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$89+ Cheap flights from Islip, NY (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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BWI
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$186
(Southwest)

One-way from

$89
(Southwest)

Popular in

December

Cheapest in

April

Average price

$229

Good round-trip deal

$327 or less

Good one-way deal

$190 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. 17% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

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.
Sat 9/65:40 amISP - BWI
Nonstop1h 15mSouthwest
Mon 9/89:45 pmBWI - ISP
Nonstop1h 10mSouthwest
Deal found 7/29$186
This lastminute.com 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/611:35 amISP - DCA
1 stop9h 19mJetBlue
Sun 9/72:59 pmDCA - ISP
1 stop24h 24mJetBlue
Deal found 7/27$215
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:05 amISP - DCA
1 stop10h 55mSouthwest
Sun 9/76:55 amDCA - ISP
2 stops10h 05mSouthwest
Deal found 7/27$348
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:05 amISP - PHL
1 stop8h 33mMultiple Airlines
Fri 8/295:45 amPHL - ISP
1 stop12h 53mMultiple Airlines
Deal found 7/28$394
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/92:05 pmISP - PHL
1 stop8h 42mFrontier
Sun 8/105:25 amPHL - ISP
1 stop7h 39mFrontier
Deal found 7/27$434
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/810:44 amISP - BWI
2 stops13h 29mMultiple Airlines
Sun 8/105:35 pmBWI - ISP
2 stops16h 29mMultiple Airlines
Deal found 7/27$598
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.
Sat 9/67:30 amISP - DCA
2 stops7h 52mMultiple Airlines
Mon 9/85:27 pmDCA - ISP
2 stops17h 31mMultiple Airlines
Deal found 7/28$725

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 July 29, 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

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 9/6

5:40 am-6:55 am

Nonstop1h 15m

Baltimore/Washington

Mon 9/8

9:45 pm-10:55 pm

Nonstop1h 10m

$186

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Sat 9/6

11:35 am-8:54 pm

1 stop9h 19m

Washington, D.C. Reagan-National

Sun 9/7

2:59 pm-3:23 pm

1 stop24h 24m

$215

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Sat 9/6

6:05 am-5:00 pm

1 stop10h 55m

Washington, D.C. Reagan-National

Sun 9/7

6:55 am-5:00 pm

2 stops10h 05m

$348

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 8/28

6:05 am-2:38 pm

1 stop8h 33m

Philadelphia

Fri 8/29

5:45 am-6:38 pm

1 stop12h 53m

$394

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 8/9

2:05 pm-10:47 pm

1 stop8h 42m

Philadelphia

Sun 8/10

5:25 am-1:04 pm

1 stop7h 39m

$434

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 8/8

10:44 am-12:13 am

2 stops13h 29m

Baltimore/Washington

Sun 8/10

5:35 pm-10:04 am

2 stops16h 29m

$598

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Sat 9/6

7:30 am-3:22 pm

2 stops7h 52m

Washington, D.C. Reagan-National

Mon 9/8

5:27 pm-10:58 am

2 stops17h 31m

$725

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 10/25

11:55 am-1:10 pm

Nonstop1h 15m

$89

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Wed 8/27

4:00 pm-10:00 pm

1 stop6h 00m

$99

IslipWashington, D.C.

ISP - DCA

ISPDCA

Islip Long Island

Fri 9/12

11:35 am-8:54 pm

1 stop9h 19m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 13 results
1
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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, New York to Maryland?

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Maryland (average of $241). Flying from Islip, New York 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 July 29, 2025.

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

Weekly flight availability from Islip, New York to Maryland

Explore weekly flight availability from Islip to Maryland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from ISP to USMD are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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 July 29, 2025.
Get a feel of what it's like to fly with Southwest, JetBlue, and Frontier 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
4,238 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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.
JetBlue
7.3
Good
2,913 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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 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, New York to Maryland flight route?

    The Islip Long Island to Maryland flight path was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

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

  • What are the cheapest flights from Islip, New York to Maryland?

    Looking at all options, your cheapest flight can be booked for $93. While the most popular route (Islip Long Island - Baltimore/Washington) can be booked for $278 on average our data indicates $354 when flying from Islip, New York 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, New York to Maryland?

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Maryland (average of $241). Flying from Islip, New York 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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Alternative routes for Islip to Maryland

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$273Average$351FlexibilityNo cancel feeOn-time63%

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