Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $165
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
PHLPhiladelphia International Airport
Philadelphia, United States
$201 USD
-18%$165 USD
Verified 13 days agoOctober 2026
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Great Availability
78% of dates checked are available within 10% of the lowest price
Friday, October 9th, 2026
Outbound Flights
5h 14m·Nonstop
$165 USD
SEAOct 9 21:31
→PHLOct 10 05:45
DL 1114Airbus A321neo
6h 40m·1 stop
$175 USDSEAOct 9 23:05
→DTWOct 10 06:23
DL 810Airbus A321neo
42m layover
DTWOct 10 07:05
→PHLOct 10 08:45
DL 2968Boeing 717
9h 4m·1 stop
$359 USDSEAOct 9 05:35
→SLCOct 9 08:40
DL 1128Airbus A321neo
2h 43m layover
SLCOct 9 11:23
→PHLOct 9 17:39
DL 2022Boeing 737
9h 54m·1 stop
$359 USDSEAOct 9 23:59
→ATLOct 10 07:32
DL 652Airbus A321neo
3h 22m layover
ATLOct 10 10:54
→PHLOct 10 12:53
DL 2279Airbus A321
7h 24m·1 stop
$419 USDSEAOct 9 07:15
→SLCOct 9 10:32
DL 2858Airbus A321neo
51m layover
SLCOct 9 11:23
→PHLOct 9 17:39
DL 2022Boeing 737
7h 9m·1 stop
$529 USDSEAOct 9 13:35
→MSPOct 9 19:03
DL 942Boeing 737
1h 10m layover
MSPOct 9 20:13
→PHLOct 9 23:44
DL 2703Boeing 737
8h 16m·1 stop
$529 USDSEAOct 9 13:40
→ATLOct 9 21:27
DL 542Boeing 737
1h 28m layover
ATLOct 9 22:55
→PHLOct 10 00:56
DL 2642Airbus A321