Hey HN, If you’ve been lucky enough to be on a flight with Starlink, you understand the hype. It actually works!<p>However, its availability on flights is patchy and hard to predict. So we built a database of all airlines that have rolled out Starlink (beyond just a trial), and a flight search tool to predict it. Plug in a flight number and date, and we'll estimate the likelihood of Starlink on-board based on aircraft type and tail number.<p>If you don’t have any trips coming up, you can also look up specific routes to see what flights offer Starlink. You can find it here: https://stardrift.ai/starlink .<p>-<p>I wanted to add a few notes on how this works too. There are three things we check, in order, when we answer a query:<p>- Does this airline have Starlink?<p>- Does this aircraft body have Starlink?<p>- Does this specific aircraft have Starlink?<p>Only a few airlines at all have Starlink right now: United, Hawaiian, Alaskan, Air France, Qatar, JSX, and a handful of others. So if an aircraft is operated by any other airline, we can issue a blanket no immediately.<p>Then, we check the actual body that's flying on the plane. Airlines usually publish equipment assignments in advance, and they're also rolling out Starlink body-by-body. So we know, for instance, that all JSX E145s have Starlink and that none of Air France's A320s have Starlink. (You can see a summary of our data at https://stardrift.ai/starlink/fleet-summary, though the live logic has a few rules not encoded there.)<p>If there's a complete match at the body type level, we can confidently tell you your flight will have Starlink. However, in most cases, the airline has only rolled out a partial upgrade to that aircraft type. In that case, we need to drill down a little more and figure out exactly which plane is flying on your route.<p>We can do this by looking up the 'tail number' (think of it as a license plate for the plane). Unfortunately, the tail number is usually only assigned a few days before a flight. So, before that, the best we can do is calculate the probability that your plane will be assigned an aircraft with Starlink enabled.<p>To do this, we had to build a mapping of aircraft tails to Starlink status. Here, I have to thank online airline enthusiasts who maintain meticulous spreadsheets and forum threads to track this data! As I understand it, they usually get this data from airline staff who are enthusiastic about Starlink rollouts, so it's a reliable, frequently updated source. Most of our work was finding each source, normalizing their formats, building a reliable & responsible system to pull them in, and then tying them together with our other data sources.<p>Basically, it's a data normalization problem! I used to work on financial data systems and I was surprised how similar this problem was.<p>-<p>Starlink itself is also a pretty cool technology. I also wrote a blog post (https://stardrift.ai/blog/why-is-starlink-so-good) on why it's so much better than all the other aircraft wifi options out there. At a high level, it's only possible because rocket launches are so cheap nowadays, which is incredibly cool.<p>The performance is great, so it's well worth planning your flights around it where possible. Right now, your best bet in the US is on United regional flights and JSX/Hawaiian. Internationally, Qatar is the best option (though obviously not right now), with Air France a distance second. This will change throughout the year as more airlines roll it out though, and we'll keep our database updated!