Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.
ISPDCASat, 03 Oct
Fare checked before payment No hidden charges Transparent cancellation policy 24×7 booking support
Lowest fareUS$440Cape Air
Fastest4h 19mgate to gate
Options found40flights on this route
Find your flightISP → DCA
Available Flights & Fares
Compare fares, timings and baggage. Pick the flight that suits your trip.
Prices in USD
40 flight options
Fares are checked again before payment.
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Holiday Inn Express & Suites Ft. Washington - Philadelphia
432 Pennsylvania Avenue, 19034
Room availability is checked live
$240per night+ taxes if applicable
1 Night • 4 Star
Cape Air
9K-212
09:05
2026-10-03
Islip NY (ISP)Long Island Mac Arthur
9H :08 M
2 Stops
BOS
· 1h 06m Boston (BOS), United States
CLT
· 2h 45m Charlotte (CLT), United States
18:13
2026-10-03
WASHINGTON DC (DCA)Ronald Reagan National
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 2 Pieces
$515
Flight DetailsISP to DCA - 9H :08 M
Baggage InfoCheck-in 0 Pieces - Cabin 2 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Cape Air
9K-212
09:05
2026-10-03
Islip NY (ISP)Long Island Mac Arthur
10H :24 M
1 Stop
BOS
· 7h 05m Boston (BOS), United States
19:29
2026-10-03
WASHINGTON DC (DCA)Ronald Reagan National
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 2 Pieces
$515
Flight DetailsISP to DCA - 10H :24 M
Baggage InfoCheck-in 0 Pieces - Cabin 2 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Cape Air
9K-212
09:05
2026-10-03
Islip NY (ISP)Long Island Mac Arthur
5H :05 M
1 Stop
BOS
· 1h 50m Boston (BOS), United States
14:10
2026-10-03
WASHINGTON DC (DCA)Ronald Reagan National
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$522
Flight DetailsISP to DCA - 5H :05 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Cape Air
9K-212
09:05
2026-10-03
Islip NY (ISP)Long Island Mac Arthur
8H :24 M
2 Stops
BOS
· 2h 40m Boston (BOS), United States
DTW
· 0h 31m Detroit (DTW), United States
17:29
2026-10-03
WASHINGTON DC (DCA)Ronald Reagan National
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$557
Flight DetailsISP to DCA - 8H :24 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
No flights match the selected filters. Clear filters or open full search.
Today's Airfare Highlights
Selected flight highlights for 03 Oct 2026.
Lowest fare$440Cape Air15:10
Earliest departure$445Cape Air07:05
Shortest duration$450Cape Air15:10
Night
00:00-05:59
No optionOpen full search for moreMorning
06:00-11:59
$445Cape Air at 07:05Afternoon
12:00-17:59
$440Cape Air at 15:10Evening
18:00-23:59
No optionOpen full search for more
Departure & Arrival Airport Details
Islip Ny (ISP)
Long Island Mac Arthur
United States
GMT -5
Latitude: 40.79520035
Longitude: -73.10019684
Washington Dc (DCA)
Ronald Reagan National
United States
GMT -5
Latitude: 38.8521
Longitude: -77.037697
Distance: Islip Ny (ISP), United States to Washington Dc (DCA), United States - 399.63 km
Flights shown for 03 Oct 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier — or shifting a day or two — often costs less.
Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).
12OctColumbus DayMonday · in 30 daysPeak
12OctColumbus DayMonday · in 30 daysPeak
12OctIndigenous Peoples' DayMonday · in 30 daysPeak
11NovVeterans DayWednesday · in 60 days
26NovThanksgiving DayThursday · in 75 days
25DecChristmas DayFriday · in 104 days
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here — check the exact date for your travel year.
Compare your journey
How to travel Islip Ny to Washington Dc
Every option we can actually book for you, compared on price and journey time.
OptionFromJourney timeAvailability
Connecting flight₹41,989Longer — includes a stop40 options
Air distance is about 400 km. FlyX does not currently sell a bus on this pair.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from Islip Ny to Washington Dc
Compare fares, stops, baggage and refundability across the airlines flying this route.
CA
Cape Air Flights
from $44040 flights
Fares from
$440
Non-stop
None in these results
Departures
40 — compare timings in the list above
Route Overview & Flight Facts
Fastest flight duration
4h 19m · Cape Air
First departure of the day
07:05 · Cape Air
Last departure of the day
15:10 · Cape Air
Options in this snapshot
40
Airport codes
Islip Ny–ISP, Washington Dc–DCA
Fares and timings are indicative — the exact price is confirmed with the airline when you search.
