$737+ Cheap flights from Idaho to Saint Lucia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — UVF
Jan 6 — Jan 131
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Saint Lucia
Cheapest flights from Idaho to Saint LuciaExplore 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 December 7, 2025.
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 December 7, 2025.
This Delta deal was found by Cheapflights users on 12/5. 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 12/143:13 pmBOI - UVF
2 stops21h 23mDelta
Sun 12/214:50 pmUVF - BOI
2 stops24h 28mDelta
Deal found 12/5![Delta logo]()
$1,154
This American Airlines deal was found by Cheapflights users on 12/6. 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.
Sun 12/145:25 pmBOI - UVF
2 stops19h 28mAmerican Airlines
Sun 12/214:54 pmUVF - BOI
2 stops23h 11mAmerican Airlines
Deal found 12/6![American Airlines logo]()
$1,236
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 December 7, 2025.
Round-trip from | $737 (American Airlines) |
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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 December 7, 2025.
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
Mon 1/19
2:48 pm-4:02 pm
2 stops22h 14m
Castries Hewanorra
Mon 1/26
2:46 pm-12:07 pm
2 stops24h 21m
$737
BoiseCastries
BOI - UVF
BOIUVF
Boise Air Term. Gowen Fld
Thu 2/26
7:02 pm-4:00 pm
2 stops17h 58m
Castries Hewanorra
Mon 3/2
4:25 pm-12:13 pm
2 stops22h 48m
$752
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
What is the cheapest time of day to fly from ID to LC?
Find hourly flight availability from Idaho to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 7, 2025.
When flying from Idaho to Saint Lucia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 10% versus a flight in the afternoon.