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ISP - BOS

$189 Find Cheap Flights from Islip to Boston - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$377
Typical prices: $503-$594
Southwest
Mon 10/29Mon 11/5
ISP - BOS • 1 stop
Cheapest non-stop
$492
Typical prices: $507-$610
Cape Air
Wed 10/10Sun 10/14
ISP - BOS • Non-stop
Nonstop flights
Every day
You can fly direct with Cape Air. Average duration is 1h 24m
Direct flights
+1
Direct flights
+1
When to travel
June
Cheapest • 3% price drop
November
Most popular
Good to know
+1
Good to know
+1
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Booking Insights
Flight Deals

Cheap Flights from Islip to Boston (ISP-BOS)

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

Recent round-trip flight deals from Islip to Boston

Thu, Oct 29 - Thu, Nov 5
Southwest Logo
3:10 pm - 7:15 pmISP  Islip Long Island-BOS Boston Logan Intl
4h 05m1 stop Baltimore/Washington
Southwest Logo
11:45 am - 5:05 pmBOS  Boston Logan Intl-ISP Islip Long Island
5h 20m1 stop Baltimore/Washington
$377Southwest
Fri, Nov 6 - Tue, Nov 10
Southwest Logo
5:40 pm - 11:55 pmISP  Islip Long Island-BOS Boston Logan Intl
6h 15m1 stop Baltimore/Washington
Southwest Logo
3:30 pm - 9:45 pmBOS  Boston Logan Intl-ISP Islip Long Island
6h 15m1 stop Baltimore/Washington
$377Southwest
Thu, Nov 5 - Tue, Nov 10
Southwest Logo
5:40 pm - 11:55 pmISP  Islip Long Island-BOS Boston Logan Intl
6h 15m1 stop Baltimore/Washington
Southwest Logo
3:30 pm - 9:45 pmBOS  Boston Logan Intl-ISP Islip Long Island
6h 15m1 stop Baltimore/Washington
$377Southwest
Fri, Nov 6 - Sun, Nov 8
Southwest Logo
5:40 pm - 11:55 pmISP  Islip Long Island-BOS Boston Logan Intl
6h 15m1 stop Baltimore/Washington
Southwest Logo
5:35 am - 11:45 amBOS  Boston Logan Intl-ISP Islip Long Island
6h 10m1 stop Baltimore/Washington
$377Southwest
Fri, Nov 13 - Mon, Nov 16
Southwest Logo
5:40 pm - 11:55 pmISP  Islip Long Island-BOS Boston Logan Intl
6h 15m1 stop Baltimore/Washington
Southwest Logo
5:35 pm - 9:45 pmBOS  Boston Logan Intl-ISP Islip Long Island
4h 10m1 stop Baltimore/Washington
$377Southwest
Fri, Nov 13 - Mon, Nov 16
Southwest Logo
12:25 pm - 10:05 pmISP  Islip Long Island-BOS Boston Logan Intl
9h 40m2 stops Baltimore/Washington Chicago Midway
Southwest Logo
11:20 am - 4:15 pmBOS  Boston Logan Intl-ISP Islip Long Island
4h 55m1 stop Baltimore/Washington
$382Southwest
Thu, Oct 29 - Thu, Nov 5
Southwest Logo
6:00 am - 2:25 pmISP  Islip Long Island-BOS Boston Logan Intl
8h 25m2 stops Baltimore/Washington Chicago Midway
Southwest Logo
5:35 am - 11:45 amBOS  Boston Logan Intl-ISP Islip Long Island
6h 10m1 stop Baltimore/Washington
$382Southwest
Fri, Feb 19 - Sun, Feb 21
Southwest Logo
10:00 am - 4:50 pmISP  Islip Long Island-BOS Boston Logan Intl
6h 50m1 stop Baltimore/Washington
Southwest Logo
5:40 am - 9:20 amBOS  Boston Logan Intl-ISP Islip Long Island
3h 40m1 stop Baltimore/Washington
$387Southwest
Sat, Oct 10 - Wed, Oct 14
Cape Air Logo
3:10 pm - 4:35 pmISP  Islip Long Island-BOS Boston Logan Intl
1h 25mnonstop
Cape Air Logo
9:39 am - 11:09 amBOS  Boston Logan Intl-ISP Islip Long Island
1h 30mnonstop
$492Cape Air
Fri, Oct 23 - Sun, Oct 25
Cape Air Logo
9:59 am - 11:19 amISP  Islip Long Island-BOS Boston Logan Intl
1h 20mnonstop
Cape Air Logo
9:39 am - 11:09 amBOS  Boston Logan Intl-ISP Islip Long Island
1h 30mnonstop
$498Cape Air
Booking Insights

Price, demand and travel trends for Islip to Boston 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 Boston?

