BWI - SJU

$64 Find Cheap Flights from Baltimore to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Luis Munoz Marin Intl departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Juan.
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Flights Deals

Cheap Flight Deals from Baltimore to San Juan (BWI-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Baltimore to Luis Munoz Marin Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Baltimore to Luis Munoz Marin Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Spirit Airlines Logo
6:51 pm - 10:38 pmBWI-SJU
3h 47mnonstop
Spirit Airlines Logo
1:39 pm - 5:40 pmSJU-BWI
4h 01mnonstop
$125Spirit Airlines
Find Deal
Fri, May 16 - Sat, May 31
Spirit Airlines Logo
7:06 pm - 10:53 pmBWI-SJU
3h 47mnonstop
Spirit Airlines Logo
1:39 pm - 5:40 pmSJU-BWI
4h 01mnonstop
$137Spirit Airlines
Find Deal
Thu, May 29 - Fri, Jun 6
Spirit Airlines Logo
6:51 pm - 10:38 pmBWI-SJU
3h 47mnonstop
Spirit Airlines Logo
1:39 pm - 5:40 pmSJU-BWI
4h 01mnonstop
$138Spirit Airlines
Find Deal
Sat, May 24 - Fri, May 30
Spirit Airlines Logo
7:06 pm - 10:53 pmBWI-SJU
3h 47mnonstop
Spirit Airlines Logo
1:39 pm - 5:40 pmSJU-BWI
4h 01mnonstop
$140Spirit Airlines
Find Deal
Sun, May 25 - Thu, May 29
Spirit Airlines Logo
6:51 pm - 10:38 pmBWI-SJU
3h 47mnonstop
Spirit Airlines Logo
1:39 pm - 5:40 pmSJU-BWI
4h 01mnonstop
$148Spirit Airlines
Find Deal
Wed, May 28 - Sat, Jun 7
Spirit Airlines Logo
11:54 am - 7:07 pmBWI-SJU
7h 13m1 stop
Spirit Airlines Logo
1:39 pm - 5:40 pmSJU-BWI
4h 01mnonstop
$150Spirit Airlines
Find Deal
Fri, May 16 - Sat, May 31
 Logo
7:06 pm - 10:53 pmBWI-SJU
3h 47mnonstop
 Logo
6:00 am - 10:00 amSJU-BWI
4h 00mnonstop
Thu, May 15 - Mon, May 19
Frontier Logo
12:54 pm - 4:46 pmBWI-SJU
3h 52mnonstop
Frontier Logo
7:58 am - 11:59 amSJU-BWI
4h 01mnonstop
$198Frontier
Find Deal
Mon, Jul 7 - Fri, Jul 18
Frontier Logo
11:00 am - 2:47 pmBWI-SJU
3h 47mnonstop
Frontier Logo
6:00 am - 10:00 amSJU-BWI
4h 00mnonstop
$215Frontier
Find Deal
Fri, May 9 - Fri, May 16
Frontier Logo
12:47 pm - 4:38 pmBWI-SJU
3h 51mnonstop
Frontier Logo
8:15 am - 12:16 pmSJU-BWI
4h 01mnonstop
$242Frontier
Find Deal
Fri, Jul 4 - Wed, Jul 9
Expert advice

Expert advice for your flight from Baltimore to Luis Munoz Marin Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Spirit Airlines

Spirit's Big Front Seat offers 20-inch width and extra legroom for a nominal fee.


Spirit's Wi-Fi offers gate-to-gate connectivity, ideal for staying online throughout the flight.

Frontier

Frontier's Economy Bundle includes a carry-on bag and seat selection, avoiding extra fees.


Frontier's Premium Bundle offers extra legroom seats and priority boarding for a small fee.

Read more about Frontierby Stefanie Waldek
Southwest

Southwest offers two free checked bags, ideal for travelers with lots of luggage.


Download the Southwest app for free in-flight entertainment and messaging.

