Seattle / Tacoma (SEA) to Lisbon (LIS) flight deal in economy from $380
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$527 USD
-28%$380 USD
Verified 14 days agoAugust 2026
Mon
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Sunday, August 23rd, 2026
Outbound Flights
20h 15m·1 stop
$797 USD
SEAAug 23 13:30
→LHRAug 24 06:45
BA 52Boeing 787-10
8h 5m layover
LHRAug 24 14:50
→LISAug 24 17:45
BA 506Airbus A320
18h 45m·1 stop
$797 USDSEAAug 23 20:20
→LHRAug 24 13:45
BA 48Boeing 777
6h 30m layover
LHRAug 24 20:15
→LISAug 24 23:05
BA 508Airbus A320
18h 55m·1 stop
$798 USDSEAAug 23 13:30
→LHRAug 24 06:45
BA 52Boeing 787-10
6h 45m layover
LHRAug 24 13:30
→LISAug 24 16:25
BA 504Airbus A319
16h 55m·1 stop
$805 USD
SEAAug 23 08:10
→PHLAug 23 16:32
AA 986Airbus A321
4h 33m layover
PHLAug 23 21:05
→LISAug 24 09:05
AA 258Boeing 787
15h·2 stops
$805 USD
SEAAug 23 10:05
→CVGAug 23 17:39
AS 451Boeing 737
53m layover
CVGAug 23 18:32
→PHLAug 23 20:20
AA 5515Canadair RJ 900
45m layover
PHLAug 23 21:05
→LISAug 24 09:05
AA 258Boeing 787
19h 5m·2 stops
$812 USDSEAAug 23 20:20
→LHRAug 24 13:45
BA 48Boeing 777
3h 25m layover
LHRAug 24 17:10
→MADAug 24 20:35
IB 720Airbus A320
2h 25m layover
MADAug 24 23:00
→LISAug 24 23:25
IB 539Airbus A320
26h 37m·1 stop
$828 USDSEAAug 23 22:28
→PHLAug 24 06:40
AA 2886Airbus A321
14h 25m layover
PHLAug 24 21:05
→LISAug 25 09:05
AA 258Boeing 787
18h 35m·2 stops
$1,079 USDSEAAug 23 13:30
→LHRAug 24 06:45
BA 52Boeing 787-10
2h 30m layover
LHRAug 24 09:15
→MADAug 24 12:40
IB 712Airbus A320
3h layover
MADAug 24 15:40
→LISAug 24 16:05
IB 1143Canadair RJ 1000
18h 35m·2 stops
$1,079 USDSEAAug 23 13:30
→LHRAug 24 06:45
BA 52Boeing 787-10
4h 5m layover
LHRAug 24 10:50
→MADAug 24 14:15
IB 714Airbus A320
1h 25m layover
MADAug 24 15:40
→LISAug 24 16:05
IB 1143Canadair RJ 1000