$160+ Cheap flights from San Juan to Boston (BOS)
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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
Dec 4 — Dec 111
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Juan to Boston 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 San Juan to Boston Logan Intl are usually found in February or April, booked 84 days in advance, depart on a Friday or Wednesday and return on a Tuesday
Cheap flight deals from San Juan to Boston
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Juan to BostonExplore the most affordable flight options available from San Juan to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from San Juan to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This Travelocity deal was found by Cheapflights users on 11/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:35 pm -
2 stops20h 50m
Tue 1/511:08 am -
Nonstop4h 05m
Deal found 11/1![Multiple Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 12/42:53 pm -
Nonstop4h 22m
Sun 12/68:35 am -
Nonstop4h 07m
Deal found 10/31![Delta logo]()
$301
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2010:51 pm -
1 stop11h 42m
Sun 1/310:25 am -
Nonstop4h 05m
Deal found 10/31![Frontier logo]()
$302
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:11 am -
Nonstop4h 19m
Sat 1/911:08 am -
Nonstop4h 05m
Deal found 11/2![Frontier logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:51 pm -
1 stop11h 39m
Thu 12/3110:25 am -
Nonstop4h 05m
Deal found 10/31![Frontier logo]()
$305
This JetBlue deal was found by Cheapflights users on 10/30. 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.
Thu 11/1210:00 am -
1 stop7h 20m
Mon 11/168:08 pm -
Nonstop4h 05m
Deal found 10/30![JetBlue logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:11 am -
Nonstop4h 19m
Fri 12/1810:25 am -
1 stop12h 52m
Deal found 11/3![Frontier logo]()
$307
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:11 am -
Nonstop4h 19m
Sat 1/911:08 am -
Nonstop4h 05m
Deal found 11/2![Frontier logo]()
$308
This CheapOair deal was found by Cheapflights users on 10/30. 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 12/236:11 am -
Nonstop4h 19m
Mon 1/42:42 pm -
1 stop9h 35m
Deal found 10/30![Multiple Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/132:52 pm -
2 stops10h 07m
Mon 11/166:00 am -
1 stop6h 32m
Deal found 10/30![United Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/176:11 am -
Nonstop4h 19m
Thu 12/2410:25 am -
1 stop14h 58m
Deal found 11/2![Frontier logo]()
$311
Best flights from San Juan to BostonDiscover carefully curated flight deals from San Juan to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from San Juan to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This JetBlue deal was found by Cheapflights users on 11/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:01 am -
Nonstop4h 12m
Mon 11/306:00 am -
1 stop7h 34m
Deal found 11/3![JetBlue logo]()
$379
This Delta deal was found by Cheapflights users on 11/3. 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.
Thu 12/32:53 pm -
Nonstop4h 22m
Sun 12/68:35 am -
Nonstop4h 07m
Deal found 11/3![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/302:05 am -
1 stop6h 33m
Sun 12/65:45 am -
1 stop6h 30m
Deal found 10/30![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/105:40 am -
2 stops9h 50m
Sun 12/137:25 am -
2 stops9h 25m
Deal found 11/2![Southwest logo]()
$444
This JetBlue deal was found by Cheapflights users on 10/30. 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.
Thu 12/33:00 pm -
1 stop9h 48m
Mon 12/77:00 am -
Nonstop4h 08m
Deal found 10/30![JetBlue logo]()
$381
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 12/257:50 am -
1 stop7h 13m
Tue 1/121:10 pm -
1 stop10h 48m
Deal found 11/2![Delta logo]()
$396
This JetBlue deal was found by Cheapflights users on 11/1. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:01 am -
Nonstop4h 12m
Fri 11/277:35 pm -
Nonstop4h 05m
Deal found 11/1![JetBlue logo]()
$387
This Delta deal was found by Cheapflights users on 10/30. 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 12/247:00 am -
1 stop11h 23m
Fri 1/16:00 am -
1 stop9h 44m
Deal found 10/30![Delta logo]()
$396
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:40 am -
1 stop6h 40m
Tue 12/810:35 am -
2 stops10h 50m
Deal found 11/3![Southwest logo]()
$449
This Delta deal was found by Cheapflights users on 11/1. 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.
Tue 12/157:00 am -
1 stop8h 38m
Thu 12/315:00 pm -
1 stop8h 43m
Deal found 11/1![Delta logo]()
$396
This JetBlue deal was found by Cheapflights users on 10/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:45 pm -
Nonstop4h 13m
Mon 11/307:00 am -
Nonstop4h 08m
Deal found 10/31![JetBlue logo]()
$402
Last-minute flights from San Juan to BostonDiscover last-minute flight deals from San Juan to Boston. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Boston. Data last updated November 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/132:52 pm -
2 stops10h 07m
Mon 11/166:00 am -
1 stop6h 32m
Deal found 10/30![United Airlines logo]()
$310
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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.
