Cheap Flights from Islip (ISP) to Oneonta (ONH)

Popular airlines from MacArthur Airport (ISP) to Oneonta, NY (ONH-Oneonta Municipal)

  • 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 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Flights from Islip (ISP) to Oneonta (ONH)
Origin airport
MacArthur
Destination airport
Oneonta Municipal
Distance
157 mi

Islip to Oneonta Flights

The cheapest times to fly from Islip to Oneonta

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 Islip to Oneonta are during the month of . You can find some of the cheapest flights from Islip to Oneonta with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Islip to Oneonta

Sunday is one of the best days to book for cheap flights from Islip to Oneonta: 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 Islip to Oneonta

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 Islip to Oneonta in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Islip to Oneonta 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 Islip to Oneonta 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

Is it cheaper to buy a plane ticket from ISP to ONH last minute?
Booking your trip from MacArthur Airport to ONH at the last minute could save you money if you’re lucky to find a real bargain. However, fares don’t typically get cheaper as the departure date nears. If you procrastinate, flights could also be booked out or the best seats taken (because who wants the middle seat?). If you don’t want to risk it, book well ahead of your departure date. Note that some of the biggest deals can be found up to 12 months in advance. If your favorite airline hasn’t released its airfares yet, check back regularly as offers are updated on Expedia constantly.
What airports do you fly into for Oneonta from Islip?
From Islip, you can travel to Oneonta via Oneonta, NY (ONH-Oneonta Municipal), Greater Binghamton Airport (BGM) and Sidney, NY (SXY-Sidney Municipal). It’s wise to check which hub works best for you before you make a decision. If you settle on Oneonta, NY (ONH-Oneonta Municipal), it’s approximately 5 mi north of the city center. Use the money you save when booking your fare with Expedia to experience the city’s awesome sights, such as Cooperstown All Star Village Fields and State University of New York-Oneonta.
Can I change the date of my flight from ISP to ONH?
You can make changes to your MacArthur Airport (ISP) to ONH journey via the Expedia Trips portal. Before you amend times or dates, check the fare rules in your itinerary to see what you’re able to do and if fees apply. Some carriers charge a change fee per person, on top of any difference in ticket prices. But if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also visit our Customer Service portal for further information and to chat with our Virtual Agent.

Explore a world of travel with Expedia

*Available to One Key members.