Islip to Dulles (ISP–IAD) — Airlines, Schedules & Connections

ISP Airport Page →
264 mi airlines charter/private ~2/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 12 1-stop flights Verified 2w ago
Charter / private route. No scheduled airline service — operated by charter & private aviation.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
ORF Norfolk 4h 9m MX → ACAVCM Norfolk (ORF) to Dulles flights
RDU Raleigh/Durham 4h 24m MX → ACAVAZ Raleigh/Durham (RDU) to Dulles flights
BOS Boston 4h 42m 9K → AVAZCM Boston (BOS) to Dulles flights
BWI Baltimore 5h 1m WN → UA Baltimore (BWI) to Dulles flights
MCO Orlando 5h 55m B6F9WN → AVAZCM Orlando (MCO) to Dulles flights
CHS Charleston 6h 55m MX → ACCMEJA Charleston (CHS) to Dulles flights
RIC Richmond 12h 45m MX → ACAVCM Richmond (RIC) to Dulles flights
TPA Tampa 15h 41m F9WN → AVAZCM Tampa (TPA) to Dulles flights
MYR Myrtle Beach 18h F9MX → ACUA Myrtle Beach (MYR) to Dulles flights
FLL Fort Lauderdale 18h 7m B6 → ADCMF9 Fort Lauderdale (FLL) to Dulles flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Islip to Dulles
Flown by charter / private operators — no scheduled airline service.
264 mi 1h 11m nonstop

ISP–IAD has no scheduled airline service; it is flown by charter / private operators. 1-stop connecting options are also available.

Also explore ISP Routes IAD Routes ISP Live Flights IAD Live Flights ISP Delays IAD Delays
All flights from Dulles (IAD) Dulles to Islip flights
Connections

Connection Landscape

1-stop and 2-stop options for ISP to IAD.
1-STOP
One-Stop Connections
12
Hubs
~4h
Fastest
~18h
Longest
ORF ~4h 9m RDU ~4h 24m BOS ~4h 42m BWI ~5h 1m MCO ~5h 55m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
674
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
ISP → IAD
67%
Moderate delays possible. Allow buffer time.
Departing
67%
Arriving
78%
Return
IAD → ISP
92%
Generally reliable. Most flights run on time.
Departing
92%
Arriving
67%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ISP delays → IAD delays →
Alternatives

Other ways to reach Dulles from Islip

Nearby airports with service to Washington Dulles International Airport.
Metric ISP→IAD HVN→IAD HPN→IAD
Distance from ISP – 34 mi 37 mi
Nonstop airlines – 3 25
Weekly flights ~2 1 6
Flight time 1h 11m 1h 11m 0h 48m
Departure OTP 67% – –
New Haven (HVN) to Dulles flights · White Plains (HPN) to Dulles flights · New York (JFK) to Dulles flights
Airports within 200 miles of ISP with service to Washington Dulles International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Dulles is 0 hours the same as Islip.
ISP: EDT · IAD: EDT

When it's 6:00 PM in Islip, it's 6:00 PM in Dulles.
Distance & Flight Time
264 mi / 425 km
Nonstop flight time is approximately 1h 11m gate to gate.
Getting from IAD

Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.

Dulles Climate

Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.

Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.

Check current weather forecasts before travel.
Facts

ISP–IAD Quick Facts

Key statistics for the Islip to Dulles route.
Route details
Distance264 mi / 425 km
Flight time1h 11m
Time difference0 hours
Airlines (nonstop)Charter / private
Weekly flights~2 out / ~1 return
1-stop connectionsAvailable
Origin: ISP
Full nameLong Island MacArthur Airport
IATA / ICAOISP / KISP
TimezoneAmerica/New_York
Passengers/yr1.4M
Elevation99 ft / 30 m
Destination: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
FAQ

Frequently Asked Questions

Common questions about ISP to IAD flights.
Nonstop flights from Long Island MacArthur Airport to Washington Dulles International Airport take about 1h 11m gate to gate. The route covers 264 miles.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Norfolk, Raleigh-Durham and Boston Logan.
Yes, return flights from IAD to ISP are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include HVN, HPN and JFK. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from ISP to IAD

Long Island MacArthur Airport (ISP) and Washington Dulles International Airport (IAD) are connected through multiple connecting hub airports.

ISP to IAD Flight Duration and Schedule

Nonstop flight time from ISP to IAD is about 1 hours 11 minutes gate to gate. The route covers a distance of 264 miles (425 km).

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Norfolk, Raleigh-Durham and Boston Logan. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include New Haven (HVN), White Plains (HPN) and New York (JFK).