Comparison
Turbli vs Turbcast
Both tools answer the same question: how bumpy will my flight be? Both are free to check, and both are built on NOAA's public turbulence guidance. The differences are in what each layers on top, and how each fits the way you fly.
This page is published by Turbcast. We've written it the way we'd want a comparison of us to be written: where Turbli is genuinely better, we say so. Spot an error about Turbli? Email info@turbcast.com and we'll correct it.
The short version
Turbli is the most polished quick route check: type origin and destination, get a clear severity score. It launched in 2020, it's free, and it's the tool travel journalists reach for. Turbcast is built for one flight in particular - yours: look it up by flight number, see a segment-by-segment breakdown at your actual cruise level, and optionally get a briefing series before departure that we grade against real pilot reports after you land.
At a glance
| Turbli | Turbcast | |
|---|---|---|
| Price | Free | Free · optional $9.99 one-time briefing series |
| Search by | Origin + destination + date | Flight number (e.g. BA9) or route + date |
| Forecast detail | One composite severity score per route | Segment-by-segment breakdown, hour by hour, at your flight's cruise level |
| US flights | NOAA guidance | NOAA GTG 4.0 directly - the operational model US dispatchers use |
| Everywhere else | NOAA guidance | Physics-based modelling (Ellrod, Richardson, convective) computed from NOAA GFS upper-air data |
| Live pilot reports | Not surfaced per flight | Layered onto your route, and shown |
| Pre-departure updates | Check back manually | Optional emailed PDF briefings: 48h to 30 min before takeoff, each highlighting what changed |
| Accuracy accountability | Not published per flight | Every paid briefing is graded against real pilot reports after landing - including the misses |
| Signup required | No | No |
| Founded | 2020 | 2024 |
Where Turbli is better
- Maturity and recognition. Four more years of polish, a bigger brand, and the default citation in travel media. If you want the tool most people have heard of, that's Turbli.
- Simplicity. One clean severity score is easier to read at a glance than a segment table. If you want a fast yes/no, Turbli's presentation is excellent.
Where Turbcast is better
- It knows your actual flight. Type a flight number and get the real route, schedule, and cruise level - not a generic city pair.
- Detail where it matters. A route is rarely uniformly bumpy. The segment breakdown shows when in the flight the bumps sit and how long they last - which, for an anxious flyer, is most of the comfort.
- The US operational model. For US flights Turbcast runs directly on NOAA GTG 4.0, the hourly 3 km model calibrated against pilot reports that US aviation actually uses.
- It checks its own work. After every paid flight, the forecast is graded against the pilot reports filed along the route, and the result goes to the customer - hits and misses alike. No other consumer turbulence tool does this.
Which should you use?
Use Turbli if you only know your city pair and want a quick, well-presented severity read - it's good at exactly that.
Use Turbcast if you know your flight number, want to see where in the flight the bumps are, or want briefings that keep updating until takeoff. And if you're checking because flying makes you nervous: the forecast comes with the context that turbulence is uncomfortable, not dangerous - and a plain-English explainer on why.
Honestly? Check both. They're free. If they agree, fly relaxed. If they disagree, Turbcast's segment view will usually show you why.
Want the wider landscape? Read the full five-tool comparison or our honest accuracy breakdown. Facts about Turbli current as of July 2026.