DCA
Ronald Reagan Washington National Airport
✈
STL
St. Louis Lambert International Airport
Distance
623 nm
Altitude
30,000 ft
Est. Duration
1h 59m
Route Information
Departure

DCA (DCA)

Distance

1,154.4 km (623.3 nautical miles)

Arrival

STL (STL)

Estimated Flight Time

119 minutes (1h 59m)

Flight Profile

Cruise Altitude: 30,000 ft (Flight Level 300)

Route calculated using great circle navigation

Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth Light Moderate Severe
💙
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 they don't put the aircraft in danger. Many passengers feel exactly the same way.
Right now on your route
Live pilot reports from aircraft flying DCA → STL
4 pilot reports along this route
1 / 4
Reporting smooth
2 / 4
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
BMG UA /OV OOM100010/TM 0104/FL380/TP B752/TB NEG
11m ago
Light
LOZ UA /OV AZQ045035/TM 0102/FL290/TP E170/TB CONS LGT CHOP
13m ago
Light
BKW UA /OV BKW260020/TM 0057/FL390/TP B738/TB OCNL LGT
18m ago
Moderate
FAM UA /OV FAM360040/TM 0054/FL190/TP B737/TB MOD190 LGT CHOP 250/RM ZKCFDC DL
21m ago
AI-powered flight briefing
2,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 2,500 data points along your route from Ronald Reagan Washington National Airport, Washington to St. Louis Lambert International Airport, St Louis.

Your Journey Beta

A brief bumpy patch may occur during cruise. It's nothing to worry about - just keep your seatbelt fastened.

Your route takes you over the Appalachian Mountains – conditions there 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 30 knots.

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 1h 59min
Maximum turbulence expected per segment
Takeoff
Moderate
0:20-0:47
Light
0:47-1:13
Light
1:13-1:39
Smooth
Landing
Light
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
DCA Ronald Reagan Washington National Airport - Departure
Wind
0 kt (0°)
Sky
Scattered
Temperature
29°C
Conditions
VFR - Clear conditions, no delays expected
STL St. Louis Lambert International Airport - Arrival
Wind
14 kt G22 (160°)
Sky
Overcast
Temperature
24°C
Conditions
MVFR - Reduced visibility, minor delays possible
Your flight details
Departure timing and aircraft information
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.

Fly this route, calmly Game · Beta A calming mini-game, not a forecast. Glide DCA → STL through soft clouds, nothing to crash into.