ISP - BWI

$107 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 7/29. 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
$275
Typical prices: $562-$381
Southwest
Tue 6/30Tue 7/7
ISP - BWI • Non-stop
Cheapest one-way
$107
Typical prices: $214-$409
Frontier
Wed 7/29
ISP - BWI • 1 stop
Top airlines
Cheapest • from $275 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest. Average duration is 1h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to travel
Cheapest • 42% price drop
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

Tue, Jun 30 - Tue, Jul 7
Southwest Logo
4:40 pm - 5:55 pm
ISP
-
BWI
1h 15mnonstop
Southwest Logo
9:20 pm - 10:40 pm
BWI
-
ISP
1h 20mnonstop
$275Southwest
Sat, Aug 15 - Wed, Aug 19
Southwest Logo
3:15 pm - 4:30 pm
ISP
-
BWI
1h 15mnonstop
Southwest Logo
3:45 pm - 4:55 pm
BWI
-
ISP
1h 10mnonstop
$290Southwest
Sat, Sep 5 - Sat, Sep 12
Southwest Logo
11:55 am - 1:15 pm
ISP
-
BWI
1h 20mnonstop
Southwest Logo
10:55 am - 12:05 pm
BWI
-
ISP
1h 10mnonstop
$305Southwest
Tue, Jun 23 - Thu, Jun 25
Southwest Logo
12:25 pm - 1:40 pm
ISP
-
BWI
1h 15mnonstop
Southwest Logo
7:10 am - 8:20 am
BWI
-
ISP
1h 10mnonstop
$328Southwest
Mon, Jun 15 - Fri, Jun 19
Frontier Logo
9:52 pm - 9:01 am
ISP
-
BWI
11h 09m
1 stop
Frontier Logo
9:30 pm - 8:57 pm
BWI
-
ISP
23h 27m
1 stop
$334Frontier
Sat, Aug 15 - Wed, Aug 19
Multiple Airlines Logo
11:57 am - 3:34 pm
ISP
-
BWI
27h 37m
2 stops
Multiple Airlines Logo
10:34 am - 7:05 pm
BWI
-
ISP
8h 31m
1 stop
$338Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
Multiple Airlines Logo
11:57 am - 9:06 am
ISP
-
BWI
21h 09m
2 stops
Multiple Airlines Logo
9:52 pm - 9:33 am
BWI
-
ISP
11h 41m
1 stop
$339Multiple Airlines
Fri, Jul 31 - Sun, Aug 2
Frontier Logo
7:46 pm - 9:04 am
ISP
-
BWI
13h 18m
1 stop
Frontier Logo
9:28 pm - 9:53 am
BWI
-
ISP
12h 25m
1 stop
$342Frontier
Fri, Sep 11 - Mon, Sep 14
Southwest Logo
12:35 pm - 1:50 pm
ISP
-
BWI
1h 15mnonstop
Southwest Logo
8:25 am - 9:40 am
BWI
-
ISP
1h 15mnonstop
$343Southwest
Fri, Aug 14 - Sun, Aug 16
Southwest Logo
6:10 am - 7:25 am
ISP
-
BWI
1h 15mnonstop
Southwest Logo
8:40 am - 9:55 am
BWI
-
ISP
1h 15mnonstop
$359Southwest
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.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Islip, New York to Baltimore departing in June.

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, Saturday is the cheapest day to fly and Thursday 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 $255 (return) on average. On the other hand, the most expensive months are August and February, where the average cost of round-trip tickets is $655 and $649 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $339 on average.

Good to know

Low seasonFebruary
Cheapest flight$107
Best time to beat the crowds but there is an average 47% increase in price.
Most popular time to fly and prices are also 10% 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 5 days, the lowest price for a flight from Islip to Baltimore was $107 for a one-way ticket and $275 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, Delta, Alaska Airlines, and American Airlines 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 $203 or less one-way and $381 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 4254 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

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

Information on your arrival and departure airports