About KnowDelay
No Surprise. KnowDelay.
KnowDelay was founded on a simple idea: predicting weather-related flight delays before they happen. Whether you're a pilot, flight attendant or an everyday traveler, knowing what’s ahead can help you make smarter decisions, avoid unnecessary frustration, and uncover new opportunities. That’s why our goal is simple… No Surprise. KnowDelay.
Our team of pilots, aviation experts, academics, and technologists combines extensive aviation and meteorological knowledge with proprietary weather models and cutting-edge technology to predict flight delays and identify options
Whether you're a pilot of flight attendant looking to maximize earning opportunities, or commuting to work, or a passenger traveling for business or pleasure, KnowDelay gives you the information you need to plan ahead, make informed decisions, and stay one step ahead of potential disruptions.
Weather delays may be inevitable, but being caught off guard doesn't have to be. No Surprise. KnowDelay.
Peace of Mind
Be among the first to know about weather delays. And the first to rebook your flight.
Predictions and Options
Our system predicts flight delays up to three days in advance and identifies alternative itineraries to get you there on time!
Know What Pilots Know
Airline pilots use KnowDelay to quickly understand whether they could be delayed.
Regular Updates
Flight updates come straight to your inbox and your phone so you can make necessary changes and stay in control of your travel.
Be Prepared
No more relying on your airline’s rebooking system or endless airport delays. KnowDelay provides alternatives before the delay.
Armed with Alternatives
KnowDelay predicts, you take action! Our paid membership options include KnowDelay’s full suite of tools for an unlimited number of flight itineraries.