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$209+ Cheap flights from Islip, NY to Oklahoma City (ISP - OKC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — OKC
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Islip to Oklahoma City

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Oklahoma City (OKC). 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 August 18, 2025.

Round-trip from

$341
(Southwest)

One-way from

$209
(Frontier)

Popular in

December

Cheapest in

February

Average price

$453
From Islip Long Island to Oklahoma City Will Rogers World
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One-way flight from Islip Long Island to Oklahoma City Will Rogers World
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Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Islip to Oklahoma City

Cheapest flights from Islip to Oklahoma City
Explore the most affordable flight options available from Islip to Oklahoma City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Southwest deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:05 pmISP - OKC
2 stops9h 05mSouthwest
Tue 9/306:05 amOKC - ISP
2 stops8h 05mSouthwest
Deal found 8/18$341
This Southwest deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/183:05 pmISP - OKC
2 stops9h 05mSouthwest
Mon 9/221:10 pmOKC - ISP
2 stops8h 45mSouthwest
Deal found 8/17$635

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Oklahoma City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Islip to Oklahoma City that are best for you.

Fly from

Islip

Fly to

Oklahoma City

Route

Depart

Return

Price

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

Fri 9/26

3:05 pm-11:10 pm

2 stops9h 05m

Oklahoma City Will Rogers World

Tue 9/30

6:05 am-3:10 pm

2 stops8h 05m

$341

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

Thu 9/18

3:05 pm-11:10 pm

2 stops9h 05m

Oklahoma City Will Rogers World

Mon 9/22

1:10 pm-10:55 pm

2 stops8h 45m

$635

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

Sun 9/14

9:49 am-11:49 pm

2 stops15h 00m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Best time to book a flight from Islip to Oklahoma City

Have a flexible travel schedule? Discover the best time to fly to Oklahoma City 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 Oklahoma City

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Oklahoma City (average of $348). Flying from Islip, New York to Oklahoma City in June is currently the most expensive (average of $401). 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 Oklahoma City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Islip, New York to Oklahoma City?

    A quick flight from Islip, New York to Oklahoma City can take about 9h 05m. Southwest provides one of the quickest options available for as low as $341. Islip, New York and Oklahoma City are separated by a distance of 1378 mi.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Oklahoma City (average of $348). Flying from Islip, New York to Oklahoma City in June is currently the most expensive (average of $401). 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.

See more FAQs

Traveling to a place near Oklahoma City?

Book flights to Oklahoma City if you plan to visit one of these locations
Norman
Yukon
Shawnee
Ada
Moore
Edmond
Midwest City

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Alternative routes for Islip to Oklahoma City

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