For route searches including those involving air flights, you need to specify how many minutes before your departure time you want to arrive at the airport in the “Airport Arrival Time”*.
We will search for a route that will get you to the airport before the number of minutes you have set.
*The “Airport Arrival Time” can be set at one’s discretion. Please check the airline’s website and other sources of information as the cutoff time for arrival at security checkpoints, etc. varies by airline and airport. Please also note that you may not be able to board your flight after the boarding cutoff time.