Round-trip flights from Islip to Boston typically range from $503 to $594. The lowest price found in the past 5 days was $377, on Southwest.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Islip to Boston. It’s 2% cheaper than the average day, while Sunday is the most expensive, with prices 30% higher.

Find deals

Key details for Islip to Boston flights

Low season

March

Cheapest flight

$189
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 20% increase in travelers.
One-way flight from Islip to Boston

When to book flights from Islip to Boston

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

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

    • Earliest: departs at 7:05 am and lands at 8:29 am
    • Latest: departs at 5:34 pm and lands at 6:58 pm.

    The flight takes about 1h 24m.

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

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

  • How long is a flight from Islip to Boston?

    A nonstop flight from Islip to Boston takes 1h 24m, covering 153 miles.

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

    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 Boston flight?

    Round-trip flights from Islip to Boston range from $503 to $594, with an average of $520 over the past 12 months. Anything below $503 counts as a good deal.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $383 round-trip via Baltimore/Washington (BWI), compared to $520 for nonstop.

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

    The Tecnam P2012 Traveler family is used most often on this route, operated mainly by Cape Air. Other aircraft seen on the route include Airbus A220-300 variants.

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

    Morning is the busiest departure period on Islip to Boston flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • Have flight prices from Islip to Boston changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $377 to $1,349. That means the highest observed fare was about 4x higher than the lowest one.

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

    One-way fares from Islip to Boston are currently lower than usual. Average one-way flight prices are about $235, which is 23% below the typical average for this route.

  • What car rental options are available at Boston Logan Intl Airport (BOS)?

    Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Thrifty
    • Sixt

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

    Flights from Islip to Boston usually depart from Islip Long Island (ISP) and arrive at Boston Logan Intl (BOS).

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

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

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

    Yes. Flexible dates can save you up to 25% on flights from Islip to Boston. Thursday is the cheapest departure day at $511 round-trip on average, while Sunday is the most expensive at $679, a difference of $168.

    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 Boston?

    Only Cape Air operates flights between Islip and Boston.

  • What popular places can I visit in Boston?

    Some of the most popular sights in Boston are TD Garden, Fenway Park and Boston Common. These are among the most viewed places in Boston on KAYAK.

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

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

    • Cape Air: a cabin bag in Economy Class 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 Boston 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 Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $511, about $168 less than Sunday fares (25% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Islip to Boston trip for June. Fares historically average $503 round-trip in that month - typically $117 less than the most expensive month, which is November (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Baltimore/Washington Airport (BWI) can be cheaper than flying direct. The cheapest layover option averages $383 round-trip on this route - about $136 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boston Logan Intl Airport.

    • Hyatt Regency Boston Harbor
    • Hilton Boston Logan Airport
    • Hilton Garden Inn Boston Logan Airport

Prefer to fly direct from Islip to Boston?

 
Find which airlines fly direct from Islip Long Island Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Islip Long Island to Boston Logan Intl

Monday

Cape Air

Cape Air

Tuesday

Cape Air

Cape Air

Wednesday

Cape Air

Cape Air

Thursday

Cape Air

Cape Air

Friday

Cape Air

Cape Air

Saturday

Cape Air

Cape Air

Sunday

Cape Air

Cape Air

See more direct flights

Direct returns

Boston Logan Intl to Islip Long Island

Monday

Cape Air

Cape Air

Tuesday

Cape Air

Cape Air

Wednesday

Cape Air

Cape Air

Thursday

Cape Air

Cape Air

Friday

Cape Air

Cape Air

Saturday

Cape Air

Cape Air

Sunday

Cape Air

Cape Air

See more direct flights

More options for your flight from Islip to Boston

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

Car rentals in Boston
Hotels in Boston
Vacations in Boston