As an example, I found this price available departing Philadelphia PHL on Wednesday, February 5, returning from Tokyo HND on Friday, February 21, 2020.
Depart Sunday through Thursday, return Monday through Friday. A 7-day minimum stay is required and peak holiday dates are blacked out.
These fares include standard carry-on baggage and two pieces of checked luggage.
Standard seat selection is not included with these fares.
Flights on Delta and American are available for about $45 more between these two airports totaling around $553 roundtrip if you prefer to fly with them.
See our fare details for booking info.
For more discount fares departing the City of Brotherly Love, have a look at our Philadelphia (PHL) flight deals page.
Need a hotel in Tokyo? Here's what's available for the mentioned dates on Hotelwatchdog.