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Saint Lucia

$472+ Cheap flights from Idaho to Saint Lucia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — UVF
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
1 adult, Economy
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Cheap flight deals from Idaho to Saint Lucia

Cheapest flights from Idaho to Saint Lucia
Explore the most affordable flight options available from Idaho to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2026.

This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/210:41 am
BOI
-
UVF
2 stops25h 24m
Delta
Thu 3/123:18 pm
UVF
-
BOI
2 stops32h 49m
Delta
Deal found 1/20$743
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:40 pm
GEG
-
UVF
1 stop12h 18m
Delta
Wed 3/253:18 pm
UVF
-
GEG
2 stops24h 52m
Delta
Deal found 1/19$743
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2611:30 pm
BOI
-
UVF
1 stop12h 28m
Delta
Wed 4/13:18 pm
UVF
-
BOI
2 stops31h 43m
Delta
Deal found 1/21$758
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:50 am
BOI
-
UVF
2 stops27h 15m
Delta
Thu 3/123:18 pm
UVF
-
BOI
2 stops29h 24m
Delta
Deal found 1/20$768
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2311:30 pm
BOI
-
UVF
1 stop12h 28m
Delta
Tue 3/313:18 pm
UVF
-
BOI
2 stops32h 53m
Delta
Deal found 1/21$783
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:54 pm
BOI
-
UVF
2 stops21h 11m
Delta
Mon 2/234:25 pm
UVF
-
BOI
2 stops31h 30m
Delta
Deal found 1/21$793
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2611:30 pm
BOI
-
UVF
1 stop12h 28m
Delta
Tue 3/313:18 pm
UVF
-
BOI
2 stops32h 53m
Delta
Deal found 1/21$798
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:20 am
BOI
-
UVF
2 stops30h 45m
Delta
Tue 2/244:25 pm
UVF
-
BOI
2 stops31h 30m
Delta
Deal found 1/21$803
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/34:05 pm
BOI
-
UVF
2 stops20h 05m
American Airlines
Tue 8/113:09 pm
UVF
-
BOI
2 stops23h 37m
American Airlines
Deal found 1/20$804
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:10 pm
GEG
-
UVF
2 stops20h 48m
American Airlines
Wed 3/253:58 pm
UVF
-
GEG
2 stops24h 59m
American Airlines
Deal found 1/19$804
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:30 am
BOI
-
UVF
2 stops28h 35m
Delta
Tue 2/244:25 pm
UVF
-
BOI
2 stops31h 30m
Delta
Deal found 1/21$808
This Air Canada deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:00 am
BOI
-
UVF
2 stops32h 25m
Air Canada
Thu 2/265:15 pm
UVF
-
BOI
2 stops33h 23m
Air Canada
Deal found 1/21$827

Find flight deals from Idaho to Saint Lucia

Keep the following information in mind while searching for Idaho to Saint Lucia flight deals. Data was last updated January 22, 2026.

Round-trip from

$743
(Delta)

One-way from

$472
(Gotogate)
From Idaho to Saint Lucia
Search Deals
One-way flight from Idaho to Saint Lucia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Saint Lucia 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, Cheapflights users made 2,558,603 searches. Data last updated January 22, 2026.
Use the filters below to find and compare flights from Idaho to Saint Lucia that are best for you.

Fly from

Idaho

Fly to

Saint Lucia

Route

Depart

Return

Price

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Wed 3/4

3:01 pm-3:05 pm

2 stops21h 04m

Castries Hewanorra

Tue 3/10

3:18 pm-9:09 pm

2 stops31h 51m

$743

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Tue 3/3

10:41 am-3:05 pm

2 stops25h 24m

Castries Hewanorra

Wed 3/11

3:18 pm-2:04 pm

2 stops24h 46m

$743

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Tue 3/3

1:51 pm-3:05 pm

2 stops22h 14m

Castries Hewanorra

Thu 3/12

3:18 pm-2:04 pm

2 stops24h 46m

$743

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Mon 3/23

7:30 am-1:58 pm

2 stops28h 28m

Castries Hewanorra

Wed 4/1

3:18 pm-2:04 pm

2 stops24h 46m

$743

SpokaneCastries

GEG - UVF

GEGUVF

Spokane

Tue 3/17

10:40 pm-1:58 pm

1 stop12h 18m

Castries Hewanorra

Wed 3/25

3:18 pm-1:10 pm

2 stops24h 52m

$743

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Thu 3/5

10:45 am-3:05 pm

2 stops25h 20m

Castries Hewanorra

Thu 3/12

3:18 pm-6:42 pm

2 stops29h 24m

$768

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Wed 3/4

1:51 pm-3:05 pm

2 stops22h 14m

Castries Hewanorra

Mon 3/9

3:18 pm-9:00 pm

2 stops31h 42m

$768

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Tue 3/3

12:59 pm-3:05 pm

2 stops23h 06m

Castries Hewanorra

Mon 3/9

3:18 pm-9:09 pm

2 stops31h 51m

$768

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Sat 2/28

8:50 am-3:05 pm

2 stops27h 15m

Castries Hewanorra

Thu 3/12

3:18 pm-6:42 pm

2 stops29h 24m

$768

BoiseCastries

BOI - UVF

BOIUVF

Boise Air Term. Gowen Fld

Thu 3/5

10:45 am-3:05 pm

2 stops25h 20m

Castries Hewanorra

Wed 3/11

3:18 pm-9:00 pm

2 stops31h 42m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 26 results
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Best time to book a flight from Idaho to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Saint Lucia
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Idaho to Saint Lucia?

    Airlines like Delta and American Airlines fly from Idaho to Saint Lucia in about 20h 48m. The time it takes to get you to your destination can typically vary by up to 16m. The distance from Idaho to Saint Lucia is about 3976 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Idaho to Saint Lucia that include hotel bookings?

    Yes. In addition to deals on Idaho to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Saint Lucia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Saint Lucia.

  • Can I find deals for business class flights from Idaho to Saint Lucia?

    Yes. Cheapflights offers flight deals from Idaho to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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