Type the name of your starting airport, or where you're flying from (e.g. London Heathrow) in the "Flying from" text box. After you've typed a few characters, you can use the drop down menu to select your airport from the dynamic list
Type the name of your starting airport, or where you're flying to. (e.g. Minneapolis/St Paul) in "Flying to" the text box
How many of you are flying? Choose the number of people who are on the trip with you. If you're flying alone, it is just 1.
Is it a return flight? Or are you flying one way? Obviously this will have a big impact on the emissions.
When are you flying? Click the text box to launch the calendar and select the date you're flying, not the date you're flying back if it is a return flight.
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