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Islip

$80+ Cheap flights from Baltimore to Islip, NY (BWI - ISP)

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ISP
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Baltimore to Islip

Cheapest flights from Baltimore to Islip
Explore the most affordable flight options available from Baltimore to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This Southwest deal was found by Cheapflights users on 3/9. 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.
Wed 4/812:40 pm
BWI
-
ISP
Nonstop1h 10m
Southwest
Wed 4/156:30 am
ISP
-
BWI
Nonstop1h 20m
Southwest
Deal found 3/9$263
This Southwest deal was found by Cheapflights users on 3/9. 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.
Mon 4/64:30 pm
BWI
-
ISP
Nonstop1h 10m
Southwest
Wed 4/84:10 pm
ISP
-
BWI
Nonstop1h 20m
Southwest
Deal found 3/9$272
This Southwest deal was found by Cheapflights users on 3/9. 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.
Wed 4/225:15 pm
BWI
-
ISP
Nonstop1h 15m
Southwest
Fri 4/248:35 am
ISP
-
BWI
Nonstop1h 20m
Southwest
Deal found 3/9$277
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Thu 5/1410:00 pm
BWI
-
ISP
1 stop11h 13m
Frontier
Sun 5/174:07 pm
ISP
-
BWI
2 stops16h 05m
Frontier
Deal found 3/9$279
This Southwest deal was found by Cheapflights users on 3/7. 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 4/410:25 pm
BWI
-
ISP
Nonstop1h 10m
Southwest
Sat 4/114:40 pm
ISP
-
BWI
Nonstop1h 20m
Southwest
Deal found 3/7$281
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/253:19 pm
BWI
-
ISP
2 stops24h 54m
Multiple Airlines
Mon 3/301:22 pm
ISP
-
BWI
1 stop30h 22m
Multiple Airlines
Deal found 3/8$309
This Southwest deal was found by Cheapflights users on 3/9. 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.
Sat 4/1810:25 am
BWI
-
ISP
Nonstop1h 10m
Southwest
Sun 4/1911:50 am
ISP
-
BWI
Nonstop1h 20m
Southwest
Deal found 3/9$310
This Southwest deal was found by Cheapflights users on 3/7. 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.
Fri 5/83:20 pm
BWI
-
ISP
Nonstop1h 10m
Southwest
Sun 5/106:05 am
ISP
-
BWI
Nonstop1h 20m
Southwest
Deal found 3/7$315
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Wed 4/225:35 pm
BWI
-
ISP
1 stop15h 58m
Multiple Airlines
Fri 4/244:07 pm
ISP
-
BWI
2 stops16h 36m
Multiple Airlines
Deal found 3/9$316
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/710:09 am
BWI
-
ISP
1 stop6h 49m
Multiple Airlines
Wed 4/88:00 am
ISP
-
BWI
1 stop25h 10m
Multiple Airlines
Deal found 3/6$332
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Sat 4/45:42 pm
BWI
-
ISP
1 stop17h 31m
Frontier
Sat 4/116:29 pm
ISP
-
BWI
1 stop14h 41m
Frontier
Deal found 3/7$337

Find flight deals from Baltimore to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$263
(Southwest)

One-way from

$80
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$429
Provider with most accurate pricing for Baltimore/Washington-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Islip Long Island flights.
Search Deals
From Baltimore/Washington to Islip Long Island
Search Deals
One-way flight from Baltimore/Washington to Islip Long Island
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Islip 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 March 11, 2026.
Use the filters below to find and compare flights from Baltimore to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Wed 4/8

12:40 pm-1:50 pm

Nonstop1h 10m

Islip Long Island

Wed 4/15

6:30 am-7:50 am

Nonstop1h 20m

$263

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Wed 4/22

5:15 pm-6:30 pm

Nonstop1h 15m

Islip Long Island

Fri 4/24

8:35 am-9:55 am

Nonstop1h 20m

$277

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Tue 4/7

12:40 pm-1:50 pm

Nonstop1h 10m

Islip Long Island

Wed 4/8

6:30 am-7:50 am

Nonstop1h 20m

$281

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Sat 4/4

10:25 pm-11:35 pm

Nonstop1h 10m

Islip Long Island

Sat 4/11

4:40 pm-6:00 pm

Nonstop1h 20m

$281

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Sat 4/18

10:25 am-11:35 am

Nonstop1h 10m

Islip Long Island

Sun 4/19

11:50 am-1:10 pm

Nonstop1h 20m

$310

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Fri 5/8

3:20 pm-4:30 pm

Nonstop1h 10m

Islip Long Island

Sun 5/10

6:05 am-7:25 am

Nonstop1h 20m

$315

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Wed 4/22

5:35 pm-9:33 am

1 stop15h 58m

Islip Long Island

Fri 4/24

4:07 pm-8:43 am

2 stops16h 36m

$316

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Wed 3/25

4:28 pm-4:13 pm

1 stop23h 45m

Islip Long Island

Mon 3/30

1:22 pm-7:44 pm

1 stop30h 22m

$325

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 4/9

7:10 pm-8:25 pm

Nonstop1h 15m

Islip Long Island

Thu 4/16

8:35 am-9:55 am

Nonstop1h 20m

$332

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Sat 4/4

5:42 pm-11:13 am

1 stop17h 31m

Islip Long Island

Sat 4/11

6:29 pm-9:10 am

1 stop14h 41m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Baltimore to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Islip in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Baltimore 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 Baltimore to Islip

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

Currently, April is the cheapest month in which you can book a flight from Baltimore to Islip, New York (average of $54). Flying from Baltimore to Islip, New York in August is currently the most expensive (average of $117). 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 BWI to ISP?

Find hourly flight availability from Baltimore to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 11, 2026.

When flying from Baltimore to Islip, New York, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 9% versus a flight at noon.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated March 11, 2026.
See what other customers who have flown with Southwest from Baltimore to Islip have to say. 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
4,317 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,317 reviews
Southwest
8.0
Very good
4,317 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Baltimore to Islip?

    If you book a flight from Baltimore to Islip, you will be flying from Baltimore/Washington to Long Island. Flights to Islip Long Island (ISP) from Baltimore/Washington (BWI) take 1h 10m for a nonstop flight. There are 2 flights from Baltimore/Washington to Islip per day from 1 airline.

  • How popular is this Baltimore to Islip, New York flight route?

    Within the past month, 1 users have taken a look at flights from Baltimore/Washington to Islip Long Island.

  • How long is the flight from Baltimore to Islip, New York?

    A quick flight from Baltimore to Islip, New York can take about 1h 10m. Southwest provides one of the quickest options available for as low as $263. Airlines will cover a distance of 219 mi. Most flights are nonstop.

  • What is the cheapest airline to fly from Baltimore to Islip, New York round-trip?

    Our cheapest airline available from Baltimore to Islip, New York is Southwest. Our recent data shows that you can find tickets from as low as $231 on this airline. Southwest is currently priced 33% below the average price you’ll pay for this route.

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

    Looking for the cheapest flight from Baltimore to Islip, New York? While on average our users pay $321, our data indicates the cheapest price to be $140. The most popular route (Baltimore/Washington - Islip Long Island), is priced around $272.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore to Islip 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 Baltimore to Islip, New York?

    Currently, April is the cheapest month in which you can book a flight from Baltimore to Islip, New York (average of $54). Flying from Baltimore to Islip, New York in August is currently the most expensive (average of $117). 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

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

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Alternative routes for Baltimore to Islip

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Top airline flying from Baltimore to Islip

Discover the top airline that operate flights from Baltimore to Islip. 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$231Average$370FlexibilityNo cancel feeOn-time63%

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