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$89+ Cheap flights from Islip, NY to Baltimore (ISP - BWI)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BWI
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Islip to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Baltimore (BWI). 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 juin 12, 2025.

Round-trip from

$186
(Southwest)

One-way from

$89
(Southwest)

Popular in

November

Cheapest in

September

Average price

$422
From Islip Long Island to Baltimore/Washington
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One-way flight from Islip Long Island to Baltimore/Washington
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Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Islip to Baltimore

Cheapest flights from Islip to Baltimore
Explore the most affordable flight options available from Islip to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 12, 2025.

This Southwest deal was found by Cheapflights users on 6/12. 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.
sam. 10/411:55 amISP - BWI
Nonstop1h 15mSouthwest
lun. 10/63:45 pmBWI - ISP
Nonstop1h 05mSouthwest
Deal found 6/12$186
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/45:05 pmISP - BWI
1 stop28h 43mFrontier
lun. 10/64:32 pmBWI - ISP
1 stop24h 05mFrontier
Deal found 6/12$266
This Mytrip deal was found by Cheapflights users on 6/12. 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.
mer. 7/162:55 pmISP - BWI
1 stop25h 43mMultiple Airlines
sam. 7/194:25 pmBWI - ISP
3 stops26h 34mMultiple Airlines
Deal found 6/12$461

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to Baltimore 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 juin 12, 2025.
Use the filters below to find and compare flights from Islip to Baltimore that are best for you.

Fly from

Islip

Fly to

Baltimore

Route

Depart

Return

Price

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

sam. 10/4

11:55 am-1:10 pm

Nonstop1h 15m

Baltimore/Washington

lun. 10/6

3:45 pm-4:50 pm

Nonstop1h 05m

$186

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

sam. 10/4

5:05 pm-9:48 pm

1 stop28h 43m

Baltimore/Washington

lun. 10/6

4:32 pm-4:37 pm

1 stop24h 05m

$266

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

mer. 7/16

2:55 pm-4:38 pm

1 stop25h 43m

Baltimore/Washington

sam. 7/19

4:25 pm-6:59 pm

3 stops26h 34m

$461

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

mer. 8/20

6:05 am-7:20 am

Nonstop1h 15m

$89

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

ven. 7/11

8:37 pm-9:33 am

1 stop12h 56m

$129

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

lun. 9/8

2:25 pm-12:17 am

2 stops33h 52m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Islip to Baltimore

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

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

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Baltimore (average of $241). Flying from Islip, New York to Baltimore 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 BWI?

Find hourly flight availability from Islip to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juin 12, 2025.

When flying from Islip, New York to Baltimore, 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 10% versus a flight in the morning.

Weekly flight availability from Islip, New York to Baltimore

Explore weekly flight availability from Islip to Baltimore. 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 juin 12, 2025.

The most flights from ISP to BWI 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).

Rainfall in Baltimore by month

Plan your trip to Baltimore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Baltimore ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Baltimore when rainfall is around 2.9 in.

Temperature in Baltimore by month

Plan your trip to Baltimore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Baltimore, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated juin 12, 2025.
See what other customers who have flown with Southwest and Frontier from Islip to Baltimore have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,295 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

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

    To fly from Islip to Baltimore, you need to book a flight from Long Island (ISP) to Baltimore/Washington (BWI). Nonstop flights to Baltimore/Washington from Islip Long Island take 1h 15m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from Long Island to Baltimore/Washington offered by 1 airline.

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

    This flight path from Islip Long Island to Baltimore/Washington was viewed by 6 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Islip, New York to Baltimore round-trip?

    According to our current data, Southwest ($186), and Frontier ($266) offers the cheapest pricing from Islip, New York to Baltimore. Southwest is priced at 52% lower than the current average price of a flight leaving 3 months from now.

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

    Looking at all options, your cheapest flight can be booked for $127. While the most popular route (Islip Long Island - Baltimore/Washington) can be booked for $195 on average our data indicates $306 when flying from Islip, New York to Baltimore.

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

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

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

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

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

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

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

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Islip to Baltimore

Discover the top airline that operate flights from Islip to Baltimore. 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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$269Average$346FlexibilityNo cancel feeOn-time63%

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