$82 Find Cheap Flights from Baltimore to Islip - Compare and Save

Among airlines operating Baltimore to Islip flights:

• Southwest: offers free seat selection

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

Only Southwest operates flights between Baltimore and Islip.

Flights from Baltimore to Islip usually depart from Baltimore/Washington (BWI) and arrive at Islip Long Island (ISP).

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

• Southwest: 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.

Only Economy Class is available on flights from Baltimore to Islip.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $169 round-trip via Orlando (MCO), compared to $415 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Airbus A220-300 variants.

Most connecting flights from Baltimore to Islip pass through Orlando (MCO), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Yes. Being flexible with your travel dates can save you up to 32% on the Baltimore to Islip route. Tuesday is the cheapest departure day at $345 round-trip on average, while Thursday is the most expensive at $501, a difference of $156. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Baltimore to Islip flights, with 25% of flights leaving in that window. Afternoon departures account for 25%, evening flights for 25%, and night flights for 25%.

These are the earliest and latest flight times available from Baltimore to Islip:

• Earliest: departs at 8:25 am and lands at 9:36 am
• Latest: departs at 11:00 pm and lands at 12:11 am.

The flight takes about 1h 11m.

A nonstop flight from Baltimore to Islip takes 1h 11m, covering 219 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $258 to $1,505. That means the highest observed fare was about 6x higher than the lowest one.

One-way fares from Baltimore to Islip are currently lower than usual. Average one-way flight prices are about $113, which is 64% below the typical average for this route.

Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include:
• Budget
• Enterprise Rent-A-Car
• Avis
• National
• Empire Rent A Car

Round-trip flights from Baltimore to Islip range from $339 to $560, with an average of $412 over the past 12 months. Anything below $339 counts as a good deal.