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Cheap flights from Islip, New York to Washington, D.C. from $68

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 1/13. 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

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Multiple Airlines Logo
2:01 pm - 11:47 pm
ISP
-
BWI
9h 46m2 stops
Multiple Airlines Logo
6:15 pm - 8:40 am
BWI
-
ISP
14h 25m1 stop
$273Multiple Airlines
Fri, Jan 23 - Sat, Jan 24
Southwest Logo
12:40 pm - 2:05 pm
ISP
-
BWI
1h 25mnonstop
Southwest Logo
2:15 pm - 3:25 pm
BWI
-
ISP
1h 10mnonstop
$339Southwest
Fri, Jan 23 - Sat, Jan 24
Southwest Logo
5:55 pm - 7:15 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:40 pm - 11:50 pm
BWI
-
ISP
1h 10mnonstop
$379Southwest
Fri, Apr 3 - Sun, Apr 5
Multiple Airlines Logo
5:27 pm - 7:22 am
ISP
-
BWI
13h 55m1 stop
Multiple Airlines Logo
9:09 pm - 1:45 pm
BWI
-
ISP
16h 36m2 stops
$394Multiple Airlines
Wed, Dec 31 - Sun, Jan 4
Multiple Airlines Logo
5:27 pm - 7:22 am
ISP
-
BWI
13h 55m1 stop
Multiple Airlines Logo
9:09 pm - 1:09 pm
BWI
-
ISP
16h 00m1 stop
$405Multiple Airlines
Wed, Dec 31 - Sun, Jan 4
Southwest Logo
5:40 am - 7:00 am
ISP
-
BWI
1h 20mnonstop
Southwest Logo
3:45 pm - 4:55 pm
BWI
-
ISP
1h 10mnonstop
$415Southwest
Fri, Jan 2 - Mon, Jan 5
Multiple Airlines Logo
8:35 pm - 7:22 am
ISP
-
BWI
10h 47m1 stop
Multiple Airlines Logo
4:44 pm - 7:08 pm
BWI
-
ISP
26h 24m1 stop
$417Multiple Airlines
Fri, Jan 2 - Fri, Jan 9
Multiple Airlines Logo
12:35 pm - 10:51 am
ISP
-
BWI
22h 16m2 stops
Multiple Airlines Logo
6:53 pm - 2:39 pm
BWI
-
ISP
19h 46m1 stop
$432Multiple Airlines
Sat, Feb 14 - Sun, Feb 22
Multiple Airlines Logo
12:20 pm - 8:29 am
ISP
-
BWI
20h 09m1 stop
Multiple Airlines Logo
10:00 pm - 1:09 pm
BWI
-
ISP
15h 09m1 stop
$433Multiple Airlines
Tue, Dec 30 - Sat, Jan 3
Frontier Logo
8:35 pm - 7:22 am
ISP
-
BWI
10h 47m1 stop
Frontier Logo
5:36 pm - 10:17 pm
BWI
-
ISP
28h 41m2 stops
$446Frontier
Sun, Dec 28 - Tue, Dec 30

Frontier flights from Islip, New York to Baltimore

Our best Frontier deals on Islip, New York to Baltimore flight tickets
Frontier
Dec 21
ISP8:35 pmIslip Long Island
10h 47m
1 stop
BWI7:22 amBaltimore/Washington
Dec 24
BWI8:18 pmBaltimore/Washington
15h 07m
2 stops
ISP11:25 amIslip Long Island
$396
Find similar
Frontier
Dec 20
ISP6:40 pmIslip Long Island
12h 38m
1 stop
BWI7:18 amBaltimore/Washington
Dec 21
BWI5:36 pmBaltimore/Washington
26h 04m
2 stops
ISP7:40 pmIslip Long Island
$408
Find similar
Frontier
Dec 28
ISP8:35 pmIslip Long Island
10h 47m
1 stop
BWI7:22 amBaltimore/Washington
Dec 30
BWI5:36 pmBaltimore/Washington
28h 41m
2 stops
ISP10:17 pmIslip Long Island
$446
Find similar

Southwest flights from Islip, New York to Baltimore

Our best Southwest deals on Islip, New York to Baltimore flight tickets
Southwest
Jan 23
ISP12:40 pmIslip Long Island
1h 25m
BWI2:05 pmBaltimore/Washington
Jan 24
BWI2:15 pmBaltimore/Washington
1h 10m
ISP3:25 pmIslip Long Island
$339
Find similar
Southwest
Apr 3
ISP5:55 pmIslip Long Island
1h 20m
BWI7:15 pmBaltimore/Washington
Apr 5
BWI10:40 pmBaltimore/Washington
1h 10m
ISP11:50 pmIslip Long Island
$379
Find similar
Southwest
Jan 2
ISP5:40 amIslip Long Island
1h 20m
BWI7:00 amBaltimore/Washington
Jan 5
BWI3:45 pmBaltimore/Washington
1h 10m
ISP4:55 pmIslip Long Island
$415
Find similar

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 December 16, 2025.
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

Fri 1/23

2:01 pm-11:47 pm

2 stops9h 46m

Baltimore/Washington

Sat 1/24

6:15 pm-8:40 am

1 stop14h 25m

$273

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 1/23

12:40 pm-2:05 pm

Nonstop1h 25m

Baltimore/Washington

Sat 1/24

2:15 pm-3:25 pm

Nonstop1h 10m

$339

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 4/3

5:55 pm-7:15 pm

Nonstop1h 20m

Baltimore/Washington

Sun 4/5

10:40 pm-11:50 pm

Nonstop1h 10m

$379

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 12/31

5:27 pm-7:22 am

1 stop13h 55m

Baltimore/Washington

Sun 1/4

9:09 pm-1:45 pm

2 stops16h 36m

$394

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 12/31

5:27 pm-7:22 am

1 stop13h 55m

Baltimore/Washington

Sun 1/4

9:09 pm-1:09 pm

1 stop16h 00m

$405

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 1/2

5:40 am-7:00 am

Nonstop1h 20m

Baltimore/Washington

Mon 1/5

3:45 pm-4:55 pm

Nonstop1h 10m

$415

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 1/2

8:35 pm-7:22 am

1 stop10h 47m

Baltimore/Washington

Fri 1/9

4:44 pm-7:08 pm

1 stop26h 24m

$417

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sat 2/14

12:35 pm-10:51 am

2 stops22h 16m

Baltimore/Washington

Sun 2/22

6:53 pm-2:39 pm

1 stop19h 46m

$432

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 12/30

12:20 pm-8:29 am

1 stop20h 09m

Baltimore/Washington

Sat 1/3

10:00 pm-1:09 pm

1 stop15h 09m

$433

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sun 12/28

8:35 pm-7:22 am

1 stop10h 47m

Baltimore/Washington

Tue 12/30

5:36 pm-10:17 pm

2 stops28h 41m

$446

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 April, then May is your next best option. Flight prices from Islip, New York to Baltimore during May 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 16% 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

$179

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 $179. 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?

  • 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 $245Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

  • Southwest Flights From Islip, New York to Baltimore

    Southwest operates around 9 flights from Islip, New York to Baltimore every week. The average price of these flights found in the last 72 hours has been $349, but momondo users have found Southwest deals from Islip, New York to Baltimore from as low as $245 round-trip. Southwest has been scored 7.9/10 in 4,250 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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