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Cheap flights from Islip, New York to Washington, D.C. from $57

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 2/2. 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.
Frontier Logo
8:24 pm - 10:03 pm
ISP
-
BWI
25h 39m1 stop
Frontier Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$147Frontier
Mon, Jan 5 - Tue, Jan 13
Frontier Logo
8:24 pm - 10:03 pm
ISP
-
BWI
25h 39m1 stop
Frontier Logo
1:02 pm - 7:51 pm
BWI
-
ISP
6h 49m1 stop
$165Frontier
Mon, Jan 5 - Mon, Jan 12
Frontier Logo
8:40 pm - 10:21 am
ISP
-
BWI
13h 41m1 stop
Frontier Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$172Frontier
Thu, Jan 8 - Wed, Jan 14
Multiple Airlines Logo
11:50 am - 11:49 pm
ISP
-
BWI
11h 59m2 stops
Multiple Airlines Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$173Multiple Airlines
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
11:55 am - 7:21 am
ISP
-
BWI
19h 26m2 stops
Multiple Airlines Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$176Multiple Airlines
Sun, Jan 11 - Wed, Jan 14
Multiple Airlines Logo
12:00 pm - 9:35 am
ISP
-
BWI
21h 35m2 stops
Multiple Airlines Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$177Multiple Airlines
Tue, Jan 6 - Wed, Jan 14
Multiple Airlines Logo
12:00 pm - 10:27 am
ISP
-
BWI
46h 27m2 stops
Multiple Airlines Logo
11:30 am - 10:46 pm
BWI
-
ISP
11h 16m1 stop
$179Multiple Airlines
Tue, Jan 6 - Tue, Jan 13
Frontier Logo
6:25 am - 12:40 am
ISP
-
BWI
18h 15m2 stops
Frontier Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$186Frontier
Mon, Jan 5 - Wed, Jan 14
Multiple Airlines Logo
12:55 pm - 8:29 am
ISP
-
BWI
19h 34m1 stop
Multiple Airlines Logo
8:00 am - 10:46 pm
BWI
-
ISP
14h 46m1 stop
$188Multiple Airlines
Tue, Jan 6 - Tue, Jan 13
Frontier Logo
8:40 pm - 10:21 am
ISP
-
BWI
13h 41m1 stop
Frontier Logo
1:02 pm - 7:51 pm
BWI
-
ISP
6h 49m1 stop
$190Frontier
Thu, Jan 8 - Mon, Jan 12

Frontier flights from Islip, New York to Baltimore

Our best Frontier deals on Islip, New York to Baltimore flight tickets
Frontier
Jan 5
ISP8:24 pmIslip Long Island
25h 39m
1 stop
BWI10:03 pmBaltimore/Washington
Jan 13
BWI8:00 amBaltimore/Washington
14h 46m
1 stop
ISP10:46 pmIslip Long Island
$147
Find similar
Frontier
Jan 5
ISP8:24 pmIslip Long Island
25h 39m
1 stop
BWI10:03 pmBaltimore/Washington
Jan 12
BWI1:02 pmBaltimore/Washington
6h 49m
1 stop
ISP7:51 pmIslip Long Island
$165
Find similar
Frontier
Jan 8
ISP8:40 pmIslip Long Island
13h 41m
1 stop
BWI10:21 amBaltimore/Washington
Jan 14
BWI8:00 amBaltimore/Washington
14h 46m
1 stop
ISP10:46 pmIslip Long Island
$172
Find similar

Southwest flights from Islip, New York to Baltimore

Our best Southwest deals on Islip, New York to Baltimore flight tickets
Southwest
Jan 10
ISP3:35 pmIslip Long Island
1h 20m
BWI4:55 pmBaltimore/Washington
Jan 11
BWI3:30 pmBaltimore/Washington
1h 05m
ISP4:35 pmIslip Long Island
$310
Find similar
Southwest
Jan 9
ISP3:45 pmIslip Long Island
1h 20m
BWI5:05 pmBaltimore/Washington
Jan 11
BWI10:45 amBaltimore/Washington
1h 10m
ISP11:55 amIslip Long Island
$339
Find similar
Southwest
Dec 20
ISP5:55 pmIslip Long Island
1h 20m
BWI7:15 pmBaltimore/Washington
Dec 21
BWI10:45 pmBaltimore/Washington
1h 10m
ISP11:55 pmIslip Long Island
$561
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 8, 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

Mon 1/5

8:24 pm-10:03 pm

1 stop25h 39m

Baltimore/Washington

Tue 1/13

8:00 am-10:46 pm

1 stop14h 46m

$147

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Mon 1/5

8:24 pm-10:03 pm

1 stop25h 39m

Baltimore/Washington

Mon 1/12

1:02 pm-7:51 pm

1 stop6h 49m

$165

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 1/8

8:40 pm-10:21 am

1 stop13h 41m

Baltimore/Washington

Wed 1/14

8:00 am-10:46 pm

1 stop14h 46m

$172

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 1/7

11:50 am-11:49 pm

2 stops11h 59m

Baltimore/Washington

Wed 1/14

8:00 am-10:46 pm

1 stop14h 46m

$173

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sun 1/11

11:55 am-7:21 am

2 stops19h 26m

Baltimore/Washington

Wed 1/14

8:00 am-10:46 pm

1 stop14h 46m

$176

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 1/6

12:00 pm-9:35 am

2 stops21h 35m

Baltimore/Washington

Wed 1/14

8:00 am-10:46 pm

1 stop14h 46m

$177

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 1/6

12:00 pm-10:27 am

2 stops46h 27m

Baltimore/Washington

Tue 1/13

11:30 am-10:46 pm

1 stop11h 16m

$179

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Mon 1/5

6:25 am-12:40 am

2 stops18h 15m

Baltimore/Washington

Wed 1/14

8:00 am-10:46 pm

1 stop14h 46m

$186

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 1/6

12:55 pm-8:29 am

1 stop19h 34m

Baltimore/Washington

Tue 1/13

8:00 am-10:46 pm

1 stop14h 46m

$188

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 1/8

8:40 pm-10:21 am

1 stop13h 41m

Baltimore/Washington

Mon 1/12

1:02 pm-7:51 pm

1 stop6h 49m

$190

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 57% 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

$224

Fastest flight time

1h 15m

Direct flights

Tue, Thu, Fri, Sat and Sun

Airports in Baltimore

1 airport
The best one-way flight to Baltimore from Islip, New York in the past 72 hours is $224. The best round-trip flight deal from Islip, New York to Baltimore found on momondo in the last 72 hours is $313.
The fastest flight from Islip, New York to Baltimore takes 1h 15m
Direct flights go from Islip, New York to Baltimore on Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Baltimore: 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 $250Free CancellationRating
8.0
4,254 reviews
Search Southwest flights

  • Southwest Flights From Islip, New York to Baltimore

    Southwest operates around 24 flights from Islip, New York to Baltimore every week. The average price of these flights found in the last 72 hours has been $351, but momondo users have found Southwest deals from Islip, New York to Baltimore from as low as $250 round-trip. Southwest has been scored 8.0/10 in 4,254 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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