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$98+ Cheap flights from Islip, NY (ISP) to Oklahoma

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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — OKC
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$206
(Cheapflightsfares)

One-way from

$98
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$427
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 ($24 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

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 July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/92:05 pmISP - DFW
1 stop7h 59mFrontier
Sat 8/1611:22 amDFW - ISP
1 stop7h 20mFrontier
Deal found 7/27$206
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:44 amISP - DFW
2 stops11h 25mMultiple Airlines
Mon 9/17:00 amDFW - ISP
1 stop7h 19mMultiple Airlines
Deal found 7/28$466
This Southwest deal was found by Cheapflights users on 7/29. 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.
Sun 8/35:55 pmISP - OKC
2 stops8h 15mSouthwest
Wed 8/67:20 amOKC - ISP
2 stops12h 45mSouthwest
Deal found 7/29$897
This United deal was found by Cheapflights users on 7/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/12:19 pmISP - OKC
3 stops22h 35mMultiple Airlines
Sun 8/39:40 amOKC - ISP
2 stops24h 18mMultiple Airlines
Deal found 7/28$1,865

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 July 29, 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

Sat 8/9

2:05 pm-9:04 pm

1 stop7h 59m

Dallas/Fort Worth

Sat 8/16

11:22 am-7:42 pm

1 stop7h 20m

$206

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Mon 8/25

10:44 am-9:09 pm

2 stops11h 25m

Dallas/Fort Worth

Mon 9/1

7:00 am-3:19 pm

1 stop7h 19m

$466

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 8/16

2:05 pm-9:04 pm

1 stop7h 59m

$98

IslipOklahoma City

ISP - OKC

ISPOKC

Islip Long Island

Sun 8/24

6:00 am-2:05 pm

2 stops9h 05m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, New York to Oklahoma?

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

Reviews of airlines servicing Oklahoma

Get insights into the airlines that provide service to Oklahoma. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oklahoma. Reviews last updated July 29, 2025.
See what other customers who have flown with Southwest and Frontier from Islip to Oklahoma have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

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

    The most popular route from Islip, New York 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, New York to Oklahoma?

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