$403 Cheap Flights from Montgomery (MGM) to Islip (ISP)

View $403 flight on Tue, Jul 15, 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 $403 for one-way flights and $809 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Nov 2 - Fri, Nov 7
MGM
Montgomery
ISP
Islip
$809 Roundtrip, found 5 days ago
$809
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Nov 2 from Montgomery to Islip, returning Fri, Nov 7, priced at $809 found 5 days ago
American Airlines
Thu, Oct 30 - Fri, Oct 31
MGM
Montgomery
ISP
Islip
$855 Roundtrip, found 5 days ago
$855
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Oct 30 from Montgomery to Islip, returning Fri, Oct 31, priced at $855 found 5 days ago
American Airlines
Fri, Oct 31 - Sat, Nov 1
MGM
Montgomery
ISP
Islip
$914 Roundtrip, found 5 days ago
$914
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Montgomery to Islip, returning Sat, Nov 1, priced at $914 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
MGM
Montgomery
ISP
Islip
$936 Roundtrip, found 5 days ago
$936
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Montgomery to Islip, returning Sun, Nov 2, priced at $936 found 5 days ago
Delta
Thu, Oct 30 - Sat, Nov 1
MGM
Montgomery
ISP
Islip
$954 Roundtrip, found 5 days ago
$954
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Oct 30 from Montgomery to Islip, returning Sat, Nov 1, priced at $954 found 5 days ago
American Airlines
Fri, Oct 31 - Thu, Nov 6
MGM
Montgomery
ISP
Islip
$971 Roundtrip, found 5 days ago
$971
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Montgomery to Islip, returning Thu, Nov 6, priced at $971 found 5 days ago
Delta
Thu, Oct 30 - Thu, Nov 6
MGM
Montgomery
ISP
Islip
$984 Roundtrip, found 5 days ago
$984
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Oct 30 from Montgomery to Islip, returning Thu, Nov 6, priced at $984 found 5 days ago
Delta
Tue, Oct 28 - Wed, Oct 29
MGM
Montgomery
ISP
Islip
$986 Roundtrip, found 5 days ago
$986
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Oct 28 from Montgomery to Islip, returning Wed, Oct 29, priced at $986 found 5 days ago
American Airlines
Fri, Oct 31 - Sat, Nov 8
MGM
Montgomery
ISP
Islip
$990 Roundtrip, found 5 days ago
$990
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Montgomery to Islip, returning Sat, Nov 8, priced at $990 found 5 days ago
Delta
Sun, Nov 2 - Thu, Nov 6
MGM
Montgomery
ISP
Islip
$1,016 Roundtrip, found 5 days ago
$1,016
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Nov 2 from Montgomery to Islip, returning Thu, Nov 6, priced at $1,016 found 5 days ago
Flights from Montgomery (MGM) to Islip (ISP)
Origin airport
Montgomery Regional
Destination airport
MacArthur
Roundtrip price
$774
Distance
940 mi

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 $403 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.

 

Frequently asked questions

How much does a flight from Montgomery Regional Airport (MGM) to MacArthur Airport (ISP) cost?
Discover the latest flight deals from MGM to ISP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MGM to ISP?
The cheapest flights from MGM to ISP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MGM to ISP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MGM to ISP. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.

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*Available to One Key members.