EWR - SLU

$383 Find Cheap Flights from Newark Liberty Airport to Castries

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Newark to Castries departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Castries

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Newark to Castries, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Newark to Castries, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Newark to Castries (EWR-SLU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Newark to Castries that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Newark to Castries

Fri, Sep 19 - Sat, Sep 27
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9:00 am - 7:00 pmEWR-SLU
34h 00m3 stops
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12:35 pm - 10:14 amSLU-EWR
21h 39m2 stops
Thu, Nov 20 - Tue, Nov 25
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6:59 am - 11:30 amEWR-SLU
27h 31m2 stops
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7:30 am - 9:45 amSLU-EWR
27h 15m3 stops
Fri, Sep 19 - Sun, Sep 21
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9:00 am - 7:00 pmEWR-SLU
34h 00m3 stops
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12:10 pm - 10:14 amSLU-EWR
22h 04m2 stops
Mon, Sep 15 - Thu, Sep 18
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3:35 pm - 7:00 pmEWR-SLU
27h 25m3 stops
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9:10 am - 7:57 pmSLU-EWR
34h 47m3 stops
Thu, Sep 18 - Sun, Sep 21
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1:59 pm - 11:30 amEWR-SLU
21h 31m2 stops
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12:30 pm - 1:04 pmSLU-EWR
24h 34m2 stops
Thu, Oct 9 - Thu, Oct 16
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10:05 am - 11:30 amEWR-SLU
25h 25m2 stops
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6:20 pm - 11:29 pmSLU-EWR
29h 09m2 stops
Thu, Oct 9 - Thu, Oct 16
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10:05 am - 11:30 amEWR-SLU
25h 25m2 stops
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3:20 pm - 7:22 pmSLU-EWR
28h 02m3 stops
Thu, Dec 4 - Sun, Dec 7
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10:25 am - 7:00 pmEWR-SLU
31h 35m3 stops
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12:35 pm - 9:47 amSLU-EWR
22h 12m2 stops
Fri, Sep 19 - Mon, Sep 22
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9:00 am - 7:00 pmEWR-SLU
34h 00m3 stops
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9:10 am - 9:43 amSLU-EWR
24h 33m3 stops
Thu, Nov 6 - Thu, Nov 13
Air Caraïbes Logo
11:00 pm - 5:35 pmEWR-SLU
41h 35m2 stops
Air Caraïbes Logo
1:55 pm - 9:00 pmSLU-EWR
32h 05m2 stops
$1,165Air Caraïbes
Find Deal

Everything you should know

When to travel
November
Cheapest • 52% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$785
Overall average: $842
Multiple Airlines
Fri 9/19Sat 9/27
EWR - SLU • 3 stops
Cheapest one-way
$383
Multiple Airlines
Sun 11/16
EWR - SLU • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Booking Insights

KAYAK's insights & trends for Newark to Castries flights

Get data-powered insights and trends into flights from Newark to Castries to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Newark Airport to Castries?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Newark Airport to Castries, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Newark Airport to Castries is November, where tickets cost $337 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,031 and $927 respectively.

Good to know

Low seasonAugust
Cheapest flight$383
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Newark Liberty Airport to Castries

When to book flights from Newark to Castries

Are your dates flexible? Find out the best times to travel from Newark to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Newark Liberty Airport to Castries flights

  • What is the cheapest flight from Newark Airport to Castries?

    In the last 3 days, the lowest price for a flight from Newark Airport to Castries was $383 for a one-way ticket and $785 for a round-trip.

  • Do I need a passport to fly between Newark Liberty Airport and Castries?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Newark Liberty Airport and on arrival in Castries.

  • Which airports will I be using when flying from Newark Liberty Airport to Castries?

    Newark Liberty Airport airport is called Newark and the only airport in Castries is Castries George F. L. Charle.

  • Which aircraft models fly most regularly from Newark Liberty Airport to Castries?

    We unfortunately don’t have that data for this specific route.

  • Which is the best airline for flights from Newark to Castries, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Newark to Castries are United Airlines and American Airlines. With an average price for the route of $848 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $790 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Newark Liberty Airport to Castries?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Newark Liberty Airport to Castries.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Newark Liberty Airport to Castries?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from Newark Liberty Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Newark Liberty Airport to Castries?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Castries with an airline and back to Newark Liberty Airport with another airline. Booking your flights between Newark Liberty Airport and SLU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Newark Liberty Airport to Castries?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Castries from Newark Liberty Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Newark to Castries

 
See real verified KAYAK customer reviews for airlines flying from Newark to Castries. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Newark to Castries? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8937 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

10.0 ExcellentAnonymous, Aug 2025EWR - YYZ
Read more United Airlines reviews

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

The food should improve! And The flight should leave on time and not make the traveler wait.

We love united ! We would like to acknowledge Aimee in the lounge near gate 130

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

The flight was operated by Lufthansa. You can't expect much from them anymore. They have a talent in getting something wrong.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

We arrived 4 hours early and still almost missed the flight because they weren’t able to access one of the boarding tickets. They then sent hour bags late and we were all of our without clothing and eventually had to take an expensive cab back and forth to the airport as they wouldn’t deliver the bag which arrived late at night that day and we would have to wait until noon the began day (messing up a second day of plans). Also, all the food has dairy or pork. No vegan or even vegetarian option in the flight—even for purchase.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

flight was delayed for hours with no explanation. The plane was a very old aircraft.

The flight departed more than 1 hour late. Leg room is bigger than most airlines

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

In flight on demand didn't work at our seats. Only a single beverage/snack run.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

The flight crew that we had in our section may have been tired or something. I asked the flight attendant about my son’s screen not working and she spoke down to me like I was stupid. He still had no working screen throughout his flight. The other members had no personality and seemed like they were annoyed when you asked them for something. Definitely took a hit for simple things on my JB experience.

Everything you need to know for your flight from Newark to Castries

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