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Cheap flights from Boise to Castries from $326

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Castries departing on 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boise to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:58 pm - 2:10 pm
BOI
-
UVF
21h 12m
2 stops
American Airlines Logo
3:15 pm - 11:29 am
UVF
-
BOI
22h 14m
2 stops
$753American Airlines
Mon, Aug 3 - Tue, Aug 11
American Airlines Logo
5:14 pm - 2:15 pm
BOI
-
UVF
19h 01m
2 stops
American Airlines Logo
3:15 pm - 11:29 am
UVF
-
BOI
22h 14m
2 stops
$778American Airlines
Sat, Aug 15 - Sat, Aug 22
Air Canada Logo
2:37 pm - 3:25 pm
BOI
-
UVF
22h 48m
2 stops
Air Canada Logo
4:15 pm - 11:06 am
UVF
-
BOI
44h 51m
2 stops
$781Air Canada
Wed, Apr 1 - Mon, Apr 6
American Airlines Logo
2:58 pm - 2:10 pm
BOI
-
UVF
21h 12m
2 stops
American Airlines Logo
3:15 pm - 12:46 pm
UVF
-
BOI
23h 31m
2 stops
$798American Airlines
Mon, Aug 3 - Tue, Aug 11
Delta Logo
11:40 pm - 1:58 pm
BOI
-
UVF
12h 18m
1 stop
Delta Logo
3:18 pm - 6:43 pm
UVF
-
BOI
29h 25m
2 stops
$808Delta
Wed, Apr 1 - Mon, Apr 6
Delta Logo
11:30 pm - 2:13 pm
BOI
-
UVF
12h 43m
1 stop
Delta Logo
3:28 pm - 2:03 pm
UVF
-
BOI
24h 35m
2 stops
$888Delta
Mon, Aug 3 - Tue, Aug 11
American Airlines Logo
12:16 pm - 12:02 pm
BOI
-
UVF
21h 46m
2 stops
American Airlines Logo
1:02 pm - 10:49 pm
UVF
-
BOI
35h 47m
2 stops
$889American Airlines
Mon, Jun 8 - Thu, Jun 18
American Airlines Logo
12:16 pm - 12:02 pm
BOI
-
UVF
21h 46m
2 stops
American Airlines Logo
1:02 pm - 2:20 pm
UVF
-
BOI
27h 18m
2 stops
$890American Airlines
Mon, Jun 8 - Tue, Jun 16
American Airlines Logo
4:10 pm - 12:02 pm
BOI
-
UVF
41h 52m
2 stops
American Airlines Logo
1:02 pm - 10:49 pm
UVF
-
BOI
35h 47m
2 stops
$903American Airlines
Sun, Jun 7 - Thu, Jun 18
Delta Logo
11:30 pm - 2:13 pm
BOI
-
UVF
12h 43m
1 stop
Delta Logo
3:28 pm - 3:01 pm
UVF
-
BOI
25h 33m
2 stops
$908Delta
Mon, Aug 3 - Tue, Aug 11

American Airlines flights from Boise to Castries

Our best American Airlines deals on Boise to Castries flight tickets
American Airlines
Aug 3
BOI2:58 pmBoise Air Term. Gowen Fld
21h 12m
2 stops
UVF2:10 pmCastries Hewanorra
Aug 11
UVF3:15 pmCastries Hewanorra
22h 14m
2 stops
BOI11:29 amBoise Air Term. Gowen Fld
$753
American Airlines
Aug 15
BOI5:14 pmBoise Air Term. Gowen Fld
19h 01m
2 stops
UVF2:15 pmCastries Hewanorra
Aug 22
UVF3:15 pmCastries Hewanorra
22h 14m
2 stops
BOI11:29 amBoise Air Term. Gowen Fld
$778
American Airlines
Aug 3
BOI2:58 pmBoise Air Term. Gowen Fld
21h 12m
2 stops
UVF2:10 pmCastries Hewanorra
Aug 11
UVF3:15 pmCastries Hewanorra
23h 31m
2 stops
BOI12:46 pmBoise Air Term. Gowen Fld
$798

Delta flights from Boise to Castries

Our best Delta deals on Boise to Castries flight tickets
Delta
Apr 1
BOI11:40 pmBoise Air Term. Gowen Fld
12h 18m
1 stop
UVF1:58 pmCastries Hewanorra
Apr 6
UVF3:18 pmCastries Hewanorra
29h 25m
2 stops
BOI6:43 pmBoise Air Term. Gowen Fld
$808
Delta
Aug 3
BOI11:30 pmBoise Air Term. Gowen Fld
12h 43m
1 stop
UVF2:13 pmCastries Hewanorra
Aug 11
UVF3:28 pmCastries Hewanorra
24h 35m
2 stops
BOI2:03 pmBoise Air Term. Gowen Fld
$888
Delta
Aug 3
BOI11:30 pmBoise Air Term. Gowen Fld
12h 43m
1 stop
UVF2:13 pmCastries Hewanorra
Aug 11
UVF3:28 pmCastries Hewanorra
25h 33m
2 stops
BOI3:01 pmBoise Air Term. Gowen Fld
$908

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 March 3, 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

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

2:58 pm-2:10 pm

2 stops21h 12m

Castries Hewanorra

Tue 8/11

3:15 pm-11:29 am

2 stops22h 14m

$753

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sat 8/15

5:14 pm-2:15 pm

2 stops19h 01m

Castries Hewanorra

Sat 8/22

3:15 pm-11:29 am

2 stops22h 14m

$778

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Wed 4/1

2:37 pm-3:25 pm

2 stops22h 48m

Castries Hewanorra

Mon 4/6

4:15 pm-11:06 am

2 stops44h 51m

$781

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

2:58 pm-2:10 pm

2 stops21h 12m

Castries Hewanorra

Tue 8/11

3:15 pm-12:46 pm

2 stops23h 31m

$798

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Wed 4/1

11:40 pm-1:58 pm

1 stop12h 18m

Castries Hewanorra

Mon 4/6

3:18 pm-6:43 pm

2 stops29h 25m

$808

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

11:30 pm-2:13 pm

1 stop12h 43m

Castries Hewanorra

Tue 8/11

3:28 pm-2:03 pm

2 stops24h 35m

$888

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 6/8

12:16 pm-12:02 pm

2 stops21h 46m

Castries Hewanorra

Thu 6/18

1:02 pm-10:49 pm

2 stops35h 47m

$889

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 6/8

12:16 pm-12:02 pm

2 stops21h 46m

Castries Hewanorra

Tue 6/16

1:02 pm-2:20 pm

2 stops27h 18m

$890

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sun 6/7

4:10 pm-12:02 pm

2 stops41h 52m

Castries Hewanorra

Thu 6/18

1:02 pm-10:49 pm

2 stops35h 47m

$903

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 8/3

11:30 pm-2:13 pm

1 stop12h 43m

Castries Hewanorra

Tue 8/11

3:28 pm-3:01 pm

2 stops25h 33m

$908

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Castries from

How to get the cheapest flight ticket from Boise to Castries

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Castries Hewanorra?

Air Canada, Delta, and American Airlines are the most popular carriers operating from Boise Air Term. Gowen Fld to Castries Hewanorra

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 18m

Direct flights

None
The fastest flight from Boise to Castries takes 12h 18m
There are no direct flights from Boise to Castries. There are no popular flight routes from Boise to Castries.
Search flight deals

  • 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 18m.

  • 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.

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.

An easier way to manage your Castries trip

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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport