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Cheap flights from Boise to Castries from $915

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Castries departing on 8/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Boise to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:42 pm - 2:12 pm
BOI
-
UVF
12h 30m
1 stop
Delta Logo
3:28 pm - 3:01 pm
UVF
-
BOI
25h 33m
2 stops
$915Delta
Mon, Aug 3 - Tue, Aug 11
Delta Logo
11:45 pm - 2:13 pm
BOI
-
UVF
12h 28m
1 stop
Delta Logo
3:33 pm - 1:51 pm
UVF
-
BOI
24h 18m
2 stops
$918Delta
Fri, Jun 12 - Thu, Jun 18
American Airlines Logo
1:57 pm - 12:08 pm
BOI
-
UVF
20h 11m
2 stops
American Airlines Logo
3:04 pm - 12:44 pm
UVF
-
BOI
23h 40m
2 stops
$993American Airlines
Mon, Aug 3 - Tue, Aug 11
Delta Logo
11:42 pm - 2:12 pm
BOI
-
UVF
12h 30m
1 stop
Delta Logo
3:28 pm - 3:01 pm
UVF
-
BOI
25h 33m
2 stops
$1,000Delta
Mon, Aug 3 - Tue, Aug 11
Delta Logo
6:42 pm - 2:13 pm
BOI
-
UVF
17h 31m
2 stops
Delta Logo
3:33 pm - 2:51 pm
UVF
-
BOI
25h 18m
2 stops
$1,018Delta
Fri, Jun 12 - Thu, Jun 18
Delta Logo
11:45 pm - 2:13 pm
BOI
-
UVF
12h 28m
1 stop
Delta Logo
3:33 pm - 9:32 am
UVF
-
BOI
19h 59m
2 stops
$1,447Delta
Tue, Jun 9 - Sun, Jun 14
Delta Logo
6:08 pm - 2:13 pm
BOI
-
UVF
18h 05m
2 stops
Delta Logo
3:33 pm - 9:32 am
UVF
-
BOI
19h 59m
2 stops
$1,578Delta
Tue, Jun 9 - Sun, Jun 14
Delta Logo
11:45 pm - 2:13 pm
BOI
-
UVF
12h 28m
1 stop
Delta Logo
3:33 pm - 9:32 am
UVF
-
BOI
19h 59m
2 stops
$1,691Delta
Sun, Jun 7 - Sun, Jun 14
Delta Logo
12:51 pm - 2:13 pm
BOI
-
UVF
23h 22m
2 stops
Delta Logo
3:33 pm - 2:51 pm
UVF
-
BOI
25h 18m
2 stops
$1,990Delta
Sat, Jun 6 - Sat, Jun 13
Delta Logo
6:08 pm - 2:13 pm
BOI
-
UVF
18h 05m
2 stops
Delta Logo
3:33 pm - 9:32 am
UVF
-
BOI
19h 59m
2 stops
$2,103Delta
Sun, Jun 7 - Sun, Jun 14

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Delta flights from Boise to Castries

Our best Delta deals on Boise to Castries flight tickets
Delta
Aug 3
BOI11:42 pmBoise Air Term. Gowen Fld
12h 30m
1 stop
UVF2:12 pmCastries Hewanorra
Aug 11
UVF3:28 pmCastries Hewanorra
25h 33m
2 stops
BOI3:01 pmBoise Air Term. Gowen Fld
$915
Delta
Jun 12
BOI11:45 pmBoise Air Term. Gowen Fld
12h 28m
1 stop
UVF2:13 pmCastries Hewanorra
Jun 18
UVF3:33 pmCastries Hewanorra
24h 18m
2 stops
BOI1:51 pmBoise Air Term. Gowen Fld
$918
Delta
Aug 3
BOI11:42 pmBoise Air Term. Gowen Fld
12h 30m
1 stop
UVF2:12 pmCastries Hewanorra
Aug 11
UVF3:28 pmCastries Hewanorra
25h 33m
2 stops
BOI3:01 pmBoise Air Term. Gowen Fld
$1,000

