Cheap Flights from Boston, MA to San Juan from $80
Return flight: San Juan – Boston
On Cheapflightsplus.com you will find 1 direct and 150 connecting flights from Boston to San Juan. You can compare airfare deals from 4 airlines and multiple travel sites from $80, book and save on cheap plane tickets and last minute offers. Also check out BOS-SJU flight schedule to find best flight time, convenient departure and arrival airports.
Find One-Way and Round-Trip Boston to San Juan Flight Deals
To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights».
To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight.
Cheapest flights in November: $80 (one-way), $137 (round-trip).
Direct flights
Check prices for return flight
Best Flights from Boston to San Juan Today
Take a look at the list of non stop flights and flights with layovers from Boston to San Juan with the lowest price of $80. The fastest direct flight takes 4h 5m and the fastest connecting – 6h 35m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $169 | 10:18 Boston Logan | 14:23 San Juan Luis Munoz Marin Intl | 4h 5m | Spirit Airlines | NK1839 |
| from $80 | 16:40 Boston Logan | 01:11+1 день San Juan Luis Munoz Marin Intl | 8h 31m layover 2h 20m - Orlando | Spirit Airlines | NK3797 NK3166 |
| from $120 | 09:49 Boston Logan | 17:45 San Juan Luis Munoz Marin Intl | 7h 56m layover 1h 19m - Tampa | Frontier Airlines | F91215 F92216 |
| from $132 | 09:40 Boston Logan | 00:28+1 день San Juan Luis Munoz Marin Intl | 14h 48m layover 8h 30m - Orlando | Frontier Airlines | F93347 F91746 |
| from $136 | 20:50 Boston Logan | 12:20+1 день San Juan Luis Munoz Marin Intl | 15h 30m layover 9h 16m - Orlando | Spirit Airlines | NK1841 NK1989 |
| from $138 | 09:40 Boston Logan | 08:59+1 день San Juan Luis Munoz Marin Intl | 23h 19m layover 17h 2m - Orlando | Frontier Airlines | F93347 F92250 |
| from $167 | 06:10 Boston Logan | 15:41 San Juan Luis Munoz Marin Intl | 9h 31m layover 3h 32m - Miami | Spirit Airlines | NK296 NK1037 |
| from $167 | 20:39 Boston Logan | 10:06+1 день San Juan Luis Munoz Marin Intl | 13h 27m layover 7h 25m - Miami | Spirit Airlines | NK1231 NK1396 |
| from $224 | 05:30 Boston Logan | 12:34 San Juan Luis Munoz Marin Intl | 7h 4m layover 1h 36m - Washington D.C. | United Airlines | UA1734 UA2021 |
| from $224 | 10:00 Boston Logan | 20:38 San Juan Luis Munoz Marin Intl | 10h 38m layover 1h 49m - Houston | United Airlines | UA439 UA701 |
| from $216 | 06:10 Boston Logan | 01:11+1 день San Juan Luis Munoz Marin Intl | 19h 1m layover 4h 6m - Miami 7h 30m - Orlando | Spirit Airlines | NK296 NK196 NK3166 |
| from $216 | 06:10 Boston Logan | 09:56+1 день San Juan Luis Munoz Marin Intl | 27h 46m layover 12h 16m - Miami 8h 0m - Orlando | Spirit Airlines | NK296 NK676 NK3159 |
| from $220 | 06:00 Boston Logan | 01:11+1 день San Juan Luis Munoz Marin Intl | 19h 11m layover 10h 17m - Baltimore 2h 3m - Orlando | Spirit Airlines | NK2072 NK962 NK3166 |
| from $220 | 06:00 Boston Logan | 01:11+1 день San Juan Luis Munoz Marin Intl | 19h 11m layover 10h 9m - Baltimore 2h 11m - Orlando | Spirit Airlines | NK2072 NK1095 NK3166 |
| from $220 | 06:00 Boston Logan | 09:56+1 день San Juan Luis Munoz Marin Intl | 27h 56m layover 10h 9m - Baltimore 10h 54m - Orlando | Spirit Airlines | NK2072 NK1095 NK3159 |
| from $220 | 06:00 Boston Logan | 09:56+1 день San Juan Luis Munoz Marin Intl | 27h 56m layover 10h 17m - Baltimore 10h 46m - Orlando | Spirit Airlines | NK2072 NK962 NK3159 |
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 17, 2025
Flight Schedule Boston (Massachusetts) to San Juan
Full flight schedule will help you in detecting at what time planes fly from Boston to San Juan. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
| Departure | Arrival | Flight Details | Flight Duration | Price |
|---|---|---|---|---|
|
10:18 — 14:23
|
10:18 — 14:23
NK1839
Spirit Airlines
Boston — San Juan
|
4h 5m |
Find flight
from$169 |
|
|
05:30 — 12:34
|
05:30 — 07:04
UA1734
United Airlines
Boston — Washington D.C.
