£600 Cheap Flights from Islip (ISP) to Baltimore (BWI)

View £600 flight on Fri, 15 May 2026Opens in a new window

Popular airlines from MacArthur Airport (ISP) to Baltimore Washington International Airport (BWI)

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Cheap Flights from Islip (ISP) to Baltimore (BWI)

Prices were available within the past 7 days and start at £600 for one-way flights and £1,773 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Fri, 1 May - Fri, 8 May
ISP
Islip
BWI
Baltimore
£1,773 Return, found 1 hour ago
£1,773
Return
found 1 hour ago
Select Cape Air flight, departing Fri, 1 May from Islip to Baltimore, returning Fri, 8 May, priced at £1,773 found 1 hour ago

Frequently asked questions

How much is a flight from ISP to BWI Marshall?
The lowest price advertised for a round-trip journey between MacArthur Airport (ISP) and BWI is £1,773. But you better get moving. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from MacArthur Airport to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Each airline has its own terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from ISP to BWI Marshall that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for MacArthur Airport (ISP) to BWI Marshall flights, you'll see a "no change fees" filter for you to select.
How far is the flight from MacArthur Airport to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The distance from ISP (ISP) to BWI Marshall (BWI) is just 350 kilometres. You'll be disembarking the plane and collecting your baggage from the carousel in next to no time.
Which airlines fly direct from MacArthur Airport (ISP) to BWI Marshall?
Check out Southwest Airlines (WN) if you want to fly straight from MacArthur Airport to BWI Airport. This popular carrier operates 117 flights monthly, so you're sure to find one that fits your travel schedule.
Are ISP to BWI flight tickets cheaper when they're purchased at the last minute?
Flight prices from MacArthur Airport to BWI are available up to a year before departure on Expedia. And although you may nab a great last-minute deal, it's not something you should count on. Also, booking your flights in advance means you'll have more choices — and you can avoid getting stuck in the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

Frequently asked questions

Which airlines fly direct from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Enter ISP to BWI and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
To find a cheap flight from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The best airline to fly with from Islip, NY (ISP-MacArthur) (ISP) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) (BWI) will differ from traveller to traveller. If you like to fly early, WN offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. 9K offers the most daily flights from Islip, NY (ISP-MacArthur) (ISP) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) (BWI), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
There are approximately 4 nonstop flights per day from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall). For even more choice, look at flights that include layovers, as there are around 3 connecting flights per day. Some common connection points include Logan Intl. (BOS), Orlando Intl. (MCO), and Palm Beach Intl. (PBI).
What is the earliest flight from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The earliest flight from Islip, NY (ISP-MacArthur) (ISP) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) (BWI) typically departs at approximately 5:30 AM local time, operated by Southwest Airlines. This is a seasonal service active in November. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
You'll typically find the most flights from Islip, NY (ISP-MacArthur) (ISP) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) (BWI) on a Wednesday, with around 6 flights available. This gives you a good selection of options for your travel plans. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The most popular departure times for flights from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) are in the afternoon, from 12pm to 3pm. About 31% of passengers prefer this time. Many major carriers, including Southwest Airlines, Spirit Airlines and Delta Air Lines, offer flights during this window. This timing works well because it allows for a relaxed morning before your flight, getting you to your destination in the afternoon.
How long does it take to fly from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Direct flights from ISP to BWI usually take about 1 hour 20 minutes, traveling roughly 219 miles. If you opt for a connecting flight, expect to add around 8 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Select the "Business class" and "First class" filters when looking for ISP to BWI flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight with Expedia?
It's easy to earn miles on a Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Baltimore from MacArthur (ISP)?
If you're planning to travel to Baltimore from MacArthur (ISP), you can fly directly into Baltimore Washington Intl. Thurgood Marshall (BWI) Some flights may connect through major hubs like Logan Intl. (BOS) before reaching Baltimore. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) at the last minute?
Typically, booking a last minute flight from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight and hotel package?
Securing a Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
If you booked your Islip, NY (ISP-MacArthur) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
MacArthur
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Return price
£1,772
Distance
350 km
Average flight time
1 hour 19 mins

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