SJU - BWI

$131 Find Cheap Flights from San Juan to Baltimore - Compare and Save

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Everything you should know

Cheapest round-trip
$207
Typical prices: $232-$373
Frontier
Sun 9/16Mon 9/17
SJU - BWI • 1 stop
Cheapest non-stop
$208
Typical prices: $234-$372
Frontier
Mon 9/10Thu 9/13
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, Frontier and JetBlue. 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
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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

Sat, Sep 12 - Sun, Sep 13
Frontier Logo
3:08 am - 10:03 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
6h 55m1 stop Miami
Frontier Logo
9:21 pm - 1:15 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
3h 54mnonstop
$207Frontier
Wed, Sep 16 - Thu, Sep 17
Frontier Logo
3:08 am - 10:03 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
6h 55m1 stop Miami
Frontier Logo
9:21 pm - 1:15 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
3h 54mnonstop
$207Frontier
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
4:19 pm - 11:09 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
18h 50m1 stop Dallas/Fort Worth
American Airlines Logo
7:10 pm - 9:24 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
14h 14m1 stop Miami
$208American Airlines
Fri, Oct 16 - Mon, Oct 19
American Airlines Logo
10:36 am - 6:29 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
7h 53m1 stop Miami
American Airlines Logo
5:00 am - 3:01 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
10h 01m1 stop Charlotte Douglas
$212American Airlines
Thu, Dec 3 - Sun, Dec 6
Multiple Airlines Logo
3:13 pm - 6:34 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
4h 21mnonstop
Multiple Airlines Logo
3:25 pm - 12:54 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
8h 29m1 stop Fort Lauderdale
$236Multiple Airlines
Sat, Oct 3 - Sun, Oct 11
Multiple Airlines Logo
4:29 pm - 10:33 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
6h 04m1 stop Fort Lauderdale
Multiple Airlines Logo
9:21 pm - 1:17 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
3h 56mnonstop
$255Multiple Airlines
Fri, Oct 16 - Wed, Oct 28
JetBlue Logo
8:50 pm - 8:45 amSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
11h 55m1 stop Orlando
JetBlue Logo
9:25 am - 8:30 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
11h 05m1 stop Nashville Intl
$259JetBlue
Thu, Sep 10 - Sun, Sep 13
JetBlue Logo
5:00 am - 1:30 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
8h 30m1 stop Orlando
JetBlue Logo
3:45 pm - 11:30 pmBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
7h 45m1 stop Orlando
$259JetBlue
Mon, Nov 2 - Mon, Nov 2
Southwest Logo
6:05 am - 1:25 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
8h 20m1 stop Tampa
Southwest Logo
8:05 pm - 1:05 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
4h 00mnonstop
$294Southwest
Mon, Nov 2 - Mon, Nov 2
Southwest Logo
7:30 am - 3:55 pmSJU  San Juan Luis Munoz Marin Intl-BWI Baltimore/Washington
9h 25m2 stops Orlando Hartford Bradley Intl
Southwest Logo
8:05 pm - 1:05 amBWI  Baltimore/Washington-SJU San Juan Luis Munoz Marin Intl
4h 00mnonstop
$294Southwest
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 from San Juan Luis Munoz Marin Intl Airport to Baltimore 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 start at $207. Prices are below average for this route right now, with typical round-trip fares ranging from $232 to $373. The lowest price found in the past 5 days was $207 on Frontier.

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

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

What is 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 prices 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

$131
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 13% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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.

  • What airlines are available 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
    • Frontier
    • JetBlue

  • 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).

  • 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 travelers should check the fare details before booking.

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

    Only Economy Class is available on flights from San Juan Luis Munoz Marin Intl Airport to Baltimore.

  • 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.

  • 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.

  • 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:

    • Charlotte Douglas (CLT) - 34% of one-stop connections
    • Orlando (MCO) - 34% of one-stop connections
    • Miami (MIA) - 17% of one-stop connections
    • Tampa (TPA) - 5% of one-stop connections

    Charlotte Douglas (CLT) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 31% on the San Juan Luis Munoz Marin Intl Airport to Baltimore route. 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.

  • 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 2 hours 20 minutes.

  • 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 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • What popular places can I visit in Baltimore?

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

  • 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.

  • 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 5:50 pm and lands at 9:58 pm.

    The flight takes about 4h 08m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 7% above the route average of $296. Book 10 weeks before departure for the lowest fares.

  • 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 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 $142, which is 30% below the typical average for this route.

  • How does Southwest’s on-time performance compare to other airlines on San Juan Luis Munoz Marin Intl Airport to Baltimore flights?

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

    • Southwest: 86% on time
    • Frontier: 84% on time
    • Spirit Airlines: 78% on time

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

  • How do delay rates compare for morning and evening flights from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • 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 37m via Atlanta Hartsfield-Jackson (ATL) and 7h 36m via Orlando (MCO).

  • 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

  • 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.

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 can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $275 - about $119 less than Sunday (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).
  • If arriving on time is high on your priority list, Southwest is the strongest pick on this route. 86% of Southwest flights from San Juan Luis Munoz Marin Intl Airport to Baltimore arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 85%. When flights on this route do arrive late, the average delay is 2 hours 20 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • 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

Frontier,Southwest

Frontier,Southwest

Tuesday

Frontier,Southwest

Frontier,Southwest

Wednesday

Frontier,Southwest

Frontier,Southwest

Thursday

Frontier,Southwest

Frontier,Southwest

Friday

Frontier,Southwest

Frontier,Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Frontier,Southwest

Frontier,Southwest

See more direct flights

Direct returns

Baltimore/Washington to San Juan Luis Munoz Marin Intl

Monday

Frontier,Southwest

Frontier,Southwest

Tuesday

Frontier,Southwest

Frontier,Southwest

Wednesday

Frontier,Southwest

Frontier,Southwest

Thursday

Frontier,Southwest

Frontier,Southwest

Friday

Frontier,Southwest

Frontier,Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Frontier,Southwest

Frontier,Southwest

See more direct flights

Everything you need to know for your flight from San Juan to Baltimore

Information on your arrival and departure airports