$125+ Cheap flights from Baltimore (BWI) to San Juan
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 San Juan 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 Baltimore/Washington to San Juan are usually found in January or February, booked 79 days in advance, depart on a Monday or Sunday and return on a Thursday
Cheap flight deals from Baltimore to San Juan
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to San JuanExplore the most affordable flight options available from Baltimore to San Juan. 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 San Juan. 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
Tue 7/147:34 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
Best flights from Baltimore to San JuanDiscover carefully curated flight deals from Baltimore to San Juan 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 San Juan 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 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.
Sat 12/55:10 pm
BWI
- SJU
Nonstop4h 10m
JetBlue
Sat 12/121:00 pm
SJU
- BWI
Nonstop4h 15m
JetBlue
Deal found 6/27![JetBlue logo]()
$341
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 10/221:00 pm
BWI
- SJU
2 stops7h 55m
Southwest
Mon 10/266:30 am
SJU
- BWI
2 stops8h 25m
Southwest
Deal found 6/30![Southwest logo]()
$340
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:10 pm
BWI
- SJU
Nonstop4h 10m
JetBlue
Sun 12/131:00 pm
SJU
- BWI
Nonstop4h 15m
JetBlue
Deal found 7/1![JetBlue logo]()
$341
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 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.
Thu 12/38:00 pm
BWI
- SJU
1 stop12h 55m
Southwest
Tue 12/87:40 am
SJU
- BWI
2 stops9h 55m
Southwest
Deal found 7/1![Southwest logo]()
$340
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.
Thu 8/271:50 pm
BWI
- SJU
2 stops9h 15m
Southwest
Mon 8/3110:00 am
SJU
- BWI
1 stop6h 30m
Southwest
Deal found 6/27![Southwest logo]()
$340
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.
Thu 9/1710:45 am
BWI
- SJU
1 stop6h 10m
Southwest
Mon 9/216:30 am
SJU
- BWI
2 stops7h 50m
Southwest
Deal found 7/1![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.
Thu 11/127:00 am
BWI
- SJU
2 stops9h 00m
Southwest
Mon 11/167:40 am
SJU
- BWI
2 stops8h 45m
Southwest
Deal found 6/29![Southwest logo]()
$384
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:45 pm
BWI
- SJU
Nonstop4h 05m
Southwest
Wed 9/162:25 pm
SJU
- BWI
Nonstop4h 10m
Southwest
Deal found 7/2![Southwest logo]()
$419
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 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.
Fri 10/238:15 am
BWI
- SJU
Nonstop4h 10m
Southwest
Mon 10/261:05 pm
SJU
- BWI
1 stop11h 00m
Southwest
Deal found 6/27![Southwest logo]()
$424
Last-minute flights from Baltimore to San JuanDiscover last-minute flight deals from Baltimore to San Juan. Data last updated July 2, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to San Juan. 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
Wed 7/87:34 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
One-way flights from Baltimore to San JuanSearch for one-way flight options from Baltimore to San Juan. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
Search for one-way flight options from Baltimore to San Juan. 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.
Tue 7/712:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Deal found 6/28![Frontier logo]()
$129
This Super.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 Super.com 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 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 Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1612:35 pm
BWI
- SJU
Nonstop4h 05m
Frontier
Deal found 7/1![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 San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to San Juan (PR1). 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 2, 2026.
Round-trip from | $268 (Frontier) |
|---|---|
One-way from | $125 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $334 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore to San Juan 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 San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest 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
Thu 10/22
1:00 pm-8:55 pm
2 stops7h 55m
San Juan Luis Munoz Marin Intl
Mon 10/26
6:30 am-2:55 pm
2 stops8h 25m
$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
Thu 12/3
8:00 pm-9:55 am
1 stop12h 55m
San Juan Luis Munoz Marin Intl
Tue 12/8
7:40 am-4:35 pm
2 stops9h 55m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Thu 8/27
1:50 pm-11:05 pm
2 stops9h 15m
San Juan Luis Munoz Marin Intl
Mon 8/31
10:00 am-4:30 pm
1 stop6h 30m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Thu 9/17
10:45 am-4:55 pm
1 stop6h 10m
San Juan Luis Munoz Marin Intl
Mon 9/21
6:30 am-2:20 pm
2 stops7h 50m
$340
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Sat 12/5
5:10 pm-10:20 pm
Nonstop4h 10m
San Juan Luis Munoz Marin Intl
Sat 12/12
1:00 pm-4:15 pm
Nonstop4h 15m
$341
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Sat 12/5
5:10 pm-10:20 pm
Nonstop4h 10m
San Juan Luis Munoz Marin Intl
Sun 12/13
1:00 pm-4:15 pm
Nonstop4h 15m
$341
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Thu 11/12
7:00 am-5:00 pm
2 stops9h 00m
San Juan Luis Munoz Marin Intl
Mon 11/16
7:40 am-3:25 pm
2 stops8h 45m
$384
Quickest round-trip
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Sun 9/13
7:45 pm-11:50 pm
Nonstop4h 05m
San Juan Luis Munoz Marin Intl
Wed 9/16
2:25 pm-6:35 pm
Nonstop4h 10m
$419
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Baltimore to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Baltimore with our price prediction graph.
BWI-PR1
BWI-SJU
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 San Juan
BWI-PR1
BWI-SJU
What is the cheapest month to book a flight from Baltimore to San Juan?
Currently, January is the cheapest month in which you can book a flight from Baltimore to San Juan (average of $80). Flying from Baltimore to San Juan in May is currently the most expensive (average of $876). 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 SJU?
Find hourly flight availability from Baltimore to San Juan. 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.
A simple way to save on the total cost of your ticket is to fly from Baltimore to San Juan at noon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight in the morning.
How much does it cost to fly round-trip from Baltimore to San Juan?
How often are flights from Baltimore to San Juan delayed?
About 26% of weekly flights between Baltimore and San Juan 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 San Juan 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 San Juan 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 San Juan?
Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Baltimore to San Juan?
Use this chart to determine the cheapest time to fly round-trip from Baltimore to San Juan. Price data was last updated on June 27, 2026.
Travelers seeking maximum savings on their Baltimore to San Juan 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 San Juan
Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated July 2, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Baltimore to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
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 San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Baltimore to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to San Juan by cabin class
Find flights from Baltimore to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and San Juan flights
Browse other Baltimore and San Juan flight options. Last updated on July 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Baltimore to San Juan
Discover the top 6 airlines that operate flights from Baltimore to San Juan. 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$135 | Average$748 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$146 | Average$425 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$170 | Average$356 | 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% |