$154+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
Oct 7 — Oct 141
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
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 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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 9/262:22 pm -
1 stop7h 27m
Sun 9/276:00 am -
1 stop7h 57m
Deal found 9/6![American Airlines logo]()
$280
This CheapOair deal was found by Cheapflights users on 9/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:00 am -
1 stop8h 02m
Tue 10/278:08 pm -
Nonstop4h 05m
Deal found 9/6![Multiple Airlines logo]()
$282
This Orbitz deal was found by Cheapflights users on 9/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:20 am -
1 stop27h 42m
Tue 10/207:42 pm -
Nonstop4h 07m
Deal found 9/3![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 11/67:00 am -
1 stop27h 29m
Mon 11/912:39 pm -
1 stop11h 20m
Deal found 9/5![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:59 pm -
2 stops42h 30m
Thu 11/1212:34 pm -
1 stop23h 51m
Deal found 9/6![Multiple Airlines logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:42 pm -
1 stop16h 20m
Sat 10/1710:19 am -
1 stop11h 36m
Deal found 9/4![Multiple Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:56 pm -
1 stop9h 14m
Sat 9/267:38 am -
1 stop6h 07m
Deal found 9/2![United Airlines logo]()
$316
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
Sat 10/246:20 am -
Nonstop4h 04m
Sun 11/18:08 pm -
Nonstop4h 05m
Deal found 9/2![JetBlue logo]()
$318
This CheapOair deal was found by Cheapflights users on 9/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:44 pm -
1 stop15h 18m
Fri 10/308:08 pm -
Nonstop4h 05m
Deal found 9/6![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am -
1 stop26h 29m
Sat 10/2410:19 am -
1 stop11h 36m
Deal found 9/4![Multiple Airlines logo]()
$320
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 September 7, 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 September 7, 2026.
This JetBlue deal was found by Cheapflights users on 9/6. 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.
Wed 10/216:55 pm -
Nonstop4h 08m
Sat 10/247:42 pm -
Nonstop4h 07m
Deal found 9/6![JetBlue logo]()
$327
This Delta deal was found by Cheapflights users on 9/3. 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 9/242:10 pm -
Nonstop4h 13m
Sun 9/278:55 am -
Nonstop4h 02m
Deal found 9/3![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/71:00 am -
1 stop8h 44m
Tue 10/135:45 am -
1 stop6h 49m
Deal found 9/5![United Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 9/3. 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 11/53:02 pm -
Nonstop4h 13m
Sun 11/86:00 am -
1 stop9h 56m
Deal found 9/3![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/151:00 am -
1 stop8h 44m
Sun 10/256:00 am -
1 stop7h 40m
Deal found 9/4![United Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:45 am -
1 stop8h 04m
Sat 10/178:50 am -
Nonstop4h 02m
Deal found 9/2![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Thu 10/81:00 am -
1 stop8h 44m
Sun 10/116:00 am -
1 stop7h 45m
Deal found 9/5![United Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 9/6. 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 10/21:16 pm -
1 stop9h 54m
Sun 10/48:55 am -
Nonstop4h 02m
Deal found 9/6![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:00 am -
2 stops15h 21m
Sun 10/47:38 am -
1 stop6h 07m
Deal found 9/3![United Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:55 pm -
1 stop7h 18m
Sat 11/148:35 am -
Nonstop4h 03m
Deal found 9/3![Delta logo]()
$342
This Delta deal was found by Cheapflights users on 9/2. 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 2/56:15 am -
1 stop11h 03m
Mon 2/88:05 am -
Nonstop4h 05m
Deal found 9/2![Delta logo]()
$354
Last-minute flights from San Juan to BostonDiscover last-minute flight deals from San Juan to Boston. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Boston. Data last updated September 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:00 am -
2 stops11h 50m
Sat 9/266:00 am -
1 stop7h 45m
Deal found 9/2![United Airlines logo]()
$316
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 9/262:22 pm -
1 stop7h 27m
Sun 9/276:00 am -
1 stop7h 57m
Deal found 9/6![American Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:42 pm -
1 stop16h 20m
Sat 10/1710:19 am -
1 stop11h 36m
Deal found 9/4![Multiple Airlines logo]()
$314
This Orbitz deal was found by Cheapflights users on 9/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:20 am -
1 stop27h 42m
Tue 10/207:42 pm -
Nonstop4h 07m
Deal found 9/3![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am -
1 stop26h 29m
Sat 10/2410:19 am -
1 stop11h 36m
Deal found 9/4![Multiple Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 9/6. 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 10/162:02 pm -
Nonstop4h 13m
Mon 10/198:50 am -
Nonstop4h 02m
Deal found 9/6![Delta logo]()
$327
This CheapOair deal was found by Cheapflights users on 9/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:00 am -
