Cheap Flights Baltimore – San Juan from CAD 146

Flight FAQs

• Which airlines offer the cheapest flights from Baltimore (BWI) to San Juan (SJU)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as CAD 146 on Cheapest nonstop routes (e.g. BWI to SJU on Fri, May 15), while Frontier Airlines offers Cheapest nonstop round-trips from CAD 165 departing on Tue, May 12 and returning on Sat, May 16.

• Which airlines offer direct flights from Baltimore to San Juan?

  At the moment, you can catch a direct flight from Baltimore to San Juan with the following airlines, including: Spirit Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is the flight from Baltimore (BWI) to San Juan (SJU)?

  It takes about 4 hours to fly from Baltimore (BWI) to San Juan (SJU).

• When is the best time to book flights from Baltimore to San Juan?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Baltimore to San Juan is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Baltimore to San Juan?

  Based on Trip.com data in the past 4 weeks, there is 23 flight per week flying from Baltimore to San Juan. You can check the weekly schedule for popular airlines on this route below: Spirit Airlines: -/-/-/-/T/-/S -- NK880 (06:25)

• How can I find the best deals on flights from Baltimore to San Juan?

  To find best deals on flights from Baltimore to San Juan, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, May 15, with one-way flights priced at just CAD 146.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for San Juan travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Baltimore to San Juan to get the best price?

  The cheapest months to fly from Baltimore to San Juan is August, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Baltimore to San Juan?

  After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Baltimore to San Juan on May 18, 2026 with Frontier Airlines, with prices starting at CAD 83.

• Which airports can I fly through when travelling to San Juan from Baltimore?

  You can land at any one of the following hubs in San Juan, with Baltimore/Washington International Airport to Luis Munoz Marin International Airport (BWI-SJU) is by far the most common option on this route: Fernando Luis Ribas Dominicci Airport (SIG) Luis Munoz Marin International Airport (SJU).

• What is the time difference between Baltimore and San Juan?

  The time difference between San Juan and Baltimore is 1h.

• How can I change or cancel my flight ticket from Baltimore to San Juan?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.