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Islip

$90+ Cheap flights from Baltimore to Islip (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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ISP
out 11 — out 181
sáb 10/11
sáb 10/18
1 adult, Economy
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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 setembro 11, 2025.

Round-trip from

$201
(Frontier)

One-way from

$90
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$376
From Baltimore/Washington to Islip Long Island
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One-way flight from Baltimore/Washington to Islip Long Island
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 setembro 11, 2025.

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.
sex 10/38:21 amBWI - ISP
1 stop8h 06mFrontier
dom 10/59:49 amISP - BWI
1 stop10h 16mFrontier
Deal found 9/10$201
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.
sex 10/314:20 pmBWI - ISP
2 stops18h 17mFrontier
dom 11/29:27 pmISP - BWI
1 stop11h 07mFrontier
Deal found 9/10$229
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.
qui 9/258:52 pmBWI - ISP
1 stop13h 48mMultiple Airlines
seg 9/295:05 pmISP - BWI
1 stop26h 42mMultiple Airlines
Deal found 9/10$241
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.
sex 11/149:11 pmBWI - ISP
1 stop13h 26mMultiple Airlines
dom 11/169:27 pmISP - BWI
1 stop11h 23mMultiple Airlines
Deal found 9/10$256
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.
qui 9/259:37 pmBWI - ISP
1 stop13h 03mFrontier
sáb 9/275:05 pmISP - BWI
1 stop16h 18mFrontier
Deal found 9/10$260
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.
sex 9/268:52 pmBWI - ISP
1 stop14h 03mMultiple Airlines
ter 9/3011:25 amISP - BWI
1 stop28h 07mMultiple Airlines
Deal found 9/11$267
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.
qui 9/258:52 pmBWI - ISP
1 stop13h 48mMultiple Airlines
sáb 9/275:05 pmISP - BWI
2 stops17h 55mMultiple Airlines
Deal found 9/10$270
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.
sex 11/144:30 pmBWI - ISP
2 stops18h 07mFrontier
dom 11/169:27 pmISP - BWI
1 stop11h 07mFrontier
Deal found 9/10$272

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 setembro 11, 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

sex 10/3

8:21 am-4:27 pm

1 stop8h 06m

Islip Long Island

dom 10/5

9:49 am-8:05 pm

1 stop10h 16m

$201

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

qui 9/25

8:52 pm-10:40 am

1 stop13h 48m

Islip Long Island

seg 9/29

5:05 pm-7:47 pm

1 stop26h 42m

$241

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

sex 11/14

9:11 pm-10:37 am

1 stop13h 26m

Islip Long Island

dom 11/16

9:27 pm-8:50 am

1 stop11h 23m

$256

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

qui 9/25

9:37 pm-10:40 am

1 stop13h 03m

Islip Long Island

sáb 9/27

5:05 pm-9:23 am

1 stop16h 18m

$260

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

sex 10/31

4:20 pm-10:37 am

2 stops18h 17m

Islip Long Island

dom 11/2

9:27 pm-3:30 pm

2 stops18h 03m

$262

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

sáb 10/11

11:00 am-12:10 pm

Nonstop1h 10m

Islip Long Island

seg 10/13

5:30 am-6:45 am

Nonstop1h 15m

$267

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

sex 9/26

8:52 pm-10:55 am

1 stop14h 03m

Islip Long Island

ter 9/30

11:25 am-3:32 pm

1 stop28h 07m

$267

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

qui 9/25

8:52 pm-10:40 am

1 stop13h 48m

Islip Long Island

sáb 9/27

5:05 pm-11:00 am

2 stops17h 55m

$270

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

sex 11/14

4:30 pm-10:37 am

2 stops18h 07m

Islip Long Island

dom 11/16

9:27 pm-8:34 am

1 stop11h 07m

$272

BaltimoreIslip

BWI - ISP

BWIISP

Baltimore/Washington

sex 11/7

9:11 pm-10:37 am

1 stop13h 26m

Islip Long Island

dom 11/9

9:27 pm-5:03 pm

2 stops19h 36m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
2

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?

Currently, January is the cheapest month in which you can book a flight from Baltimore to Islip (average of $108). Flying from Baltimore to Islip in November is currently the most expensive (average of $213). 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 setembro 11, 2025.

When flying from Baltimore to Islip, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 7% 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 setembro 11, 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
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

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

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

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 are 2 flights from Baltimore/Washington to Islip per day from 1 airline.

  • How popular is this Baltimore to Islip flight route?

    This flight path from Baltimore/Washington to Islip Long Island was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Baltimore to Islip?

    For as low as $201, Frontier can have you in Islip from Baltimore in 8h 06m. Baltimore and Islip are separated by a distance of 219 mi.

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

    Our cheapest airline available from Baltimore to Islip is Southwest. Our recent data shows that you can find tickets from as low as $233 on this airline. This flight start at 38% lower than the current average price 3 months from now.

  • What are the cheapest flights from Baltimore to Islip?

    Looking for the cheapest flight from Baltimore to Islip? While on average our users pay $376, our data indicates the cheapest price to be $108. The most popular route (Baltimore/Washington - Islip Long Island), is priced around $229.

  • 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?

    Currently, January is the cheapest month in which you can book a flight from Baltimore to Islip (average of $108). Flying from Baltimore to Islip in November is currently the most expensive (average of $213). 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

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Alternative routes for Baltimore to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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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 setembro 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$233Average$362FlexibilityNo cancel feeOn-time63%

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