Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 16% on the overall cost on flights from Appleton to Frankfurt.
To save up to 12% on this flight, we recommend booking at least 29 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Appleton to Frankfurt from $798 1-2 weeks out and tickets from $862 for flights departing within the next 72 hours.