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$153+ Cheap flights from Islip (ISP) to Oklahoma

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — OKC
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Islip to Oklahoma

Keep the following information in mind while searching for Islip to Oklahoma flight deals. Data was last updated September 11, 2025.

Round-trip from

$153
(CheapOair)

One-way from

$153
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$433
From Islip Long Island to Oklahoma
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One-way flight from Islip Long Island to Oklahoma
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Highest demand for flights based on searches. 5% potential increase in price ($26 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 September 2025
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Find flight deals from Islip to Oklahoma

Cheapest flights from Islip to Oklahoma
Explore the most affordable flight options available from Islip to Oklahoma. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:37 pmISP - DFW
1 stop14h 38mFrontier
Mon 11/32:50 pmDFW - ISP
1 stop25h 52mFrontier
Deal found 9/11$153
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:54 amISP - DFW
1 stop10h 47mFrontier
Tue 11/188:59 pmDFW - ISP
1 stop12h 38mFrontier
Deal found 9/10$155
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2811:25 amISP - DFW
1 stop21h 24mFrontier
Thu 10/28:00 amDFW - ISP
1 stop24h 04mFrontier
Deal found 9/11$165
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:35 amISP - DFW
1 stop23h 29mFrontier
Sun 10/58:18 pmDFW - ISP
1 stop13h 22mFrontier
Deal found 9/10$176
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:27 pmISP - DFW
1 stop11h 30mFrontier
Wed 11/58:59 pmDFW - ISP
1 stop19h 43mFrontier
Deal found 9/11$177
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:40 amISP - DFW
1 stop21h 09mFrontier
Sun 9/288:18 pmDFW - ISP
1 stop13h 22mFrontier
Deal found 9/10$181
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:27 pmISP - DFW
1 stop17h 47mFrontier
Tue 11/118:59 pmDFW - ISP
1 stop12h 38mFrontier
Deal found 9/10$186
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:37 pmISP - DFW
1 stop12h 48mFrontier
Thu 10/309:10 pmDFW - ISP
1 stop12h 27mFrontier
Deal found 9/10$191
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/269:47 pmISP - DFW
1 stop12h 38mFrontier
Sun 11/29:10 pmDFW - ISP
1 stop12h 27mFrontier
Deal found 9/10$193
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:40 amISP - DFW
1 stop8h 33mFrontier
Mon 9/298:18 pmDFW - ISP
1 stop13h 22mFrontier
Deal found 9/9$196
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:49 amISP - DFW
1 stop10h 12mFrontier
Thu 10/239:19 pmDFW - ISP
1 stop12h 18mFrontier
Deal found 9/10$198
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1611:25 amISP - DFW
1 stop23h 39mFrontier
Sun 9/218:18 pmDFW - ISP
1 stop13h 22mFrontier
Deal found 9/8$199

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Oklahoma 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 September 11, 2025.
Use the filters below to find and compare flights from Islip to Oklahoma that are best for you.

Fly from

Islip

Fly to

Oklahoma

Route

Depart

Return

Price

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 10/30

6:37 pm-8:15 am

1 stop14h 38m

Dallas/Fort Worth

Mon 11/3

9:10 pm-5:42 pm

1 stop19h 32m

$153

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Fri 10/31

4:58 pm-11:14 am

1 stop19h 16m

Dallas/Fort Worth

Sun 11/2

9:10 pm-10:37 am

1 stop12h 27m

$153

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Mon 11/10

9:54 am-7:41 pm

1 stop10h 47m

Dallas/Fort Worth

Tue 11/18

8:59 pm-10:37 am

1 stop12h 38m

$155

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sun 9/28

11:25 am-7:49 am

1 stop21h 24m

Dallas/Fort Worth

Thu 10/2

8:00 am-9:04 am

1 stop24h 04m

$165

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Wed 10/1

11:35 am-10:04 am

1 stop23h 29m

Dallas/Fort Worth

Fri 10/3

8:54 am-10:55 am

1 stop25h 01m

$176

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Wed 10/1

11:35 am-10:04 am

1 stop23h 29m

Dallas/Fort Worth

Sun 10/5

8:18 pm-10:40 am

1 stop13h 22m

$176

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Wed 10/1

11:35 am-10:04 am

1 stop23h 29m

Dallas/Fort Worth

Thu 10/23

9:19 pm-10:37 am

1 stop12h 18m

$176

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 9/25

11:40 am-7:49 am

1 stop21h 09m

Dallas/Fort Worth

Sun 9/28

8:18 pm-10:40 am

1 stop13h 22m

$181

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Mon 10/20

9:49 am-7:01 pm

1 stop10h 12m

Dallas/Fort Worth

Thu 10/30

9:10 pm-10:37 am

1 stop12h 27m

$193

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sun 10/26

9:47 pm-9:25 am

1 stop12h 38m

Dallas/Fort Worth

Sun 11/2

9:10 pm-10:37 am

1 stop12h 27m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
1
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Best time to book a flight from Islip to Oklahoma

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

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

Currently, August is the cheapest month in which you can book a flight from Islip to Oklahoma (average of $334). Flying from Islip to Oklahoma 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. 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 Oklahoma?

    If you book a flight to Oklahoma from Islip, you will be flying from Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

  • How long is the flight from Islip to Oklahoma?

    There are many flights that can get you from Islip to Oklahoma in 14h 38m. Fly via Frontier to get the fastest option. Airlines will cover a distance of 1425 mi.

  • What are the most popular routes from Islip to Oklahoma?

    The most popular route from Islip to Oklahoma is Islip Long Island - Dallas/Fort Worth. You may also consider Islip Long Island - Lawton-Fort Sill or Islip Long Island - Oklahoma City Will Rogers World.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Islip to Oklahoma (average of $334). Flying from Islip to Oklahoma 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

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