1h 36m stop
08:40 — 12:34
UA2021
United Airlines
Washington D.C. — San Juan
|
7h 4m including layover |
Find flight
from$224 |
|
|
06:10 — 15:41
|
06:10 — 09:32
NK296
Spirit Airlines
Boston — Miami
3h 32m stop
13:04 — 15:41
NK1037
Spirit Airlines
Miami — San Juan
|
9h 31m including layover |
Find flight
from$167 |
|
|
07:10 — 13:45
|
07:00 — 08:21
UA570
United Airlines
Boston — Newark
1h 9m stop
09:44 — 13:45
UA1556
United Airlines
Newark — San Juan
|
6h 35m including layover |
Find flight
from$336 |
|
|
08:00 — 23:57
+1 day
|
07:00 — 08:21
UA570
United Airlines
Boston — Newark
10h 29m stop
19:53 — 23:57
UA1543
United Airlines
Newark — San Juan
|
15h 57m including layover |
Find flight
from$285 |
|
|
09:40 — 00:28
+1 day
|
09:40 — 12:58
F93347
Frontier Airlines
Boston — Orlando
8h 30m stop
21:26 — 00:32
F91746
Frontier Airlines
Orlando — San Juan
|
14h 48m including layover |
Find flight
from$132 |
|
|
09:49 — 17:45
|
11:05 — 14:34
F91215
Frontier Airlines
Boston — Tampa
1h 19m stop
12:30 — 16:28
F92216
Frontier Airlines
Tampa — San Juan
|
7h 56m including layover |
Find flight
from$120 |
|
|
10:00 — 20:38
|
10:00 — 13:14
UA439
United Airlines
Boston — Houston
1h 49m stop
15:03 — 20:38
UA701
United Airlines
Houston — San Juan
|
10h 38m including layover |
Find flight
from$224 |
|
|
16:40 — 01:11
+1 day
|
16:40 — 19:57
NK3797
Spirit Airlines
Boston — Orlando
2h 20m stop
22:17 — 01:11
NK3166
Spirit Airlines
Orlando — San Juan
|
8h 31m including layover |
Find flight
from$80 |
|
|
16:40 — 09:56
+1 day
|
16:40 — 19:57
NK3797
Spirit Airlines
Boston — Orlando
11h 3m stop
07:00 — 09:56
NK3159
Spirit Airlines
Orlando — San Juan
|
17h 16m including layover |
Find flight
from$85 |
|
|
17:31 — 05:30
+1 day
|
17:25 — 20:44
UA2474
United Airlines
Boston — Houston
3h 7m stop
23:57 — 05:30
UA1497
United Airlines
Houston — San Juan
|
11h 59m including layover |
Find flight
from$270 |
|
|
17:31 — 20:38
+1 day
|
17:25 — 20:44
UA2474
United Airlines
Boston — Houston
18h 12m stop
15:02 — 20:38
UA701
United Airlines
Houston — San Juan
|
27h 7m including layover |
Find flight
from$323 |
|
|
18:30 — 00:12
+2 days
|
18:30 — 21:28
NK1209
Spirit Airlines
Boston — Atlanta
23h 2m stop
20:30 — 00:12
NK843
Spirit Airlines
Atlanta — San Juan
|
29h 42m including layover |
Find flight
from$224 |
|
|
19:12 — 21:24
+1 day
|
19:00 — 20:46
UA2136
United Airlines
Boston — Washington D.C.
20h 30m stop
17:28 — 21:24
UA2025
United Airlines
Washington D.C. — San Juan
|
26h 12m including layover |
Find flight
from$310 |
|
|
20:39 — 10:06
+1 day
|
20:39 — 00:15
NK1231
Spirit Airlines
Boston — Miami
7h 25m stop
07:40 — 10:06
NK1396
Spirit Airlines
Miami — San Juan
|
13h 27m including layover |
Find flight
from$167 |
|
|
20:50 — 12:20
+1 day
|
20:50 — 00:18
NK1841
Spirit Airlines
Boston — Orlando
9h 16m stop
09:34 — 12:20
NK1989
Spirit Airlines
Orlando — San Juan
|
15h 30m including layover |
Find flight
from$136 |
|
|
05:30 — 18:40
|
05:30 — 07:04
UA1734
United Airlines
Boston — Washington D.C.
1h 11m stop
08:15 — 12:17
UA1443
United Airlines
Washington D.C. — Charlotte Amalie
5h 48m stop
18:05 — 18:40
3M123
Gulfstream International Airlines
Charlotte Amalie — San Juan
|
13h 10m including layover |
Find flight
from$322 |
|
|
06:10 — 01:11
+1 day
|
06:10 — 09:32
NK296
Spirit Airlines
Boston — Miami
4h 6m stop
13:38 — 14:47
NK196
Spirit Airlines
Miami — Orlando
7h 30m stop
22:17 — 01:11
NK3166
Spirit Airlines
Orlando — San Juan
|
19h 1m including layover |
Find flight
from$216 |
|
|
07:44 — 21:24
|
07:44 — 09:39
UA1909
United Airlines
Boston — Chicago
1h 11m stop
10:50 — 13:49
UA2862
United Airlines
Chicago — Washington D.C.
