$73 Cheap Flights from Baltimore (BWI) to San Juan (SJU)

View $73 flight on Wed, Dec 10, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)

Cheap Flights from Baltimore to San Juan (BWI-SJU)

Prices were available within the past 7 days and start at $73 for one-way flights and $146 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Dec 10 - Sat, Dec 13
BWI
Baltimore
SJU
San Juan
$146 Roundtrip, just found
$146
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Dec 10 from Baltimore to San Juan, returning Sat, Dec 13, priced at $146 just found
Frontier Airlines
Thu, Nov 6 - Thu, Dec 18
BWI
Baltimore
SJU
San Juan
$168 Roundtrip, found 4 hours ago
$168
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Nov 6 from Baltimore to San Juan, returning Thu, Dec 18, priced at $168 found 4 hours ago
Spirit Airlines
Mon, Dec 8 - Thu, Dec 18
BWI
Baltimore
SJU
San Juan
$178 Roundtrip, found 2 hours ago
$178
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Mon, Dec 8 from Baltimore to San Juan, returning Thu, Dec 18, priced at $178 found 2 hours ago
Spirit Airlines
Fri, Dec 5 - Tue, Dec 9
BWI
Baltimore
SJU
San Juan
$181 Roundtrip, just found
$181
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Dec 5 from Baltimore to San Juan, returning Tue, Dec 9, priced at $181 just found
Spirit Airlines
Mon, Dec 8 - Thu, Dec 18
BWI
Baltimore
SJU
San Juan
$182 Roundtrip, found 2 hours ago
$182
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Mon, Dec 8 from Baltimore to San Juan, returning Thu, Dec 18, priced at $182 found 2 hours ago
Spirit Airlines
Tue, Dec 9 - Thu, Dec 18
BWI
Baltimore
SJU
San Juan
$183 Roundtrip, found 6 hours ago
$183
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Tue, Dec 9 from Baltimore to San Juan, returning Thu, Dec 18, priced at $183 found 6 hours ago
Frontier Airlines
Sun, Nov 16 - Thu, Nov 20
BWI
Baltimore
SJU
San Juan
$185 Roundtrip, found 3 hours ago
$185
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Baltimore to San Juan, returning Thu, Nov 20, priced at $185 found 3 hours ago
American Airlines
Tue, Nov 4 - Wed, Nov 5
BWI
Baltimore
SJU
San Juan
$240 Roundtrip, found 6 hours ago
$240
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Nov 4 from Baltimore to San Juan, returning Wed, Nov 5, priced at $240 found 6 hours ago
United
Sat, Nov 15 - Thu, Nov 20
BWI
Baltimore
SJU
San Juan
$285 Roundtrip, just found
$285
Roundtrip
just found
Select United flight, departing Sat, Nov 15 from Baltimore to San Juan, returning Thu, Nov 20, priced at $285 just found
Southwest Airlines
Wed, Dec 3 - Wed, Dec 10
BWI
Baltimore
SJU
San Juan
$358 Roundtrip, just found
$358
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Dec 3 from Baltimore to San Juan, returning Wed, Dec 10, priced at $358 just found

Find the cheapest month to fly from Baltimore (BWI) to San Juan (SJU)

May is typically the cheapest month to fly

From $96 - $460 per traveler.

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $287
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $287
Flights from Baltimore (BWI) to San Juan (SJU)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$145
Distance
1568 mi
Average flight time
4 hours 1 min

Baltimore to San Juan Flights

The cheapest times to fly from Baltimore to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to San Juan are during the month of December. You can find some of the cheapest flights from Baltimore to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to San Juan

Sunday is one of the best days to book for cheap flights from Baltimore to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $73 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU) cost?
Grab a cheap one-way flight from $73 or cheap return flight from $146 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
The cheapest month to fly from BWI to SJU is December, when demand is low. Off-peak months are typically when better flight deals are available between these airports.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
Hop on a direct flight with Southwest Airlines and go straight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU).
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
Spirit Airlines and Southwest Airlines are popular airlines offering reasonable fares. Don't forget that flight prices from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU) can vary depending on demand, travel dates and how early you book. With Expedia's search tool, you can easily find a BWI to SJU flight that works with your plans and budget.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
When flying out of Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you can choose from an average of 2 daily direct flights to Luis Munoz Marin Intl. Airport (SJU).
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
More passengers fly between BWI and SJU at 9 AM than at any other time of day. Prefer a quieter experience? Pick a flight outside the busiest times and you're likely to save on your fare as well.
What day of the week has the most flights from BWI to SJU?
Depart on a Friday if you're looking for the best selection of flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
The first flight of the day out of Baltimore Washington Intl. Thurgood Marshall Airport (BWI) is at around 8:00AM UTC-5. Board this plane and you'll reach Luis Munoz Marin Intl. Airport (SJU) at approximately 1:05PM UTC-4. The total travel time is 4h 5m.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
Flights from BWI to SJU have an average travel time of 3 hours and 57 minutes. The distance between these two airports is 1,550 mi.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
To arrive at Luis Munoz Marin Intl. Airport (SJU) on schedule, choose a flight that leaves Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Juan from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Check out your flight options from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU). This is the only airport in San Juan you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Last-minute bookings from BWI to SJU are generally more expensive. For the lowest prices, start looking for flights as early as possible. That said, if you can play around with your travel dates, it's possible to land a cheap ticket right before your trip.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Luis Munoz Marin Intl. Airport (SJU)?
Generally, it's possible to cancel or reschedule your BWI to SJU flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.