NCE→IAD

United Airlines is the only carrier the DOT report shows on NCE to IAD, with 142 flights and an average of 148 passengers aboard each. A single-carrier route gives a delayed passenger no same-day alternative on the same ticket, which is worth knowing before booking a tight onward connection.

The DOT's international report puts 34 flights on the pair in July 2025, the busiest month of the window, and 0 in April 2026, the thinnest. A summer-to-winter swing of that size means the winter schedule is a different operation: fewer frequencies, so a cancellation leaves a longer wait for the next seat.

EUROCONTROL's figures for Nice Côte d'Azur as a whole, every airline and every destination: 61.6% of departures and 71.5% of arrivals within 15 minutes of schedule from 1 January to 21 October 2026, with 84.7% of scheduled flights operated. The last seven days ran at 60.8% for departures, in line with the year. Air traffic flow management delay attributed to the airport averaged 2.8 minutes per arriving flight this year, 1.0 over the last week.

Every US route from Nice Côte d'Azur, and its full punctuality record

Washington Dulles International is scored on this site from the DOT's domestic data: 81.0% of its 57,762 domestic departures arrived on time over the last twelve months, with delayed flights running a little over an hour late, and 1.44% were cancelled. Those are domestic flights, not this route, but an arriving transatlantic flight shares the same runways, the same weather and the same ground delay programmes, so a bad day at IAD reaches a flight from NCE just as surely. The airport's own page has the hour-by-hour and month-by-month detail, and its live FAA status appears above when the FAA has something to say.

Washington Dulles International (IAD) delay statistics, hour by hour and month by month

Every flight that departs Nice Côte d'Azur falls under Regulation (EC) 261/2004, whichever airline flies it and wherever it lands. If it arrives at Washington Dulles International three hours or more late, or is cancelled with under 14 days' notice, and the cause was within the airline's control, each passenger is owed €600 (€300 if the airline got you there under four hours late), on top of rebooking and care. Weather, air traffic control restrictions and strikes outside the airline are the usual exemptions. The return flight from IAD is covered only when the carrier is EU based. The sector is about 4,208 miles, 6,771 km, which puts it in the top distance band.

Delayed three hours or more? Check a claim with Compensair →

There is no grade to give NCE to IAD without a route record, and this site does not invent one. What the three sources support: roughly a weekly round trip, a single carrier, a departure airport that gets 62% of its departures away on time and an arrival airport that runs 81% on time domestically. Leave two hours for any onward connection at IAD; immigration comes before the connecting flight.

• Nice Côte d'Azur (NCE): every US route
• Washington Dulles International (IAD) delay statistics
• NCE to EWR, Newark (EWR)475 flights
• NCE to JFK, New York (JFK)433 flights
• NCE to PHL, Philadelphia (PHL)296 flights
• NCE to ATL, Atlanta (ATL)268 flights
• LHR to IAD, from London3,880 flights
• FRA to IAD, from Frankfurt2,352 flights
• DUB to IAD, from Dublin2,342 flights
• CDG to IAD, from Paris2,247 flights
• Every Europe-to-US route and airport

France publishes no route-level punctuality, so this page cannot grade the route. The UK pages in this section can, because the CAA does.