Swiss International Air LinesLX100% on time
Flights LX73 20:20 daily
live
Direct flights from Washington (IAD) to Zurich (ZRH): 14 nonstop departures observed each week across 2 airlines. 100% of the last 14 operated flights arrived within 15 minutes of schedule. The median arrival is 24 minutes early. No cancellations were recorded across the 14 tracked flights. The nonstop covers 6,673 km, an estimated 9 hours 3 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Zurich. Updated 12 September 2026 at 06:16 UTC.
IAD
Washington
disrupted · +85
ZRH
Zurich
smooth · +0
6,673 km · ~9h 03m est.
Runs reliable · 2 airlines · 14x weekly · nonstop
100% on time
of the last 14 operated IAD → ZRH flights arrived within 15 minutes
Median arrival delay is −24 min. 0 of 14 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−24 minacross the last 14 operated legs
Flight time~9h 03mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 14
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Swiss International Air LinesUnited Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysUnited AirlinesUA100% on time
Flights UA52 17:40 daily
History
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at ZRH: 44% odds of a 15+ minute delay and around +12 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Washington to Zurich route actually runs
Pro Flight Search records official board updates for nonstop IAD to ZRH flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Washington (IAD) to Zurich (ZRH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IAD-ZRH
IAD to ZRH questions
Is IAD–ZRH running on time right now?
Significant delay risk. The departure side at IAD is the weaker end, route health score 50/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IAD–ZRH?
Operators schedule evening departures around 17:40 from IAD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ZRH delay card to confirm conditions when you'd arrive.
How long is the flight from IAD to ZRH?
Great-circle distance is 6,673 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 501–602 min gate-to-gate on this route.
How often does IAD–ZRH fly?
2 carriers operate this route, around 14 flights a week between them. Compare carrier days and times in the airline list above.
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