Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
High demand for flights, 4% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for round-trip flights in August 2021
From Johannesburg OR Tambo to Islip Long Island
Cheapest prices for Islip flights by month
The cheapest ticket to Islip found for each month in 2021 based on historical flight searches by Cheapflights users.
Currently, October is the cheapest month in which you can book a flight to Islip. Flying to Islip in December will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
When is the best time to fly to Islip?
Average New York flight ticket prices and weather conditions for 2021 and 2022 by month.
JNB - NYC
R10 726 - R16 445
6 - 30 °C
65 - 130 mm
Whilst there are several times of the year to choose from, October is seen as the time to fly to Islip, however, it is possible to get good deals throughout the year. July sees the temperatures in Islip peak to their warmest. August tends, on average, to see the most amount of rainfall.
When is the best time to book a flight to Islip?
The price you pay for your flight to Islip may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Which day is cheapest to fly to Islip?
The cheapest day to fly to Islip is usually Tuesday. At the moment, Saturday is the most expensive.
What time of day is cheapest to fly to Islip?
To get the best value, try booking a flight in the morning when visiting Islip. Generally the prices will increase for flights in the afternoon as these tend to have higher demand.
Alternative, similarly priced destinations
See alternative destinations where airfare is generally forecast to be close to Islip flight prices.