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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 55% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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 . 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.
*Available to Expedia members.