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$76+ 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SJU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Baltimore/Washington to San Juan are usually found in March or February, booked 17 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap 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 June 12, 2025.

Round-trip from

$160
(SmartFares)

One-way from

$76
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$293
From Baltimore/Washington to San Juan
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One-way flight from Baltimore/Washington to San Juan
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Highest demand for flights based on searches. 9% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Baltimore to San Juan

Cheapest flights from Baltimore to San Juan
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 June 12, 2025.

This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/126:48 amBWI - SJU
Nonstop3h 41mSpirit Airlines
Mon 7/141:21 amSJU - BWI
Nonstop3h 59mSpirit Airlines
Deal found 6/11$160
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 9/154:32 pmBWI - SJU
1 stop7h 22mMultiple Airlines
Mon 9/2212:55 pmSJU - BWI
Nonstop3h 58mMultiple Airlines
Deal found 6/11$172
This Priceline deal was found by Cheapflights users on 6/11. 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.
Tue 9/22:53 pmBWI - SJU
1 stop28h 15mFrontier
Thu 9/43:40 amSJU - BWI
1 stop11h 50mFrontier
Deal found 6/11$179

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 June 12, 2025.
Use the filters below to find and compare flights from Baltimore to San Juan that are best for you.

Fly from

Baltimore

Fly to

San Juan

Route

Depart

Return

Price

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sat 7/12

6:48 am-10:29 am

Nonstop3h 41m

San Juan Luis Munoz Marin Intl

Mon 7/14

1:21 am-5:20 am

Nonstop3h 59m

$160

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Mon 8/18

7:15 am-2:18 pm

1 stop7h 03m

San Juan Luis Munoz Marin Intl

Wed 8/27

12:55 pm-4:53 pm

Nonstop3h 58m

$174

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Tue 9/2

2:53 pm-7:08 pm

1 stop28h 15m

San Juan Luis Munoz Marin Intl

Fri 9/5

8:03 am-7:09 pm

1 stop11h 06m

$179

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Mon 6/30

11:23 am-7:19 pm

1 stop7h 56m

$76

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Wed 9/3

2:53 pm-2:50 am

1 stop11h 57m

$89

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sun 6/15

8:19 am-12:08 am

1 stop15h 49m

$108

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sat 9/6

10:51 am-11:57 pm

2 stops13h 06m

$164

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Tue 9/9

6:25 pm-10:30 pm

Nonstop4h 05m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.
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

How far ahead should I book a flight from Baltimore to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to San Juan. Price data was last updated on June 9, 2025.

Booking 17 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 month to book a flight from Baltimore to San Juan?

Currently, September is the cheapest month in which you can book a flight from Baltimore to San Juan (average of $254). Flying from Baltimore to San Juan in June is currently the most expensive (average of $339). 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 June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Baltimore to San Juan in the evening. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight at noon.

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 December 16, 2024.

Travelers seeking maximum savings on their Baltimore to San Juan flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Baltimore to San Juan

Explore weekly flight availability from Baltimore to San Juan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from BWI to PR1 are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Baltimore to San Juan, such as Southwest, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,295 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • What airport do you fly from for flights from Baltimore to San Juan?

    Located just 8.5 mi from the city center, Baltimore/Washington is the airport most travelers will use when flying to San Juan from Baltimore. Booking flights from Baltimore/Washington (BWI) to San Juan should be relatively easy as there are 3 daily outbound flights to San Juan from 7 different airlines.

  • What are the cheapest airlines flying from Baltimore to San Juan round-trip?

    Spirit Airlines, at $160, was found to be the cheapest airline from Baltimore to San Juan. An alternate airline flying to your destination would be Frontier. Users have found that Spirit Airlines is 45% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Baltimore to San Juan one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $76. Frontier flights start at $89 while deals on American Airlines start at $108 one-way.

  • What are the most reliable airlines from Baltimore to San Juan?

    Consider Spirit Airlines (80%), Southwest (80%) or Frontier (30%) when booking your flight. These represent the most reliable airlines when flying from Baltimore to San Juan.

  • What are the cheapest flights from Baltimore to San Juan?

    The cheapest flight price from Baltimore to San Juan is $67. On average you can expect to pay $216. The most popular route, (Baltimore/Washington - San Juan Luis Munoz Marin Intl), can usually be booked for $168.

  • Can I find deals for flights from Baltimore to San Juan that include hotel bookings?

    Yes. In addition to deals on Baltimore to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to San Juan.

  • Can I find deals for business class flights from Baltimore to San Juan?

    Yes. Cheapflights offers flight deals from Baltimore to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to San Juan (average of $254). Flying from Baltimore to San Juan in June is currently the most expensive (average of $339). 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.

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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.
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Top 7 airlines flying from Baltimore to San Juan

Discover the top 7 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$98Average$254FlexibilityNo cancel feeOn-time65%
FrontierCheapest$121Average$257FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$207Average$369FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$214Average$411FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$222Average$504FlexibilityNo cancel feeOn-time71%
DeltaCheapest$272Average$412FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$324Average$473FlexibilityNo cancel feeOn-time63%

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