HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$64+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ISP
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/204:25 pmBWI - ISP
1 stop18h 12mFrontier
Sun 11/238:25 pmISP - BWI
1 stop11h 58mFrontier
Deal found 10/26$138
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/278:45 pmBWI - ISP
1 stop13h 52mFrontier
Tue 12/28:29 pmISP - BWI
1 stop13h 52mFrontier
Deal found 10/25$144
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/278:45 pmBWI - ISP
1 stop13h 52mMultiple Airlines
Tue 12/28:29 pmISP - BWI
2 stops26h 50mMultiple Airlines
Deal found 10/25$172
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Fri 12/59:11 pmBWI - ISP
1 stop12h 02mMultiple Airlines
Sun 12/711:40 amISP - BWI
2 stops20h 02mMultiple Airlines
Deal found 10/26$191
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sun 11/234:25 pmBWI - ISP
1 stop15h 37mFrontier
Thu 11/2710:02 amISP - BWI
1 stop9h 48mFrontier
Deal found 10/26$204
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:29 amBWI - ISP
1 stop9h 37mFrontier
Wed 11/124:58 pmISP - BWI
1 stop15h 36mFrontier
Deal found 10/27$222
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:29 amBWI - ISP
1 stop7h 37mMultiple Airlines
Tue 11/116:27 pmISP - BWI
1 stop22h 52mMultiple Airlines
Deal found 10/27$235
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:29 amBWI - ISP
1 stop7h 37mMultiple Airlines
Wed 11/124:58 pmISP - BWI
2 stops22h 49mMultiple Airlines
Deal found 10/27$243
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sun 11/234:25 pmBWI - ISP
1 stop15h 37mMultiple Airlines
Thu 11/2710:02 amISP - BWI
2 stops23h 34mMultiple Airlines
Deal found 10/26$249
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Mon 11/1011:29 amBWI - ISP
1 stop7h 37mMultiple Airlines
Fri 11/144:58 pmISP - BWI
2 stops27h 33mMultiple Airlines
Deal found 10/26$261

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$64
(Trip.com)

Popular in

January

Cheapest in

April

Average price

$470
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. 8% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 28, 2025.
Use the filters below to find and compare flights from Baltimore to Islip that are best for you.

Fly from

Baltimore

Fly to

Islip

Route

Depart

Return

Price

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 11/20

4:25 pm-10:37 am

1 stop18h 12m

Islip Long Island

Sun 11/23

8:25 pm-8:23 am

1 stop11h 58m

$138

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 11/27

8:45 pm-10:37 am

1 stop13h 52m

Islip Long Island

Tue 12/2

8:29 pm-10:21 am

1 stop13h 52m

$144

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 11/27

8:45 pm-10:37 am

1 stop13h 52m

Islip Long Island

Tue 12/2

8:29 pm-11:19 pm

2 stops26h 50m

$172

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Sun 11/23

4:25 pm-8:02 am

1 stop15h 37m

Islip Long Island

Thu 11/27

10:02 am-7:50 pm

1 stop9h 48m

$204

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Fri 12/5

10:40 am-7:34 pm

1 stop8h 54m

Islip Long Island

Sun 12/7

11:15 am-7:42 am

1 stop20h 27m

$217

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Sun 11/23

4:25 pm-8:02 am

1 stop15h 37m

Islip Long Island

Thu 11/27

10:02 am-9:36 am

2 stops23h 34m

$249

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Mon 11/10

11:29 am-7:06 pm

1 stop7h 37m

Islip Long Island

Fri 11/14

4:58 pm-10:45 pm

1 stop29h 47m

$262

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 11/20

5:49 am-6:56 pm

2 stops13h 07m

Islip Long Island

Sun 11/23

8:25 pm-8:23 am

1 stop11h 58m

$291

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Thu 12/4

8:55 pm-10:05 pm

Nonstop1h 10m

Islip Long Island

Sun 12/7

5:50 am-7:10 am

Nonstop1h 20m

$327

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

Fri 12/5

8:55 pm-10:05 pm

Nonstop1h 10m

Islip Long Island

Sun 12/7

5:50 am-7:10 am

Nonstop1h 20m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baltimore-Islip, New York flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 January is currently the most expensive (average of $148). 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 October 28, 2025.

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 morning, which can drop the price by up to 13% versus a flight in the evening.

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 October 28, 2025.
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
4,236 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

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 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 is 1 flight 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, 3 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 18h 12m. Frontier provides one of the quickest options available for as low as $138. Airlines will cover a distance of 219 mi.

  • 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 43% 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 $366, our data indicates the cheapest price to be $127. The most popular route (Baltimore/Washington - Islip Long Island), is priced around $141.

  • 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 January is currently the most expensive (average of $148). 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
Southampton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to John F Kennedy Intl flights
Reagan-National to John F Kennedy Intl flights
Reagan-National to LaGuardia flights
Dulles Intl to LaGuardia flights
Reagan-National to Newark flights
Dulles Intl to Newark flights
Baltimore to LaGuardia flights
Baltimore to Newark flights
Baltimore to John F Kennedy Intl flights
Baltimore to Rochester flights
Dulles Intl to Buffalo flights
Reagan-National to Albany flights
Dulles Intl to Rochester flights
Baltimore to Buffalo flights
Reagan-National to Buffalo flights
Philadelphia to Buffalo flights
Dulles Intl to Albany flights
Reagan-National to Syracuse flights
Reagan-National to Rochester flights
Dulles Intl to Syracuse flights
Baltimore to Syracuse flights
Dulles Intl to Plattsburgh flights
Reagan-National to Saranac Lake flights
Baltimore to Albany flights
Philadelphia to John F Kennedy Intl flights
Philadelphia to Rochester flights
Reagan-National to White Plains flights
Philadelphia to Newark flights
Philadelphia to Syracuse flights
Philadelphia to LaGuardia flights
Philadelphia to Albany flights
Baltimore to White Plains flights
Dulles Intl to White Plains flights
Dulles Intl to Ithaca flights
Reagan-National to Ithaca flights
Reagan-National to Islip flights
Philadelphia to Ithaca flights
Dulles Intl to Stewart flights
Reagan-National to Rutland flights
Dulles Intl to Islip flights
Philadelphia to Stewart flights
Philadelphia to Islip flights
Baltimore to Stewart flights
Dulles Intl to Elmira flights
Baltimore to Ithaca flights
Baltimore to Elmira flights
Dulles Intl to Rutland flights
Philadelphia to Watertown flights
Philadelphia to Rutland flights

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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$244Average$384FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.