$165+ Cheap flights from San Juan to Boston (BOS)
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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
Aug 8 — Aug 151
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Thursday and return on a Monday
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 July 9, 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 July 9, 2026.
This JetBlue deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:07 pm
SJU
- BOS
Nonstop4h 06m
JetBlue
Sun 9/69:59 am
BOS
- SJU
Nonstop4h 01m
JetBlue
Deal found 7/6![JetBlue logo]()
$318
This United Airlines deal was found by Cheapflights users on 7/8. 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 9/301:00 am
SJU
- BOS
2 stops9h 32m
United Airlines
Mon 10/53:48 pm
BOS
- SJU
1 stop8h 02m
United Airlines
Deal found 7/8![United Airlines logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 7/8. 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.
Fri 9/48:35 pm
SJU
- BOS
Nonstop4h 05m
JetBlue
Mon 9/77:50 pm
BOS
- SJU
Nonstop4h 04m
JetBlue
Deal found 7/8![JetBlue logo]()
$320
This Cheapflightsfares deal was found by Cheapflights users on 7/4. 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.
Thu 9/311:00 am
SJU
- BOS
1 stop11h 24m
JetBlue
Tue 9/89:59 am
BOS
- SJU
Nonstop4h 01m
JetBlue
Deal found 7/4![JetBlue logo]()
$321
This Cheapflightsfares deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:35 pm
SJU
- BOS
Nonstop4h 05m
JetBlue
Thu 9/1010:15 am
BOS
- SJU
Nonstop4h 08m
JetBlue
Deal found 7/5![JetBlue logo]()
$322
This JetBlue deal was found by Cheapflights users on 7/8. 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 8/192:30 pm
SJU
- BOS
Nonstop4h 10m
JetBlue
Wed 8/261:14 pm
BOS
- SJU
Nonstop4h 02m
JetBlue
Deal found 7/8![JetBlue logo]()
$323
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:00 am
SJU
- BOS
1 stop7h 17m
United Airlines
Fri 9/186:00 am
BOS
- SJU
1 stop7h 45m
United Airlines
Deal found 7/5![United Airlines logo]()
$324
This SmartFares deal was found by Cheapflights users on 7/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:01 am
SJU
- BOS
1 stop6h 24m
JetBlue
Sun 9/66:00 am
BOS
- SJU
Nonstop4h 00m
JetBlue
Deal found 7/8![JetBlue logo]()
$325
This Delta deal was found by Cheapflights users on 7/8. 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 8/211:19 pm
SJU
- BOS
1 stop9h 24m
Delta
Wed 8/268:50 am
BOS
- SJU
Nonstop4h 07m
Delta
Deal found 7/8![Delta logo]()
$328
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 July 9, 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 July 9, 2026.
This Delta deal was found by Cheapflights users on 7/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:19 pm
SJU
- BOS
1 stop9h 24m
Delta
Mon 8/315:30 am
BOS
- SJU
1 stop8h 12m
Delta
Deal found 7/4![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 7/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:55 pm
SJU
- BOS
1 stop7h 04m
United Airlines
Mon 8/316:01 am
BOS
- SJU
2 stops14h 37m
United Airlines
Deal found 7/4![United Airlines logo]()
$332
This JetBlue deal was found by Cheapflights users on 7/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:01 am
SJU
- BOS
1 stop6h 24m
JetBlue
Wed 9/27:50 pm
BOS
- SJU
Nonstop4h 04m
JetBlue
Deal found 7/4![JetBlue logo]()
$350
This Delta deal was found by Cheapflights users on 7/9. 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 8/292:31 pm
SJU
- BOS
1 stop9h 28m
Delta
Sun 9/66:05 am
BOS
- SJU
1 stop10h 28m
Delta
Deal found 7/9![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 7/8. 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 9/244:55 pm
SJU
- BOS
1 stop7h 04m
United Airlines
Sat 10/38:00 am
BOS
- SJU
2 stops15h 50m
United Airlines
Deal found 7/8![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:19 pm
SJU
- BOS
1 stop9h 24m
Delta
Tue 9/15:30 am
BOS
- SJU
1 stop11h 08m
Delta
Deal found 7/6![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 7/8. 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 9/244:55 pm
SJU
- BOS
1 stop7h 04m
United Airlines
Sun 9/277:38 am
BOS
- SJU
1 stop6h 07m
United Airlines
Deal found 7/8![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 7/8. 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 8/137:30 am
SJU
- BOS
1 stop8h 43m
Delta
Tue 8/188:55 am
BOS
- SJU
1 stop7h 43m
Delta
Deal found 7/8![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:00 am
SJU
- BOS
2 stops9h 18m
United Airlines
Tue 9/1510:38 am
BOS
- SJU
2 stops13h 12m
United Airlines
Deal found 7/5![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:10 pm
