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Cheap flights from Johnson City, TN, TN to Islip (ISP)

TYS — ISP
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Johnson City to Islip

Keep the following information in mind while searching for Johnson City to Islip flight deals. Data was last updated September 16, 2025.

Popular in

August

Cheapest in

July

Average price

$449
Highest demand for flights based on searches. 10% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Cheapflights Insights

Everything you need to know about your flight from Johnson City to Islip

What is the cheapest month to book a flight from Johnson City to Islip?

Currently, January is the cheapest month in which you can book a flight from Johnson City to Islip (average of $108). Flying from Johnson City to Islip in November is currently the most expensive (average of $213). 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.

What is the cheapest time of day to fly from J0H to ISP?

Find hourly flight availability from Johnson City to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Johnson City to Islip, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Johnson City to Islip. 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 into for flights to Islip from Johnson City?

    Located just 7.2 mi from the city center, Islip Long Island is the airport most travelers will use when flying to Islip from Johnson City. Booking flights from Johnson City to Long Island (ISP) should be relatively easy as there are 0 daily inbound flights from Johnson City from 1 airline.

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

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

  • How can I find direct flights from Johnson City to Islip?

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

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

    Yes. Cheapflights offers flight deals from Johnson City to Islip 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 Johnson City to Islip?

    Currently, January is the cheapest month in which you can book a flight from Johnson City to Islip (average of $108). Flying from Johnson City to Islip in November is currently the most expensive (average of $213). 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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Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Top airline flying from Johnson City to Islip

Discover the top airline that operate flights from Johnson City to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$282Average$347FlexibilityNo cancel feeOn-time63%

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