$672 Cheap Flights from Montgomery (MGM) to Islip (ISP)

View $672 flight on Mon, Nov 24, 2025Opens in a new window

Popular airlines from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP)

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Cheap Flights from Montgomery to Islip (MGM-ISP)

Prices were available within the past 7 days and start at $672 for one-way flights and $895 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 18 - Tue, Dec 2
MGM
Montgomery
ISP
Islip
$895 Roundtrip, found 6 days ago
$895
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Nov 18 from Montgomery to Islip, returning Tue, Dec 2, priced at $895 found 6 days ago
Delta
Thu, Nov 20 - Tue, Dec 2
MGM
Montgomery
ISP
Islip
$976 Roundtrip, found 6 days ago
$976
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Nov 20 from Montgomery to Islip, returning Tue, Dec 2, priced at $976 found 6 days ago
Delta
Sat, Nov 22 - Tue, Dec 2
MGM
Montgomery
ISP
Islip
$1,116 Roundtrip, found 6 days ago
$1,116
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Nov 22 from Montgomery to Islip, returning Tue, Dec 2, priced at $1,116 found 6 days ago

Frequently asked questions

How much does a flight from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP) cost?
Snag a cheap one-way flight from $672 or cheap return flight from $895 from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP)?
November is the most affordable month to fly from MGM to ISP. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP)?
To find the cheapest airline flying from MGM to ISP, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP)?
You'll need to catch a flight with a layover if you're traveling from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from MGM to ISP?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP)?
To touch down at MacArthur Airport (ISP) without delays, opt for a flight that leaves from Montgomery Regional Airport (MGM) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP) last-minute?
Holding off until right before your break to book your flight from MGM to ISP generally means paying more. Although you may find some last-minute offers, they're not always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book a MGM to ISP flight and hotel package?
Compared with arranging hotels and flights separately, booking a MGM to ISP flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the stress out of travel planning. Just pick your flights and select from our wide range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP)?
You can usually cancel or reschedule your MGM to ISP flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Montgomery Regional
Destination airport
MacArthur
Roundtrip price
$895
Distance
940 mi

Book with confidence

Montgomery to Islip Flights

The cheapest times to fly from Montgomery to Islip

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Montgomery to Islip are during the month of November. You can find some of the cheapest flights from Montgomery to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Montgomery to Islip

Sunday is one of the best days to book for cheap flights from Montgomery to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Montgomery to Islip

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Montgomery to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $672 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Montgomery to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Montgomery to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Montgomery to Islip Flights

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*Available to One Key members.