Sun 11/223:55 am -
1 stop7h 16m
Thu 11/269:25 am -
1 stop13h 06m
Deal found 11/4![Frontier logo]()
$312
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 12/42:53 pm -
Nonstop4h 22m
Sun 12/68:35 am -
Nonstop4h 07m
Deal found 10/31![Delta logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:11 am -
Nonstop4h 19m
Fri 12/1810:25 am -
1 stop12h 52m
Deal found 11/3![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/176:11 am -
Nonstop4h 19m
Thu 12/2410:25 am -
1 stop14h 58m
Deal found 11/2![Frontier logo]()
$311
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2010:51 pm -
1 stop11h 42m
Sun 1/310:25 am -
Nonstop4h 05m
Deal found 10/31![Frontier logo]()
$302
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:11 am -
Nonstop4h 19m
Sat 1/911:08 am -
Nonstop4h 05m
Deal found 11/2![Frontier logo]()
$304
This CheapOair deal was found by Cheapflights users on 10/30. 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 12/236:11 am -
Nonstop4h 19m
Mon 1/42:42 pm -
1 stop9h 35m
Deal found 10/30![Multiple Airlines logo]()
$309
This Travelocity deal was found by Cheapflights users on 11/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:35 pm -
2 stops20h 50m
Tue 1/511:08 am -
Nonstop4h 05m
Deal found 11/1![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:51 pm -
1 stop11h 39m
Thu 12/3110:25 am -
Nonstop4h 05m
Deal found 10/31![Frontier logo]()
$305
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:11 am -
Nonstop4h 19m
Sat 1/911:08 am -
Nonstop4h 05m
Deal found 11/2![Frontier logo]()
$308
One-way flights from San Juan to BostonSearch for one-way flight options from San Juan to Boston. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from San Juan to Boston. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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.
Sun 11/2210:21 pm -
1 stop12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$160
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:51 pm -
1 stop11h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/164:04 pm -
1 stop18h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$162
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:43 am -
1 stop7h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2211:00 am -
1 stop23h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/263:19 pm -
1 stop18h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$167
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/43:43 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$169
This JetBlue deal was found by Cheapflights users on 11/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/243:30 pm -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![JetBlue logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:45 am -
1 stop27h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 1/153:48 pm -
2 stops21h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$172
This JetBlue deal was found by Cheapflights users on 10/30. 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 12/1811:54 am -
1 stop7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![JetBlue logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Sun 12/63:43 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$174
Find flight deals from San Juan to Boston
Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Boston (BOS). 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 November 4, 2026.
Round-trip from | $300 (Travelocity) |
|---|---|
One-way from | $160 (Cheapflightsfares) |
Popular in | July |
Cheapest in | February |
Average price | $381 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Juan to Boston 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 November 4, 2026.
Use the filters below to find and compare flights from San Juan to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Thu 12/17
5:35 am-2:30 pm
2 stops9h 55m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$198
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Sat 12/12
8:45 am-7:25 pm
2 stops11h 40m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$203
Quickest round-trip
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 12/15
2:53 pm-6:15 pm
Nonstop4h 22m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$204
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Wed 12/2
8:05 am-6:45 pm
2 stops11h 40m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$208
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Sun 12/6
5:35 am-2:30 pm
2 stops9h 55m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$238
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 11/17
3:20 pm-11:54 pm
1 stop9h 34m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$248
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 12/1
6:40 am-2:30 pm
1 stop8h 50m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$251
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Sat 1/16
7:57 am-1:48 pm
1 stop6h 51m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$258
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 11/24
2:05 am-9:17 am
1 stop8h 12m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$258
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Thu 12/17
7:40 am-10:50 pm
2 stops16h 10m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$268
Showing 1-10 of 23 resultsSorted by cheapest first
Best time to book a flight from San Juan to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from San Juan with our price prediction graph.
PR1-BOS
SJU-BOS
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 San Juan to Boston
PR1-BOS
SJU-BOS
What is the cheapest month to book a flight from San Juan to Boston?
Currently, February is the cheapest month in which you can book a flight from San Juan to Boston (average of $228). Flying from San Juan to Boston in July is currently the most expensive (average of $438). 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 SJU to BOS?
Find hourly flight availability from San Juan to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2026.
When flying from San Juan to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 23% versus a flight at noon.
Weekly flight availability from San Juan to Boston
Explore weekly flight availability from San Juan to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 4, 2026.
The most flights from PR1 to BOS are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from San Juan to Boston?
Airfare is below average for this route at the moment.
San Juan to Boston flights typically cost between $327 and $487 in December.The cheapest round-trip price found within the last 5 days was $300 on Multiple Airlines (Dec 24-Jan 5).
How often are flights from San Juan to Boston delayed?
About 21% of weekly flights between San Juan and Boston have experienced delays in the past year, with the average delay time being 158 minutes.
What is the most punctual flight time for San Juan to Boston 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 San Juan to Boston flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 14% of flights being delayed.
How far ahead should I book a flight from San Juan to Boston?
The price you pay for your flight from San Juan to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from San Juan to Boston?
Use this chart to determine the cheapest time to fly round-trip from San Juan to Boston. Price data was last updated on October 31, 2026.
Travelers seeking maximum savings on their San Juan to Boston flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated November 4, 2026.
See what other customers who have flown with Delta,JetBlue, andFrontier from San Juan to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Related info for your journey
Find useful and relevant information for your journey from San Juan to Boston. 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 Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Warwick
Pawtucket
Peabody
Fitchburg
Londonderry
York Beach
Revere
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich
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
Boston flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for San Juan to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 4, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Juan to Boston by cabin class
Find flights from San Juan to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Juan and Boston flights
Browse other San Juan and Boston flight options. Last updated on November 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from San Juan to Boston
Discover the top 3 airlines that operate flights from San Juan to Boston. 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 November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$101 | Average$360 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$182 | Average$367 | FlexibilityNo cancel fee | On-time62% |