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Air Canada Express.

To save on the cost of your flight from Islip, New York to Portland, Maine, book at least 33 days before your planned departure. Booking around this time can save you about 84% on the cost of this flight compared to booking a flight leaving this week.

We have found prices fromif you need a flight within two weeks.

Amtrak rail connection bus.

Which airlines provide the cheapest flights from Islip to Portland? The best deals for a one-way ticket found by KAYAK users over the last 3 days were on American Airlines (81) and Frontier (). The cheapest round-trip tickets were found on American Airlines () and Frontier ().

Compare & reserve one-way or return flights from Islip to Portland fromonly to get the best flight deals and promotions for your ISP to PWM trip! Find flight deals from Islip to Portland save up to 55% today!

Compare & reserve one-way or return flights from Islip to Portland at bookflighttickets.buzz Browse direct and non-stop flights to Portland.

Book Cheap Flights from Islip to Portland: Search and compare airfares on Tripadvisor to find the best flights for your trip to Portland. Choose the best airline for you by reading reviews and viewing hundreds of ticket rates for flights going to and from your destination. Apr 18, Return flights from Islip ISP to Portland PWM with American Airlines If you’re planning a round trip, booking return flights with American Airlines is usually the most cost-effective option. With airfares ranging fromto, it’s easy to find a flight that suits your budget.

Islip to Portland by train The train journey time between Islip and Portland is around 3 days 12h and covers a distance of around miles. The fastest train normally takes 3 days 1h. Services are operated by Long Island Rail Road and Amtrak. Typically two trains run weekly, although weekend and holiday schedules can vary so check in advance. Flights to Portland, Portland International Airport (PDX), Oregon from Islip (ISP), Long Island MacArthur Airport, New York can be cheap.

Enter details once for flight from and to desired city or airport.

Airport was clean.

Compare air fares and find low price flights to Portland, Portland International Airport (PDX) From Islip (ISP), New York. Flights to Portland, Portland International Jetport (PWM), Maine from Islip (ISP), Long Island MacArthur Airport, New York can be cheap. Enter details once for flight from and to desired city or airport. Compare air fares and find low price flights to Portland, Portland International Jetport (PWM) From Islip (ISP), New York.