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

IAD Airport Page →
264 mi airlines charter/private 1/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 11 1-stop flights Verified 2d ago
Also flown by charter / private operators.
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
CHS Charleston 5h ACCMOS → MX Charleston (CHS) to Islip flights
BOS Boston 5h 6m AVAZCM → 9K Boston (BOS) to Islip flights
RIC Richmond 5h 8m AVCMOS → MX Richmond (RIC) to Islip flights
RDU Raleigh/Durham 5h 13m ACAVCM → MX Raleigh/Durham (RDU) to Islip flights
ORF Norfolk 5h 21m AVCMOS → MX Norfolk (ORF) to Islip flights
MCO Orlando 5h 54m ADAVAZ → B6F9WN Orlando (MCO) to Islip flights
MYR Myrtle Beach 6h 13m UA → F9MX Myrtle Beach (MYR) to Islip flights
TPA Tampa 7h 44m AVAZCM → F9WN Tampa (TPA) to Islip flights
RSW Fort Myers 10h 41m UA → MX Fort Myers (RSW) to Islip flights
FLL Fort Lauderdale 13h 26m CMEJAF9 → B6 Fort Lauderdale (FLL) to Islip flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Dulles to Islip
Connecting service available through multiple hubs.
264 mi 0h 56m nonstop

While no nonstop service exists between IAD and ISP, 1-stop connecting options are available.

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

Connection Landscape

1-stop and 2-stop options for IAD to ISP.
1-STOP
One-Stop Connections
11
Hubs
~5h
Fastest
~21h
Longest
CHS ~5h 0m BOS ~5h 6m RIC ~5h 8m RDU ~5h 13m ORF ~5h 21m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
657
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
IAD → ISP
75%
Generally reliable. Most flights run on time.
Departing
75%
Arriving
34%
Return
ISP → IAD
0%
Frequent delays expected. Consider flexible booking.
Departing
0%
Arriving
85%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays → ISP delays →
Alternatives

Other ways to reach Islip from Dulles

Nearby airports with service to Long Island MacArthur Airport.
Metric IAD→ISP BWI→ISP RIC→ISP
Distance from IAD – 45 mi 100 mi
Nonstop airlines – 4 1
Weekly flights – 44 2
Flight time 0h 56m 1h 10m 1h 16m
Departure OTP 75% – –
Baltimore (BWI) to Islip flights · Richmond (RIC) to Islip flights
Airports within 200 miles of IAD with service to Long Island MacArthur Airport.
Know before you go

Travel Essentials

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

When it's 6:00 PM in Dulles, it's 6:00 PM in Islip.
Distance & Flight Time
264 mi / 425 km
Nonstop flight time is approximately 0h 56m gate to gate.
Getting to IAD

WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).

Facts

IAD–ISP Quick Facts

Key statistics for the Dulles to Islip route.
Route details
Distance264 mi / 425 km
Flight time0h 56m
Time difference0 hours
Airlines (nonstop)0
1-stop connectionsAvailable
Origin: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
Destination: ISP
Full nameLong Island MacArthur Airport
IATA / ICAOISP / KISP
TimezoneAmerica/New_York
Passengers/yr1.4M
Elevation99 ft / 30 m
FAQ

Frequently Asked Questions

Common questions about IAD to ISP flights.
Nonstop flights from Washington Dulles International Airport to Long Island MacArthur Airport take about 0h 56m gate to gate. The route covers 264 miles.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Charleston, Boston Logan and Richmond.
Yes, return flights from ISP to IAD are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BWI and RIC. 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 IAD to ISP

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

IAD to ISP Flight Duration and Schedule

Nonstop flight time from IAD to ISP is about 0 hours 56 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 Charleston, Boston Logan and Richmond. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Baltimore (BWI) and Richmond (RIC).