$125+ Cheap flights from Baltimore (BWI) to Puerto Rico
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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SJU
Aug 1 — Aug 81
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Puerto Rico 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.Cheap flight deals from Baltimore to Puerto Rico
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Cheapest flights from Baltimore to Puerto RicoExplore the most affordable flight options available from Baltimore to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2026.
Explore the most affordable flight options available from Baltimore to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2026.
This Frontier deal was found by Cheapflights users on 6/28. 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.
Tue 7/2812:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Tue 8/47:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$268
This eDestinos deal was found by Cheapflights users on 6/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:44 pm
BWI
- SJU
Nonstop4h 00m
Frontier
Wed 7/87:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/27![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 8/1712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Sat 8/222:14 pm
SJU
- BWI
Nonstop4h 09m
Frontier
Deal found 6/27![Frontier logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Tue 7/147:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$272
This Frontier deal was found by Cheapflights users on 6/28. 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.
Tue 6/308:44 pm
BWI
- SJU
Nonstop4h 00m
Frontier
Thu 7/97:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/277:18 pm
BWI
- SJU
Nonstop4h 02m
Frontier
Mon 8/318:34 am
SJU
- BWI
2 stops22h 52m
Frontier
Deal found 6/29![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Mon 8/107:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/16:35 am
BWI
- SJU
2 stops18h 06m
Frontier
Wed 8/57:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$277
This Frontier deal was found by Cheapflights users on 6/28. 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.
Sat 7/48:44 pm
BWI
- SJU
Nonstop4h 00m
Frontier
Thu 7/167:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 8/257:18 pm
BWI
- SJU
Nonstop4h 02m
Frontier
Fri 8/285:37 pm
SJU
- BWI
1 stop17h 08m
Frontier
Deal found 6/27![Frontier logo]()
$279
This Frontier deal was found by Cheapflights users on 6/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Wed 7/87:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/30![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/277:52 pm
BWI
- BQN
1 stop30h 18m
Frontier
Sun 8/303:10 am
BQN
- BWI
1 stop11h 25m
Frontier
Deal found 6/29![Frontier logo]()
$328
Best flights from Baltimore to Puerto RicoDiscover carefully curated flight deals from Baltimore to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2026.
Discover carefully curated flight deals from Baltimore to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2026.
This Southwest deal was found by Cheapflights users on 6/28. 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 9/174:20 pm
BWI
- SJU
1 stop6h 45m
Southwest
Tue 9/222:25 pm
SJU
- BWI
Nonstop4h 10m
Southwest
Deal found 6/28![Southwest logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sat 8/86:35 am
BWI
- BQN
2 stops19h 35m
Frontier
Tue 8/113:10 am
BQN
- BWI
1 stop13h 53m
Frontier
Deal found 7/1![Frontier logo]()
$340
This deal was found by Cheapflights users on 6/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:00 pm
BWI
- BQN
1 stop8h 33m
JetBlue
Wed 7/295:01 am
BQN
- BWI
1 stop9h 57m
JetBlue
Deal found 6/29![JetBlue logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/1312:35 pm
BWI
- MAZ
1 stop24h 09m
Multiple Airlines
Fri 7/171:19 pm
MAZ
- BWI
2 stops22h 51m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$485
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:16 am
BWI
- BQN
2 stops14h 53m
United Airlines
Tue 8/1112:15 am
BQN
- BWI
2 stops13h 43m
United Airlines
Deal found 7/1![United Airlines logo]()
$489
This Southwest deal was found by Cheapflights users on 6/26. 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.
Wed 9/98:25 am
BWI
- SJU
Nonstop4h 25m
Southwest
Thu 9/2410:00 am
SJU
- BWI
1 stop8h 50m
Southwest
Deal found 6/26![Southwest logo]()
$336
This Southwest deal was found by Cheapflights users on 6/27. 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 8/119:35 am
BWI
- SJU
2 stops8h 35m
Southwest
Tue 8/185:15 am
SJU
- BWI
2 stops8h 00m
Southwest
Deal found 6/27![Southwest logo]()
$340
This Frontier deal was found by Cheapflights users on 6/26. 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 8/139:28 pm
BWI
- SJU
1 stop10h 29m
Frontier
Mon 8/177:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/26![Frontier logo]()
$386
This Southwest deal was found by Cheapflights users on 6/27. 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.
