$212+ Cheap flights from Idaho to Caribbean Islands
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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from Idaho to Caribbean Islands with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Caribbean Islands
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Cheapest flights from Idaho to Caribbean IslandsExplore the most affordable flight options available from Idaho to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Idaho to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Delta deal was found by Cheapflights users on 2/3. 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 10/275:45 pm
BOI
- SJU
2 stops16h 11m
Delta
Sat 10/3112:46 pm
SJU
- BOI
2 stops12h 49m
Delta
Deal found 2/3![Delta logo]()
$416
This American Airlines deal was found by Cheapflights users on 2/1. 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 4/216:00 am
GEG
- SJU
1 stop14h 02m
American Airlines
Tue 4/287:00 pm
SJU
- GEG
2 stops22h 19m
American Airlines
Deal found 2/1![American Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 2/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:55 pm
BOI
- SJU
2 stops13h 40m
Southwest
Mon 5/1810:00 am
SJU
- BOI
2 stops16h 45m
Southwest
Deal found 2/2![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 2/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:50 pm
GEG
- SJU
2 stops15h 05m
Southwest
Mon 5/116:50 am
SJU
- GEG
2 stops18h 25m
Southwest
Deal found 2/2![Southwest logo]()
$450
This Southwest deal was found by Cheapflights users on 1/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
GEG
- SJU
2 stops15h 15m
Southwest
Tue 3/1710:10 am
SJU
- GEG
2 stops14h 25m
Southwest
Deal found 1/31![Southwest logo]()
$462
This American Airlines deal was found by Cheapflights users on 1/31. 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 2/2412:25 pm
GEG
- SJU
2 stops17h 35m
American Airlines
Tue 3/38:00 am
SJU
- GEG
2 stops12h 54m
American Airlines
Deal found 1/31![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 4/256:00 am
GEG
- SJU
1 stop19h 32m
American Airlines
Thu 4/306:45 am
SJU
- GEG
1 stop16h 48m
American Airlines
Deal found 2/3![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 1/31. 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 3/246:00 am
GEG
- SJU
1 stop13h 31m
American Airlines
Tue 3/316:33 am
SJU
- GEG
1 stop13h 21m
American Airlines
Deal found 1/31![American Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 2/3. 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 3/26:35 pm
BOI
- NAS
2 stops16h 58m
Delta
Mon 3/93:05 pm
NAS
- BOI
2 stops10h 54m
Delta
Deal found 2/3![Delta logo]()
$484
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/236:33 pm
BOI
- SJU
2 stops12h 27m
American Airlines
Tue 3/316:33 am
SJU
- BOI
1 stop17h 50m
American Airlines
Deal found 2/1![American Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 2/1. 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 4/286:00 am
GEG
- SJU
1 stop14h 02m
American Airlines
Tue 5/55:45 am
SJU
- GEG
2 stops14h 10m
American Airlines
Deal found 2/1![American Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:55 pm
BOI
- SJU
2 stops16h 45m
United Airlines
Wed 3/48:30 am
SJU
- BOI
2 stops16h 02m
United Airlines
Deal found 1/31![United Airlines logo]()
$506
Best flights from Idaho to Caribbean IslandsDiscover carefully curated flight deals from Idaho to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Idaho to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:00 am
BOI
- SJU
2 stops13h 05m
Southwest
Tue 5/125:05 am
SJU
- BOI
2 stops15h 55m
Southwest
Deal found 2/1![Southwest logo]()
$416
This Delta deal was found by Cheapflights users on 2/1. 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 4/256:00 am
GEG
- SJU
2 stops14h 12m
Delta
Thu 4/307:30 am
SJU
- GEG
2 stops16h 35m
Delta
Deal found 2/1![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:00 am
GEG
- SJU
2 stops15h 36m
United Airlines
Tue 3/32:25 pm
SJU
- GEG
1 stop10h 52m
United Airlines
Deal found 1/31![United Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 2/1. 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 4/216:34 am
GEG
- SJU
2 stops13h 28m
American Airlines
Tue 4/285:45 am
SJU
- GEG
2 stops14h 10m
American Airlines
Deal found 2/1![American Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 2/2. 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 4/146:00 am
GEG
- SJU
1 stop14h 02m
American Airlines
Fri 4/246:45 am
SJU
- GEG
1 stop16h 48m
American Airlines
Deal found 2/2![American Airlines logo]()
$424
This Air Canada deal was found by Cheapflights users on 1/31. 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.