Flight Schedule, Timings & Airfare Insights
Daily Flight Schedule & Travel Duration
Around 40 flights appear in the dated route snapshot. Departures run through the day — the first flight leaves around 07:05 and the last around 15:10. The fastest flight takes about 4h 19m.
Morning vs Evening Departure Fares
Lowest fare by departure window: Afternoon from $440, Morning from $445. These observations do not predict the cheapest departure window on other dates.
Cheapest Airfare & Best Time to Book
Search your travel dates to compare current fares — prices update continuously with airline inventory.
One-Way vs Round-Trip Fare Comparison
Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.
Online Web Check-In & Boarding Pass
Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.
How to Book Cheap Flights on FlyX
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2
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Sort or filter the Islip Ny–Washington Dc results by price, departure time, stops and airline.
3
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Check baggage allowance and refundability for each fare type before continuing.
4
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5
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Why Book Your Flight with FlyX?
Compare the available Islip Ny to Washington Dc options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.
Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.
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Frequently Asked Questions
Is it worth booking Islip Ny to Washington Dc flights in advance?
There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. Across the dates currently loaded for Islip Ny to Washington Dc, Saturday shows the lowest fare at $440. That is an observed snapshot for these dates, not a rule that holds every week.
How far is Islip Ny from Washington Dc by air?
The direct air distance between Islip Ny (ISP) and Washington Dc (DCA) is about 400 km. Actual flight time varies with the routing the airline files and with winds on the day.
Are there non-stop flights from ISP to DCA?
Not for the dates currently loaded - every Islip Ny to Washington Dc option showing right now has at least one stop. Non-stop service can differ by season and by day, so it is worth checking nearby dates before you decide.
Which airlines fly Islip Ny to Washington Dc?
Cape Air is showing on this route for the dates currently loaded. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.
How long is the flight from Islip Ny to Washington Dc?
Every option currently loaded has at least one stop, and the shortest total journey time is about 4h 19m including the layover. Non-stop service on this route can vary by season and by day.
What is the cheapest Islip Ny to Washington Dc flight fare?
The lowest fare showing on Islip Ny to Washington Dc for the dates currently loaded is $440. Fares on the same dates run up to $1,100, depending on airline, timing and fare type. Airline pricing moves continuously, so treat this as a dated observation rather than a fixed price.
What time do Islip Ny to Washington Dc flights depart?
For the dates currently loaded the first departure is around 07:05 and the last is around 15:10, local time at Islip Ny. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.
Why does the price change after clicking Book Now?
Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay - if it has moved, you see the new figure before any payment.
Before you book this route
Check the airport codes ISP–DCA, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.
Where these fares come from
The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price — run a search to see what is available for your own dates.
Last checked .
Check official travel requirements
Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.
Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.
The ISP to DCA cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 399.63 km.
Before you book
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Lowest Islip Ny to Washington Dc airfare today, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare Today
$440
03/10/2026
Cape Air
15:10
Cheapest Airfare Within 30 Days
$431
12/10/2026
Cape Air
15:10
Cheapest Airfare Within 90 Days
$418
11/12/2026
Cape Air
15:10
Book Islip Ny to Washington Dc Flight Tickets on FlyX
Planning to fly from Islip Ny to Washington Dc? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
Islip Ny to Washington Dc Flight Distance, Duration and Time
The aerial distance between Islip Ny and Washington Dc is approximately 400 KM. The flight duration ranges from 4H :19 M up to 16H :54 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
Islip Ny to Washington Dc Flight Schedule and Timing
Around 40 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from Islip Ny at 07:05, while the last night flight leaves at 15:10. Flights depart from Long Island Mac Arthur and land at Ronald Reagan National.
Flight Route Details & Analysis
Flight Details
Information
Route
Islip Ny to Washington Dc
Aerial Distance
400 KM
Flight Duration
4H :19 M - 16H :54 M
Airport Codes
Islip Ny - ISP, Washington Dc - DCA
Total Flights Available
40 flights (0 direct)
First Flight Departure
Departs at 07:05
Last Flight Departure
Departs at 15:10
Early Morning Flights (12 AM - 8 AM)
21 direct/indirect flights
Morning Flights (8 AM - 12 PM)
13 direct/indirect flights
Afternoon Flights (12 PM - 4 PM)
6 direct/indirect flights
Evening Flights (4 PM - 8 PM)
0 direct/indirect flights
Night Flights (8 PM - 12 AM)
0 direct/indirect flights
Airport Information & Terminals
ISP: Long Island airport. Long Island airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
DCA: Washington DC airport. Washington DC airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
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Long Island Mac Arthur