Wed 8/198:10 am
BWI
- SJU
2 stops8h 15m
Southwest
Wed 8/265:15 am
SJU
- BWI
2 stops8h 00m
Southwest
Deal found 6/27![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 6/29. 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 8/2410:25 am
BWI
- SJU
2 stops9h 40m
Southwest
Tue 9/15:15 am
SJU
- BWI
2 stops9h 50m
Southwest
Deal found 6/29![Southwest logo]()
$340
This Priceline deal was found by Cheapflights users on 6/26. 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.
Sat 7/114:19 pm
BWI
- SJU
1 stop8h 04m
Frontier
Mon 7/136:09 pm
SJU
- BWI
1 stop14h 45m
Frontier
Deal found 6/26![Frontier logo]()
$416
This deal was found by Cheapflights users on 6/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:00 pm
BWI
- BQN
1 stop8h 33m
JetBlue
Fri 7/315:01 am
BQN
- BWI
1 stop9h 57m
JetBlue
Deal found 6/29![JetBlue logo]()
$466
This CheapOair deal was found by Cheapflights users on 6/28. 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 8/79:38 pm
BWI
- BQN
1 stop13h 56m
Multiple Airlines
Tue 8/118:39 am
BQN
- BWI
2 stops14h 48m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$485
This United Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:09 am
BWI
- BQN
2 stops14h 00m
United Airlines
Fri 10/912:15 am
BQN
- BWI
2 stops16h 12m
United Airlines
Deal found 6/27![United Airlines logo]()
$490
This Southwest deal was found by Cheapflights users on 6/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:10 pm
BWI
- SJU
1 stop13h 00m
Southwest
Mon 8/245:00 am
SJU
- BWI
1 stop7h 15m
Southwest
Deal found 6/30![Southwest logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Mon 8/1012:35 pm
BWI
- VQS
1 stop20h 55m
Multiple Airlines
Fri 8/143:18 pm
VQS
- BWI
1 stop20h 22m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$497
This Southwest deal was found by Cheapflights users on 6/29. 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 8/1710:45 am
BWI
- SJU
1 stop6h 10m
Southwest
Tue 8/258:20 am
SJU
- BWI
2 stops8h 15m
Southwest
Deal found 6/29![Southwest logo]()
$340
This JetBlue deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:00 pm
BWI
- BQN
1 stop8h 33m
JetBlue
Fri 7/315:01 am
BQN
- BWI
1 stop9h 57m
JetBlue
Deal found 6/27![JetBlue logo]()
$500
This Frontier deal was found by Cheapflights users on 7/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:09 pm
BWI
- BQN
1 stop10h 56m
Frontier
Tue 7/2112:04 pm
BQN
- BWI
1 stop11h 55m
Frontier
Deal found 7/1![Frontier logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sat 8/1512:35 pm
BWI
- CPX
1 stop24h 11m
Multiple Airlines
Sat 8/2211:40 am
CPX
- BWI
1 stop6h 43m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$501
This CheapOair deal was found by Cheapflights users on 6/29. 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.
Thu 8/133:21 pm
BWI
- BQN
1 stop10h 49m
Multiple Airlines
Mon 8/176:55 pm
BQN
- BWI
2 stops19h 58m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$506
This Southwest deal was found by Cheapflights users on 6/28. 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.
