# Travel >> Destinations >> Europe

Flight Path: Washington D.C. (IAD) to Vienna (VIE) — Transatlantic Routing Explained

The great-circle route from Washington Dulles (IAD) to Vienna International (VIE) spans ~4,200 nm (7,800 km) northeast across the North Atlantic. Here's the typical operational flight path:

Phase-by-Phase Routing

Departure (IAD): Standard Instrument Departure (SID) — e.g., DEALE, GIBBZ, or CLIPR transitions depending on runway config and traffic flow. Initial climb to FL310-350.
U.S. East Coast Exit: Northeast trajectory over Maryland, Delaware, New Jersey, New York, Connecticut, Massachusetts — often crossing Long Island or Cape Cod into oceanic airspace.
North Atlantic Track (NAT) Entry: Via designated Oceanic Entry Point (OEP) — e.g., PORTI, BEDDY, OYSTR. Assigned to a North Atlantic Organized Track System (OTS) track (A-Z, westbound/eastbound alternate daily) based on jet stream optimization.
Transatlantic Crossing: 5.5-6.5 hours at Mach 0.82-0.85, FL350-390. Tracks shift daily: eastbound tracks (Z→A) ride the polar jet tailwind; westbound (A→Z) avoid headwinds. Gander (Canada) and Shanwick (UK/Ireland) Oceanic Control manage separation.
European Entry: Oceanic Exit Point (OXP) — e.g., NEXUS, RESNO, ETARI — into Shanwick/Scottish/UK airspace, then Maastricht UAC (Netherlands), Karlsruhe UAC (Germany), Prague FIR (Czechia).
Central Europe Transit: Typical overflight: Netherlands → Germany (Cologne/Frankfurt FIRs) → Czech Republic → Austria. ATC may vector for flow management.
Arrival (VIE): Standard Terminal Arrival Route (STAR) — e.g., VIENA, LAMSI, ROTAX — to ILS approach (Rwy 11/29 or 16/34). Vienna's alpine surroundings require precise navigation.