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Cheap flights from Islip, New York to Washington, D.C. from $99

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 5/9. 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.
Multiple Airlines Logo
11:57 am - 7:36 am
ISP
-
BWI
19h 39m
2 stops
Multiple Airlines Logo
3:26 pm - 11:00 am
BWI
-
ISP
19h 34m
1 stop
$225Multiple Airlines
Wed, May 13 - Mon, May 18
Frontier Logo
11:12 am - 9:15 am
ISP
-
BWI
22h 03m
1 stop
Frontier Logo
9:23 pm - 10:05 am
BWI
-
ISP
36h 42m
2 stops
$227Frontier
Thu, May 7 - Mon, May 11
Multiple Airlines Logo
6:59 pm - 9:12 am
ISP
-
BWI
14h 13m
1 stop
Multiple Airlines Logo
9:23 pm - 4:47 pm
BWI
-
ISP
19h 24m
2 stops
$235Multiple Airlines
Fri, May 8 - Mon, May 11
Frontier Logo
11:00 am - 9:15 am
ISP
-
BWI
22h 15m
1 stop
Frontier Logo
3:26 pm - 11:00 am
BWI
-
ISP
19h 34m
1 stop
$243Frontier
Wed, May 13 - Mon, May 18
Multiple Airlines Logo
5:27 pm - 4:22 pm
ISP
-
BWI
22h 55m
2 stops
Multiple Airlines Logo
9:30 pm - 3:56 pm
BWI
-
ISP
18h 26m
1 stop
$244Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Multiple Airlines Logo
6:59 pm - 10:57 pm
ISP
-
BWI
27h 58m
2 stops
Multiple Airlines Logo
1:43 pm - 11:00 am
BWI
-
ISP
21h 17m
1 stop
$250Multiple Airlines
Mon, May 11 - Mon, May 18
Frontier Logo
4:07 pm - 5:00 pm
ISP
-
BWI
24h 53m
1 stop
Frontier Logo
3:26 pm - 10:05 am
BWI
-
ISP
18h 39m
1 stop
$257Frontier
Sun, May 3 - Fri, May 8
Frontier Logo
8:31 pm - 1:48 pm
ISP
-
BWI
17h 17m
2 stops
Frontier Logo
3:26 pm - 10:05 am
BWI
-
ISP
18h 39m
1 stop
$260Frontier
Sun, May 3 - Fri, May 8
Multiple Airlines Logo
11:00 am - 7:06 pm
ISP
-
BWI
8h 06m
1 stop
Multiple Airlines Logo
9:23 pm - 10:03 am
BWI
-
ISP
36h 40m
2 stops
$262Multiple Airlines
Thu, Jun 4 - Mon, Jun 8
Southwest Logo
9:00 am - 10:20 am
ISP
-
BWI
1h 20mnonstop
Southwest Logo
3:20 pm - 4:30 pm
BWI
-
ISP
1h 10mnonstop
$271Southwest
Wed, May 13 - Mon, May 18

Southwest flights from Islip, New York to Baltimore

Our best Southwest deals on Islip, New York to Baltimore flight tickets
Southwest
May 13
ISP9:00 amIslip Long Island
1h 20m
BWI10:20 amBaltimore/Washington
May 18
BWI3:20 pmBaltimore/Washington
1h 10m
ISP4:30 pmIslip Long Island
$271
Southwest
May 11
ISP8:35 amIslip Long Island
1h 20m
BWI9:55 amBaltimore/Washington
May 18
BWI10:20 pmBaltimore/Washington
1h 10m
ISP11:30 pmIslip Long Island
$279
Southwest
Jun 9
ISP4:40 pmIslip Long Island
1h 15m
BWI5:55 pmBaltimore/Washington
Jun 15
BWI10:25 pmBaltimore/Washington
1h 10m
ISP11:35 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 7
ISP11:12 amIslip Long Island
22h 03m
1 stop
BWI9:15 amBaltimore/Washington
May 11
BWI9:23 pmBaltimore/Washington
36h 42m
2 stops
ISP10:05 amIslip Long Island
$227
Frontier
May 13
ISP11:00 amIslip Long Island
22h 15m
1 stop
BWI9:15 amBaltimore/Washington
May 18
BWI3:26 pmBaltimore/Washington
19h 34m
1 stop
ISP11:00 amIslip Long Island
$243
Frontier
May 3
ISP4:07 pmIslip Long Island
24h 53m
1 stop
BWI5:00 pmBaltimore/Washington
May 8
BWI3:26 pmBaltimore/Washington
18h 39m
1 stop
ISP10:05 amIslip Long Island
$257

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 April 15, 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

11:57 am-7:36 am

2 stops19h 39m

Baltimore/Washington

Mon 5/18

3:26 pm-11:00 am

1 stop19h 34m

$225

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 5/7

11:12 am-9:15 am

1 stop22h 03m

Baltimore/Washington

Mon 5/11

9:23 pm-10:05 am

2 stops36h 42m

$227

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Fri 5/8

6:59 pm-9:12 am

1 stop14h 13m

Baltimore/Washington

Mon 5/11

9:23 pm-4:47 pm

2 stops19h 24m

$235

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 5/13

11:00 am-9:15 am

1 stop22h 15m

Baltimore/Washington

Mon 5/18

3:26 pm-11:00 am

1 stop19h 34m

$243

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Tue 6/9

5:27 pm-4:22 pm

2 stops22h 55m

Baltimore/Washington

Mon 6/15

9:30 pm-3:56 pm

1 stop18h 26m

$244

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Mon 5/11

6:59 pm-10:57 pm

2 stops27h 58m

Baltimore/Washington

Mon 5/18

1:43 pm-11:00 am

1 stop21h 17m

$250

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sun 5/3

4:07 pm-5:00 pm

1 stop24h 53m

Baltimore/Washington

Fri 5/8

3:26 pm-10:05 am

1 stop18h 39m

$257

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Sun 5/3

8:31 pm-1:48 pm

2 stops17h 17m

Baltimore/Washington

Fri 5/8

3:26 pm-10:05 am

1 stop18h 39m

$260

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Thu 6/4

11:00 am-7:06 pm

1 stop8h 06m

Baltimore/Washington

Mon 6/8

9:23 pm-10:03 am

2 stops36h 40m

$262
Quickest round-trip

IslipBaltimore

ISP - BWI

ISPBWI

Islip Long Island

Wed 5/13

9:00 am-10:20 am

Nonstop1h 20m

Baltimore/Washington

Mon 5/18

3:20 pm-4:30 pm

Nonstop1h 10m

$271

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 typical price of a round-trip flight between Islip, New York and Baltimore?

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in January, then December is your next best option. Flight prices from Islip, New York to Baltimore during December average around $319.

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?

No. A direct flight is the cheapest option for a flight between Islip, New York to Baltimore.

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

$219

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 $219. The best round-trip flight deal from Islip, New York to Baltimore found on momondo in the last 72 hours is $349.
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

Frequently asked questions about flying from Islip, New York to Baltimore

  • 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 $237Free CancellationRating
8.0
4,331 reviews
Search Southwest flights

  • Southwest Flights From Islip, New York to Baltimore

    Southwest operates around 21 flights from Islip, New York to Baltimore every week. The average price of these flights found in the last 72 hours has been $423, but momondo users have found Southwest deals from Islip, New York to Baltimore from as low as $237 round-trip. Southwest has been scored 8.0/10 in 4,331 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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