$174+ Cheap flights from Boston (BOS) to Luis Munoz Marin Intl (SJU)
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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJU
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Luis Munoz Marin Intl 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.Cheapflights Tip: The best prices from Boston Logan Intl to San Juan Luis Munoz Marin Intl are usually found in January or March, booked 60 days in advance, depart on a Sunday or Tuesday and return on a Wednesday
Cheap flight deals from Boston to Luis Munoz Marin Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to Luis Munoz Marin IntlExplore the most affordable flight options available from Boston to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
Explore the most affordable flight options available from Boston to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
This Delta deal was found by Cheapflights users on 10/21. 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 11/96:05 am -
1 stop9h 51m
Fri 11/132:10 pm -
1 stop9h 45m
Deal found 10/21![Delta logo]()
$290
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop6h 51m
Wed 11/181:53 pm -
1 stop7h 24m
Deal found 10/21![American Airlines logo]()
$291
This Super.com deal was found by Cheapflights users on 10/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:45 pm -
1 stop7h 45m
Mon 12/71:55 pm -
1 stop6h 55m
Deal found 10/23![JetBlue logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/1011:34 am -
1 stop12h 33m
Wed 12/236:11 am -
Nonstop4h 19m
Deal found 10/22![Frontier logo]()
$293
This Frontier deal was found by Cheapflights users on 10/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:06 am -
1 stop14h 18m
Wed 12/236:11 am -
Nonstop4h 19m
Deal found 10/22![Frontier logo]()
$294
This JetBlue deal was found by Cheapflights users on 10/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:00 pm -
1 stop6h 48m
Fri 11/137:00 am -
Nonstop4h 13m
Deal found 10/21![JetBlue logo]()
$295
This JetBlue deal was found by Cheapflights users on 10/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:09 pm -
1 stop7h 21m
Tue 11/177:00 am -
Nonstop4h 13m
Deal found 10/22![JetBlue logo]()
$296
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:39 pm -
1 stop11h 20m
Wed 12/27:00 am -
Nonstop4h 14m
Deal found 10/21![Multiple Airlines logo]()
$299
This JetBlue deal was found by Cheapflights users on 10/23. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:00 pm -
1 stop6h 48m
Wed 11/117:00 am -
1 stop9h 00m
Deal found 10/23![JetBlue logo]()
$300
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:09 am -
2 stops8h 56m
Fri 11/137:30 am -
1 stop7h 40m
Deal found 10/21![American Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:57 am -
1 stop12h 10m
Wed 12/96:25 am -
1 stop28h 14m
Deal found 10/21![Multiple Airlines logo]()
$303
Best flights from Boston to Luis Munoz Marin IntlDiscover carefully curated flight deals from Boston to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
Discover carefully curated flight deals from Boston to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:00 pm -
2 stops9h 22m
Tue 12/81:00 pm -
1 stop6h 45m
Deal found 10/21![United Airlines logo]()
$290
This JetBlue deal was found by Cheapflights users on 10/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:09 pm -
1 stop7h 21m
Tue 11/177:00 am -
Nonstop4h 13m
Deal found 10/22![JetBlue logo]()
$296
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:25 am -
2 stops9h 10m
Thu 11/124:00 pm -
2 stops8h 55m
Deal found 10/20![Southwest logo]()
$411
This Delta deal was found by Cheapflights users on 10/23. 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.
