Travel in this summer window is available from mid-July with departures open through the end of August, returns into September possible. Seats are available departing PHL on Sunday through Wednesdays, returns from AMS available Tuesday through Fridays.
As an example, I found this price available departing Philadelphia PHL on Sunday, August 4, returning from Amsterdam AMS on Thursday, August 15, 2019.
This Basic Economy fare includes a carry-on bag plus a small personal item. A checked bag costs $60 each way.
Seats will be assigned at random upon check-in for this price. You may pay a fee to choose a specific seat.
A Main Cabin Economy fare is $657 roundtrip, which includes one free checked bag, advanced seat assignments, and allows ticket changes/upgrades for a fee.
Related: How to Fly Delta Air Lines
See our fare details for booking info.
Need a room in Amsterdam? Here's what's available for the mentioned dates on Hotelwatchdog.