United Airlines IAD LIS UA942
United Airlines · Live forecast
IAD → LIS
UA942 · Mar 16, 2026 · 23:05
81
Calm Score
"A smooth ride ahead — sit back and enjoy."
11h 10m
Duration
3,113 nm
Distance
39,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth Light Moderate Severe
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We know turbulence can feel scary — especially on long flights. This report is built for you: what bumps feel like, when they happen, and why you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying IAD → LIS
15 pilot reports along this route
13 / 15
Reporting smooth
1 / 15
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
IAD UA /OV AML350020/TM 0041/FL020/TP TBM8/SK BASES 025 BKN
7m ago
Smooth
ARP GAF853 4501N05504W 0041 F350 SUPRY 0056 4600N05000W MS58 292/108 KT 1502 DDL YYT 160041 J27A
7m ago
Smooth
ARP ITY619 4508N05422W 0039 F390 SUPRY 0051 4600N05000W MS59 295/118 KT EITYG QXT AME 160040 J57A
9m ago
Smooth
ARP ITY615 4510N05430W 0039 F380 SUPRY 0051 4600N05000W MS64 288/134 KT EIHJR QXT AME 160040 J47A
9m ago
Smooth
IAD UA /OV RWY 19C/TM 0037/FLDURD/TP E145/SK OVC 025/WX 10SM
11m ago
AI-powered flight briefing
11,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 11,000 data points along your route from Washington Dulles International Airport, Dulles to Lisbon Humberto Delgado Airport, Lisbon.

Your Journey Beta

17 minutes and 34 minutes into the flight: Some moderate bumps expected.
The crew may adjust altitude or ask you to stay seated during these sections.
The rest of the flight should be smooth.

Your route takes you over the Appalachian Mountains and crossing the North Atlantic Ocean – these areas can sometimes cause light turbulence.

Smooth Flight

We're expecting smooth conditions throughout your flight. You can sit back and relax.

Takeoff

Takeoff should feel a bit bumpy initially, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 69 knots. These winds are favorable and may get you there up to 47 minutes early.

Landing

Landing should feel smooth with possible light bumps with typical approach conditions.

You're in Safe Hands

If you feel nervous at any point, remember that turbulence is expected, safe, and part of normal flying. The crew is monitoring everything, and the aircraft is built to handle far more than anything you will feel. Have a safe and calm flight.

Relaxation Exercises
ZeroTurb Index (ZTI): Powered by our turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity. Learn more
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 11h 10min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:29
Light
1:29-1:58
Light
1:58-2:27
Light
2:27-2:56
Light
2:56-3:25
Light
3:25-3:54
Light
3:54-4:23
Light
4:23-4:52
Light
4:52-5:21
Light
5:21-5:50
Light
5:50-6:19
Light
6:19-6:48
Light
6:48-7:17
Light
7:17-7:46
Light
7:46-8:15
Light
8:15-8:44
Light
8:44-9:13
Light
9:13-9:42
Smooth
9:42-10:11
Light
10:11-10:40
Light
Landing
Smooth
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Airport conditions
Live weather at departure and arrival
IAD Washington Dulles International Airport — Departure
Wind
18 kt G34 (220°)
Sky
Overcast
Temperature
13°C
Conditions
VFR — Clear conditions, no delays expected
LIS Lisbon Humberto Delgado Airport — Arrival
Wind
7 kt (60°)
Sky
NSC
Temperature
13°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Today
Data sources & our approach
ZeroTurb's Custom Algorithm: Our proprietary ZeroTurb Index (ZTI) combines three meteorological indices weighted by their predictive accuracy — giving you transparent, passenger-focused turbulence probability instead of vague categories.

This forecast integrates data from:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.