3h 39m stop
17:28 — 21:24
UA2025
United Airlines
Washington D.C. — San Juan
|
13h 40m including layover |
Find flight
from$336 |
|
|
11:25 — 01:11
+1 day
|
11:25 — 12:56
NK935
Spirit Airlines
Boston — Baltimore
4h 54m stop
17:50 — 20:14
NK962
Spirit Airlines
Baltimore — Orlando
2h 3m stop
22:17 — 01:11
NK3166
Spirit Airlines
Orlando — San Juan
|
13h 46m including layover |
Find flight
from$229 |
|
|
11:25 — 01:11
+1 day
|
11:25 — 12:56
NK935
Spirit Airlines
Boston — Baltimore
4h 46m stop
17:42 — 20:06
NK1095
Spirit Airlines
Baltimore — Orlando
2h 11m stop
22:17 — 01:11
NK3166
Spirit Airlines
Orlando — San Juan
|
13h 46m including layover |
Find flight
from$229 |
|
|
13:55 — 12:47
+1 day
|
13:55 — 15:55
NK2328
Spirit Airlines
Boston — Detroit
2h 47m stop
18:42 — 20:32
NK1020
Spirit Airlines
Detroit — Dallas
10h 28m stop
07:00 — 12:47
NK3707
Spirit Airlines
Dallas — San Juan
|
22h 52m including layover |
Find flight
from$234 |
|
|
13:55 — 00:12
+2 days
|
13:55 — 15:55
NK2328
Spirit Airlines
Boston — Detroit
22h 55m stop
14:50 — 16:51
NK1159
Spirit Airlines
Detroit — Atlanta
3h 39m stop
20:30 — 00:12
NK843
Spirit Airlines
Atlanta — San Juan
|
34h 17m including layover |
Find flight
from$249 |
|
|
18:30 — 01:11
+2 days
|
18:30 — 21:28
NK1209
Spirit Airlines
Boston — Atlanta
22h 2m stop
19:30 — 21:00
NK3135
Spirit Airlines
Atlanta — Orlando
1h 17m stop
22:17 — 01:11
NK3166
Spirit Airlines
Orlando — San Juan
|
30h 41m including layover |
Find flight
from$227 |
|
*Departure and arrival times - local. Updated on July 17, 2025
Flight Information
Below we will explain in detail what the flights cost on the destination from Boston to San Juan depends on and how to choose the most interesting flight option for you.
Distance between Boston and San Juan is 2702 miles. Time difference between the cities is 1h. Airplanes depart 05:25 to 20:50 from 4 Boston airports and arrive 05:25 to 20:50 to 2 San Juan airports. Average flight time is 4h 5m.
- The fastest flight 4h 5m
- Average flight time 4h 5m
- The earliest flight 05:25
- The latest flight 20:50
- Distance 1679 ml
The cheapest months to travel to San Juan are july (from 60 $), september (from 80 $), october (from 85 $).
The most expensive months are june (from 227 $), august (from 132 $), may (from 126 $).
What is the lowest airfare Boston to San Juan?
The cheapest plane ticket found by our users is $80. This airfare is for economy class on one-way NK3797 flight by Spirit Airlines for September 27, 2025 which leaves Logan in Boston at 16:40 am and arrives at San Juan Luis Munoz Marin Intl at 01:11.
Economy class
$80
Business class
?
First class
?
Popular Airlines on the Route
The flight Boston — San Juan is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by United Airlines - 93 departures per week at the price of from $ 224 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 1809.
Direct flights
There are 1 nonstop flights on the route. The fastest direct flight is NK1839 by Spirit Airlines takes 4h 5m and the cheapest is NK3797 by Spirit Airlines for $169.
- NK - Spirit Airlinesfrom $169Find
See more direct flights
Connecting Flights
There are 150 flights with layovers on the route. The fastest connecting flight is UA570 by United Airlines takes 6h 35m and the cheapest is NK3797 by Spirit Airlines for $80.
- UA - United Airlinesfrom $224Find
- AS - Alaska Airlinesfrom $426Find
- F9 - Frontier Airlinesfrom $120Find
- NK - Spirit Airlinesfrom $80Find
See more connecting flights
Airports
You can fly from Boston to San Juan from 4 airports (Boston City Heliport, Boston RT128 Rail, Boston South Rail, Logan).
Boston airports
- Boston City Heliport-JBCFind
- Boston RT128 Rail-ZRUFind
- Boston South Rail-ZTOFind
- Logan-BOSfrom $80Find
San Juan airports
- Isla Grande-SIGFind
- Luis Munoz Marin Intl-SJUFind
Airplanes
There are flights to San Juan from Boston by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Boston
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Top International Destinations from Boston
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane ticket yourself?
- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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