Did you know you can use book trains on airline tickets to save money and generate extra mileage and segments?
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I’m sure this won’t be news for most of you, but I discovered this trick by accident. I’d noticed that KLM (KL) imposes a €10 “booking fee” on all online transactions. You can avoid this simply by performing your online booking on Delta (DL) instead as they have codeshare ventures between them.