SJU - BWI

$105 Find Cheap Flights from San Juan to Baltimore - Compare and Save

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Everything you should know

Cheapest round-trip
$200
Typical prices: $232-$373
Frontier
Mon 10/15Sat 10/20
SJU - BWI • Non-stop
Cheapest non-stop
$206
Typical prices: $234-$372
Frontier
Tue 12/4Fri 12/7
SJU - BWI • Non-stop
Advice from real travelers
Frontier Economy Bundle adds a carry-on and seat selection to cut extra fees.
Frontier Premium Bundle adds legroom; Southwest Rapid Rewards boosts flexibility.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with Southwest, JetBlue and Frontier. Average duration is 4h 08m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $251 (round-trip)
Shortest trip • 6h 09m (one-way)
Insights
Insights
Start a new search
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We hope you love your trip to Baltimore!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Juan to Baltimore

Thu, Oct 15 - Tue, Oct 20
Frontier Logo
4:24 pm - 8:26 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
4h 02mnonstop
Frontier Logo
1:56 pm - 3:18 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
25h 22m1 stop Fort Lauderdale
$200Frontier
Wed, Oct 21 - Tue, Oct 27
JetBlue Logo
9:00 am - 2:58 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
5h 58m1 stop Fort Lauderdale
JetBlue Logo
6:10 am - 3:23 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
9h 13m1 stop Fort Lauderdale
$200JetBlue
Tue, Oct 20 - Sat, Oct 24
JetBlue Logo
6:10 am - 2:58 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
8h 48m1 stop Fort Lauderdale
JetBlue Logo
6:09 am - 1:27 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
7h 18m1 stop Fort Lauderdale
$201JetBlue
Tue, Oct 20 - Tue, Oct 27
Frontier Logo
3:04 am - 10:05 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
7h 01m1 stop Miami
Frontier Logo
10:54 am - 11:39 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
12h 45m1 stop Miami
$203Frontier
Fri, Nov 6 - Mon, Nov 9
Multiple Airlines Logo
1:30 pm - 4:23 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
3h 53mnonstop
Multiple Airlines Logo
1:56 pm - 3:19 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
24h 23m1 stop Fort Lauderdale
$274Multiple Airlines
Sat, Nov 7 - Tue, Nov 17
Multiple Airlines Logo
1:30 pm - 4:23 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
3h 53mnonstop
Multiple Airlines Logo
10:54 am - 11:38 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
11h 44m1 stop Miami
$279Multiple Airlines
Thu, Oct 22 - Thu, Oct 29
American Airlines Logo
3:51 pm - 11:59 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
8h 08m1 stop Charlotte Douglas
American Airlines Logo
7:19 pm - 9:46 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
14h 27m1 stop Miami
$306American Airlines
Tue, Nov 24 - Tue, Dec 1
American Airlines Logo
7:45 am - 6:32 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
11h 47m1 stop Miami
American Airlines Logo
7:22 pm - 10:44 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
14h 22m1 stop Miami
$306American Airlines
Thu, Nov 12 - Thu, Nov 12
Southwest Logo
6:35 am - 9:45 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
4h 10mnonstop
Southwest Logo
8:05 pm - 1:10 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
4h 05mnonstop
$350Southwest
Wed, Oct 21 - Mon, Oct 26
Southwest Logo
5:50 am - 10:00 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
4h 10mnonstop
Southwest Logo
8:00 pm - 12:10 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
4h 10mnonstop
$355Southwest
Booking Insights

Price, demand and travel trends for San Juan Luis Munoz Marin Intl Airport to Baltimore flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Baltimore?

Round-trip flights from San Juan Luis Munoz Marin Intl Airport to Baltimore typically range from $232 to $373. The lowest price found in the past 5 days was $200, on Frontier.

What's the cheapest day of the week to fly from San Juan Luis Munoz Marin Intl Airport to Baltimore?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from San Juan Luis Munoz Marin Intl Airport to Baltimore. It’s 8% cheaper than the average day, while Sunday is the most expensive, with prices 33% higher.

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

•January is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Baltimore at $208 round-trip.
•June ($339) and July ($335) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 62% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from San Juan Luis Munoz Marin Intl Airport to Baltimore the cheapest?

Flights from San Juan Luis Munoz Marin Intl Airport to Baltimore are cheapest 10 weeks before departure. Booking in this window typically costs about 20% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from San Juan to Baltimore

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
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.

Key details for San Juan Luis Munoz Marin Intl Airport to Baltimore flights

Low season

February

Cheapest flight

$105
Beat the crowds with an average 42% drop in travelers.
The most popular month to fly with an average 46% increase in travelers.
One-way flight from San Juan Luis Munoz Marin Intl Airport to Baltimore

When to book flights from San Juan to Baltimore

Are your dates flexible? Find out the best times to travel from San Juan to Baltimore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from San Juan to Baltimore: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from San Juan to Baltimore 
JoseFlew with Frontier-Apr 2026
San Juan airport is just like any other airport, just remember to do the agricultural inspection thing, but only usually take like an extra 10 minutes.
AlexisFlew with Spirit Airlines-Apr 2025
Go early to the airport. Pay for your baggage early to get a discount.

Your San Juan Luis Munoz Marin Intl Airport to Baltimore flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    These are the earliest and latest flight times available from San Juan Luis Munoz Marin Intl Airport to Baltimore:

    • Earliest: departs at 5:30 am and lands at 9:38 am
    • Latest: departs at 9:25 pm and lands at 1:33 am.

    The flight takes about 4h 08m.

  • What cabin classes can I book on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Three cabin classes are available on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore:

    • Economy Class
    • Premium Economy Class
    • First Class

  • How long is a flight from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    A nonstop flight from San Juan Luis Munoz Marin Intl Airport to Baltimore takes 4h 08m, covering 1,568 miles.

