Vuelos de Frontier Airlines de Atlanta (ATL) a Islip (ISP) desde $25

It’s always wise to find out about any travel advice reports and quarantine requirements in effect in your destination city. Be sure to visit the Covid-19 Travel Advisor for up-to-date information on booking a flight to MacArthur Airport (ISP).

If you’re flying with Frontier Airlines from Hartsfield–Jackson Atlanta International Airport, you’ll usually catch your flight from terminal N. If you’re heading to ISP from here, you’re most likely to be arriving at the main terminal.

Direct flights are offered by Frontier Airlines, which means you can get from ATL to ISP the easy way. Those unforgettable travel experiences you desire are a convenient flight away.

From the minute your Frontier Airlines plane pushes back from the gate at ATL to the instant it taxis into MacArthur Airport, your trip will take around 3 hours and 18 minutes. With such a quick flight time, it’s a great little spur-of-the-moment vacation.

If you’re traveling from ATL to ISP with Frontier Airlines, you’ll usually be flying aboard the Airbus A320neo.

In each week, there are around 8 Frontier Airlines flights operating between Atlanta Airport and MacArthur Airport.

For more info about changing your flight to MacArthur Airport (ISP), please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.