Cheap flights from Seattle to Philadelphia for only $162 roundtrip with American Airlines.
Also works in reverse.
DEPART:
Seattle, USA
ARRIVE:
Philadelphia, USA
RETURN:
Seattle, USA
DATES:
Availability from April to May 2021
Seattle – Philadelphia
15th-20th Apr
22nd-26th Apr
22nd-27th Apr
29th Apr – 3rd May
29th Apr – 4th May
6th-10th May
6th-11th May
13th-17th May
13th-18th May
20th-25th May
Philadelphia – Seattle
8th-12th Apr
8th-13th Apr
15th-19th Apr
22nd-26th Apr
29th Apr – 3rd May
6th-10th May
6th-11th May
13th-17th May
20th-25th May
and more…
STOPS:
AIRLINES:
American Airlines