Flights Washington → Islip
DCA → ISP
Route overview
The flight route connects Washington, a city with a rich aviation history dating back to its airport's opening in 1938, with Islip. The destination airport sees approximately 1,580,000 passengers annually, reflecting significant travel demand between these two cities.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Washington (DCA) → Islip (ISP) route is operated by American Airlines. FlightGuard's average computed risk is 11.9/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Islip the average ATFM delay is 3.5 minutes (main cause: airspace/NAS (BTS)). Departing from Washington the average ATFM delay is 2.0 minutes.
Heading to Islip: what to expect in this direction
Flying from Washington (DCA) to Islip (ISP) heads north-east for about 400 km, a flight time of roughly 55m.
Air-traffic congestion: departing Washington the average ATFM delay is 2.0 min (atfm); arriving into Islip it is 3.5 min (airspace/NAS (BTS)).
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| American Airlines (AA) | 74% | 16 min | 3.0% |
Airlines operating DCA-ISP
Airports
Frequently asked questions about DCA-ISP
Route-specific punctuality data isn't available yet. Check your flight on FlightGuard for a real-time analysis.
The cancellation rate varies by airline and season. Check your flight risk for an up-to-date estimate.
The route is operated by 1 airline: American Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Islip, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
