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$72+ Cheap flights from Islip (ISP) to Maryland

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BWI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Islip to Maryland

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

Round-trip from

$158
(Frontier)

One-way from

$72
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$192

Good round-trip deal

$323 or less

Good one-way deal

$176 or less
From Islip Long Island to Maryland
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One-way flight from Islip Long Island to Maryland
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Highest demand for flights based on searches. 19% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Islip Long Island to Maryland.
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Price to beat on a one-way flight from Islip Long Island to Maryland.
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Find flight deals from Islip to Maryland

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

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:25 amISP - PHL
1 stop9h 46mFrontier
Tue 10/711:34 amPHL - ISP
1 stop9h 08mFrontier
Deal found 9/8$158
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 9/255:12 pmISP - PHL
1 stop7h 47mFrontier
Mon 9/2910:16 pmPHL - ISP
1 stop12h 24mFrontier
Deal found 9/10$161
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:58 pmISP - PHL
1 stop14h 32mFrontier
Wed 10/159:14 pmPHL - ISP
1 stop23h 28mFrontier
Deal found 9/10$179
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:00 amISP - BWI
Nonstop1h 15mSouthwest
Tue 10/283:00 pmBWI - ISP
Nonstop1h 05mSouthwest
Deal found 9/9$185
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 10/211:40 amISP - BWI
1 stop8h 52mFrontier
Fri 10/38:21 amBWI - ISP
1 stop8h 06mFrontier
Deal found 9/10$195
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:05 amISP - BWI
Nonstop1h 15mSouthwest
Tue 9/3010:45 amBWI - ISP
Nonstop1h 10mSouthwest
Deal found 9/9$196
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/113:10 pmISP - BWI
Nonstop1h 15mSouthwest
Sat 10/118:25 pmBWI - ISP
Nonstop1h 10mSouthwest
Deal found 9/10$216
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 10/99:37 pmISP - BWI
1 stop10h 57mFrontier
Sun 10/1211:31 amBWI - ISP
1 stop9h 21mFrontier
Deal found 9/10$221
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:37 pmISP - BWI
1 stop15h 03mMultiple Airlines
Tue 10/2811:19 amBWI - ISP
1 stop23h 18mMultiple Airlines
Deal found 9/9$234
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:35 amISP - BWI
1 stop21h 48mFrontier
Thu 9/189:37 pmBWI - ISP
1 stop13h 03mFrontier
Deal found 9/11$235
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.
Mon 11/39:54 amISP - BWI
1 stop7h 29mFrontier
Thu 11/64:15 pmBWI - ISP
2 stops16h 39mFrontier
Deal found 9/10$238
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:09 pmISP - PHL
1 stop11h 20mMultiple Airlines
Wed 12/1010:46 amPHL - ISP
1 stop8h 28mMultiple Airlines
Deal found 9/10$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Maryland 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 Maryland that are best for you.

Fly from

Islip

Fly to

Maryland

Route

Depart

Return

Price

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 9/30

11:25 am-9:11 pm

1 stop9h 46m

Philadelphia

Tue 10/7

11:34 am-8:42 pm

1 stop9h 08m

$158

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 9/25

5:12 pm-12:59 am

1 stop7h 47m

Philadelphia

Mon 9/29

10:16 pm-10:40 am

1 stop12h 24m

$161

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 10/21

6:00 am-7:15 am

Nonstop1h 15m

Baltimore/Washington

Tue 10/28

3:00 pm-4:05 pm

Nonstop1h 05m

$185

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 10/2

11:40 am-8:32 pm

1 stop8h 52m

Baltimore/Washington

Fri 10/3

8:21 am-4:27 pm

1 stop8h 06m

$195

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 9/30

6:05 am-7:20 am

Nonstop1h 15m

Baltimore/Washington

Tue 9/30

10:45 am-11:55 am

Nonstop1h 10m

$196

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 10/11

3:10 pm-4:25 pm

Nonstop1h 15m

Baltimore/Washington

Sat 10/11

8:25 pm-9:35 pm

Nonstop1h 10m

$216

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 10/28

6:00 am-7:15 am

Nonstop1h 15m

Baltimore/Washington

Thu 10/30

10:35 pm-11:45 pm

Nonstop1h 10m

$216

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 10/9

9:37 pm-8:34 am

1 stop10h 57m

Baltimore/Washington

Sun 10/12

11:31 am-8:52 pm

1 stop9h 21m

$221

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 10/21

9:37 pm-12:40 pm

1 stop15h 03m

Baltimore/Washington

Tue 10/28

11:19 am-10:37 am

1 stop23h 18m

$234

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 10/28

6:27 pm-12:40 pm

1 stop18h 13m

Baltimore/Washington

Thu 10/30

8:30 pm-10:37 am

1 stop14h 07m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 54 results
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Best time to book a flight from Islip to Maryland

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

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

Currently, August is the cheapest month in which you can book a flight from Islip to Maryland (average of $241). Flying from Islip to Maryland in March is currently the most expensive (average of $290). 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 ISP to MD?

Find hourly flight availability from Islip to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip to Maryland as you normally would.

Reviews of airlines servicing Maryland

Get insights into the airlines that provide service to Maryland. 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 Maryland. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Southwest from Islip to Maryland by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Islip to Maryland. 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 Maryland?

    Located just 7.2 mi from the city center, Islip Long Island (ISP) is the airport most travelers will use when flying to Maryland from Islip.

  • How popular is this Islip to Maryland flight route?

    Flights from Islip Long Island to Maryland have been viewed 11 times in the past calendar month.

  • How long is the flight from Islip to Maryland?

    Frontier, Southwest, and JetBlue can get you from Islip to Maryland in just under 1h 15m. Your travel time can differ by up to 8h 31m. There are 219 mi between Islip and Maryland. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Islip to Maryland one-way?

    $93 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on JetBlue and Frontier, with prices starting from $113 and $158, respectively.

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

    The most popular flight routes from Islip to Maryland are Islip Long Island - Baltimore/Washington, Islip Long Island - Philadelphia and Islip Long Island - Washington, D.C. Reagan-National.

  • What are the cheapest flights from Islip to Maryland?

    Looking at all options, your cheapest flight can be booked for $104. While the most popular route (Islip Long Island - Baltimore/Washington) can be booked for $216 on average, our data indicates $317 when flying from Islip to Maryland.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Islip to Maryland (average of $241). Flying from Islip to Maryland in March is currently the most expensive (average of $290). 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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Top airline flying from Islip to Maryland

Discover the top airline that operate flights from Islip to Maryland. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$273Average$370FlexibilityNo cancel feeOn-time63%

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