Fri 11/66:00 am -
1 stop9h 56m
Mon 11/94:20 pm -
1 stop9h 48m
Deal found 10/23![Delta logo]()
$456
This JetBlue deal was found by Cheapflights users on 10/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:00 am -
Nonstop4h 08m
Sat 12/57:00 am -
Nonstop4h 14m
Deal found 10/21![JetBlue logo]()
$327
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/85:45 am -
1 stop6h 30m
Tue 12/158:05 am -
2 stops11h 40m
Deal found 10/22![United Airlines logo]()
$333
This JetBlue deal was found by Cheapflights users on 10/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:21 pm -
Nonstop4h 06m
Mon 12/147:00 am -
Nonstop4h 16m
Deal found 10/22![JetBlue logo]()
$387
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/196:00 am -
1 stop6h 32m
Wed 11/252:05 am -
1 stop8h 12m
Deal found 10/22![United Airlines logo]()
$409
This JetBlue deal was found by Cheapflights users on 10/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:30 pm -
1 stop6h 22m
Sun 12/67:00 am -
Nonstop4h 16m
Deal found 10/21![JetBlue logo]()
$393
This United Airlines deal was found by Cheapflights users on 10/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/163:35 pm -
1 stop8h 01m
Tue 1/192:05 am -
1 stop6h 39m
Deal found 10/19![United Airlines logo]()
$438
This JetBlue deal was found by Cheapflights users on 10/23. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:25 am -
Nonstop4h 09m
Wed 1/132:35 pm -
1 stop9h 46m
Deal found 10/23![JetBlue logo]()
$413
This JetBlue deal was found by Cheapflights users on 10/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:09 pm -
1 stop7h 21m
Mon 11/168:39 pm -
Nonstop4h 20m
Deal found 10/22![JetBlue logo]()
$435
Last-minute flights from Boston to Luis Munoz Marin IntlDiscover last-minute flight deals from Boston to Luis Munoz Marin Intl. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Luis Munoz Marin Intl. Data last updated October 24, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
1 stop14h 29m
Fri 11/137:05 am -
1 stop7h 44m
Deal found 10/21![American Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 10/21. 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 11/96:05 am -
1 stop9h 51m
Fri 11/132:10 pm -
1 stop9h 45m
Deal found 10/21![Delta logo]()
$290
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop6h 51m
Wed 11/181:53 pm -
1 stop7h 24m
Deal found 10/21![American Airlines logo]()
$291
This JetBlue deal was found by Cheapflights users on 10/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:00 pm -
1 stop6h 48m
Fri 11/137:00 am -
Nonstop4h 13m
Deal found 10/21![JetBlue logo]()
$295
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:09 am -
2 stops8h 56m
Fri 11/137:30 am -
1 stop7h 40m
Deal found 10/21![American Airlines logo]()
$302
This JetBlue deal was found by Cheapflights users on 10/23. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:00 pm -
1 stop6h 48m
Wed 11/117:00 am -
1 stop9h 00m
Deal found 10/23![JetBlue logo]()
$300
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/106:00 am -
1 stop6h 32m
Tue 11/105:50 pm -
1 stop7h 09m
Deal found 10/22![United Airlines logo]()
$305
This JetBlue deal was found by Cheapflights users on 10/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:09 pm -
1 stop7h 21m
Tue 11/177:00 am -
Nonstop4h 13m
Deal found 10/22![JetBlue logo]()
$296
This Priceline deal was found by Cheapflights users on 10/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:39 pm -
1 stop11h 20m
Sat 11/218:45 pm -
Nonstop4h 13m
Deal found 10/21![Multiple Airlines logo]()
$299
This Frontier deal was found by Cheapflights users on 10/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:06 am -
1 stop14h 18m
Wed 12/236:11 am -
Nonstop4h 19m
Deal found 10/22![Frontier logo]()
$294
This Justfly.com deal was found by Cheapflights users on 10/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:06 am -
1 stop14h 18m
Thu 12/37:00 am -
Nonstop4h 14m
Deal found 10/21![Multiple Airlines logo]()
$304
One-way flights from Boston to Luis Munoz Marin IntlSearch for one-way flight options from Boston to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
Search for one-way flight options from Boston to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Super.com deal was found by Cheapflights users on 10/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1411:34 am -
1 stop12h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$174
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1110:01 am -
1 stop11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:08 am -
1 stop14h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/110:25 am -
Nonstop4h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/311:08 am -
Nonstop4h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:27 am -
2 stops22h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$179
This American Airlines deal was found by Cheapflights users on 10/20. 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.
