Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Boise to Castries from $414

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 10/18. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Boise to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:19 pm - 1:49 pm
BOI
-
UVF
20h 30m
2 stops
American Airlines Logo
3:19 pm - 2:29 pm
UVF
-
BOI
25h 10m
2 stops
$801American Airlines
Thu, Aug 27 - Thu, Sep 3
American Airlines Logo
1:50 pm - 2:02 pm
BOI
-
UVF
22h 12m
2 stops
American Airlines Logo
3:02 pm - 2:31 pm
UVF
-
BOI
25h 29m
2 stops
$801American Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
12:12 pm - 1:49 pm
BOI
-
UVF
23h 37m
2 stops
American Airlines Logo
2:49 pm - 2:29 pm
UVF
-
BOI
25h 40m
2 stops
$806American Airlines
Wed, Aug 26 - Wed, Sep 2
American Airlines Logo
2:41 pm - 3:03 pm
BOI
-
UVF
22h 22m
2 stops
American Airlines Logo
4:04 pm - 11:25 am
UVF
-
BOI
21h 21m
2 stops
$951American Airlines
Sun, Oct 18 - Sat, Oct 24
Delta Logo
11:10 pm - 2:12 pm
BOI
-
UVF
13h 02m
1 stop
Delta Logo
3:32 pm - 2:47 pm
UVF
-
BOI
25h 15m
2 stops
$1,013Delta
Sun, Oct 18 - Mon, Oct 26
Delta Logo
5:59 pm - 2:12 pm
BOI
-
UVF
18h 13m
2 stops
Delta Logo
3:32 pm - 5:14 pm
UVF
-
BOI
27h 42m
2 stops
$1,013Delta
Thu, Oct 15 - Sat, Oct 24
Delta Logo
3:36 pm - 2:12 pm
BOI
-
UVF
20h 36m
2 stops
Delta Logo
3:32 pm - 2:47 pm
UVF
-
BOI
25h 15m
2 stops
$1,013Delta
Fri, Oct 16 - Tue, Oct 27
Delta Logo
10:34 am - 2:12 pm
BOI
-
UVF
25h 38m
2 stops
Delta Logo
3:32 pm - 12:35 pm
UVF
-
BOI
23h 03m
2 stops
$1,013Delta
Sat, Oct 17 - Tue, Oct 27
Delta Logo
11:10 pm - 2:12 pm
BOI
-
UVF
13h 02m
1 stop
Delta Logo
3:32 pm - 10:08 pm
UVF
-
BOI
32h 36m
2 stops
$1,013Delta
Fri, Oct 16 - Thu, Oct 22
Delta Logo
3:36 pm - 2:12 pm
BOI
-
UVF
20h 36m
2 stops
Delta Logo
3:32 pm - 5:14 pm
UVF
-
BOI
27h 42m
2 stops
$1,013Delta
Sat, Oct 17 - Sat, Oct 24

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air Canada flights from Boise to Castries

Our best Air Canada deals on Boise to Castries flight tickets
Air Canada
Jan 19
BOI7:00 amBoise Air Term. Gowen Fld
30h 40m
2 stops
UVF4:40 pmCastries Hewanorra
Jan 22
UVF5:40 pmCastries Hewanorra
33h 19m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$1,045
Air Canada
Jan 19
BOI7:00 amBoise Air Term. Gowen Fld
30h 40m
2 stops
UVF4:40 pmCastries Hewanorra
Jan 22
UVF5:40 pmCastries Hewanorra
27h 15m
2 stops
BOI5:55 pmBoise Air Term. Gowen Fld
$1,078

American Airlines flights from Boise to Castries

Our best American Airlines deals on Boise to Castries flight tickets
American Airlines
Aug 27
BOI3:19 pmBoise Air Term. Gowen Fld
20h 30m
2 stops
UVF1:49 pmCastries Hewanorra
Sep 3
UVF3:19 pmCastries Hewanorra
25h 10m
2 stops
BOI2:29 pmBoise Air Term. Gowen Fld
$801
American Airlines
Aug 26
BOI12:12 pmBoise Air Term. Gowen Fld
23h 37m
2 stops
UVF1:49 pmCastries Hewanorra
Sep 2
UVF2:49 pmCastries Hewanorra
25h 40m
2 stops
BOI2:29 pmBoise Air Term. Gowen Fld
$806
American Airlines
Oct 18
BOI2:41 pmBoise Air Term. Gowen Fld
22h 22m
2 stops
UVF3:03 pmCastries Hewanorra
Oct 24
UVF4:04 pmCastries Hewanorra
21h 21m
2 stops
BOI11:25 amBoise Air Term. Gowen Fld
$951

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 July 28, 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

Thu 8/27

3:19 pm-1:49 pm

2 stops20h 30m

Castries Hewanorra

Thu 9/3

3:19 pm-2:29 pm

2 stops25h 10m

$801

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Thu 9/10

1:50 pm-2:02 pm

2 stops22h 12m

Castries Hewanorra

Thu 9/17

3:02 pm-2:31 pm

2 stops25h 29m

$801

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Wed 8/26

12:12 pm-1:49 pm

2 stops23h 37m

Castries Hewanorra

Wed 9/2

2:49 pm-2:29 pm

2 stops25h 40m

$806

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sun 10/18

2:41 pm-3:03 pm

2 stops22h 22m

Castries Hewanorra

Sat 10/24

4:04 pm-11:25 am

2 stops21h 21m

$951
Quickest round-trip

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sun 10/18

11:10 pm-2:12 pm

1 stop13h 02m

Castries Hewanorra

Mon 10/26

3:32 pm-2:47 pm

2 stops25h 15m

$1,013

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Thu 10/15

5:59 pm-2:12 pm

2 stops18h 13m

Castries Hewanorra

Sat 10/24

3:32 pm-5:14 pm

2 stops27h 42m

$1,013

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Fri 10/16

3:36 pm-2:12 pm

2 stops20h 36m

Castries Hewanorra

Tue 10/27

3:32 pm-2:47 pm

2 stops25h 15m

$1,013

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sat 10/17

10:34 am-2:12 pm

2 stops25h 38m

Castries Hewanorra

Tue 10/27

3:32 pm-12:35 pm

2 stops23h 03m

$1,013

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Fri 10/16

11:10 pm-2:12 pm

1 stop13h 02m

Castries Hewanorra

Thu 10/22

3:32 pm-10:08 pm

2 stops32h 36m

$1,013

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sat 10/17

3:36 pm-2:12 pm

2 stops20h 36m

Castries Hewanorra

Sat 10/24

3:32 pm-5:14 pm

2 stops27h 42m

$1,013

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

Delta and United 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

16h 59m

Direct flights

None
The fastest flight from Boise to Castries takes 16h 59m
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 16h 59m.

  • 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 8/27
Thu 9/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport