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

Wednesday, August 5th, 2026

Outbound Flights

5h 20m·Nonstop
$239 USD
Delta Air Lines
SEAAug 5 21:30
→
PHLAug 6 05:50
DL 1114Airbus A321neo
9h 2m·1 stop
$369 USD
Delta Air Lines
SEAAug 5 05:45
→
SLCAug 5 08:46
DL 1128Airbus A321neo
2h 42m layover
Delta Air Lines
SLCAug 5 11:28
→
PHLAug 5 17:47
DL 2022Boeing 737
8h 54m·1 stop
$369 USD
Delta Air Lines
SEAAug 5 06:05
→
MSPAug 5 11:25
DL 943Airbus A321
2h 55m layover
Delta Air Lines
MSPAug 5 14:20
→
PHLAug 5 17:59
DL 2594Airbus A220-300 Passenger
8h 6m·1 stop
$369 USD
Delta Air Lines
SEAAug 5 23:59
→
ATLAug 6 07:47
DL 652Airbus A321neo
1h 13m layover
Delta Air Lines
ATLAug 6 09:00
→
PHLAug 6 11:05
DL 2270Airbus A321
8h 46m·1 stop
$419 USD
Delta Air Lines
SEAAug 5 11:56
→
ATLAug 5 20:01
DL 554Boeing 757
1h 29m layover
Delta Air Lines
ATLAug 5 21:30
→
PHLAug 5 23:42
DL 2642Airbus A321
7h 32m·1 stop
$529 USD
Delta Air Lines
SEAAug 5 07:15
→
SLCAug 5 10:26
DL 2858Airbus A321neo
1h 2m layover
Delta Air Lines
SLCAug 5 11:28
→
PHLAug 5 17:47
DL 2022Boeing 737
7h 48m·1 stop
$529 USD
Delta Air Lines
SEAAug 5 09:10
→
ATLAug 5 17:01
DL 797Boeing 757
44m layover
Delta Air Lines
ATLAug 5 17:45
→
PHLAug 5 19:58
DL 1329Airbus A321
6h 26m·1 stop
$684 USD
Delta Air Lines
SEAAug 5 14:30
→
MSPAug 5 19:54
DL 942Boeing 757
31m layover
Delta Air Lines
MSPAug 5 20:25
→
PHLAug 5 23:56
DL 2703Boeing 737
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