1 stop8h 02m
Tue 10/278:08 pm -
Nonstop4h 05m
Deal found 9/6![Multiple Airlines logo]()
$282
This CheapOair deal was found by Cheapflights users on 9/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:44 pm -
1 stop15h 18m
Fri 10/308:08 pm -
Nonstop4h 05m
Deal found 9/6![Multiple Airlines logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
Sat 10/246:20 am -
Nonstop4h 04m
Sun 11/18:08 pm -
Nonstop4h 05m
Deal found 9/2![JetBlue logo]()
$318
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 September 7, 2026.
Search for one-way flight options from San Juan to Boston. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/310:30 am -
1 stop25h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Sat 10/313:47 pm -
1 stop20h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:52 pm -
2 stops19h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$157
This Mytrip deal was found by Cheapflights users on 9/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:57 am -
1 stop7h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sun 10/43:08 am -
2 stops32h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$159
This FlightHub deal was found by Cheapflights users on 9/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:42 pm -
1 stop16h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:04 am -
2 stops32h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$161
This Booking.com deal was found by Cheapflights users on 9/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:42 am -
1 stop24h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$164
This Priceline deal was found by Cheapflights users on 9/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/238:20 am -
Nonstop4h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:15 am -
1 stop27h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$166
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 September 7, 2026.
Round-trip from | $280 (American Airlines) |
|---|---|
One-way from | $154 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $308 |
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 September 7, 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
Fri 11/6
5:50 pm-11:50 pm
1 stop7h 00m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$168
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Mon 12/7
6:01 am-9:14 am
Nonstop4h 13m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Wed 12/2
6:01 am-9:14 am
Nonstop4h 13m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 9/29
1:16 pm-11:10 pm
1 stop9h 54m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Thu 11/26
2:05 am-9:17 am
1 stop8h 12m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Fri 12/25
8:05 am-6:27 pm
2 stops11h 22m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Sat 2/6
2:05 am-7:38 am
1 stop6h 33m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$194
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Wed 9/23
11:50 am-10:15 pm
2 stops10h 25m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$201
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Tue 10/27
5:05 am-2:55 pm
2 stops9h 50m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$201
San JuanBoston
SJU San Juan Luis Munoz Marin Intl - BOS Boston Logan Intl
SJUBOS
San Juan Luis Munoz Marin Intl
Sat 9/19
1:00 am-9:48 am
1 stop8h 48m
Boston Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$211
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 $224). Flying from San Juan to Boston in July is currently the most expensive (average of $439). 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 September 7, 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.
How much does it cost to fly round-trip from San Juan to Boston?
Airfare is typical for this route at the moment.
San Juan to Boston flights typically cost between $260 and $357 in September.The cheapest round-trip price found within the last 5 days was $280 on American Airlines (Sep 26-Sep 27).
How often are flights from San Juan to Boston delayed?
About 20% of weekly flights between San Juan and Boston have experienced delays in the past year, with the average delay time being 159 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 83 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 September 5, 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 evenings 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 September 7, 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.
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
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
Seekonk
Dedham
Cranston
Warwick
Pawtucket
Peabody
Auburn
Revere
York Beach
Londonderry
Fitchburg
North Falmouth
Swansea
Chelsea
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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$224 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$104 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$174 | Average$354 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$452 | FlexibilityNo cancel fee | On-time69% |