EWR - SLU

$312 Find Cheap Flights from Newark Liberty Airport to Castries - Compare and Save

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 11/8. 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, 0 bags

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$774
Multiple Airlines
Thu 11/5Mon 11/9
EWR - SLU • 2 stops
Cheapest one-way
$312
Multiple Airlines
Sun 11/8
EWR - SLU • 2 stops
When to travel
May
Cheapest • 100% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Flight Deals
Booking Insights
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

Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
6:00 am - 7:00 pm
EWR
-
SLU
12h 00m
2 stops
Multiple Airlines Logo
12:35 pm - 9:47 am
SLU
-
EWR
22h 12m
2 stops
$774Multiple Airlines
Sun, Nov 8 - Fri, Nov 13
Multiple Airlines Logo
6:00 am - 7:00 pm
EWR
-
SLU
12h 00m
2 stops
Multiple Airlines Logo
12:35 pm - 10:10 am
SLU
-
EWR
22h 35m
2 stops
$879Multiple Airlines
Mon, Sep 7 - Sat, Sep 12
Multiple Airlines Logo
6:30 am - 7:00 pm
EWR
-
SLU
12h 30m
2 stops
Multiple Airlines Logo
12:35 pm - 8:00 am
SLU
-
EWR
19h 25m
2 stops
$884Multiple Airlines
Sun, Sep 20 - Thu, Oct 1
Multiple Airlines Logo
9:00 am - 7:00 pm
EWR
-
SLU
34h 00m
2 stops
Multiple Airlines Logo
12:35 pm - 10:30 pm
SLU
-
EWR
33h 55m
2 stops
$902Multiple Airlines
Fri, Nov 27 - Sun, Nov 29
Multiple Airlines Logo
6:30 pm - 7:00 pm
EWR
-
SLU
23h 30m
2 stops
Multiple Airlines Logo
12:35 pm - 9:47 am
SLU
-
EWR
22h 12m
2 stops
$913Multiple Airlines
Sat, Nov 28 - Sat, Dec 5
Multiple Airlines Logo
8:30 pm - 7:00 pm
EWR
-
SLU
21h 30m
2 stops
Multiple Airlines Logo
12:35 pm - 9:47 am
SLU
-
EWR
22h 12m
2 stops
$927Multiple Airlines
Thu, Nov 12 - Mon, Nov 16
Multiple Airlines Logo
6:00 am - 7:00 pm
EWR
-
SLU
12h 00m
2 stops
Multiple Airlines Logo
12:35 pm - 9:47 am
SLU
-
EWR
22h 12m
2 stops
$953Multiple Airlines
Wed, Jul 8 - Sat, Jul 11
Multiple Airlines Logo
6:30 am - 7:00 pm
EWR
-
SLU
12h 30m
2 stops
Multiple Airlines Logo
12:35 pm - 8:14 am
SLU
-
EWR
19h 39m
2 stops
$962Multiple Airlines
Mon, Sep 7 - Sat, Sep 12
Multiple Airlines Logo
6:00 am - 8:10 am
EWR
-
SLU
26h 10m
3 stops
Multiple Airlines Logo
12:35 pm - 10:22 am
SLU
-
EWR
21h 47m
2 stops
$1,028Multiple Airlines
Sun, Nov 8 - Fri, Nov 13
Multiple Airlines Logo
9:30 pm - 7:00 pm
EWR
-
SLU
20h 30m
3 stops
Multiple Airlines Logo
12:35 pm - 8:14 am
SLU
-
EWR
20h 39m
2 stops
$1,074Multiple Airlines
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.

How much is a round-trip flight from Newark Airport to Castries?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Newark Airport to Castries departing in November.

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 May, where tickets cost $0 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $1,298 and $1,117 respectively.

Find deals

Good to know

Low seasonDecember
Cheapest flight$312
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly with an average 8% increase in price.
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 5 days, the lowest price for a flight from Newark Airport to Castries was $312 for a one-way ticket and $774 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 aircraft models fly most regularly from Newark Liberty Airport to Castries?

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

  • 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 airline flying 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.
7.1
JetBlueOverall score based on 2984 reviews
6.6Food
7.3Boarding
7.5Comfort
7.2Entertainment
7.9Crew
Airline reviews

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

10.0 ExcellentTammy, Jun 2026
EWR - TPA
Read more JetBlue reviews

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

First the flt was delayed over 2 hrs bc of plane mechanics that should have been handled better! No text or email was sent so only found out at the airport so there we sat for 5 hours! THATS RIDICULOUS! The gate area was filthy! No agents showed up till hr before so no additional info was given-waited online for 15 mins while the gate agent chatted and got together then given last seat in back of plane!! No priority for senior or anything-took attendants over 2hrs to serve drinks and snack-WHY are they not served together? By time snack came needed another drink! Worst service in my life!

All the TV screens in my rows was non functional . The map shown for an international route was antiqued..

Flight did not have onboard charging and TV screen flickering.

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

We were delayed and had to circle due to weather and had to divert for fuel. While I understand that you can’t control the weather I would have appreciated knowing that the crew wasn’t going to run out of hours and then having to spend the night in the Raleigh airport.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

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

Information on your arrival and departure airports

Newark Liberty Airport (EWR)
Castries (SLU)