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

Delta Air LinesDLDelta Air Lines
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
$201 USD
-18%$165 USD
Verified 13 days ago
Great Availability
78% of dates checked are available within 10% of the lowest price

Friday, August 28th, 2026

Outbound Flights

5h 20m·Nonstop
$165 USD
Delta Air Lines
SEAAug 28 21:30
→
PHLAug 29 05:50
DL 1114Airbus A321neo
6h 26m·1 stop
$175 USD
Delta Air Lines
SEAAug 28 23:10
→
DTWAug 29 06:23
DL 810Boeing 737
37m layover
Delta Air Lines
DTWAug 29 07:00
→
PHLAug 29 08:36
DL 2968Airbus A319
7h 32m·1 stop
$175 USD
Delta Air Lines
SEAAug 28 07:15
→
SLCAug 28 10:26
DL 2858Airbus A321neo
1h 2m layover
Delta Air Lines
SLCAug 28 11:28
→
PHLAug 28 17:47
DL 2022Boeing 737
9h 8m·1 stop
$175 USD
Delta Air Lines
SEAAug 28 11:18
→
DTWAug 28 18:35
DL 1706Boeing 757
3h 10m layover
Delta Air Lines
DTWAug 28 21:45
→
PHLAug 28 23:26
DL 2402Boeing 717
8h 3m·1 stop
$299 USD
Delta Air Lines
SEAAug 28 05:30
→
DTWAug 28 12:42
DL 812Boeing 757
2h 9m layover
Delta Air Lines
DTWAug 28 14:51
→
PHLAug 28 16:33
DL 1391Boeing 717
6h 26m·1 stop
$299 USD
Delta Air Lines
SEAAug 28 14:30
→
MSPAug 28 19:54
DL 942Boeing 757
31m layover
Delta Air Lines
MSPAug 28 20:25
→
PHLAug 28 23:56
DL 2703Boeing 737
9h 45m·1 stop
$529 USD
Delta Air Lines
SEAAug 28 23:59
→
ATLAug 29 07:47
DL 652Airbus A321neo
2h 46m layover
Delta Air Lines
ATLAug 29 10:33
→
PHLAug 29 12:44
DL 2279Airbus A321
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