Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal in economy from $165

Delta Air LinesDLDelta Air Lines
One Way•Economy
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$212 USD
-22%$165 USD
Verified 14 days ago
Great Availability
74% of dates checked are available within 10% of the lowest price

Saturday, July 25th, 2026

Outbound Flights

5h 56m·Nonstop
$309 USD
Delta Air Lines
PHLJul 25 07:05
→
SEAJul 25 10:01
DL 2092Airbus A321neo
8h 40m·1 stop
$319 USD
Delta Air Lines
PHLJul 25 13:25
→
ATLJul 25 15:31
DL 2279Boeing 737
1h 14m layover
Delta Air Lines
ATLJul 25 16:45
→
SEAJul 25 19:05
DL 472Boeing 757
9h 53m·1 stop
$339 USD
Delta Air Lines
PHLJul 25 17:06
→
ATLJul 25 19:19
DL 1692Airbus A321
2h 16m layover
Delta Air Lines
ATLJul 25 21:35
→
SEAJul 25 23:59
DL 903Boeing 737
9h 20m·1 stop
$419 USD
Delta Air Lines
PHLJul 25 07:15
→
ATLJul 25 09:17
DL 1152Airbus A321
1h 53m layover
Delta Air Lines
ATLJul 25 11:10
→
SEAJul 25 13:35
DL 648Airbus A321neo
8h 10m·1 stop
$529 USD
Delta Air Lines
PHLJul 25 15:38
→
MSPJul 25 17:37
DL 2679Airbus A220-100 Passenger
1h 18m layover
Delta Air Lines
MSPJul 25 18:55
→
SEAJul 25 20:48
DL 881Boeing 737
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