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Isla Grande

Cheap flights from Newark (EWR) to Isla Grande (SIG)

EWR — SIG
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheap flight deals from Newark to Isla Grande

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Isla Grande (SIG). 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 octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

August

Cheapest in

February

Average price

$251
Provider with most accurate pricing for Newark-San Juan Isla Grande flight deals.
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Provider most trusted by Cheapflights users for Newark-San Juan Isla Grande flights.
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Highest demand for flights based on searches. 19% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Compare providers for flights from Newark to Isla Grande

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Newark to Isla Grande in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Newark Airport-San Juan Isla Grande Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Newark Airport-San Juan Isla Grande Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Newark Airport-San Juan Isla Grande Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Newark Airport-San Juan Isla Grande Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Newark Airport-San Juan Isla Grande Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Newark to Isla Grande

Have a flexible travel schedule? Discover the best time to fly to Isla Grande 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 Isla Grande Airport

What is the cheapest month to book a flight from Newark Airport to San Juan Isla Grande Airport?

Currently, May is the cheapest month in which you can book a flight from Newark Airport to San Juan Isla Grande Airport (average of $74). Flying from Newark Airport to San Juan Isla Grande Airport in August is currently the most expensive (average of $388). 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 SIG?

Find hourly flight availability from Newark to Isla Grande. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

When flying from Newark Airport to San Juan Isla Grande Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 31% versus a flight in the evening.

Reviews of airlines servicing Isla Grande

Get insights into the airlines that provide service to Isla Grande. 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 Isla Grande. Reviews last updated octubre 30, 2025.
Peruse reviews from past customers who have flown with JetBlue and Frontier from Newark Airport to San Juan Isla Grande 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.
JetBlue
7.2
Good
2,906 reviews

Boarding

7.4

Crew

8.0

Overall

7.2

Food

6.7

Comfort

7.6

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
JetBlue
7.2
Good
2,906 reviews
JetBlue
7.2
Good
2,906 reviews

Boarding

7.4

Crew

8.0

Overall

7.2

Food

6.7

Comfort

7.6

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
Frontier
5.8
Fair
3,123 reviews
JetBlue
7.2
Good
2,906 reviews

Boarding

7.4

Crew

8.0

Overall

7.2

Food

6.7

Comfort

7.6

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.

Related info for your journey

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

  • What are the cheapest airlines flying from Newark Airport to San Juan Isla Grande Airport round-trip?

    Frontier, at $107, was found to be the cheapest airline from Newark Airport to San Juan Isla Grande Airport. An alternate airline flying to your destination would be JetBlue. These flights start at 66% lower than the current average price 3 months from now.

  • Can I find deals for flights from Newark to Isla Grande that include hotel bookings?

    Yes. In addition to deals on Newark to Isla Grande flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Newark to Isla Grande?

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

  • Can I find deals for business class flights from Newark to Isla Grande?

    Yes. Cheapflights offers flight deals from Newark to Isla Grande 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 Isla Grande Airport?

    Currently, May is the cheapest month in which you can book a flight from Newark Airport to San Juan Isla Grande Airport (average of $74). Flying from Newark Airport to San Juan Isla Grande Airport in August is currently the most expensive (average of $388). 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.

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Alternative routes for Newark to Isla Grande

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Newark to Isla Grande

Discover the top 2 airlines that operate flights from Newark to Isla Grande. 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$107Average$303FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$221Average$391FlexibilityNo cancel feeOn-time62%

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