To take benefit of these prices you will need to prove you are not a business traveller, on the way to edinburgh airport, so you will need to give either your flight numbers or your holiday booking reference. I don't think you will need to give this when you arrive at the station but you may be asked to provide them on yr journey from the station to the airport.
Going to edinburgh airport by train is great, you can take a nap, read a book (even at night), play a game, or just gaze out of the window... The other caveat to buying these inexpensive tickets from the station to edinburgh airport is that there must be at least two grown ups travelling together. But another great advantage is that children go free. All kids under five go free, and then one kidover 5 but under sixteen per adult travelling on the train to edinburgh airport.
make sure you leave plenty of time to get to the airport early enough to eat, shop and so on, so check the times of trains from the station before you go. If you end up with time to kill at the airport you can always read a book or play travel scrabble again! As you have bought yr ticket in advance, you don't need to fret about the opening hours of the station.
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