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

Sunday, July 12th, 2026

Outbound Flights

5h 56m·Nonstop
$309 USD
Delta Air Lines
PHLJul 12 07:05
→
SEAJul 12 10:01
DL 2092Airbus A321neo
8h 39m·1 stop
$319 USD
Delta Air Lines
PHLJul 12 14:32
→
ATLJul 12 16:40
DL 2279Airbus A321
1h 10m layover
Delta Air Lines
ATLJul 12 17:50
→
SEAJul 12 20:11
DL 714Boeing 757
8h 4m·1 stop
$319 USD
Delta Air Lines
PHLJul 12 18:55
→
SLCJul 12 21:45
DL 2022Boeing 737
1h layover
Delta Air Lines
SLCJul 12 22:45
→
SEAJul 12 23:59
DL 2998Boeing 737
11h 25m·1 stop
$319 USD
Delta Air Lines
PHLJul 12 10:40
→
ATLJul 12 12:49
DL 1100Airbus A321
3h 56m layover
Delta Air Lines
ATLJul 12 16:45
→
SEAJul 12 19:05
DL 472Boeing 757
8h 5m·1 stop
$339 USD
Delta Air Lines
PHLJul 12 17:28
→
DTWJul 12 19:15
DL 1391Boeing 717
1h 19m layover
Delta Air Lines
DTWJul 12 20:34
→
SEAJul 12 22:33
DL 565Boeing 757
8h 30m·1 stop
$369 USD
Delta Air Lines
PHLJul 12 08:05
→
ATLJul 12 10:11
DL 1180Airbus A321
59m layover
Delta Air Lines
ATLJul 12 11:10
→
SEAJul 12 13:35
DL 648Airbus A321neo
10h 3m·1 stop
$369 USD
Delta Air Lines
PHLJul 12 12:02
→
ATLJul 12 14:05
DL 2270Airbus A321
2h 40m layover
Delta Air Lines
ATLJul 12 16:45
→
SEAJul 12 19:05
DL 472Boeing 757
8h 40m·1 stop
$369 USD
Delta Air Lines
PHLJul 12 16:08
→
ATLJul 12 18:32
DL 2131Airbus A321
50m layover
Delta Air Lines
ATLJul 12 19:22
→
SEAJul 12 21:48
DL 834Airbus A321neo
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