SJU
- BOS
Nonstop4h 13m
Delta
Fri 10/98:55 am
BOS
- SJU
Nonstop4h 06m
Delta
Deal found 7/5![Delta logo]()
$366
Last-minute flights from San Juan to BostonDiscover last-minute flight deals from San Juan to Boston. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Boston. Data last updated July 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/7. 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 7/1410:35 am
SJU
- BOS
2 stops8h 53m
American Airlines
Wed 7/156:00 am
BOS
- SJU
1 stop12h 24m
American Airlines
Deal found 7/7![American Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 7/7. 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 7/166:00 am
SJU
- BOS
1 stop8h 22m
American Airlines
Tue 7/216:01 am
BOS
- SJU
1 stop7h 32m
American Airlines
Deal found 7/7![American Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:00 am
SJU
- BOS
1 stop14h 10m
American Airlines
Mon 7/205:10 am
BOS
- SJU
1 stop10h 37m
American Airlines
Deal found 7/5![American Airlines logo]()
$392
This Cheapflightsfares deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:07 pm
SJU
- BOS
Nonstop4h 06m
JetBlue
Mon 7/209:59 pm
BOS
- SJU
Nonstop4h 00m
JetBlue
Deal found 7/5![JetBlue logo]()
$395
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:25 am
SJU
- BOS
1 stop12h 45m
American Airlines
Mon 7/205:52 pm
BOS
- SJU
1 stop10h 47m
American Airlines
Deal found 7/6![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 7/8. 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 7/174:38 pm
SJU
- BOS
1 stop8h 21m
American Airlines
Mon 7/279:37 am
BOS
- SJU
1 stop13h 20m
American Airlines
Deal found 7/8![American Airlines logo]()
$380
This Faresmojo deal was found by Cheapflights users on 7/7. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:08 pm
SJU
- BOS
Nonstop4h 11m
JetBlue
Mon 7/278:51 am
BOS
- SJU
Nonstop4h 07m
JetBlue
Deal found 7/7![JetBlue logo]()
$393
This Faresmojo deal was found by Cheapflights users on 7/7. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:08 pm
SJU
- BOS
Nonstop4h 11m
JetBlue
Mon 7/205:05 pm
BOS
- SJU
1 stop6h 48m
JetBlue
Deal found 7/7![JetBlue logo]()
$398
This American Airlines deal was found by Cheapflights users on 7/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:00 am
SJU
- BOS
1 stop14h 16m
American Airlines
Wed 7/226:00 am
BOS
- SJU
1 stop15h 59m
American Airlines
Deal found 7/4![American Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 7/8. 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 7/197:14 pm
SJU
- BOS
1 stop14h 52m
American Airlines
Mon 7/279:37 am
BOS
- SJU
1 stop13h 20m
American Airlines
Deal found 7/8![American Airlines logo]()
$401
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 July 9, 2026.
Search for one-way flight options from San Juan to Boston. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This Super.com deal was found by Cheapflights users on 7/7. 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 8/45:15 pm
SJU
- BOS
1 stop14h 31m
Frontier
Deal found 7/7![Frontier logo]()
$165
This Southwest deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:30 am
SJU
- BOS
1 stop9h 00m
Southwest
Deal found 7/6![Southwest logo]()
$166
This Orbitz deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:55 pm
SJU
- BOS
2 stops14h 38m
JetBlue
Deal found 7/5![JetBlue logo]()
$170
This Super.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/273:10 am
SJU
- BOS
1 stop29h 59m
Frontier
Deal found 7/6![Frontier logo]()
$171
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:10 pm
SJU
- BOS
Nonstop4h 11m
Delta
Deal found 7/6![Delta logo]()
$172
This Mytrip deal was found by Cheapflights users on 7/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:10 am
SJU
- BOS
1 stop29h 59m
Frontier
Deal found 7/7![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:37 pm
SJU
- BOS
1 stop12h 32m
Frontier
Deal found 7/5![Frontier logo]()
$175
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:49 pm
SJU
- BOS
1 stop7h 36m
Delta
Deal found 7/5![Delta logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:12 am
SJU
- BOS
Nonstop4h 03m
JetBlue
Deal found 7/6![JetBlue logo]()
$177
This JetBlue deal was found by Cheapflights users on 7/8. 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 9/57:55 am
SJU
- BOS
1 stop7h 24m
JetBlue
Deal found 7/8![JetBlue logo]()
$178
This Super.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:37 pm
SJU
- BOS
1 stop12h 32m
Frontier
Deal found 7/6![Frontier logo]()
$179
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 July 9, 2026.
