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 agoSeptember 2026
Mon
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Great Availability
78% of dates checked are available within 10% of the lowest price
Sunday, September 20th, 2026
Outbound Flights
5h 20m·Nonstop
$165 USD
SEASep 20 21:30
→PHLSep 21 05:50
DL 1114Airbus A321neo
7h 49m·1 stop
$359 USDSEASep 20 07:20
→ATLSep 20 15:03
DL 562Boeing 757
1h 4m layover
ATLSep 20 16:07
→PHLSep 20 18:09
DL 1329Airbus A321
6h 42m·1 stop
$359 USDSEASep 20 23:05
→DTWSep 21 06:28
DL 810Airbus A321neo
42m layover
DTWSep 21 07:10
→PHLSep 21 08:47
DL 2968Boeing 717
7h 32m·1 stop
$419 USDSEASep 20 06:00
→DTWSep 20 13:20
DL 812Boeing 737
1h 29m layover
DTWSep 20 14:49
→PHLSep 20 16:32
DL 1391Boeing 717
7h 29m·1 stop
$419 USDSEASep 20 07:15
→SLCSep 20 10:28
DL 2858Airbus A321neo
52m layover
SLCSep 20 11:20
→PHLSep 20 17:44
DL 2022Boeing 737
10h 24m·1 stop
$419 USDSEASep 20 09:00
→ATLSep 20 16:34
DL 560Boeing 757
3h 48m layover
ATLSep 20 20:22
→PHLSep 20 22:24
DL 1174Airbus A321
7h 48m·1 stop
$529 USDSEASep 20 23:59
→MSPSep 21 05:16
DL 953Boeing 757
1h 54m layover
MSPSep 21 07:10
→PHLSep 21 10:47
DL 2688Airbus A220-100 Passenger