American Airlines flights from Boise to Castries

Our best American Airlines deals on Boise to Castries flight tickets
American Airlines
Aug 3
BOI1:57 pmBoise Air Term. Gowen Fld
20h 11m
2 stops
UVF12:08 pmCastries Hewanorra
Aug 11
UVF3:04 pmCastries Hewanorra
23h 40m
2 stops
BOI12:44 pmBoise Air Term. Gowen Fld
$993
American Airlines
Jun 7
BOI5:40 pmBoise Air Term. Gowen Fld
18h 06m
2 stops
UVF1:46 pmCastries Hewanorra
Jun 14
UVF3:16 pmCastries Hewanorra
25h 04m
2 stops
BOI2:20 pmBoise Air Term. Gowen Fld
$2,849
American Airlines
Aug 3
BOI5:40 pmBoise Air Term. Gowen Fld
16h 28m
2 stops
UVF12:08 pmCastries Hewanorra
Aug 11
UVF3:04 pmCastries Hewanorra
22h 23m
3 stops
BOI11:27 amBoise Air Term. Gowen Fld
$2,906

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 23, 2026.
Use the filters below to find and compare flights from Boise to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

11:42 pm-2:12 pm

1 stop12h 30m

Castries Hewanorra

Tue 8/11

3:28 pm-3:01 pm

2 stops25h 33m

$915

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Fri 6/12

11:45 pm-2:13 pm

1 stop12h 28m

Castries Hewanorra

Thu 6/18

3:33 pm-1:51 pm

2 stops24h 18m

$918

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

1:57 pm-12:08 pm

2 stops20h 11m

Castries Hewanorra

Tue 8/11

3:04 pm-12:44 pm

2 stops23h 40m

$993

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

11:42 pm-2:12 pm

1 stop12h 30m

Castries Hewanorra

Tue 8/11

3:28 pm-3:01 pm

2 stops25h 33m

$1,000

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Fri 6/12

6:42 pm-2:13 pm

2 stops17h 31m

Castries Hewanorra

Thu 6/18

3:33 pm-2:51 pm

2 stops25h 18m

$1,018
Quickest round-trip

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Tue 6/9

11:45 pm-2:13 pm

1 stop12h 28m

Castries Hewanorra

Sun 6/14

3:33 pm-9:32 am

2 stops19h 59m

$1,447

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Tue 6/9

6:08 pm-2:13 pm

2 stops18h 05m

Castries Hewanorra

Sun 6/14

3:33 pm-9:32 am

2 stops19h 59m

$1,578

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sun 6/7

11:45 pm-2:13 pm

1 stop12h 28m

Castries Hewanorra

Sun 6/14

3:33 pm-9:32 am

2 stops19h 59m

$1,691

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sat 6/6

12:51 pm-2:13 pm

2 stops23h 22m

Castries Hewanorra

Sat 6/13

3:33 pm-2:51 pm

2 stops25h 18m

$1,990

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sun 6/7

6:08 pm-2:13 pm

2 stops18h 05m

Castries Hewanorra

Sun 6/14

3:33 pm-9:32 am

2 stops19h 59m

$2,103

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Boise to Castries

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Castries according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Castries (BOI to UVF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Castries

Fastest flight time

12h 28m

Direct flights

None
The fastest flight from Boise to Castries takes 12h 28m
There are no direct flights from Boise to Castries. There are no popular flight routes from Boise to Castries.
Search flight deals

Frequently asked questions about flying from Boise to Castries

  • How far is Boise Air Term. Gowen Fld to Castries Hewanorra by plane?

    Boise Air Term. Gowen Fld and Castries Hewanorra are 3825.5 mi apart from one another. By plane, this route typically takes 12h 28m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Castries Hewanorra Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Castries Hewanorra Airport refresh daily.

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Castries Hewanorra Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Castries Hewanorra Airport.

  • What documentation or ID do you need to fly to Castries Hewanorra Airport?

    The required travel and health documents for your Castries Hewanorra Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Castries Hewanorra Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Boise to Castries

  • How do I get Price Alerts for flights from Boise to Castries?

    Confirm your travel details to search for the latest offers for flights from Boise to Castries. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Boise to Castries with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Vieux Fort

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Castries?

It is quick and easy to find Boise to Castries flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Castries that suits you.

Can I find flights from Boise to Castries with flexible booking policies on momondo?

All flight searches from Boise to Castries on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boise to Castries?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Castries from Boise.

I’m not ready to book a flight from Boise to Castries right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Castries, momondo offers a useful price alert feature which will track prices for flights to Castries from Boise and alert you when they change.

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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport