ISP - BWI

$69 Find Cheap Flights from Islip to Baltimore - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$137
Typical prices: $310-$539
Southwest
Mon 11/26Mon 12/3
ISP - BWI • Non-stop
Cheapest one-way
$69
Typical prices: $190-$400
Southwest
Fri 11/16
ISP - BWI • Non-stop
Nonstop flights
Every day
You can fly direct with Southwest. Average duration is 1h 20m
Direct flights
+1
Direct flights
+1
When to travel
December
Cheapest • 30% price drop
May
Most popular
Good to know
+1
Good to know
+1
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Booking Insights
Flight Deals

Cheap Flights from Islip to Baltimore (ISP-BWI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Baltimore

Thu, Nov 26 - Thu, Dec 3
Southwest Logo
11:40 am - 12:55 pmISP  Islip Long Island-BWI Baltimore/Washington
1h 15mnonstop
Southwest Logo
3:05 pm - 4:15 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$137Southwest
Thu, Jan 28 - Sat, Jan 30
Southwest Logo
5:45 am - 7:15 amISP  Islip Long Island-BWI Baltimore/Washington
1h 30mnonstop
Southwest Logo
9:20 pm - 10:30 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$163Southwest
Thu, Jan 14 - Thu, Jan 14
Southwest Logo
5:45 am - 7:15 amISP  Islip Long Island-BWI Baltimore/Washington
1h 30mnonstop
Southwest Logo
10:40 am - 11:50 amBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$163Southwest
Thu, Jan 21 - Thu, Jan 28
Southwest Logo
3:25 pm - 4:45 pmISP  Islip Long Island-BWI Baltimore/Washington
1h 20mnonstop
Southwest Logo
8:20 pm - 9:30 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$163Southwest
Sun, Dec 6 - Thu, Dec 10
Southwest Logo
5:35 am - 6:55 amISP  Islip Long Island-BWI Baltimore/Washington
1h 20mnonstop
Southwest Logo
3:05 pm - 4:15 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$170Southwest
Wed, Dec 2 - Mon, Dec 7
Southwest Logo
6:05 am - 7:20 amISP  Islip Long Island-BWI Baltimore/Washington
1h 15mnonstop
Southwest Logo
3:05 pm - 4:15 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$201Southwest
Thu, Dec 3 - Sat, Dec 5
Southwest Logo
4:05 pm - 5:25 pmISP  Islip Long Island-BWI Baltimore/Washington
1h 20mnonstop
Southwest Logo
8:35 pm - 9:45 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$243Southwest
Thu, Dec 10 - Sat, Dec 12
Southwest Logo
6:05 am - 7:20 amISP  Islip Long Island-BWI Baltimore/Washington
1h 15mnonstop
Southwest Logo
1:45 pm - 2:55 pmBWI  Baltimore/Washington-ISP Islip Long Island
1h 10mnonstop
$243Southwest
Thu, Jan 21 - Thu, Jan 28
Multiple Airlines Logo
10:57 am - 6:56 amISP  Islip Long Island-BWI Baltimore/Washington
43h 59m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson
Multiple Airlines Logo
7:45 pm - 11:35 amBWI  Baltimore/Washington-ISP Islip Long Island
15h 50m1 stop Vero Beach
$285Multiple Airlines
Thu, Jan 28 - Sun, Jan 31
Multiple Airlines Logo
10:57 am - 6:56 amISP  Islip Long Island-BWI Baltimore/Washington
19h 59m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson
Multiple Airlines Logo
7:45 pm - 11:35 amBWI  Baltimore/Washington-ISP Islip Long Island
15h 50m1 stop Vero Beach
$298Multiple Airlines
Booking Insights

Price, demand and travel trends for Islip to Baltimore flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Islip to Baltimore?

Round-trip flights from Islip to Baltimore typically range from $310 to $539. The lowest price found in the past 5 days was $137, on Southwest.

What's the cheapest day of the week to fly from Islip to Baltimore?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Islip to Baltimore. It’s 9% cheaper than the average day, while Monday is the most expensive, with prices 64% higher.

