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Route turbulence forecast

Houston Frankfurt

Turbulence forecast for flights from George Bush Intercontinental Houston Airport (IAH) to Frankfurt am Main Airport (FRA).

Standard route profile
Distance
8,403 km
4,537 nm
Typical duration
10h 16m
Ground-speed estimate
Cruise
FL390
39,000 ft
Jet stream
Moderate — partial jet exposure

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Get a segment-by-segment turbulence forecast for any scheduled flight from IAH to FRA, with live wind and pilot reports.

Live status with real-time delays and cancellations.

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What to expect on this route

Northbound · Great-circle bearing 40°

The route crosses mid-latitudes where the polar jet can influence flight conditions, though exposure is shorter than on genuine long-haul crossings. A large portion of the flight crosses open ocean (North Atlantic), where upper-level conditions are generally smoother than over continental terrain.

Ocean / water segments
North Atlantic

Seasonal turbulence pattern

The oceanic track sees its strongest jet-stream activity in the northern winter (Nov–Mar), when winds aloft are fastest and clear-air turbulence is more frequent.

Peak turbulence
November–March (Northern Hemisphere winter)
Typically calmest
Late spring to early autumn (May–September)

IAHFRA turbulence FAQ

Is the Houston to Frankfurt flight usually bumpy?

Most of the 8,403 km route sits in the mixed band with moderate jet-stream exposure. Historically that means occasional clear-air turbulence at cruise altitude is normal, especially in winter.

When is the best time to fly IAH to FRA for a smooth flight?

Statistically, Late spring to early autumn (May–September) sees the calmest conditions for this corridor. Within any season, morning departures see less convective (thunderstorm-driven) turbulence than afternoon flights.

How long is the flight from IAH to FRA?

Block time is usually around 10h 16m direct, cruising at approximately FL390 (39,000 ft). Actual duration varies with winds — tailwinds can shave 15–30 minutes, headwinds can add 30+ minutes on this northbound sector.

How accurate is Turbcast's forecast for this route?

We use live NOAA Aviation Weather Center pilot reports (PIREPs), SIGMETs and AIRMETs, layered with physics-based Ellrod and Richardson-number calculations from Open-Meteo pressure-level wind and temperature data. If a source is unavailable for a waypoint we show an em dash rather than invent a value.

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Flying the other way? FRAIAH turbulence forecast →

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