BOS - UVF

$161 Find Cheap Flights from Boston 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 Boston to Castries departing on 9/18. 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.
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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 Boston 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 Boston to Castries, as well as popular online travel agencies
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Cheap Flights from Boston to Castries

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston 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 Boston to Castries

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Castries.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
6:00 am - 1:31 pmBOS-UVF
7h 31m1 stop
United Airlines Logo
2:35 pm - 9:56 amUVF-BOS
19h 21m2 stops
$372United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
Air Canada Logo
3:20 pm - 2:15 pmBOS-UVF
46h 55m2 stops
Air Canada Logo
3:10 pm - 2:31 pmUVF-BOS
23h 21m2 stops
$393Air Canada
Find Deal
Wed, Sep 10 - Tue, Sep 16
American Airlines Logo
5:00 am - 2:11 pmBOS-UVF
9h 11m1 stop
American Airlines Logo
3:14 pm - 8:37 amUVF-BOS
17h 23m2 stops
$509American Airlines
Find Deal
Thu, May 15 - Wed, May 21
Delta Logo
5:35 am - 2:20 pmBOS-UVF
8h 45m1 stop
Delta Logo
3:40 pm - 1:39 amUVF-BOS
9h 59m1 stop
$517Delta
Find Deal
Tue, Jul 29 - Tue, Aug 5
American Airlines Logo
6:00 am - 2:11 pmBOS-UVF
8h 11m1 stop
American Airlines Logo
2:34 pm - 12:19 amUVF-BOS
9h 45m1 stop
$518American Airlines
Find Deal
Thu, May 15 - Wed, May 21
JetBlue Logo
5:12 am - 1:49 pmBOS-UVF
8h 37m1 stop
JetBlue Logo
3:09 pm - 12:17 amUVF-BOS
9h 08m1 stop
$524JetBlue
Find Deal
Wed, May 28 - Wed, Jun 4
JetBlue Logo
8:40 am - 4:20 pmBOS-UVF
7h 40m1 stop
JetBlue Logo
5:40 pm - 7:44 amUVF-BOS
14h 04m1 stop
$527JetBlue
Find Deal
Thu, Jul 3 - Mon, Jul 7
Delta Logo
5:35 am - 2:20 pmBOS-UVF
8h 45m1 stop
Delta Logo
3:40 pm - 1:39 amUVF-BOS
9h 59m1 stop
$541Delta
Find Deal
Wed, Jul 30 - Tue, Aug 5
 Logo
2:25 pm - 2:15 pmBOS-UVF
23h 50m3 stops
 Logo
3:10 pm - 2:32 pmUVF-BOS
23h 22m2 stops
Mon, Jun 9 - Fri, Jun 13
 Logo
5:42 pm - 2:15 pmBOS-UVF
44h 33m3 stops
 Logo
3:10 pm - 2:32 pmUVF-BOS
23h 22m2 stops
Wed, Jun 4 - Tue, Jun 10
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KAYAK's insights & trends for Boston to Castries flights

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

What’s the cheapest day of the week to fly from Boston to Castries?

The average price of all round-trip flights from Boston to Castries clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to Castries, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Castries, Thursday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Boston to Castries?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston 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 Boston to Castries is January, where tickets cost $480 (return) on average. On the other hand, the most expensive months are April and December, where the average cost of round-trip tickets is $811 and $792 respectively.

Can I save money by flying with a layover from Boston to Castries?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $907 on average.

How far in advance should I book a flight from Boston to Castries?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Castries, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Castries, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonOctober
High seasonFebruary
Cheapest flight$161
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Boston to Castries

When to book flights from Boston to Castries

Are your dates flexible? Find out the best times to travel from Boston 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 flights from Boston to Castries

  • What is the cheapest flight from Boston to Castries?

    In the last 3 days, the lowest price for a flight from Boston to Castries was $161 for a one-way ticket and $372 for a round-trip.

  • Do I need a passport to fly between Boston and Castries?

    Yes

  • Which airports will I be using when flying from Boston to Castries?

    Boston and Castries are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at Castries Hewanorra.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Castries?

    JetBlue, and American Airlines offer inflight Wi-Fi service on the Boston to Castries flight route.

  • Which aircraft models fly most regularly from Boston to Castries?

    The Airbus A318/A319/A320/A321 is the aircraft model that flies most regularly on the Boston to Castries flight route.

  • Which airline alliances offer flights from Boston to Castries?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Boston and Castries, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Castries from Boston?

    New York is the most popular layover city among KAYAK users traveling from Boston to Castries.

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

    The two airlines most popular with KAYAK users for flights from Boston to Castries are Delta and United Airlines. With an average price for the route of $599 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $587 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Castries.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from Boston 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 Boston 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 Boston with another airline. Booking your flights between Boston and UVF 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 Boston 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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Castries

  • Looking for a cheap flight? 25% of our users found flights on this route for $156 or less one-way and $642 or less round-trip.

Top 5 airlines serving from Boston to Castries

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 Boston 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.
8.0
DeltaOverall score based on 7934 reviews
8.2Boarding
8.5Crew
7.9Entertainment
7.3Food
7.9Comfort
Airline reviews

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

6.0 GoodTina, Apr 2025MSP - CLT
Read more Delta reviews

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

Excellent from start to finish. All staff members were amazing!

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.

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

It was too hot in the cabin. The AC did not help.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

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.

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

Pitch was very small. Knees were on the seat back in front of me.

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

All was good except for the seats, not very comfy.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

This flight didn't happen for me because of overbooking.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

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

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