BWI - ISP

$95 Find Cheap Flights from Baltimore to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Islip departing on 12/4. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to Islip, 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 Baltimore to Islip, as well as popular online travel agencies
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Baltimore to Islip (BWI-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to Islip 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 Baltimore to Islip

Fri, Oct 3 - Sun, Oct 5
Frontier Logo
8:21 am - 4:27 pmBWI-ISP
8h 06m1 stop
Frontier Logo
9:49 am - 8:05 pmISP-BWI
10h 16m1 stop
$165Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
Frontier Logo
4:20 pm - 10:37 amBWI-ISP
18h 17m2 stops
Frontier Logo
9:27 pm - 8:34 amISP-BWI
11h 07m1 stop
$191Frontier
Find Deal
Sun, Oct 19 - Thu, Oct 23
Frontier Logo
10:00 pm - 9:04 amBWI-ISP
11h 04m1 stop
Frontier Logo
9:37 pm - 8:34 amISP-BWI
10h 57m1 stop
$195Frontier
Find Deal
Tue, Oct 7 - Wed, Oct 8
Frontier Logo
11:19 am - 8:42 pmBWI-ISP
9h 23m1 stop
Frontier Logo
4:58 pm - 10:30 amISP-BWI
17h 32m1 stop
$196Frontier
Find Deal
Mon, Sep 29 - Fri, Oct 3
Frontier Logo
8:21 am - 4:27 pmBWI-ISP
8h 06m1 stop
Frontier Logo
9:49 am - 12:17 amISP-BWI
14h 28m2 stops
$197Frontier
Find Deal
Mon, Sep 29 - Fri, Oct 3
Multiple Airlines Logo
8:52 pm - 10:40 amBWI-ISP
13h 48m1 stop
Multiple Airlines Logo
5:05 pm - 3:32 pmISP-BWI
22h 27m1 stop
$226Multiple Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 8
Southwest Logo
3:00 pm - 4:05 pmBWI-ISP
1h 05mnonstop
Southwest Logo
6:00 am - 7:15 amISP-BWI
1h 15mnonstop
$237Southwest
Find Deal
Thu, Oct 9 - Tue, Oct 14
Southwest Logo
10:35 pm - 11:45 pmBWI-ISP
1h 10mnonstop
Southwest Logo
4:55 pm - 6:10 pmISP-BWI
1h 15mnonstop
$246Southwest
Find Deal
Thu, Jan 8 - Mon, Jan 12
Southwest Logo
10:45 am - 11:55 amBWI-ISP
1h 10mnonstop
Southwest Logo
3:45 pm - 5:05 pmISP-BWI
1h 20mnonstop
$255Southwest
Find Deal
Fri, Oct 24 - Mon, Oct 27
Southwest Logo
10:35 pm - 11:45 pmBWI-ISP
1h 10mnonstop
Southwest Logo
5:30 am - 6:45 amISP-BWI
1h 15mnonstop
$265Southwest
Find Deal

Everything you should know

Top airlines
Frontier
Cheapest • from $165 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
December
Cheapest • 26% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$165
Overall average: $341
Frontier
Fri 10/3Sun 10/5
BWI - ISP • 1 stop
Cheapest non-stop
$237
Typical prices: $304-800
Southwest
Tue 10/7Wed 10/8
BWI - ISP • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
Booking Insights

KAYAK's insights & trends for Baltimore to Islip flights

Get data-powered insights and trends into flights from Baltimore to Islip 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 Baltimore to Islip?

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

If your flying dates are flexible, you should consider flying to Islip on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Baltimore to Islip. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to Islip, 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 Baltimore to Islip is December, where tickets cost $282 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $573 and $486 respectively.

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

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 $363 on average.

Good to know

Low seasonFebruary
Cheapest flight$95
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Baltimore to Islip

When to book flights from Baltimore to Islip

Are your dates flexible? Find out the best times to travel from Baltimore to Islip 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 Baltimore to Islip

  • What is the cheapest flight from Baltimore to Islip?

    In the last 3 days, the lowest price for a flight from Baltimore to Islip was $95 for a one-way ticket and $165 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

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

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Baltimore to Islip flight route.

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

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

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

    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 Baltimore to Islip.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Baltimore 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 Baltimore to Islip?

    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 Islip with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and ISP 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 Baltimore to Islip?

    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 Islip from Baltimore 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 Baltimore to Islip

  • Looking for a cheap flight? 25% of our users found flights on this route for $306 or less one-way and $304 or less round-trip.

Prefer to fly direct from Baltimore to Islip?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Baltimore/Washington to Islip Long Island.
Find which airlines fly direct from Baltimore/Washington Airport to Islip Long Island Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

Reviews of the top airline flying from Baltimore to Islip

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to Islip. 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 Baltimore to Islip? 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 4242 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

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

Information on your arrival and departure airports

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