How long is flight UA1700?

The EWR to SFO route is the basis for the schedule. View the full route forecast and typical duration on the Turbcast route page.

Flight UA1700

UA1700 Turbulence ForecastUnited Airlines · EWR → SFO

About flight UA1700

Airline: United Airlines (UA)
Route: EWR → SFO
Typical Aircraft: B763
Distance: 4,118 km
Duration: 5h 17m
Cruise Altitude: FL390

See today’s turbulence forecast

United Airlines UA1700 flies the jet-stream + mountain-wave corridor from Newark to San Francisco. Conditions change hour to hour - view the live forecast for your departure date.

View live forecast

Check UA1700 on a specific date

Turbulence on the EWR → SFO route

Jet-stream exposure on this corridor is significant. Long mid-latitude legs mean clear-air turbulence is the dominant source of bumps, typically encountered at cruise altitude. The route crosses or passes near the Rocky Mountains, which can generate mountain-wave turbulence downwind when upper-level winds are strong. Westbound aircraft typically fly against the prevailing winds, adding flight time. Captains often pick altitudes that avoid the strongest headwinds, which can also mean picking cleaner-air altitudes.

Calmest season: Late spring to early autumn (May-September). This corridor is most turbulent in the northern winter (Nov-Mar), when the jet stream is strongest and sits closer to the route. Wind flowing over the Rocky Mountains can generate mountain-wave turbulence that extends hundreds of kilometres downwind - most pronounced in the northern winter (Nov-Mar), when upper-level winds are strongest.

Full EWR to SFO route guide

Frequently asked questions

Is UA1700 usually a bumpy flight?

United Airlines UA1700 operates between EWR and SFO. Whether it’s bumpy depends on the day’s weather - Turbcast pulls live NOAA aviation-grade data so you can check the actual forecast for your departure date rather than relying on averages.

What aircraft does UA1700 use?

UA1700 is typically operated by the B763. Aircraft swaps happen - confirm with your booking before flying.

How long is the EWR to SFO flight?

Approximately 5h 17m direct, covering 4,118 km at a typical cruise of FL390.

When does UA1700 have the smoothest weather?

Historically calmest during Late spring to early autumn (May-September). Forecast accuracy improves as you get closer to departure - within 48 hours the NOAA WAFS model is at peak skill.