What is the cheapest airline that flies from Islip Long Island to Baltimore/Washington?

Frontier and Southwest are the most popular carriers operating from Islip Long Island to Baltimore/Washington

What airlines fly to Baltimore?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Baltimore from Islip, New York according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 5 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

How many flights depart from Islip, New York to Baltimore on average per week?

As of January 2026, there are 18 flights per week flying from Islip, New York to Baltimore. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How many flights depart from Islip, New York to Baltimore on average per day?

2 flights are operational daily from Islip, New York to Baltimore as of January 2026. The most popular departure time for this route is 12:00PM, with 66% of flights per day taking off in the afternoon.

When did momondo last update prices for flights from Islip Long Island Airport to Baltimore/Washington Airport?

Prices for flights from Islip Long Island Airport to Baltimore/Washington Airport refresh daily.

How many operators does momondo search for flights from Islip Long Island Airport to Baltimore/Washington Airport?

There is 1 operator available for flights from Islip Long Island Airport to Baltimore/Washington Airport as of January 2026.

How old do you have to be to fly from Islip Long Island Airport to Baltimore/Washington Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Baltimore/Washington Airport.

What documentation or ID do you need to fly to Baltimore/Washington Airport?

The travel and health documents required for your trip to Baltimore/Washington Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$82 Cheap Flights from Islip to Baltimore in 2026

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Find the cheapest flights from Islip, New York to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:07 pm - 12:20 am