Round-trip from | $318 (JetBlue) |
|---|---|
One-way from | $165 (Super.com) |
Popular in | June |
Cheapest in | February |
Average price | $393 |
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 2,558,603 searches. Data last updated July 9, 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 - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Fri 8/21
1:19 pm-10:43 pm
1 stop9h 24m
Boston Logan Intl
Mon 8/31
5:30 am-1:42 pm
1 stop8h 12m
$332
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Fri 8/28
4:55 pm-11:59 pm
1 stop7h 04m
Boston Logan Intl
Mon 8/31
6:01 am-8:38 pm
2 stops14h 37m
$332
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Sat 8/29
2:31 pm-11:59 pm
1 stop9h 28m
Boston Logan Intl
Sun 9/6
6:05 am-4:33 pm
1 stop10h 28m
$332
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Fri 8/21
1:19 pm-10:43 pm
1 stop9h 24m
Boston Logan Intl
Tue 9/1
5:30 am-4:38 pm
1 stop11h 08m
$332
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Thu 8/13
7:30 am-4:13 pm
1 stop8h 43m
Boston Logan Intl
Tue 8/18
8:55 am-4:38 pm
1 stop7h 43m
$332
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 9/1
5:01 am-11:25 am
1 stop6h 24m
Boston Logan Intl
Wed 9/2
7:50 pm-11:54 pm
Nonstop4h 04m
$350
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Thu 9/24
4:55 pm-11:59 pm
1 stop7h 04m
Boston Logan Intl
Sat 10/3
8:00 am-11:50 pm
2 stops15h 50m
$356
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Thu 9/24
4:55 pm-11:59 pm
1 stop7h 04m
Boston Logan Intl
Sun 9/27
7:38 am-1:45 pm
1 stop6h 07m
$356
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Fri 9/11
1:00 am-10:18 am
2 stops9h 18m
Boston Logan Intl
Tue 9/15
10:38 am-11:50 pm
2 stops13h 12m
$356
Quickest round-trip
San JuanBoston
SJU - BOS
SJUBOS
San Juan Luis Munoz Marin Intl
Fri 10/2
2:10 pm-6:23 pm
Nonstop4h 13m
Boston Logan Intl
Fri 10/9
8:55 am-1:01 pm
Nonstop4h 06m
$366
Showing 1-10 of 19 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, April is the cheapest month in which you can book a flight from San Juan to Boston (average of $55). Flying from San Juan to Boston in December is currently the most expensive (average of $562). 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 July 9, 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 evening, which can drop the price by up to 22% 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 July 9, 2026.
The most flights from PR1 to BOS are scheduled on a Thursday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from San Juan to Boston?
How often are flights from San Juan to Boston delayed?
About 19% of weekly flights between San Juan and Boston have experienced delays in the past year, with the average delay time being 156 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 Thursday 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 July 4, 2026.
Travelers seeking maximum savings on their San Juan to Boston flight should consider departing on Tuesday 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 July 9, 2026.
See what other customers who have flown with Delta,United Airlines, andJetBlue 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.
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
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
Cambridge
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Randolph
Auburn
Fitchburg
York Beach
Chelsea
Londonderry
Swansea
North Falmouth
Smithfield
Braintree
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Top 4 airlines flying from San Juan to Boston
Discover the top 4 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 2,558,603 searches. Data last updated July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$223 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$126 | Average$310 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$334 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$452 | FlexibilityNo cancel fee | On-time69% |