Mon 3/212:38 pm
GEG
- BGI
2 stops21h 57m
Air Canada
Thu 3/54:10 pm
BGI
- GEG
2 stops32h 53m
Air Canada
Deal found 1/31![Air Canada logo]()
$909
This Southwest deal was found by Cheapflights users on 1/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
GEG
- SJU
2 stops15h 15m
Southwest
Tue 3/1710:10 am
SJU
- GEG
2 stops14h 25m
Southwest
Deal found 1/31![Southwest logo]()
$462
This Delta deal was found by Cheapflights users on 2/3. 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 3/26:35 pm
BOI
- NAS
2 stops15h 15m
Delta
Mon 3/91:18 pm
NAS
- BOI
1 stop11h 07m
Delta
Deal found 2/3![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:34 am
BOI
- SJU
1 stop10h 00m
United Airlines
Tue 5/121:40 pm
SJU
- BOI
1 stop9h 37m
United Airlines
Deal found 2/1![United Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/236:33 pm
BOI
- SJU
2 stops12h 27m
American Airlines
Tue 3/316:33 am
SJU
- BOI
1 stop17h 50m
American Airlines
Deal found 2/1![American Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:55 pm
BOI
- SJU
2 stops16h 45m
United Airlines
Wed 3/48:30 am
SJU
- BOI
2 stops16h 02m
United Airlines
Deal found 1/31![United Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 2/2. 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 4/3011:35 pm
BOI
- NAS
1 stop14h 58m
Delta
Mon 5/43:28 pm
NAS
- BOI
1 stop9h 00m
Delta
Deal found 2/2![Delta logo]()
$516
This American Airlines deal was found by Cheapflights users on 2/2. 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 4/281:19 pm
GEG
- SJU
2 stops18h 29m
American Airlines
Tue 5/55:45 am
SJU
- GEG
2 stops14h 10m
American Airlines
Deal found 2/2![American Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:59 pm
BOI
- NAS
2 stops16h 48m
United Airlines
Thu 7/93:59 pm
NAS
- BOI
2 stops19h 50m
United Airlines
Deal found 2/2![United Airlines logo]()
$520
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 4/253:15 pm
GEG
- SJU
2 stops14h 58m
American Airlines
Thu 4/3011:38 am
SJU
- GEG
2 stops14h 32m
American Airlines
Deal found 2/3![American Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 2/2. 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 3/1911:30 pm
BOI
- NAS
1 stop15h 15m
Delta
Thu 3/263:05 pm
NAS
- BOI
1 stop9h 20m
Delta
Deal found 2/2![Delta logo]()
$560
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 2/273:10 pm
GEG
- SJU
2 stops16h 46m
American Airlines
Fri 3/67:33 am
SJU
- GEG
1 stop17h 39m
American Airlines
Deal found 2/1![American Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:00 am
GEG
- PUJ
1 stop9h 35m
United Airlines
Fri 5/224:00 pm
PUJ
- GEG
2 stops23h 36m
United Airlines
Deal found 2/3![United Airlines logo]()
$569
This Delta deal was found by Cheapflights users on 2/2. 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 4/2110:40 pm
GEG
- PUJ
1 stop9h 55m
Delta
Thu 4/301:00 pm
PUJ
- GEG
1 stop11h 31m
Delta
Deal found 2/2![Delta logo]()
$605
This American Airlines deal was found by Cheapflights users on 2/3. 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 5/262:58 pm
BOI
- NAS
1 stop18h 43m
American Airlines
Tue 6/26:29 pm
NAS
- BOI
1 stop19h 00m
American Airlines
Deal found 2/3![American Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:59 pm
BOI
- NAS
2 stops16h 48m
United Airlines
Wed 7/83:59 pm
NAS
- BOI
2 stops19h 50m
United Airlines
Deal found 2/2![United Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:59 pm
BOI
- NAS
2 stops16h 48m
United Airlines
Fri 7/103:59 pm
NAS
- BOI
2 stops19h 50m
United Airlines
Deal found 2/3![United Airlines logo]()
$580
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 4/1511:35 pm
BOI
- SDQ
1 stop11h 37m
Delta
Wed 4/222:37 pm
SDQ
- BOI
1 stop9h 51m
Delta
Deal found 2/1![Delta logo]()
$639
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 2/281:30 pm
BOI
- SJU
1 stop12h 54m
American Airlines
Wed 3/47:00 am
SJU
- BOI
2 stops18h 22m
American Airlines
Deal found 2/1![American Airlines logo]()
$529
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 3/183:00 pm
BOI
- PUJ
2 stops19h 08m
Delta
Wed 3/253:50 pm
PUJ
- BOI
2 stops19h 37m
Delta
Deal found 2/1![Delta logo]()
$649
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:02 am
BOI
- NAS
2 stops27h 45m
United Airlines
Mon 5/43:59 pm
NAS
- BOI
1 stop8h 46m
United Airlines
Deal found 2/2![United Airlines logo]()
$594
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 4/236:00 am
GEG
- SJU
1 stop14h 02m
American Airlines
Mon 4/2711:59 pm
SJU
- GEG
2 stops17h 20m
American Airlines
Deal found 2/2![American Airlines logo]()
$545
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 7/12:58 pm
BOI
- NAS
1 stop18h 43m
American Airlines
Thu 7/96:29 pm
NAS
- BOI
1 stop19h 00m
American Airlines
Deal found 2/2![American Airlines logo]()
$547
This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:29 pm
BOI
- PUJ
2 stops20h 01m
United Airlines
Tue 4/71:25 pm
PUJ
- BOI
1 stop9h 57m
United Airlines
