ISP - BWI

$74 Find Cheap Flights from Islip to Baltimore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Baltimore departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Baltimore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Baltimore, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Baltimore, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$272
Overall average: $297
Southwest
Wed 4/22Sat 4/25
ISP - BWI • Non-stop
Cheapest one-way
$74
Overall average: $327
Frontier
Mon 3/2
ISP - BWI • 1 stop
Top airlines
Southwest
Cheapest • from $272 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 29% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Baltimore!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to Baltimore (ISP-BWI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Baltimore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Baltimore

Wed, Apr 22 - Sat, Apr 25
Southwest Logo
9:00 am - 10:20 am
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:05 pm - 11:20 pm
BWI
-
ISP
1h 15mnonstop
$272Southwest
Wed, Mar 11 - Mon, Mar 16
Southwest Logo
12:20 pm - 1:35 pm
ISP
-
BWI
1h 15mnonstop
Southwest Logo
10:30 am - 11:40 am
BWI
-
ISP
1h 10mnonstop
$301Southwest
Fri, May 1 - Mon, May 4
Southwest Logo
4:30 pm - 5:50 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
3:20 pm - 4:30 pm
BWI
-
ISP
1h 10mnonstop
$310Southwest
Sat, Feb 14 - Wed, Feb 18
Multiple Airlines Logo
5:07 pm - 11:55 pm
ISP
-
BWI
6h 48m
1 stop
Multiple Airlines Logo
8:00 am - 11:15 am
BWI
-
ISP
27h 15m
2 stops
$357Multiple Airlines
Wed, Apr 22 - Sat, Apr 25
Multiple Airlines Logo
11:50 am - 9:00 am
ISP
-
BWI
21h 10m
2 stops
Multiple Airlines Logo
8:44 pm - 9:13 am
BWI
-
ISP
12h 29m
1 stop
$375Multiple Airlines
Mon, Feb 16 - Mon, Feb 23
Frontier Logo
7:49 pm - 10:35 pm
ISP
-
BWI
26h 46m
1 stop
Frontier Logo
6:00 am - 12:53 am
BWI
-
ISP
18h 53m
2 stops
$477Frontier
Mon, Feb 16 - Mon, Feb 23
Southwest Logo
5:35 pm - 6:55 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
3:20 pm - 4:25 pm
BWI
-
ISP
1h 05mnonstop
$485Southwest
Fri, May 1 - Mon, May 4
Multiple Airlines Logo
4:07 pm - 11:44 pm
ISP
-
BWI
7h 37m
1 stop
Multiple Airlines Logo
11:57 am - 11:05 am
BWI
-
ISP
23h 08m
1 stop
$508Multiple Airlines
Sat, Feb 14 - Wed, Feb 18
Frontier Logo
5:07 pm - 11:55 pm
ISP
-
BWI
6h 48m
1 stop
Frontier Logo
8:25 pm - 2:39 pm
BWI
-
ISP
18h 14m
1 stop
$511Frontier
Sat, Feb 14 - Wed, Feb 18
Multiple Airlines Logo
5:07 pm - 11:55 pm
ISP
-
BWI
6h 48m
1 stop
Multiple Airlines Logo
4:45 pm - 2:39 pm
BWI
-
ISP
21h 54m
1 stop
$515Multiple Airlines
Booking Insights

KAYAK's insights & trends for Islip to Baltimore flights

Get data-powered insights and trends into flights from Islip to Baltimore to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all round-trip flights from Islip to Baltimore clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Islip to Baltimore, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Baltimore, Tuesday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Islip to Baltimore?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to Baltimore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Islip to Baltimore is January, where tickets cost $282 (return) on average. On the other hand, the most expensive months are June and February, where the average cost of round-trip tickets is $485 and $474 respectively.

Can I save money by flying with a layover from Islip to Baltimore?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $281, prices are generally cheapest when you fly direct.

Good to know

Low seasonJanuary
Cheapest flight$74
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 26% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to Baltimore

  • What is the cheapest flight from Islip to Baltimore?

    In the last 3 days, the lowest price for a flight from Islip to Baltimore was $74 for a one-way ticket and $272 for a round-trip.

  • Do I need a passport to fly between Islip and Baltimore?

    No, a passport isn't needed to fly from Islip to Baltimore. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Islip to Baltimore?

    JetBlue, and Delta offer inflight Wi-Fi service on the Islip to Baltimore flight route.

  • Which aircraft models fly most regularly from Islip to Baltimore?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Islip to Baltimore flight route.

  • On which days can I fly direct from Islip to Baltimore?

    There are nonstop flights from Islip to Baltimore on a daily basis.

  • How does KAYAK find such low prices on flights from Islip to Baltimore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Baltimore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Baltimore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Baltimore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Baltimore with an airline and back to Islip with another airline. Booking your flights between Islip and BWI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Baltimore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Baltimore from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Islip to Baltimore

  • Looking for a cheap flight? 25% of our users found flights on this route for $188 or less one-way and $319 or less round-trip.

Prefer to fly direct from Islip to Baltimore?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Islip Long Island to Baltimore/Washington.
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

Reviews of the top airline flying from Islip to Baltimore

 
See real verified KAYAK customer reviews for airlines flying from Islip to Baltimore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Baltimore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4267 reviews
7.5Entertainment
8.6Crew
7.0Food
8.1Boarding
8.0Comfort
Airline reviews

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

10.0 ExcellentJoseph, Jan 2026
BWI - RIC
Read more Southwest reviews

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

Everything you need to know for your flight from Islip to Baltimore

Information on your arrival and departure airports