In terms of precipitation, rainfall in Oklahoma City ranges from 1.2 - 5.1 inches per month. May is typically the wettest month, when rainfall can reach 5.1 in. January is typically the driest time to visit Oklahoma City when rainfall is around 1.2 in.

If weather is an important factor for your trip to Oklahoma City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

How far in advance should I book a flight from Islip, New York to Oklahoma City?

Travelers have found it’s best to book a flight 50 days in advance to save up to 46% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 50 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to Oklahoma City 1-2 weeks in advance for as low as $415, or $415 for flights within the next 24 hours.

What is the cheapest month to fly from Islip, New York to Oklahoma City?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Oklahoma City. Flights to Oklahoma City from Islip, New York in February are about $425 on average during February, but can be found for as low as $276.

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

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

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.

$199+ Flights from Islip, NY to Oklahoma City

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Cheap flight deals from Islip to Oklahoma City

Popular in	December
Cheapest in	February
Average price	$427

Highest demand for flights based on searches. 5% potential increase in price ($23 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Islip to Oklahoma City

One-way flights from Islip to Oklahoma City
Search for one-way flight options from Islip to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated juillet 3, 2025.

mer. 7/238:37 pmISP - OKC

2 stops15h 46mFrontier

Deal found 7/3

$199

ven. 7/1810:00 amISP - OKC

2 stops9h 40mSouthwest

Deal found 7/2

$359

ven. 7/1811:53 amISP - OKC

3 stops35h 10mMultiple Airlines

Deal found 7/2

$772

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to Oklahoma City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

mer. 7/23

8:37 pm-11:23 am

2 stops15h 46m

$199

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

ven. 7/18

10:00 am-6:40 pm

2 stops9h 40m

$359

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

ven. 7/18

11:53 am-10:03 pm

3 stops35h 10m

$772

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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 $403). 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.

Reviews of airlines servicing Oklahoma City

Peruse reviews from past customers who have flown with Southwest and Frontier from Islip to Oklahoma City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,266 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Frontier

5.9

Fair

3,286 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

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 $403). 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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$199+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Oklahoma City with Cheapflights

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Cheap flight deals from Islip to Oklahoma City

Popular in

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Find flight deals from Islip to Oklahoma City

One-way flights from Islip to Oklahoma CitySearch for one-way flight options from Islip to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated juillet 3, 2025.

Search for one-way flight options from Islip to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated juillet 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to Oklahoma City that are best for you.

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.

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?

Reviews of airlines servicing Oklahoma City

Peruse reviews from past customers who have flown with Southwest and Frontier from Islip to Oklahoma City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

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

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

Traveling to a place near Islip?

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Alternative routes for Islip to Oklahoma City

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One-way flights from Islip to Oklahoma City
Search for one-way flight options from Islip to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated juillet 3, 2025.