Deal found 1/31![United Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 1/31. 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 2/262:54 pm
BOI
- SDQ
2 stops20h 23m
Delta
Sat 3/73:42 pm
SDQ
- BOI
2 stops20h 12m
Delta
Deal found 1/31![Delta logo]()
$713
Last-minute flights from Idaho to Caribbean IslandsDiscover last-minute flight deals from Idaho to Caribbean Islands. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Caribbean Islands. Data last updated February 3, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/187:00 am
BOI
- SJU
1 stop13h 31m
American Airlines
Tue 3/37:00 am
SJU
- BOI
2 stops18h 22m
American Airlines
Deal found 2/2![American Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:00 am
GEG
- SJU
2 stops15h 36m
United Airlines
Tue 3/32:25 pm
SJU
- GEG
1 stop10h 52m
United Airlines
Deal found 1/31![United Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 1/31. 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 2/2412:25 pm
GEG
- SJU
2 stops17h 35m
American Airlines
Tue 3/38:00 am
SJU
- GEG
2 stops12h 54m
American Airlines
Deal found 1/31![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 2/2712:25 pm
GEG
- SJU
1 stop12h 59m
American Airlines
Fri 3/67:33 am
SJU
- GEG
1 stop17h 39m
American Airlines
Deal found 2/1![American Airlines logo]()
$515
This Delta deal was found by Cheapflights users on 2/3. 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 3/26:35 pm
BOI
- NAS
2 stops16h 58m
Delta
Mon 3/93:05 pm
NAS
- BOI
2 stops10h 54m
Delta
Deal found 2/3![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:25 am
BOI
- SJU
1 stop9h 00m
United Airlines
Wed 3/47:40 am
SJU
- BOI
2 stops16h 15m
United Airlines
Deal found 2/1![United Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 3/71:41 pm
BOI
- SJU
2 stops16h 19m
American Airlines
Tue 3/101:30 am
SJU
- BOI
1 stop13h 18m
American Airlines
Deal found 2/2![American Airlines logo]()
$519
This Southwest deal was found by Cheapflights users on 1/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
GEG
- SJU
2 stops15h 15m
Southwest
Tue 3/1710:10 am
SJU
- GEG
2 stops14h 25m
Southwest
Deal found 1/31![Southwest logo]()
$462
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Wed 3/116:00 am
GEG
- SJU
2 stops13h 58m
American Airlines
Tue 3/176:00 am
SJU
- GEG
2 stops13h 54m
American Airlines
Deal found 2/3![American Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 1/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:37 pm
GEG
- SJU
2 stops14h 12m
United Airlines
Tue 3/171:25 pm
SJU
- GEG
1 stop10h 53m
United Airlines
Deal found 1/31![United Airlines logo]()
$531
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/236:33 pm
BOI
- SJU
2 stops12h 27m
American Airlines
Tue 3/316:33 am
SJU
- BOI
1 stop17h 50m
American Airlines
Deal found 2/1![American Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 1/31. 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 3/246:00 am
GEG
- SJU
1 stop13h 31m
American Airlines
Tue 3/316:33 am
SJU
- GEG
1 stop13h 21m
American Airlines
Deal found 1/31![American Airlines logo]()
$484
One-way flights from Idaho to Caribbean IslandsSearch for one-way flight options from Idaho to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Idaho to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:00 am
GEG
- SJU
1 stop10h 00m
United Airlines
Deal found 2/1![United Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/284:19 pm
BOI
- PUJ
2 stops18h 11m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:19 pm
BOI
- PUJ
2 stops22h 53m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 2/2. 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 4/211:30 pm
BOI
- NAS
1 stop15h 15m
Delta
Deal found 2/2![Delta logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:13 pm
BOI
- NAS
3 stops45h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 2/2. 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 2/171:35 pm
BOI
- SJU
2 stops17h 25m
American Airlines
Deal found 2/2![American Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 4/21:39 pm
BOI
- NAS
1 stop22h 53m
American Airlines
Deal found 2/2![American Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 5/282:58 pm
BOI
- PUJ
1 stop21h 07m
American Airlines
Deal found 2/2![American Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:28 pm
GEG
- SJU
3 stops27h 03m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 6/62:04 pm
GEG
- BGI
2 stops21h 24m
American Airlines
Deal found 2/3![American Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/178:12 pm
BOI
- SJU
3 stops47h 57m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 3/56:33 pm
BOI
- NAS
2 stops14h 42m
American Airlines
Deal found 2/2![American Airlines logo]()
$547
Find flight deals from Idaho to Caribbean Islands
Keep the following information in mind while searching for Idaho to Caribbean Islands flight deals. Data was last updated February 3, 2026.
