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Cheap flights from Islip, NY (ISP) to Oslo

ISP — OSL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Islip to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Oslo (OS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Popular in

December

Cheapest in

May

Average price

$668
Highest demand for flights based on searches. 6% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Best time to book a flight from Islip to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Oslo

What is the cheapest month to book a flight from Islip, New York to Oslo?

Currently, November is the cheapest month in which you can book a flight from Islip, New York to Oslo (average of $567). Flying from Islip, New York to Oslo in June is currently the most expensive (average of $1,010). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Islip to Oslo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to Oslo?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Oslo. 0 airlines have flights from Long Island to Oslo on a regular basis. Booking flights from Islip Long Island to Oslo should not be difficult; the airport handles an average of 0 outbound flights to Oslo per day.

  • Can I find deals for flights from Islip to Oslo that include hotel bookings?

    Yes. In addition to deals on Islip to Oslo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Oslo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Oslo.

  • Can I find deals for business class flights from Islip to Oslo?

    Yes. Cheapflights offers flight deals from Islip to Oslo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Oslo?

    Currently, November is the cheapest month in which you can book a flight from Islip, New York to Oslo (average of $567). Flying from Islip, New York to Oslo in June is currently the most expensive (average of $1,010). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Islip to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
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