Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal in economy from $133
PHLPhiladelphia International Airport
Philadelphia, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$210 USD
-37%$133 USD
Verified about 22 hours agoOctober 2026
Mon
Tue
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Sun
Limited Availability
13% of dates checked are available within 10% of the lowest price
Wednesday, October 21st, 2026
Outbound Flights
8h 17m·1 stop
$137 USD
PHLOct 21 06:10
→ORDOct 21 07:35
UA 660Boeing 737
1h 10m layover
ORDOct 21 08:45
→SEAOct 21 11:27
UA 2099Airbus A321neo
8h 10m·1 stop
$137 USDPHLOct 21 10:30
→IADOct 21 11:43
UA 6235Embraer 175
1h 12m layover
IADOct 21 12:55
→SEAOct 21 15:40
UA 1824Boeing 737MAX 9 Passenger
9h 29m·1 stop
$137 USDPHLOct 21 18:36
→SFOOct 21 21:39
UA 1575Boeing 737MAX 9 Passenger
56m layover
SFOOct 21 22:35
→SEAOct 22 01:05
UA 5579Embraer 175
8h 27m·1 stop
$206 USDPHLOct 21 15:48
→DENOct 21 17:54
UA 2644Boeing 737MAX 9 Passenger
1h 20m layover
DENOct 21 19:14
→SEAOct 21 21:15
UA 360Airbus A321neo
8h 48m·1 stop
$213 USDPHLOct 21 17:08
→ORDOct 21 18:38
UA 308Boeing 737
1h 34m layover
ORDOct 21 20:12
→SEAOct 21 22:56
UA 2211Boeing 737MAX 9 Passenger
8h 28m·1 stop
$224 USDPHLOct 21 13:24
→ORDOct 21 14:50
UA 2784Airbus A320
1h 15m layover
ORDOct 21 16:05
→SEAOct 21 18:52
UA 1801Airbus A321neo
8h 19m·1 stop
$247 USDPHLOct 21 15:05
→IADOct 21 16:16
UA 4584Bombardier Regional Jet 550
1h 17m layover
IADOct 21 17:33
→SEAOct 21 20:24
UA 1128Boeing 737MAX 9 Passenger
17h 41m·1 stop
$357 USDPHLOct 21 18:55
→ORDOct 21 20:25
UA 2665Airbus A320
10h 35m layover·Overnight
ORDOct 22 07:00
→SEAOct 22 09:36
UA 341Boeing 737