BWI - SJU

$80 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 2/21. 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.
1 adult
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest round-trip
$167
Overall average: $248
Spirit Airlines
Mon 3/16Wed 3/18
BWI - SJU • 1 stop
Cheapest non-stop
$168
Typical prices: $195-$399
Spirit Airlines
Fri 4/10Mon 4/13
BWI - SJU • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest's two free checked bags benefit luggage needs.
BWI's street pricing keeps dining costs reasonable.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Luis Munoz Marin Intl
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Top airlines
Spirit Airlines
Cheapest • from $167 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 22% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Luis Munoz Marin Intl!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Baltimore to Luis Munoz Marin Intl (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 Luis Munoz Marin Intl 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Mar 16 - Wed, Mar 18
Spirit Airlines Logo
8:39 pm - 8:53 am
BWI
-
SJU
12h 14m
1 stop
Spirit Airlines Logo
8:24 pm - 12:28 am
SJU
-
BWI
4h 04mnonstop
$167Spirit Airlines
Thu, Mar 5 - Tue, Mar 10
Spirit Airlines Logo
11:30 am - 11:09 pm
BWI
-
SJU
10h 39m
1 stop
Spirit Airlines Logo
8:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
$168Spirit Airlines
Sat, Feb 28 - Sat, Mar 7
Frontier Logo
9:43 pm - 2:25 am
BWI
-
SJU
3h 42mnonstop
Frontier Logo
11:34 am - 8:58 pm
SJU
-
BWI
10h 24m
1 stop
$169Frontier
Thu, Feb 26 - Thu, Mar 5
Spirit Airlines Logo
11:30 am - 11:09 pm
BWI
-
SJU
10h 39m
1 stop
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
$170Spirit Airlines
Wed, Feb 18 - Wed, Feb 25
Spirit Airlines Logo
4:45 pm - 10:17 am
BWI
-
SJU
16h 32m
1 stop
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
$171Spirit Airlines
Sat, Feb 14 - Sat, Feb 21
Frontier Logo
9:43 pm - 2:25 am
BWI
-
SJU
3h 42mnonstop
Frontier Logo
5:31 pm - 8:48 pm
SJU
-
BWI
4h 17mnonstop
$172Frontier
Thu, Feb 19 - Tue, Feb 24
Spirit Airlines Logo
11:30 am - 11:09 pm
BWI
-
SJU
10h 39m
1 stop
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
$173Spirit Airlines
Sat, Feb 21 - Sat, Feb 28
Frontier Logo
9:11 am - 6:59 pm
BWI
-
SJU
8h 48m
1 stop
Frontier Logo
7:05 am - 5:47 pm
SJU
-
BWI
11h 42m
1 stop
$174Frontier
Sun, Feb 8 - Thu, Feb 12
Spirit Airlines Logo
4:44 pm - 9:47 am
BWI
-
SJU
16h 03m
1 stop
Spirit Airlines Logo
4:36 pm - 11:31 pm
SJU
-
BWI
7h 55m
1 stop
$175Spirit Airlines
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
4:45 pm - 10:17 am
BWI
-
SJU
16h 32m
1 stop
Multiple Airlines Logo
7:05 am - 5:47 pm
SJU
-
BWI
11h 42m
1 stop
$176Multiple Airlines
Booking Insights

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 Thursdays if you are looking for the best rates. For your return to Baltimore, you’ll find the best rates on Saturdays 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 $248 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $466 and $363 respectively.

Can I save money by flying with a layover from Baltimore to San Juan Luis Munoz Marin Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $275, prices are generally cheapest when you fly direct.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

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.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

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.

Harriet Baskas

Harriet Baskas

Expert on BWI

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.

Gabriel Leigh

Gabriel Leigh

Expert on SJU

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.

Good to know

Low seasonOctober
Cheapest flight$80
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 47% 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 $80 for a one-way ticket and $167 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, and Delta 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 Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Baltimore to San Juan flight route.

  • Which airline alliances offer flights from Baltimore to San Juan?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Baltimore and San Juan, with Star Alliance being the most commonly used for this 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 $499 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 $381 and an overall rating of 7.9.

  • 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 $106 or less one-way and $214 or less round-trip.

Prefer to fly direct from Baltimore to San Juan?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Baltimore/Washington to San Juan Luis Munoz Marin Intl.
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

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Tuesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Wednesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Thursday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Friday

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +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

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Tuesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Wednesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Thursday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Friday

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Saturday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Sunday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

See more direct flights

Reviews of the 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 4267 reviews
7.0Food
7.5Entertainment
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

It would be nice to have some low carb options in the snacks.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

It was smooth sailing snags we had a really smooth landing and a great flight!

I know it's a low-cost airline. However, the seats are very basic, so after two hours of travel, they feel very uncomfortable and cannot be reclined. The two flights from Bogota to Orlando and the return flight were very punctual. The check-in process on the app works very well. I really liked the self-check-in process for luggage at the Orlando airport; it was quick, easy, and very convenient.

The entire experience was so surprisingly pleasant. And the blocked extra seat between us was such an amazing and nice bonus. Great experience all around and I can’t wait to fly with spirit again!

Everything was OK, the deicing took a long time, our connections were almost missed.

All very good except they didn’t load our walker so haven’t gotten it yet

Flight was cancelled. But kayak thought it was still on time.

For the cost you can't e too critical, but the inablitiy to recline the seat and minimal cushioning in the seats made for a less than comfortable flight. Other than that we had an ealry departure and arrival, boarding was smooth.

The flight was delayed by 2 hours and we had no food or water or chargers

Terrible Airline I will never fly that airline again. Shame on you for recommending them.

Uncomfortable seats and tiny tray table. Expensive snacks. Flight was on time and crew was pleasant but take me back to Southwest!

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

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

Other airlines flying to Baltimore

Flight deals from the most popular airlines with KAYAK users flying the route