Cheap American Airlines flights Islip (ISP) to Baltimore (BWI)

Scoring cheap one-way American Airlines flights from ISP to BWI on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

American Airlines flights to Baltimore tend to be cheaper in the quieter months of January and February. Whether you’re after a round-trip or one-way ticket, you could land a better deal then.

To find cheap American Airlines fares from MacArthur Airport (ISP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall cost. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, hit search and select “Nonstop” on Expedia to browse any direct flights from ISP to BWI with American Airlines or another carrier.

Sort your results by “Morning” and “Early Morning” to find the earliest departures from ISP to BWI. Leaving early means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Baltimore Washington Intl. Thurgood Marshall Airport (BWI) is the primary Baltimore hub for American Airlines flights from MacArthur Airport (ISP).

Depending on the ticket type you purchased, a fee generally applies if you modify or cancel your booking more than 24 hours after it has been confirmed. To secure flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when you look for flights. For more details on canceling or changing your reservation, head to “Trips,” select your flight and tick “Manage Booking.”