ISP

BWI

7h 13m

1 stop

6:50 pm - 1:31 pm

BWI

ISP

18h 41m

2 stops

$221Multiple Airlines

Thu, Feb 19 - Sun, Feb 22

3:34 pm - 10:53 pm

ISP

BWI

7h 19m

1 stop

6:50 pm - 1:31 pm

BWI

ISP

18h 41m

2 stops

$237Multiple Airlines

Fri, Feb 20 - Sun, Feb 22

6:00 am - 7:30 am

ISP

BWI

1h 30mnonstop

10:20 pm - 11:30 pm

BWI

ISP

1h 10mnonstop

$257Southwest

Wed, Feb 25 - Thu, Apr 16

11:50 am - 11:47 pm

ISP

BWI

11h 57m

2 stops

4:44 pm - 6:48 pm

BWI

ISP

26h 04m

1 stop

$262Multiple Airlines

Sat, Jan 31 - Wed, Feb 4

9:00 am - 10:20 am

ISP

BWI

1h 20mnonstop

2:50 pm - 4:00 pm

BWI

ISP

1h 10mnonstop

$272Southwest

Wed, Apr 22 - Sat, Apr 25

7:43 pm - 5:10 pm

ISP

BWI

21h 27m

1 stop

12:40 pm - 11:59 am

BWI

ISP

23h 19m

2 stops

$276Multiple Airlines

Mon, Feb 2 - Mon, Feb 9

5:35 pm - 6:55 pm

ISP

BWI

1h 20mnonstop

10:40 pm - 11:50 pm

BWI

ISP

1h 10mnonstop

$286Southwest

Sun, Mar 1 - Sun, Mar 8

4:05 pm - 5:30 pm

ISP

BWI

1h 25mnonstop

10:45 am - 11:55 am

BWI

ISP

1h 10mnonstop

$297Southwest

Thu, Feb 5 - Mon, Feb 9

3:35 pm - 4:55 pm

ISP

BWI

1h 20mnonstop

10:45 am - 11:55 am

BWI

ISP

1h 10mnonstop

$299Southwest

Sat, Jan 31 - Wed, Feb 4

7:43 pm - 11:17 am

ISP

BWI

15h 34m

1 stop

12:40 pm - 11:59 am

BWI

ISP

23h 19m

2 stops

$303Multiple Airlines

Thu, Feb 5 - Mon, Feb 9

Southwest flights from Islip, New York to Baltimore

Our best Southwest deals on Islip, New York to Baltimore flight tickets

Southwest

Feb 11

ISP12:40 pmIslip Long Island

1h 25m

BWI2:05 pmBaltimore/Washington

Feb 11

BWI3:10 pmBaltimore/Washington

1h 05m

ISP4:15 pmIslip Long Island

$233

Southwest

Feb 25

ISP6:00 amIslip Long Island

1h 30m

BWI7:30 amBaltimore/Washington

Apr 16

BWI10:20 pmBaltimore/Washington

1h 10m

ISP11:30 pmIslip Long Island

$257

Southwest

Apr 22

ISP9:00 amIslip Long Island

1h 20m

BWI10:20 amBaltimore/Washington

Apr 25

BWI2:50 pmBaltimore/Washington

1h 10m

ISP4:00 pmIslip Long Island

$272

Frontier flights from Islip, New York to Baltimore

Our best Frontier deals on Islip, New York to Baltimore flight tickets

Frontier

Mar 1

ISP5:30 amIslip Long Island

35h 43m

2 stops

BWI5:13 pmBaltimore/Washington

Mar 8

BWI8:28 pmBaltimore/Washington

13h 20m

1 stop

ISP9:48 amIslip Long Island

$319

Frontier

Feb 19

ISP5:07 pmIslip Long Island

7h 13m

1 stop

BWI12:20 amBaltimore/Washington

Feb 22

BWI6:53 pmBaltimore/Washington

12h 45m

1 stop

ISP7:38 amIslip Long Island

$354

Frontier

Jan 29

ISP7:43 pmIslip Long Island

26h 58m

1 stop

BWI10:41 pmBaltimore/Washington

Feb 2

BWI6:15 amBaltimore/Washington

12h 33m

1 stop

ISP6:48 pmIslip Long Island

$498

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 2/19

5:07 pm-12:20 am

1 stop7h 13m

Baltimore/Washington

Sun 2/22

6:50 pm-1:31 pm

2 stops18h 41m

$221

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 2/20

3:34 pm-10:53 pm

1 stop7h 19m

Baltimore/Washington

Sun 2/22

6:50 pm-1:31 pm

2 stops18h 41m

$237

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 2/25

6:00 am-7:30 am

Nonstop1h 30m

Baltimore/Washington

Thu 4/16

10:20 pm-11:30 pm

Nonstop1h 10m

$257

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 1/31

11:50 am-11:47 pm

2 stops11h 57m

Baltimore/Washington

Wed 2/4

4:44 pm-6:48 pm

1 stop26h 04m

$262

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 4/22

9:00 am-10:20 am

Nonstop1h 20m

Baltimore/Washington

Sat 4/25

2:50 pm-4:00 pm

Nonstop1h 10m

$272

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Mon 2/2

7:43 pm-5:10 pm

1 stop21h 27m

Baltimore/Washington

Mon 2/9

12:40 pm-11:59 am

2 stops23h 19m

$276

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sun 3/1

5:35 pm-6:55 pm

Nonstop1h 20m

Baltimore/Washington

Sun 3/8

10:40 pm-11:50 pm

Nonstop1h 10m

$286

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 2/5

4:05 pm-5:30 pm

Nonstop1h 25m

Baltimore/Washington

Mon 2/9

10:45 am-11:55 am

Nonstop1h 10m

$297

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 1/31

3:35 pm-4:55 pm

Nonstop1h 20m

Baltimore/Washington

Wed 2/4

10:45 am-11:55 am

Nonstop1h 10m

$299

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 2/5

7:43 pm-11:17 am

1 stop15h 34m

Baltimore/Washington

Mon 2/9

12:40 pm-11:59 am

2 stops23h 19m

$303

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to Baltimore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in January, then April is your next best option. Flight prices from Islip, New York to Baltimore during April average around $297.

What is the cheapest time of day to depart on your flight to Baltimore?

Flying to Baltimore from Islip, New York in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $413 when looking at flights departing in the afternoon. Flights at noon are often more expensive with an average ticket price of $544.

What is the cheapest Islip Long Island to Baltimore/Washington flight route?

Fly from Islip Long Island to Baltimore/Washington for the best Islip Long Island - Baltimore/Washington flight prices

What cabin class options are available on Islip Long Island to Baltimore/Washington flights?

There is only 1 cabin class available to choose from on Islip Long Island to Baltimore/Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Islip, New York to Baltimore flights?

You could potentially save up to 30% on your flight if you consider stops on a Islip, New York to Baltimore flight.

When to book flights from Islip, New York to Baltimore

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Baltimore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Islip, New York to Baltimore (ISP to BWI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Baltimore

Best Price Found	$217
Fastest flight time	1h 20m
Direct flights	Every day
Airports in Baltimore	1 airport

The best one-way flight to Baltimore from Islip, New York in the past 72 hours is $217. The best round-trip flight deal from Islip, New York to Baltimore found on momondo in the last 72 hours is $310.

The fastest flight from Islip, New York to Baltimore takes 1h 20m

Direct flights go from Islip, New York to Baltimore every day.

There is 1 airport in Baltimore. From Islip, New York there are direct flights to Baltimore/Washington (BWI).