Round-trip from | $416 (United Airlines) |
|---|---|
One-way from | $212 (United Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $560 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Caribbean Islands 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 February 3, 2026.
Use the filters below to find and compare flights from Idaho to Caribbean Islands that are best for you.
Fly from
Idaho
Fly to
Caribbean Islands
Route
Depart
Return
Price
BoiseSan Juan
BOI - SJU
BOISJU
Boise Air Term. Gowen Fld
Tue 5/5
6:00 am-9:05 pm
2 stops13h 05m
San Juan Luis Munoz Marin Intl
Tue 5/12
5:05 am-7:00 pm
2 stops15h 55m
$416
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Sat 4/25
6:00 am-11:12 pm
2 stops14h 12m
San Juan Luis Munoz Marin Intl
Thu 4/30
7:30 am-9:05 pm
2 stops16h 35m
$424
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Tue 2/24
5:00 am-12:36 am
2 stops15h 36m
San Juan Luis Munoz Marin Intl
Tue 3/3
2:25 pm-9:17 pm
1 stop10h 52m
$424
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Tue 4/21
6:34 am-11:02 pm
2 stops13h 28m
San Juan Luis Munoz Marin Intl
Tue 4/28
5:45 am-4:55 pm
2 stops14h 10m
$424
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Tue 4/14
6:00 am-11:02 pm
1 stop14h 02m
San Juan Luis Munoz Marin Intl
Fri 4/24
6:45 am-8:33 pm
1 stop16h 48m
$424
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Wed 3/11
6:00 am-12:15 am
2 stops15h 15m
San Juan Luis Munoz Marin Intl
Tue 3/17
10:10 am-9:35 pm
2 stops14h 25m
$462
BoiseNassau
BOI - NAS
BOINAS
Boise Air Term. Gowen Fld
Mon 3/2
6:35 pm-11:50 am
2 stops15h 15m
Nassau Intl
Mon 3/9
1:18 pm-10:25 pm
1 stop11h 07m
$484
BoiseSan Juan
BOI - SJU
BOISJU
Boise Air Term. Gowen Fld
Tue 5/5
8:34 am-8:34 pm
1 stop10h 00m
San Juan Luis Munoz Marin Intl
Tue 5/12
1:40 pm-9:17 pm
1 stop9h 37m
$499
BoiseSan Juan
BOI - SJU
BOISJU
Boise Air Term. Gowen Fld
Mon 3/23
6:33 pm-9:00 am
2 stops12h 27m
San Juan Luis Munoz Marin Intl
Tue 3/31
6:33 am-10:23 pm
1 stop17h 50m
$499
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Tue 4/28
1:19 pm-10:48 am
2 stops18h 29m
San Juan Luis Munoz Marin Intl
Tue 5/5
5:45 am-4:55 pm
2 stops14h 10m
$505
Showing 1-10 of 47 results
Best time to book a flight from Idaho to Caribbean Islands
Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Idaho with our price prediction graph.
GEG-SJU
BOI-NAS
BOI-SJU
BOI-PUJ
GEG-BGI
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 Caribbean Islands
USID-zzEPX
GEG-SJU
BOI-NAS
BOI-SJU
BOI-PUJ
What is the cheapest month to book a flight from Idaho to Caribbean Islands?
Currently, June is the cheapest month in which you can book a flight from Idaho to Caribbean Islands (average of $220). Flying from Idaho to Caribbean Islands in August is currently the most expensive (average of $490). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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
Complete your trip
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Top destinations
Alternative routes for Idaho to Caribbean Islands
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Caribbean Islands by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Caribbean Islands by cabin class
Find flights from Idaho to Caribbean Islands, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Caribbean Islands flights
Browse other Idaho and Caribbean Islands flight options. Last updated on February 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Caribbean Islands
Find the right flight back to Idaho after your stay in Caribbean Islands
Idaho to Caribbean Islands flights
Consider these flights traveling from Idaho to Caribbean Islands.
Top 4 airlines flying from Idaho to Caribbean Islands
Discover the top 4 airlines that operate flights from Idaho to Caribbean Islands. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$188 | Average$695 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$442 | Average$711 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$480 | Average$721 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$493 | Average$727 | FlexibilityNo cancel fee | On-time71% |