Fri 11/1311:08 am -
1 stop11h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![American Airlines logo]()
$180
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3010:24 am -
1 stop22h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Sat 12/511:34 am -
2 stops27h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/3110:25 am -
Nonstop4h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$183
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:35 pm -
Nonstop4h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![JetBlue logo]()
$187
Find flight deals from Boston to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $290 (Delta) |
One-way from | $174 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $348 |
Good round-trip deal | $400 or less |
Good one-way deal | $225 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Luis Munoz Marin Intl 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 7,457,451 searches. Data last updated October 24, 2026.
Use the filters below to find and compare flights from Boston to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Sun 11/15
7:31 am-10:22 pm
2 stops13h 51m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$180
Quickest round-trip
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Sun 11/22
7:35 pm-12:40 am
Nonstop4h 05m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$197
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Tue 12/1
3:42 pm-12:36 am
1 stop7h 54m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$205
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Sat 2/20
5:30 am-3:34 pm
1 stop9h 04m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$229
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Tue 12/29
7:15 am-12:23 pm
Nonstop4h 08m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$235
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Sun 4/18
5:30 am-12:55 pm
1 stop7h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$239
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Wed 1/13
1:10 pm-12:58 am
1 stop10h 48m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$239
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Wed 1/6
9:09 am-12:36 am
2 stops14h 27m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$240
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Sun 1/3
5:00 pm-1:25 am
1 stop7h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$261
BostonSan Juan
BOS Boston Logan Intl - SJU San Juan Luis Munoz Marin Intl
BOSSJU
Boston Logan Intl
Wed 12/16
10:35 am-9:55 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$261
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Boston to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Luis Munoz Marin Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Boston with our price prediction graph.
BOS-SJU
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 Boston to San Juan Luis Munoz Marin Intl Airport
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Delays
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How far ahead should I book a flight from Boston to San Juan Luis Munoz Marin Intl Airport?
The price you pay for your flight from Boston to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Boston to San Juan Luis Munoz Marin Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Boston to San Juan Luis Munoz Marin Intl Airport (average of $290). Flying from Boston to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of $463). 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.
What is the cheapest time of day to fly from BOS to SJU?
Find hourly flight availability from Boston to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 24, 2026.
A simple way to save on the total cost of your ticket is to fly from Boston to San Juan Luis Munoz Marin Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Boston to San Juan Luis Munoz Marin Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Boston to Luis Munoz Marin Intl. Price data was last updated on October 17, 2026.
Travelers seeking maximum savings on their Boston to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Sunday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Boston to San Juan delayed?
About 27% of weekly flights between Boston and San Juan have experienced delays in the past year, with the average delay time being 156 minutes.
What is the most punctual flight time for Boston to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to San Juan flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 19% of flights being delayed.
What’s the top layover airport for flights from Boston to San Juan Luis Munoz Marin Intl Airport?
Share of 1-stop round-trip flights from Boston to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Baltimore (BWI) – chosen by Cheapflights users on 83% of 1-stop itineraries from Boston to San Juan Luis Munoz Marin Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Boston to San Juan Luis Munoz Marin Intl Airport?
Average round-trip fare for 1-stop flights from Boston to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Newark (EWR) is the most affordable 1-stop option, with an average round-trip price of $301.
What’s the fastest layover option from Boston to San Juan Luis Munoz Marin Intl Airport?
Shortest average travel time for 1-stop one-way flights from Boston to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 6h 07m.
Which airport typically offers the quickest layover for flights from Boston to San Juan Luis Munoz Marin Intl Airport?
Average layover duration for 1-stop one-way flights from Boston to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 0h 48m.
The best insider tips for Boston to San Juan Luis Munoz Marin Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to San Juan Luis Munoz Marin Intl Airport trip
Our travel experts
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated October 24, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andJetBlue from Boston to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Related info for your journey
Find useful and relevant information for your journey from Boston to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsLuquillo
Rio Grande
Fajardo
Dorado
Humacao
Bayamón
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Top 6 airlines flying from Boston to Luis Munoz Marin Intl
Discover the top 6 airlines that operate flights from Boston to Luis Munoz Marin Intl. 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 7,457,451 searches. Data last updated October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$306 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$167 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$387 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$212 | Average$392 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$259 | Average$459 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$394 | Average$541 | FlexibilityNo cancel fee | On-time63% |