu 11/13

1:57 pm-11:07 pm

1 stop10h 10m

$220

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Mon 2/9

6:00 am-2:16 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Fri 2/13

6:17 pm-12:59 am

1 stop7h 42m

$235

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Fri 2/20

8:55 pm-1:51 am

Nonstop3h 56m

San Juan Luis Munoz Marin Intl

Sat 2/28

7:00 am-10:15 am

Nonstop4h 15m

$246

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Fri 1/30

7:10 pm-12:16 am

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Sun 2/1

7:00 am-10:13 am

Nonstop4h 13m

$246

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Thu 11/13

2:01 pm-9:50 pm

1 stop6h 49m

San Juan Luis Munoz Marin Intl

Fri 12/12

12:10 pm-3:24 pm

Nonstop4h 14m

$250

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sun 2/8

3:00 pm-10:22 pm

1 stop6h 22m

San Juan Luis Munoz Marin Intl

Tue 2/10

5:50 pm-11:59 pm

1 stop7h 09m

$262

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Wed 2/18

8:55 pm-1:51 am

Nonstop3h 56m

San Juan Luis Munoz Marin Intl

Sat 2/28

2:00 pm-8:58 pm

1 stop7h 58m

$265

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sat 9/27

9:44 am-1:45 pm

Nonstop4h 01m

San Juan Luis Munoz Marin Intl

Sat 9/27

1:05 am-5:15 am

Nonstop4h 10m

$280

NewarkSan Juan

EWR - SJU

EWRSJU

Newark

Sun 9/28

9:44 am-1:45 pm

Nonstop4h 01m

San Juan Luis Munoz Marin Intl

Sun 9/28

1:05 am-5:15 am

Nonstop4h 10m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 23 results
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The best insider tips for Newark Airport to San Juan Luis Munoz Marin Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Newark Airport to San Juan Luis Munoz Marin Intl Airport trip
Airlines
Frontier

Frontier offers extra comfort seats with 32” separation for a fee, enhancing your travel experience.


Early morning flights have a better chance of taking off and arriving on time with Frontier.

Read more about Frontierby Marisa Garcia
United Airlines

United's Economy Plus offers extra legroom towards the front of the economy cabin.


United's Polaris Lounges offer showers, napping areas, and dining for premium passengers.

Read more about United Airlinesby Harriet Baskas
Airports
EWR

EWR offers live wait time updates for security lines. Arrive at least two hours early due to unpredictable wait times.

Read more about EWRby Brandon Schultz
SJU

For quick city access, use Uber from SJU. It's cashless and often cheaper than taxis, which may claim broken card machines.

Read more about SJUby Brandon Schultz
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Brandon Schultz

Brandon Schultz

Expert on EWR and SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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 round-trip 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 round-trip flight from Newark to Luis Munoz Marin Intl. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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 September 8, 2025.

One of the essential ways to save on airfare from Newark Airport to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 33% on airfare.

What is the cheapest day to fly from Newark Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Newark to Luis Munoz Marin Intl. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Newark Airport to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated September 8, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and JetBlue from Newark Airport to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,966 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,966 reviews
Delta
8.0
Very good
7,966 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,944 reviews
Delta
8.0
Very good
7,966 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
JetBlue
7.2
Good
2,914 reviews
Delta
8.0
Very good
7,966 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Spirit Airlines
6.3
Okay
8,022 reviews
Delta
8.0
Very good
7,966 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Frontier
5.8
Fair
3,187 reviews
Delta
8.0
Very good
7,966 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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?

    JetBlue and Delta can get you from Newark Airport to San Juan Luis Munoz Marin Intl Airport in just under 3h 49m. Your travel time can differ by up to 6h 44m. The distance between Newark Airport and San Juan Luis Munoz Marin Intl Airport is about 1611 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport round-trip?

    Cheapflights users have booked flights from Newark Airport to San Juan Luis Munoz Marin Intl Airport round-trip from $89. Other airlines that can offer you cheap pricing are Spirit Airlines, from $143, and JetBlue, from $144. These flights start at 67% lower than the current average price 3 months from now.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Newark Airport to San Juan Luis Munoz Marin Intl Airport on time: United Airlines (74%), TAP AIR PORTUGAL (72%), JetBlue (69%).

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

    Looking at all options, your cheapest flight can be booked for $81. While the most popular route (Newark - San Juan Luis Munoz Marin Intl) can be booked for $148 on average, our data indicates $587 when flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport.

  • 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 vacation 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, September is the cheapest month in which you can book a flight from Newark Airport to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Newark Airport to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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

Traveling 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
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Alternative routes for Newark to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
LaGuardia to Luis Munoz Marin Intl flights
Stewart to Luis Munoz Marin Intl flights

Top 6 airlines flying from Newark to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Newark to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$216FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$143Average$256FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$144Average$352FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$155Average$547FlexibilityNo cancel feeOn-time71%
DeltaCheapest$155Average$330FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$202Average$427FlexibilityNo cancel feeOn-time69%

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