EWR - SLU

$345 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 5/9. 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

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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Cheap Flights from Newark to Castries

 
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.

Recent round-trip flight deals from Newark to Castries

KAYAK's recommended round-trip deals from the most popular airlines that fly from Newark to Castries.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
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6:30 am - 2:35 pmEWR-SLU
32h 05m2 stops
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12:10 pm - 2:33 pmSLU-EWR
26h 23m3 stops
qua, jun 18 - dom, jun 22
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6:30 am - 7:00 pmEWR-SLU
12h 30m2 stops
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9:25 am - 8:08 amSLU-EWR
22h 43m2 stops
qui, jun 19 - dom, jun 22
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9:00 am - 1:10 pmEWR-SLU
28h 10m2 stops
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9:25 am - 8:15 amSLU-EWR
22h 50m2 stops
qua, out 8 - qua, out 15
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9:44 am - 11:30 amEWR-SLU
25h 46m2 stops
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5:00 am - 8:09 amSLU-EWR
27h 09m2 stops
qui, mai 1 - dom, mai 4
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9:00 am - 7:00 pmEWR-SLU
34h 00m2 stops
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9:25 am - 8:08 amSLU-EWR
22h 43m2 stops
qui, jun 19 - seg, jun 23
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6:30 pm - 7:00 pmEWR-SLU
24h 30m2 stops
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9:25 am - 9:04 amSLU-EWR
23h 39m2 stops
ter, jun 10 - seg, jun 16
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10:18 pm - 11:30 amEWR-SLU
37h 12m3 stops
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9:25 am - 8:15 amSLU-EWR
22h 50m2 stops
qua, out 8 - qua, out 15
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7:45 am - 7:00 pmEWR-SLU
35h 15m3 stops
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9:25 am - 7:48 pmSLU-EWR
34h 23m2 stops
$1,001
Find Deal
qua, mai 28 - ter, jun 3
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3:04 pm - 7:00 pmEWR-SLU
27h 56m3 stops
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9:25 am - 8:08 amSLU-EWR
22h 43m2 stops
$1,014
Find Deal
qui, jun 19 - seg, jun 23
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9:44 am - 11:30 amEWR-SLU
25h 46m2 stops
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5:00 am - 12:37 pmSLU-EWR
31h 37m3 stops
$1,016
Find Deal
qui, mai 1 - dom, mai 4

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 January, where tickets cost $516 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,297 and $1,031 respectively.

Good to know

Low season

May

High season

March

Cheapest flight

$345
Best time to beat the crowds but there is an average 67% increase in price.
Most popular time to fly and prices are also 31% 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 $345 for a one-way ticket and $783 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.

See more FAQs

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.
7.4
United AirlinesOverall score based on 8665 reviews
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

leg space better than expected. two washrooms for one plane isn't enough.

8.0 ExcellentJuan Luis, Apr 2025EWR - SEA
Read more United Airlines reviews

leg space better than expected. two washrooms for one plane isn't enough.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Excellent, professional, actually on time which is rare for late flights. Decent food. I love the new neck pillows! Nice, simple upgrade from the old ones I wasn't sure where to put. I wish they would allow more time for rest. It's a red eye 7 hour flight and meal service was about 3 hours.

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

Maybe add a seat trade app for flyers that didn’t get seats together

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

Boarding is very confusing. They have Line 1 and Line 2 and many many Boarding groups. Everyone lines up under those two lines long before they call zones. If you have a higher zone 2 like I did due to a Premium Plus ticket, it’s very awkward having to ask each person which zone they have. Extremely chaotic process. On board the flight attendants had no charisma whatsoever, even to us paying extra for an upgraded cabin. I asked for a chamomile tea after dinner (as no coffee or tea was even offered) and the FÃ said they didn’t have even though listed on the drink menu. Also, the mid flight service was entirely skipped which was a soup and sandwich combo. Supposedly had a variety of snacks mid flight too but those never materialized either. A few times I walked Back there, not a single flight attendant acknowledged me as they were all deep into their iPhones. I simply Wanted a glass of water since ZERO water runs were made on this 9hr 30 min flight.

Why is it that United flights from Newark are constantly delayed? Newark is a United hub!!!!!

horrible website for checking in- no option just to write the passport number; ludicrous

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

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.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

It was so bad it will be my last. Connecting flight gate agent closed the door in my face when i told her my husband is 30 seconds away (and we were running close/late because the preceding AA flight was slightly delayed. We had to be rebooked on a non-direct flight with an overnight layover in Phoenix. This is the worst experience ever and for no fault of our own. The flight we were trying to get on would not have been late if the gate agent allowed my husband to get there. It was senseless, cruel and very upsetting. I don’t understand why we were subjected to this.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

Flight cancelled. Added a day and a half to my travel. American Airlines DID put me in a hotel for two nights, but have not given any money back for any of this! I spent money on an apartment at my destination that I basically wasted because I could not arrive.

I was pleasantly surprised with an upgrade at boarding. I finally had a mostly gluten free food options and a very attentive attendant.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

AA had a nationwide tech glitch today and after two connections snd hours of delay, I arrived 7 hours late to my destination

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

Information on your arrival and departure airports

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