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Route

Baltimore → San Juan

BWIBaltimoreBaltimore/Washington International Thurgood Marshall Airport
SJUSan JuanLuis Munoz Marin International Airport
Distance
1,569 mi
Estimated flight time
~3h 40m

Same local time in Baltimore and San Juan.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

A couple of times a day

On average around 2 flights a day, observed from October 2025 to September 2026.

2
flights per day
3.5
busiest month · Dec
1
quietest month · Oct
3 hr 33 min
measured flight time
11 / 12
months seen

Through the year

Per day, month by month

  1. 2Jan2026
  2. 2Feb
  3. 2Mar
  4. 2Apr
  5. 2May
  6. 3Jun
  7. 3Jul
  8. 2Aug
  9. 2Sep
  10. 1Oct2025
  11. –Nov
  12. 3.5Dec

In November 2025 we do not see this direction because of limited reception; the opposite direction is seen.

Airlines

Who flies it

Southwest Airlinesall year
Frontier Airlinesall year
Spirit Airlineswinter

Through the day

Departure times

Local time in Baltimore. Most departures between 08:00 and 11:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 1.8Mon
  2. 1.6Tue
  3. 1.3Wed
  4. 1.4Thu
  5. 2.1Fri
  6. 2.1Sat
  7. 1.6Sun

Fleet

Aircraft observed

  1. Boeing 737 MAX 8B38M43%
  2. Boeing 737-800B73821%
  3. Airbus A321neoA21N12%
  4. Airbus A321A3218%
  5. Airbus A320neoA20N5%
All the numbers in a table
MonthPer daySeenAirlines
January 2026267
  • Southwest Airlines35×
  • Frontier Airlines16×
  • Spirit Airlines14×
February 2026259
  • Southwest Airlines41×
  • Spirit Airlines16×
  • Frontier Airlines2×
March 2026267
  • Southwest Airlines42×
  • Spirit Airlines19×
  • Frontier Airlines6×
April 2026264
  • Southwest Airlines36×
  • Spirit Airlines20×
  • Frontier Airlines8×
May 2026256
  • Southwest Airlines43×
  • Frontier Airlines11×
  • Spirit Airlines1×
June 2026372
  • Southwest Airlines55×
  • Frontier Airlines17×
July 2026382
  • Southwest Airlines60×
  • Frontier Airlines21×
August 2026260
  • Southwest Airlines42×
  • Frontier Airlines17×
September 2026247
  • Southwest Airlines37×
  • Frontier Airlines10×
October 202516
  • Southwest Airlines6×
November 2025We do not see this direction because of limited reception; the opposite direction is seen.
December 20253.532
  • Southwest Airlines14×
  • Frontier Airlines10×
  • Spirit Airlines5×

Airlines observed on this route

From observed callsign routes on BWI-SJU - not a booking guarantee.

Frontier Airlines

F9 · FFT

Hub: DEN Denver

91 departure airportsView airline →

Southwest Airlines

WN · SWA

Hub: DEN Denver

117 departure airportsView airline →

Spirit Airlines

NK · NKS

Hub: FLL Fort Lauderdale

61 departure airportsView airline →

About this route

  • International route: Baltimore and San Juan are in different countries.
  • The opposite direction has also been observed as a direct connection.
  • Direct destinations observed from Baltimore: 104.
  • Direct destinations observed from San Juan: 59.

The airports on this route

Baltimore/Washington International Thurgood Marshall Airport

Baltimore, United StatesBWI / KBWI

Major airport · 104 direct destinations · 3 runways · longest runway 10,502 ft

78 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Luis Munoz Marin International Airport

San Juan, Puerto RicoSJU / TJSJ

Major airport · 59 direct destinations · 2 runways · longest runway 10,003 ft

88 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

DCA SJURonald Reagan Washington National AirportWashington is about 30 mi from Baltimore.View route →IAD SJUWashington Dulles International AirportDulles is about 45 mi from Baltimore.View route →ILG SJUWilmington AirportWilmington is about 66 mi from Baltimore.View route →PHL SJUPhiladelphia International AirportPhiladelphia is about 90 mi from Baltimore.View route →

About the route from Baltimore to San Juan

The observed direct connection between Baltimore/Washington International Thurgood Marshall Airport (BWI) and Luis Munoz Marin International Airport (SJU) covers approximately 1,569 mi. The estimated flight time is around 3h 40m. Frontier Airlines, Southwest Airlines and Spirit Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Baltimore from San Juan by air?
The great-circle distance between Baltimore/Washington International Thurgood Marshall Airport and Luis Munoz Marin International Airport is approximately 1,569 mi.
How long is the flight from Baltimore to San Juan?
Based on the distance, the estimated flight time is about 3h 40m. This is an estimate, not a schedule.
Is there a direct connection from Baltimore to San Juan?
Yes, a direct connection between BWI and SJU has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Frontier Airlines, Southwest Airlines and Spirit Airlines.
How often is there a flight from Baltimore to San Juan?
On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 612 observed flights. Mainly Southwest Airlines, Frontier Airlines, Spirit Airlines. That is an observation, not a timetable.
What is the current time difference between Baltimore and San Juan?
Same local time in Baltimore and San Juan.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

Route data updated on October 11, 2026.