Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

BOS - UVF

Find cheap flights from Boston to Castries from $201

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 6/11. 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
0 bags
Mon 6/3
Mon 6/10

Search 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Castries.
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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

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

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

Cheap flight deals from Boston to Castries (BOS-UVF)

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:11 pm - 12:35 pmBOS-UVF
18h 24m1 stop
3:39 pm - 12:43 amUVF-BOS
9h 04m1 stop
$452American Airlines
Find Deal
Sat, Aug 3 - Thu, Aug 29
5:31 pm - 12:35 pmBOS-UVF
19h 04m2 stops
3:39 pm - 9:39 amUVF-BOS
18h 00m2 stops
$457American Airlines
Find Deal
Sat, Aug 3 - Wed, Aug 7
6:16 pm - 12:25 pmBOS-UVF
18h 09m1 stop
1:35 pm - 10:42 pmUVF-BOS
9h 07m1 stop
$479American Airlines
Find Deal
Mon, Jul 1 - Sat, Jul 13
6:10 pm - 12:40 pmBOS-UVF
18h 30m1 stop
3:39 pm - 9:18 amUVF-BOS
17h 39m2 stops
$482American Airlines
Find Deal
Sat, Aug 24 - Mon, Aug 26
6:00 am - 1:31 pmBOS-UVF
7h 31m1 stop
2:35 pm - 10:54 pmUVF-BOS
8h 19m1 stop
$496United Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
6:00 am - 2:20 pmBOS-UVF
8h 20m1 stop
3:40 pm - 9:35 amUVF-BOS
17h 55m1 stop
$514Delta
Find Deal
Wed, Oct 23 - Wed, Oct 30
5:45 am - 1:39 pmBOS-UVF
7h 54m1 stop
3:01 pm - 12:22 amUVF-BOS
9h 21m1 stop
$515JetBlue
Find Deal
Fri, May 31 - Fri, Jun 7
4:05 pm - 2:30 pmBOS-UVF
22h 25m1 stop
3:30 pm - 9:28 amUVF-BOS
17h 58m1 stop
$519Air Canada
Find Deal
Sat, Jun 1 - Wed, Jun 5
7:40 pm - 2:30 pmBOS-UVF
18h 50m1 stop
3:30 pm - 10:38 pmUVF-BOS
31h 08m1 stop
$521Air Canada
Find Deal
Sat, Jun 1 - Sun, Jun 9
2:40 pm - 10:31 pmBOS-UVF
7h 51m1 stop
11:59 pm - 9:21 amUVF-BOS
9h 22m1 stop
$605JetBlue
Find Deal
Sun, Jun 30 - Sun, Jul 7

Flights from Boston to Castries - Travel Insights & Trends

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 flights from Boston to Castries clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Castries on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Boston to Castries. For your return ticket, we recommend flying on a Monday and avoiding Wednesdays for the best deals.

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 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 September, where tickets cost $632 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $1,262 and $1,076 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Boston to Castries, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 88 days before departure.

Which cabin class options are there for flights between Boston and Castries?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Good to know

Low season

September

High season

February

Cheapest flight

$201
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 15% 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 $201 for a one-way ticket and $452 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?

    oneworld, Star Alliance, and SkyTeam 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 JetBlue?

    The two airlines most popular with KAYAK users for flights from Boston to Castries are Delta and JetBlue. With an average price for the route of $653 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $775 and an overall rating of 7.6.

  • 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.

See more FAQs

Top tips for finding a cheap flight from BOS to Castries

  • Looking for a cheap flight? 25% of our users found flights on this route for $556 or less round-trip.

Top 4 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 10838 reviews
8.2Boarding
8.6Crew
8.0Entertainment
7.4Food
7.9Comfort
Airline reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

10.0 ExcellentAllan, May 2024SUN - SLC
Read more about Delta reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

The boarding and flight were ok, but there were several painful issues. The flight was 3:20 in the air and almost four hours door to door, but they only had snack packs on the plane. They really need to have food on longer flights or make it clear to everyone that they won’t have food. They also advertise free WiFi, but it did not work for 90% of this flight. Again, almost four hours door to door. If I had known I was flying spirit for JetBlue prices then I would have planned differently.

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

I was in business class. There was an excellent headset. But half an hour before arrival they collected them! The rest of the trip I had to use a cheap earphone. There must be a better way to protect the headphones.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Too bad that first class seats do not recline significantly causing discomfort

I think the seats on some of their planes are uncomfortable. You can be ok on a short flight of two hours but no more than that. The delays, and also the refreshments on the plane were not enough.

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

Easy boarding, roomy seats, plenty of good food, very helpful snd friendly staff. Very smooth flight! Only thing that could have been better was to have cranberry juice. Women like this as it helps avoid UTI’s and not as sweet as other juices.

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Book cheap flights from Boston to Castries

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Castries found on KAYAK in the last 72 hours.
6/11Tue
1 stopAmerican Airlines
7h 42mBOS-UVF
$201
6/11Tue
2 stopsAmerican Airlines
19h 25mBOS-UVF
$203
8/1Thu
2 stopsAmerican Airlines
24h 30mBOS-UVF
$262
7/4Thu
3 stops
49h 45mBOS-UVF
$608
6/11Tue
3 stops
27h 49mBOS-UVF
$617

Search by stops

Search by airline

Search by price

Boston - Castries Flights

Departure:

Boston (BOS)United States

Destination:

Castries (UVF)Saint Lucia

Return flight deals:

Castries - Boston

Cabin classes:

$2,571
$481