  • Do I need a passport to fly from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a San Juan Luis Munoz Marin Intl Airport to Baltimore flight?

    Round-trip flights from San Juan Luis Munoz Marin Intl Airport to Baltimore range from $232 to $373, with an average of $296 over the past 12 months. Anything below $232 counts as a good deal.

  • How expensive are last-minute San Juan Luis Munoz Marin Intl Airport to Baltimore flights?

    Last-minute fares on this route (booked within two weeks of departure) run 7% above the $296 route average. Book 10 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $251 round-trip via Houston George Bush Intcntl (IAH), compared to $296 for nonstop.

  • How does on-time performance compare across airlines flying from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Frontier is slightly above the route average for timely arrivals, while Southwest has a lower on-time arrival rate. On-time arrival rates on San Juan Luis Munoz Marin Intl Airport to Baltimore flights are:

    • Frontier: 86% on time
    • Southwest: 86% on time
    • Spirit Airlines: 79% on time

    Overall, flights on this route are punctual 85% of the time on average.

  • What is the standard checked-bag allowance on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    The Airbus A321neo family is used most often on this route, operated mainly by Frontier. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from San Juan Luis Munoz Marin Intl Airport to Baltimore spread across the day?

    Morning is the busiest departure period on San Juan Luis Munoz Marin Intl Airport to Baltimore flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

  • How are flight prices from San Juan Luis Munoz Marin Intl Airport to Baltimore looking right now?

    One-way fares from San Juan Luis Munoz Marin Intl Airport to Baltimore are currently lower than usual. Average one-way flight prices are about $144, which is 29% below the typical average for this route.

  • What car rental options are available at Baltimore/Washington Airport (BWI)?

    Baltimore/Washington Airport (BWI) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include:

    • NextCar
    • Hertz
    • Dollar
    • Thrifty
    • Budget

  • Which airports can I use when flying from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Flights from San Juan Luis Munoz Marin Intl Airport to Baltimore usually depart from San Juan Luis Munoz Marin Intl (SJU) and arrive at Baltimore/Washington (BWI).

  • What time of day has the fewest delays on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Morning flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Juan Luis Munoz Marin Intl Airport to Baltimore route, 15% of flights were delayed in the past 3 months, with delays averaging 2h 22m.

  • Which airports do connecting flights from San Juan Luis Munoz Marin Intl Airport to Baltimore pass through?

    One-stop flights from San Juan Luis Munoz Marin Intl Airport to Baltimore most commonly connect through:

    • Orlando (MCO) - 34% of one-stop connections
    • Charlotte Douglas (CLT) - 33% of one-stop connections
    • Miami (MIA) - 16% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Yes. Flexible dates can save you up to 31% on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore. Tuesday is the cheapest departure day at $275 round-trip on average, while Sunday is the most expensive at $394, a difference of $119.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    3 airlines operate flights between San Juan Luis Munoz Marin Intl Airport and Baltimore. The airlines offering nonstop flights on this route include:

    • Southwest
    • JetBlue
    • Frontier

  • How much time can I save by choosing a different layover airport from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Flying via Fort Lauderdale (FLL) gives the shortest average 1-stop total travel time at 6h 09m, compared with 6h 42m via Atlanta Hartsfield-Jackson (ATL) and 7h 37m via Orlando (MCO).

  • What popular places can I visit in Baltimore?

    Some of the most popular sights in Baltimore are M&T Bank Stadium, National Aquarium Baltimore and Oriole Park At Camden Yards. These are among the most viewed places in Baltimore on KAYAK.

  • Which airlines offer extra legroom and free seat selection on San Juan Luis Munoz Marin Intl Airport to Baltimore flights?

    Among airlines operating San Juan Luis Munoz Marin Intl Airport to Baltimore flights:

    • Frontier: offers free seat selection
    • Southwest: offers free seat selection
    • JetBlue: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on San Juan Luis Munoz Marin Intl Airport to Baltimore flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Frontier: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking San Juan Luis Munoz Marin Intl Airport to Baltimore flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $275, about $119 less than Sunday fares (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 20% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Juan Luis Munoz Marin Intl Airport to Baltimore trip for January. Fares historically average $208 round-trip in that month - typically $131 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with Frontier. Over the past three months, 86% of Frontier flights from San Juan Luis Munoz Marin Intl Airport to Baltimore arrived on time, slightly above the route average of 85%. When flights on this route arrive late, they're delayed by an average of 2h 22m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Houston George Bush Intcntl Airport (IAH) can be cheaper than flying direct. The cheapest layover option averages $251 round-trip on this route - about $45 less than direct flights (based on the last 12 months).

Prefer to fly direct from San Juan to Baltimore?

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

Direct departures

San Juan Luis Munoz Marin Intl to Baltimore/Washington

Monday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Tuesday

Frontier,Southwest,JetBlue

Frontier,Southwest, +1 more

Wednesday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Thursday

Frontier,Southwest,JetBlue

Frontier,Southwest, +1 more

Friday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Saturday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Sunday

Frontier,Southwest,JetBlue

Frontier,Southwest, +1 more

See more direct flights

Direct returns

Baltimore/Washington to San Juan Luis Munoz Marin Intl

Monday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Tuesday

Frontier,Southwest,JetBlue

Frontier,Southwest, +1 more

Wednesday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Thursday

Frontier,Southwest,JetBlue

Frontier,Southwest, +1 more

Friday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Saturday

Southwest,Frontier,JetBlue

Southwest,Frontier, +1 more

Sunday

Frontier,Southwest,JetBlue

Frontier,Southwest, +1 more

See more direct flights

More options for your flight from San Juan to Baltimore

Complete your trip to Baltimore with a hotel stay or car rental