EWR - SLU

$329 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 11/24. 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
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Everything you should know

Cheapest round-trip
$693
Overall average: $502
Multiple Airlines
Thu 1/29Sun 2/1
EWR - SLU • 2 stops
Cheapest one-way
$367
Multiple Airlines
Mon 11/24
EWR - SLU • 3 stops
When to travel
February
Cheapest • 46% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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!
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, Jan 29 - Sun, Feb 1
Multiple Airlines Logo
10:00 am - 3:15 pmEWR-SLU
28h 15m2 stops
Multiple Airlines Logo
7:10 pm - 12:56 amSLU-EWR
30h 46m2 stops
$693Multiple Airlines
Find Deal
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
9:03 pm - 3:35 pmEWR-SLU
41h 32m3 stops
Multiple Airlines Logo
6:20 pm - 10:04 pmSLU-EWR
28h 44m2 stops
$700Multiple Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
5:53 pm - 11:30 amEWR-SLU
16h 37m2 stops
Multiple Airlines Logo
4:20 pm - 1:17 amSLU-EWR
33h 57m2 stops
$713Multiple Airlines
Find Deal
Sun, Jan 18 - Sun, Jan 25
Multiple Airlines Logo
5:53 pm - 3:35 pmEWR-SLU
20h 42m2 stops
Multiple Airlines Logo
7:10 pm - 12:56 amSLU-EWR
30h 46m2 stops
$723Multiple Airlines
Find Deal
Sun, Jan 18 - Thu, Jan 22
Multiple Airlines Logo
7:38 am - 3:35 pmEWR-SLU
30h 57m2 stops
Multiple Airlines Logo
6:20 pm - 12:56 amSLU-EWR
31h 36m2 stops
$726Multiple Airlines
Find Deal
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
10:25 am - 7:00 pmEWR-SLU
31h 35m2 stops
Multiple Airlines Logo
6:20 pm - 12:56 amSLU-EWR
31h 36m2 stops
$733Multiple Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
Multiple Airlines Logo
8:44 am - 3:15 pmEWR-SLU
29h 31m2 stops
Multiple Airlines Logo
5:00 am - 11:55 amSLU-EWR
31h 55m3 stops
$769Multiple Airlines
Find Deal
Fri, Jan 23 - Wed, Jan 28
Multiple Airlines Logo
10:00 am - 1:10 pmEWR-SLU
26h 10m2 stops
Multiple Airlines Logo
10:25 am - 9:21 pmSLU-EWR
35h 56m3 stops
$787Multiple Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
8:13 am - 3:15 pmEWR-SLU
30h 02m2 stops
Multiple Airlines Logo
6:20 pm - 1:17 amSLU-EWR
31h 57m2 stops
$790Multiple Airlines
Find Deal
Fri, Jan 9 - Sat, Jan 17
Multiple Airlines Logo
9:03 pm - 10:10 pmEWR-SLU
24h 07m3 stops
Multiple Airlines Logo
6:20 pm - 10:04 pmSLU-EWR
28h 44m2 stops
$801Multiple Airlines
Find Deal
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 February, where tickets cost $362 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,074 and $848 respectively.

Good to know

Low seasonFebruary
Cheapest flight$367
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly and prices are also 20% 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 $367 for a one-way ticket and $693 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.

  • Which airline alliances offer flights from Newark Liberty Airport to Castries?

    oneworld is the only airline alliance operating flights between Newark Liberty Airport and Castries.

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

    The two airlines most popular with KAYAK users for flights from Newark to Castries are JetBlue and American Airlines. With an average price for the route of $582 and an overall rating of 7.2, JetBlue is the most popular choice. American Airlines is also a great choice for the route, with an average price of $752 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 airlines 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.
7.2
American AirlinesOverall score based on 11030 reviews
7.5Boarding
6.9Entertainment
8.0Crew
7.2Comfort
6.4Food
Airline reviews

Disliked having to wait a little longer to disembark from the plan when we landed in London

10.0 ExcellentLESTER, Oct 2025JFK - LHR
Read more American Airlines reviews

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

They only offered water for Group 6. Awful announcements from the Crew. Couldn't understand a single word. Barely came by for the trash afterwards. Man, I love water for a premium flight. Wow. Water in a cup.

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.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

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.

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

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