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Cheap flights from Islip, New York to Washington, D.C. from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Washington, D.C. departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip, New York to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
4:10 pm - 5:30 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
7:10 pm - 8:25 pm
BWI
-
ISP
1h 15mnonstop
$272Southwest
Wed, May 13 - Thu, May 14
Southwest Logo
4:30 pm - 5:50 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:20 pm - 11:30 pm
BWI
-
ISP
1h 10mnonstop
$286Southwest
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
11:57 am - 7:36 am
ISP
-
BWI
19h 39m
2 stops
Multiple Airlines Logo
9:59 pm - 10:05 am
BWI
-
ISP
12h 06m
1 stop
$310Multiple Airlines
Wed, May 13 - Thu, May 14
Southwest Logo
6:30 am - 7:50 am
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:20 pm - 11:30 pm
BWI
-
ISP
1h 10mnonstop
$311Southwest
Wed, May 20 - Mon, May 25
Southwest Logo
6:00 am - 7:20 am
ISP
-
BWI
1h 20mnonstop
Southwest Logo
2:50 pm - 4:00 pm
BWI
-
ISP
1h 10mnonstop
$319Southwest
Fri, May 1 - Sat, May 2
Southwest Logo
4:30 pm - 5:50 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:40 pm - 11:50 pm
BWI
-
ISP
1h 10mnonstop
$325Southwest
Fri, May 15 - Sun, May 17
Southwest Logo
5:50 pm - 7:10 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
5:15 pm - 6:30 pm
BWI
-
ISP
1h 15mnonstop
$330Southwest
Sat, Apr 4 - Tue, Apr 7
Multiple Airlines Logo
10:03 am - 8:23 am
ISP
-
BWI
22h 20m
1 stop
Multiple Airlines Logo
5:21 pm - 9:08 am
BWI
-
ISP
15h 47m
1 stop
$337Multiple Airlines
Fri, Jun 12 - Mon, Jun 15
Southwest Logo
4:05 pm - 5:25 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
7:10 pm - 8:25 pm
BWI
-
ISP
1h 15mnonstop
$341Southwest
Tue, Apr 7 - Thu, Apr 9
Southwest Logo
5:55 pm - 7:15 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:30 am - 11:40 am
BWI
-
ISP
1h 10mnonstop
$342Southwest
Fri, Apr 3 - Sat, Apr 4

Southwest flights from Islip, New York to Baltimore

Our best Southwest deals on Islip, New York to Baltimore flight tickets
Southwest
May 13
ISP4:10 pmIslip Long Island
1h 20m
BWI5:30 pmBaltimore/Washington
May 14
BWI7:10 pmBaltimore/Washington
1h 15m
ISP8:25 pmIslip Long Island
$272
Southwest
Apr 10
ISP4:30 pmIslip Long Island
1h 20m
BWI5:50 pmBaltimore/Washington
Apr 13
BWI10:20 pmBaltimore/Washington
1h 10m
ISP11:30 pmIslip Long Island
$286
Southwest
May 20
ISP6:30 amIslip Long Island
1h 20m
BWI7:50 amBaltimore/Washington
May 25
BWI10:20 pmBaltimore/Washington
1h 10m
ISP11:30 pmIslip Long Island
$311

Frontier flights from Islip, New York to Baltimore

Our best Frontier deals on Islip, New York to Baltimore flight tickets
Frontier
May 1
ISP4:07 pmIslip Long Island
19h 28m
2 stops
BWI11:35 amBaltimore/Washington
May 3
BWI9:10 pmBaltimore/Washington
12h 03m
1 stop
ISP9:13 amIslip Long Island
$398
Frontier
Jun 22
ISP10:03 amIslip Long Island
28h 31m
1 stop
BWI2:34 pmBaltimore/Washington
Jun 27
BWI3:29 pmBaltimore/Washington
17h 39m
1 stop
ISP9:08 amIslip Long Island
$439
Frontier
May 1
ISP8:31 pmIslip Long Island
17h 35m
1 stop
BWI2:06 pmBaltimore/Washington
May 3
BWI9:10 pmBaltimore/Washington
12h 03m
1 stop
ISP9:13 amIslip Long Island
$444

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York 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, momondo users made 832,500 searches. Data last updated March 16, 2026.
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

Cheapest round-trip

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 5/13

4:10 pm-5:30 pm

Nonstop1h 20m

Baltimore/Washington

Thu 5/14

7:10 pm-8:25 pm

Nonstop1h 15m

$272
Quickest round-trip

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 4/10

4:30 pm-5:50 pm

Nonstop1h 20m

Baltimore/Washington

Mon 4/13

10:20 pm-11:30 pm

Nonstop1h 10m

$286

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 5/13

11:57 am-7:36 am

2 stops19h 39m

Baltimore/Washington

Thu 5/14

9:59 pm-10:05 am

1 stop12h 06m

$310

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 5/20

6:30 am-7:50 am

Nonstop1h 20m

Baltimore/Washington

Mon 5/25

10:20 pm-11:30 pm

Nonstop1h 10m

$311

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 5/1

6:00 am-7:20 am

Nonstop1h 20m

Baltimore/Washington

Sat 5/2

2:50 pm-4:00 pm

Nonstop1h 10m

$319

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 5/15

4:30 pm-5:50 pm

Nonstop1h 20m

Baltimore/Washington

Sun 5/17

10:40 pm-11:50 pm

Nonstop1h 10m

$325

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 4/4

5:50 pm-7:10 pm

Nonstop1h 20m

Baltimore/Washington

Tue 4/7

5:15 pm-6:30 pm

Nonstop1h 15m

$330

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 6/12

10:03 am-8:23 am

1 stop22h 20m

Baltimore/Washington

Mon 6/15

5:21 pm-9:08 am

1 stop15h 47m

$337

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 4/7

4:05 pm-5:25 pm

Nonstop1h 20m

Baltimore/Washington

Thu 4/9

7:10 pm-8:25 pm

Nonstop1h 15m

$341

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 4/3

5:55 pm-7:15 pm

Nonstop1h 20m

Baltimore/Washington

Sat 4/4

10:30 am-11:40 am

Nonstop1h 10m

$342

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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 66% 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

$243

Fastest flight time

1h 15m

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 $243. The best round-trip flight deal from Islip, New York to Baltimore found on momondo in the last 72 hours is $345.
The fastest flight from Islip, New York to Baltimore takes 1h 15m
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 15m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $242Free CancellationRating
8.0
4,318 reviews
Search Southwest flights

  • Southwest Flights From Islip, New York to Baltimore

    Southwest operates around 14 flights from Islip, New York to Baltimore every week. The average price of these flights found in the last 72 hours has been $353, 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 4,318 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.

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