Fri 8/216:45 pm
BWI
- SJU
Nonstop4h 05m
Southwest
Mon 8/316:00 am
SJU
- BWI
2 stops9h 35m
Southwest
Deal found 6/28![Southwest logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:35 pm
BWI
- MAZ
1 stop24h 09m
Multiple Airlines
Sun 7/194:36 pm
MAZ
- BWI
2 stops19h 34m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$547
This Southwest deal was found by Cheapflights users on 6/29. 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 8/119:35 am
BWI
- SJU
2 stops8h 35m
Southwest
Sun 8/165:00 am
SJU
- BWI
2 stops6h 55m
Southwest
Deal found 6/29![Southwest logo]()
$428
This Southwest deal was found by Cheapflights users on 7/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:10 am
BWI
- SJU
2 stops8h 15m
Southwest
Sun 9/205:00 am
SJU
- BWI
2 stops6h 55m
Southwest
Deal found 7/1![Southwest logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/1412:35 pm
BWI
- MAZ
1 stop21h 07m
Multiple Airlines
Sat 7/184:36 pm
MAZ
- BWI
1 stop19h 04m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$572
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/412:35 pm
BWI
- VQS
1 stop5h 55m
Multiple Airlines
Mon 8/105:59 pm
VQS
- BWI
1 stop17h 41m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/46:15 am
BWI
- VQS
2 stops12h 15m
United Airlines
Mon 8/107:30 am
VQS
- BWI
2 stops32h 58m
United Airlines
Deal found 6/29![United Airlines logo]()
$1,427
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Wed 7/1510:32 am
BWI
- MAZ
2 stops29h 39m
United Airlines
Sun 7/191:19 pm
MAZ
- BWI
2 stops11h 09m
United Airlines
Deal found 6/30![United Airlines logo]()
$1,708
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/116:05 am
BWI
- CPX
2 stops11h 16m
United Airlines
Sun 8/1610:48 am
CPX
- BWI
2 stops29h 40m
United Airlines
Deal found 6/28![United Airlines logo]()
$1,708
Last-minute flights from Baltimore to Puerto RicoDiscover last-minute flight deals from Baltimore to Puerto Rico. Data last updated July 2, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Puerto Rico. Data last updated July 2, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 6/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:44 pm
BWI
- SJU
Nonstop4h 00m
Frontier
Wed 7/87:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/27![Frontier logo]()
$270
This Expedia deal was found by Cheapflights users on 6/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:44 pm
BWI
- SJU
Nonstop4h 00m
Frontier
Fri 7/107:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$273
This Frontier deal was found by Cheapflights users on 6/28. 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.
Sat 7/48:44 pm
BWI
- SJU
Nonstop4h 00m
Frontier
Thu 7/167:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Tue 7/147:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$272
This Frontier deal was found by Cheapflights users on 6/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Thu 7/97:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/30![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 6/28. 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.
Tue 7/2812:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Tue 8/47:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/16:35 am
BWI
- SJU
2 stops18h 06m
Frontier
Wed 8/57:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Mon 8/107:34 am
SJU
- BWI
Nonstop4h 06m
Frontier
Deal found 6/28![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 8/1712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Sat 8/222:14 pm
SJU
- BWI
Nonstop4h 09m
Frontier
Deal found 6/27![Frontier logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 8/257:18 pm
BWI
- SJU
Nonstop4h 02m
Frontier
Fri 8/285:37 pm
SJU
- BWI
1 stop17h 08m
Frontier
Deal found 6/27![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/277:18 pm
BWI
- SJU
Nonstop4h 02m
Frontier
Mon 8/318:34 am
SJU
- BWI
2 stops22h 52m
Frontier
Deal found 6/29![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/277:52 pm
BWI
- BQN
1 stop30h 18m
Frontier
Sun 8/303:10 am
BQN
- BWI
1 stop11h 25m
Frontier
Deal found 6/29![Frontier logo]()
$328
One-way flights from Baltimore to Puerto RicoSearch for one-way flight options from Baltimore to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
Search for one-way flight options from Baltimore to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 9/229:24 am
BWI
- SJU
2 stops14h 33m
Frontier
Deal found 6/27![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 9/249:20 pm
BWI
- SJU
2 stops26h 37m
Frontier
Deal found 6/28![Frontier logo]()
$126
This Frontier deal was found by Cheapflights users on 6/28. 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.
Mon 7/612:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Deal found 6/28![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sat 8/19:37 pm
BWI
- SJU
2 stops51h 04m
Frontier
Deal found 7/1![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:36 am
BWI
- SJU
2 stops16h 05m
Frontier
Deal found 6/30![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/218:36 am
BWI
- SJU
2 stops16h 05m
Frontier
Deal found 6/29![Frontier logo]()
$132
This eDestinos deal was found by Cheapflights users on 6/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Deal found 6/28![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 6/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Deal found 6/30![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/207:27 pm
BWI
- SJU
1 stop29h 01m
Frontier
Deal found 6/29![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/209:32 pm
BWI
- SJU
2 stops27h 24m
Frontier
Deal found 6/29![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:32 pm
BWI
- SJU
2 stops27h 24m
Frontier
Deal found 6/30![Frontier logo]()
$138
This CheapOair deal was found by Cheapflights users on 6/30. 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 7/2212:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Deal found 6/30![Frontier logo]()
$139
Find flight deals from Baltimore to Puerto Rico
Keep the following information in mind while searching for Baltimore to Puerto Rico flight deals. Data was last updated July 2, 2026.
Round-trip from | $268 (Frontier) |
|---|---|
One-way from | $125 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $399 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore to Puerto Rico 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 2, 2026.
