£333 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU)

View £333 flight on Tue, 19 May 2026Opens in a new window

Popular airlines from Newark Liberty Intl. Airport (EWR) to George F. L. Charles Airport (SLU)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU)

Prices were available within the past 7 days and start at £333 for one-way flights and £773 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, 17 May - Sat, 23 May
EWR
New York
SLU
Castries
£773 Return, found 2 days ago
£773
Return
found 2 days ago
Select Air Canada flight, departing Sun, 17 May from New York to Castries, returning Sat, 23 May, priced at £773 found 2 days ago

Find the cheapest month to fly from New York (EWR) to Castries (SLU)

June is typically the cheapest month to fly

From £290 - £793 per traveller.

Frequently asked questions

What is the cheapest month to fly from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
November is typically the cheapest month to fly from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles), with average return fares of approximately £674. This is about 23% lower than the average price throughout the year. November often sees lower prices as it's outside peak holiday seasons, making it a great time to find deals. Other cheap months to fly from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) include January and February.
How do I find cheap flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
To find a cheap flight from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
The best airline to fly with from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) will differ from traveller to traveller. If you like to fly early, UA offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. AC offers the most daily flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
Based on booking data from the past year, the cheapest months to fly from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) (SLU) are typically November and January, with average return flights costing around £674. These months fall outside of peak holiday seasons, which often means lower demand and more affordable fares for you.
How many flights per day from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
There are approximately 14 connecting flights per day from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) (SLU). Some common connection points include Pearson Intl. (YYZ), Washington Dulles Intl. (IAD), and Princess Juliana Intl. (SXM).
What is the earliest flight from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
The earliest flight from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and is seasonal, active only in August. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
You'll typically find the most flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) (SLU) on a Friday, with around 53 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, United Airlines, and Air Canada. When looking at the overall week, Friday offers notably more flight options compared to other days.
What are the most popular departure times for flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
The most popular departure times for flights from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) (SLU) are in the early morning, from 6am to 9am. Approximately 31% of passengers prefer this time window. Many major carriers, including American Airlines and Delta, offer flights during this window. These times work well because you can get an early start to your journey and arrive at your destination with plenty of time to settle in.
How long does it take to fly from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
Flights from EWR to SLU with one stop typically take around 8 hours 30 minutes, covering approximately 2,007 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
Select the "Business class" and "First class" filters when looking for EWR to SLU flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) flight with Expedia?
It's easy to earn miles on a Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Castries from Liberty Intl. (EWR)?
If you're planning to travel to Castries from Liberty Intl. (EWR), you can fly directly into George F. L. Charles (SLU) Some flights may connect through major hubs like Charlotte-Douglas Intl. (CLT), Pearson Intl. (YYZ), Dallas-Fort Worth Intl. (DFW) before reaching Castries. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) at the last minute?
Typically, booking a last minute flight from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) flight and hotel package?
Securing a Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles)?
If you booked your Newark Liberty Intl. Airport (EWR) to Castries (SLU-George F. L. Charles) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Newark Liberty Intl. Airport
Destination airport
George F. L. Charles
Return price
£772
Distance
3211 km

Book with confidence

Compare flights from Newark Liberty Intl. Airport to Castries easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Newark Liberty Intl. Airport to Castries. Operating between them flights per day, 2 airlines cover the route. And fly direct, getting you to George F. L. Charles in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Newark Liberty Intl. Airport to George F. L. Charles.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Newark Liberty Intl. Airport (EWR) to George F. L. Charles (SLU)

The easiest way to view the best deals on flights from Newark Liberty Intl. Airport to Castries today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Newark Liberty Intl. Airport to George F. L. Charles start at just £773 and range up to £773.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Newark Liberty Intl. Airport and Castries
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Newark Liberty Intl. Airport to Castries flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Newark Liberty Intl. Airport to George F. L. Charles for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Newark Liberty Intl. Airport to Castries easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.