Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lehigh Valley to Amsterdam as you normally would.
To save up to 53% on this flight, we recommend booking at least 39 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Lehigh Valley to Amsterdam from $552 1-2 weeks out and tickets from $712 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to Amsterdam. Flights to Amsterdam from Lehigh Valley in March are about $472 on average during March, but can be found for as low as $313.