SEA-PHL UA appx $780RT a.i.
 

SEA-PHL-SEA sub $800RT fares that I have seen out into April 2016. United (A) fare. I've seen routings through PHL-SFO-SEA, ZFV-EWR-SEA, PHL-ORD-SEA and PHL-IAH-SEA.


NOTE: I've actually seen it for sub $350 each way on certain dates, so that means sub $700RT fares. Just went searching and saw $685RT for Dec 3 to Jan 6, for instance.

Example:

from
$773

Lowest Fare

Depart:
2:00 p.m.
Wed., Apr. 6, 2016
Philadelphia, PA, US (PHL)
Arrive:
4:36 p.m.
Wed., Apr. 6, 2016
Houston, TX, US (IAH - Intercontinental)


Flight: UA1652
Aircraft: Boeing 737-800
Fare Class: United First (A)


Change Planes. Connect time in Houston, TX, US (IAH - Intercontinental) is 59 minutes.
Depart:
5:35 p.m.
Wed., Apr. 6, 2016
Houston, TX, US (IAH - Intercontinental)
Arrive:
8:20 p.m.
Wed., Apr. 6, 2016
Seattle, WA, US (SEA)


Flight: UA1977
Aircraft: Boeing 737-800
Fare Class: United First (A)