Read more about Southwestby Blane Bachelor
Airports
BWI

BWI offers a street pricing policy for dining, ensuring airport prices match local rates. Arrive early to enjoy shopping and dining.

Read more about BWIby Harriet Baskas
SJU

For a quick trip to San Juan, taxis or Uber are recommended. They offer convenience and avoid parking hassles.

Read more about SJUby Gabriel Leigh
Our travel experts
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez

Joe Cortez

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on BWI

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Useful Info

KAYAK's insights & trends for Baltimore to Luis Munoz Marin Intl flights

Get data-powered insights and trends into flights from Baltimore to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.
Find cheap flights to San Juan
Find cheap flights to San Juan

Planning a trip from Baltimore to Luis Munoz Marin Intl? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Baltimore to San Juan?

The average price of all round-trip flights from Baltimore to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Baltimore to San Juan, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Baltimore, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Baltimore to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Baltimore to San Juan Luis Munoz Marin Intl Airport is March, where tickets cost $232 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $385 and $314 respectively.

How far in advance should I book a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Baltimore to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Baltimore to San Juan Luis Munoz Marin Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low season

October

High season

December

Cheapest flight

$64
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 33% increase in price.
Flight from Baltimore to San Juan

When to book flights from Baltimore to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Baltimore to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Baltimore to San Juan flights

  • What is the cheapest flight from Baltimore to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport was $64 for a one-way ticket and $125 for a round-trip.

  • Do I need a passport to fly between Baltimore and San Juan?

    A passport is required to fly from Baltimore to San Juan.

  • Which airlines offer Wi-Fi service onboard planes from Baltimore to San Juan?

    JetBlue, American Airlines, Delta, and Alaska Airlines offer inflight Wi-Fi service on the Baltimore to San Juan flight route.

  • Which aircraft models fly most regularly from Baltimore to San Juan?

    The Airbus A321neo is the aircraft model that flies most regularly on the Baltimore to San Juan flight route.

  • On which days can I fly direct from Baltimore to San Juan?

    There are nonstop flights from Baltimore to San Juan on a daily basis.

  • Which is the best airline for flights from Baltimore to San Juan, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Baltimore to San Juan are Southwest and Delta. With an average price for the route of $470 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $405 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Baltimore to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Baltimore to San Juan Luis Munoz Marin Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $93 or less one-way and $198 or less round-trip.

Prefer to fly direct from Baltimore to San Juan?

Find which airlines fly direct from Baltimore/Washington Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Baltimore/Washington to San Juan Luis Munoz Marin Intl

Monday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Tuesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Wednesday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Thursday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Friday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Saturday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Sunday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Baltimore/Washington

Monday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Tuesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Wednesday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Thursday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Friday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Saturday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Sunday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

See more direct flights
See more direct flights

Top 5 airlines serving from Baltimore to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4292 reviews
8.0Comfort
7.6Entertainment
7.1Food
8.2Boarding
8.6Crew
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

I love Spirit. New aircraft, great cabin service, the airfares are low cost which helps me visit my hospitalized daughter anytime I can without paying a fortune.

Flight was 2hours late they had no crew or the pilot.

I paid for streaming wifi and the connection was poor.

We had an 8 hr delay so it was not good

The flight attendant spilled ice all down my leg and all over my suede boots and didn’t even apologize or anything. They just gave me a look like “what?!” Incredibly rude and dismissive. I saw them roll their eyes at other guests and even once yell at a lady with a baby.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

Easy boarding. Met expectations for a 2-3 hour flight. Early arrival at DFW caused a 39 minute delay on the tarmac in getting to our gate. 😏 overall, good flight.

Very dissatisfied with spirit airlines after buying my ticket's they cancelled our flights with no reasoning.

Most uncomfortable seating I have ever experienced. And they do not provide any beverage unless purchased. Water was 4.59 a bottle. Same for a soda. A cup of water should be free. I will never fly Spirit again.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

Everything you need to know for your flight from Baltimore to Luis Munoz Marin Intl

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