Search flight deals

How far is Islip Long Island to Baltimore/Washington by plane?
The distance between Islip Long Island and Baltimore/Washington is about 205.5 mi. 1h 20m is a normal flight duration for this route.
When did momondo last update prices for flights from Islip Long Island Airport to Baltimore/Washington Airport?
Prices for flights from Islip Long Island Airport to Baltimore/Washington Airport refresh daily.
How many operators does momondo search for flights from Islip Long Island Airport to Baltimore/Washington Airport?
There is 1 operator available for flights from Islip Long Island Airport to Baltimore/Washington Airport as of January 2026.
How old do you have to be to fly from Islip Long Island Airport to Baltimore/Washington Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Baltimore/Washington Airport.
What documentation or ID do you need to fly to Baltimore/Washington Airport?
The travel and health documents required for your trip to Baltimore/Washington Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Islip, New York to Baltimore?
momondo data reveals that the most frequently booked plane model on the route from Islip, New York to Baltimore is Airbus A320-100/200, representing 17.53% of all bookings. The subsequent popular models are Airbus A321neo at 12.35%, Boeing 737-800 Passenger/BBJ2 (winglets) at 8.40%, and Airbus A320neo at 6.67%.
What is the most popular airline from Islip, New York to Baltimore?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Islip, New York to Baltimore is Southwest (100% of total bookings).

Best airlines flying from Islip, New York to Baltimore

Compare and see reviews for airlines that fly from Islip, New York to Baltimore with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $242	Free Cancellation	Rating 8.0 4,258 reviews		Search Southwest flights

Southwest Flights From Islip, New York to Baltimore
Southwest operates around 18 flights from Islip, New York to Baltimore every week. The average price of these flights found in the last 72 hours has been $354, but momondo users have found Southwest deals from Islip, New York to Baltimore from as low as $242 round-trip. Southwest has been scored 8.0/10 in 4,258 reviews.

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Baltimore?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Baltimore from Islip.

Can I find flights from Islip to Baltimore with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Islip to Baltimore flights to just show those with flexible booking policies.

How can momondo help me find flights from Islip to Baltimore?

Once all potential Islip to Baltimore flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Islip to Baltimore right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Islip to Baltimore flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Baltimore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Islip, New York to Washington, D.C. from $82

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Big names and deals

Filter for what you want

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Find the cheapest flights from Islip, New York to Washington, D.C.

Cheap round-trip flights

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Southwest flights from Islip, New York to Baltimore

Our best Southwest deals on Islip, New York to Baltimore flight tickets

Frontier flights from Islip, New York to Baltimore

Our best Frontier deals on Islip, New York to Baltimore flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Baltimore that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Islip, New York to Baltimore

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in January, then April is your next best option. Flight prices from Islip, New York to Baltimore during April average around $297.

What is the cheapest time of day to depart on your flight to Baltimore?

Flying to Baltimore from Islip, New York in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $413 when looking at flights departing in the afternoon. Flights at noon are often more expensive with an average ticket price of $544.

What is the cheapest Islip Long Island to Baltimore/Washington flight route?

Fly from Islip Long Island to Baltimore/Washington for the best Islip Long Island - Baltimore/Washington flight prices

What cabin class options are available on Islip Long Island to Baltimore/Washington flights?

There is only 1 cabin class available to choose from on Islip Long Island to Baltimore/Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Islip, New York to Baltimore flights?

You could potentially save up to 30% on your flight if you consider stops on a Islip, New York to Baltimore flight.

What is the cheapest airline that flies from Islip Long Island to Baltimore/Washington?

Frontier and Southwest are the most popular carriers operating from Islip Long Island to Baltimore/Washington

What airlines fly to Baltimore?

How many flights depart from Islip, New York to Baltimore on average per day?

2 flights are operational daily from Islip, New York to Baltimore as of January 2026. The most popular departure time for this route is 12:00PM, with 66% of flights per day taking off in the afternoon.

How many flights depart from Islip, New York to Baltimore on average per week?

As of January 2026, there are 18 flights per week flying from Islip, New York to Baltimore. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

When to book flights from Islip, New York to Baltimore

Cheap Islip, New York to Baltimore (ISP to BWI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Baltimore

Best Price Found

Fastest flight time

Direct flights

Airports in Baltimore

How far is Islip Long Island to Baltimore/Washington by plane?

When did momondo last update prices for flights from Islip Long Island Airport to Baltimore/Washington Airport?

How many operators does momondo search for flights from Islip Long Island Airport to Baltimore/Washington Airport?

How old do you have to be to fly from Islip Long Island Airport to Baltimore/Washington Airport?

What documentation or ID do you need to fly to Baltimore/Washington Airport?

What is the most popular plane model from Islip, New York to Baltimore?

What is the most popular airline from Islip, New York to Baltimore?

Best airlines flying from Islip, New York to Baltimore

Compare and see reviews for airlines that fly from Islip, New York to Baltimore with momondo

Southwest Flights From Islip, New York to Baltimore

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Baltimore?

Can I find flights from Islip to Baltimore with flexible booking policies on momondo?

How can momondo help me find flights from Islip to Baltimore?

I’m not ready to book a flight from Islip to Baltimore right now. Can momondo alert me if prices change?

An easier way to manage your Baltimore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maryland