What’s the cheapest month to fly from Islip to Baltimore?

•December is the cheapest month to fly from Islip to Baltimore at $255 round-trip.
•February ($649) and April ($621) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 154% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Islip to Baltimore flights

Low season

February

Cheapest flight

$69
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 43% increase in travelers.
One-way flight from Islip to Baltimore

When to book flights from Islip to Baltimore

Are your dates flexible? Find out the best times to travel from Islip to Baltimore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Islip to Baltimore flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Islip to Baltimore?

    These are the earliest and latest flight times available from Islip to Baltimore:

    • Earliest: departs at 5:25 am and lands at 6:45 am
    • Latest: departs at 5:50 pm and lands at 7:10 pm.

    The flight takes about 1h 20m.

  • What cabin classes can I book on flights from Islip to Baltimore?

    Only Economy Class is available on flights from Islip to Baltimore.

  • How long is a flight from Islip to Baltimore?

    A nonstop flight from Islip to Baltimore takes 1h 20m, covering 219 miles.

  • Do I need a passport to fly from Islip to Baltimore?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Islip to Baltimore flight?

    Round-trip flights from Islip to Baltimore range from $310 to $539, with an average of $364 over the past 12 months. Anything below $310 counts as a good deal.

  • How much can I save by taking a layover when flying from Islip to Baltimore?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $129 round-trip via Orlando (MCO), compared to $365 for nonstop.

  • What is the standard checked-bag allowance on flights from Islip to Baltimore?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Islip to Baltimore?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and United Airlines. Other aircraft seen on the route include Boeing 737-900 variants.

  • How are flight departures from Islip to Baltimore spread across the day?

    Morning is the busiest departure period on Islip to Baltimore flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

  • How are flight prices from Islip to Baltimore looking right now?

    One-way fares from Islip to Baltimore are currently lower than usual. Average one-way flight prices are about $104, which is 70% below the typical average for this route.

  • What car rental options are available at Baltimore/Washington Airport (BWI)?

    Baltimore/Washington Airport (BWI) hosts 5 major car rental companies, with daily rates averaging $72 for economy cars. Top options include:

    • NextCar
    • Hertz
    • Dollar
    • Budget
    • Thrifty

  • Which airports can I use when flying from Islip to Baltimore?

    Flights from Islip to Baltimore usually depart from Islip Long Island (ISP) and arrive at Baltimore/Washington (BWI).

  • Which airports do connecting flights from Islip to Baltimore pass through?

    Most connecting flights from Islip to Baltimore pass through Orlando (MCO), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Islip to Baltimore?

    Yes. Flexible dates can save you up to 45% on flights from Islip to Baltimore. Tuesday is the cheapest departure day at $333 round-trip on average, while Monday is the most expensive at $597, a difference of $264.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Islip to Baltimore?

    Only Southwest operates flights between Islip and Baltimore.

  • What popular places can I visit in Baltimore?

    Some of the most popular sights in Baltimore are M&T Bank Stadium, National Aquarium Baltimore and Oriole Park At Camden Yards. These are among the most viewed places in Baltimore on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Islip to Baltimore flights?

    Among airlines operating Islip to Baltimore flights:

    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Islip to Baltimore flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Islip to Baltimore flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $333, about $264 less than Monday fares (44% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Islip to Baltimore trip for December. Fares historically average $255 round-trip in that month - typically $394 less than the most expensive month, which is February (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages $129 round-trip on this route - about $236 less than direct flights (based on the last 12 months).

Prefer to fly direct from Islip to Baltimore?

 
Find which airlines fly direct from Islip Long Island Airport to Baltimore/Washington Airport, which days they fly and book direct flights.

Direct departures

Islip Long Island to Baltimore/Washington

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Baltimore/Washington to Islip Long Island

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

More options for your flight from Islip to Baltimore

Complete your trip to Baltimore with a hotel stay or car rental

Car rentals in Baltimore
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