Use the filters below to find and compare flights from Baltimore to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Thu 9/17
4:20 pm-11:05 pm
1 stop6h 45m
San Juan Luis Munoz Marin Intl
Tue 9/22
2:25 pm-6:35 pm
Nonstop4h 10m
$336
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Wed 9/9
8:25 am-12:50 pm
Nonstop4h 25m
San Juan Luis Munoz Marin Intl
Thu 9/24
10:00 am-6:50 pm
1 stop8h 50m
$336
BaltimoreAguadilla
BWI - BQN
BWIBQN
Baltimore/Washington
Sat 8/8
6:35 am-2:10 am
2 stops19h 35m
Aguadilla Borinquen
Tue 8/11
3:10 am-5:03 pm
1 stop13h 53m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Tue 8/11
9:35 am-6:10 pm
2 stops8h 35m
San Juan Luis Munoz Marin Intl
Tue 8/18
5:15 am-1:15 pm
2 stops8h 00m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Wed 8/19
8:10 am-4:25 pm
2 stops8h 15m
San Juan Luis Munoz Marin Intl
Wed 8/26
5:15 am-1:15 pm
2 stops8h 00m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Mon 8/24
10:25 am-8:05 pm
2 stops9h 40m
San Juan Luis Munoz Marin Intl
Tue 9/1
5:15 am-3:05 pm
2 stops9h 50m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Thu 8/20
8:10 pm-9:10 am
1 stop13h 00m
San Juan Luis Munoz Marin Intl
Mon 8/24
5:00 am-12:15 pm
1 stop7h 15m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Mon 8/17
10:45 am-4:55 pm
1 stop6h 10m
San Juan Luis Munoz Marin Intl
Tue 8/25
8:20 am-4:35 pm
2 stops8h 15m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Thu 8/13
9:28 pm-7:57 am
1 stop10h 29m
San Juan Luis Munoz Marin Intl
Mon 8/17
7:34 am-11:40 am
Nonstop4h 06m
$386
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Sat 7/11
4:19 pm-12:23 am
1 stop8h 04m
San Juan Luis Munoz Marin Intl
Mon 7/13
6:09 pm-8:54 am
1 stop14h 45m
$416
Showing 1-10 of 50 resultsSorted by cheapest first
Best time to book a flight from Baltimore to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Baltimore with our price prediction graph.
BWI-SJU
BWI-BQN
BWI-VQS
BWI-MAZ
BWI-CPX
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 Baltimore to Puerto Rico
BWI-PR0
BWI-SJU
BWI-BQN
BWI-VQS
BWI-MAZ
What is the cheapest month to book a flight from Baltimore to Puerto Rico?
Currently, September is the cheapest month in which you can book a flight from Baltimore to Puerto Rico (average of $68). Flying from Baltimore to Puerto Rico in May is currently the most expensive (average of $867). 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 BWI to PR?
Find hourly flight availability from Baltimore to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 2, 2026.
It’s optimal to fly from Baltimore to Puerto Rico at noon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the morning.
How often are flights from Baltimore to Puerto Rico delayed?
About 26% of weekly flights between Baltimore and Puerto Rico have experienced delays in the past year, with the average delay time being 137 minutes.
What is the most punctual flight time for Baltimore to Puerto Rico flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday 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 Baltimore to Puerto Rico flights?
Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 22% of flights being delayed.
How far ahead should I book a flight from Baltimore to Puerto Rico?
The price you pay for your flight from Baltimore to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 78 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 Baltimore to Puerto Rico?
Use this chart to determine the cheapest time to fly round-trip from Baltimore to Puerto Rico. Price data was last updated on June 27, 2026.
Travelers seeking maximum savings on their Baltimore to Puerto Rico flight should consider departing on Sunday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated July 2, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from Baltimore to Puerto Rico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Related info for your journey
Find useful and relevant information for your journey from Baltimore to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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Alternative routes for Baltimore to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to Puerto Rico by cabin class
Find flights from Baltimore to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and Puerto Rico flights
Browse other Baltimore and Puerto Rico flight options. Last updated on July 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Baltimore to Puerto Rico flights
Consider these flights traveling from Baltimore to Puerto Rico.
Top 6 airlines flying from Baltimore to Puerto Rico
Discover the top 6 airlines that operate flights from Baltimore to Puerto Rico. 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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$345 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$135 | Average$748 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$146 | Average$425 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$172 | Average$491 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$255 | Average$447 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$368 | Average$547 | FlexibilityNo cancel fee | On-time63% |