Seattle / Tacoma (SEA) to Lisbon (LIS) flight deal in economy from $380

American AirlinesAAAmerican AirlinesFinnairAYFinnairBritish AirwaysBABritish AirwaysIberia AirlinesIBIberia Airlines
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
PortugalLIS

Portela Airport

Lisbon, Portugal
$527 USD
-28%$380 USD
Verified 14 days ago
Fair Availability
30% of dates checked are available within 10% of the lowest price

Wednesday, August 26th, 2026

Outbound Flights

16h 40m·1 stop
$797 USD
British Airways
SEAAug 26 13:30
→
LHRAug 27 06:45
BA 52Boeing 787-10
4h 30m layover
British Airways
LHRAug 27 11:15
→
LISAug 27 14:10
BA 502Airbus A320neo
18h 10m·1 stop
$797 USD
British Airways
SEAAug 26 13:30
→
LHRAug 27 06:45
BA 52Boeing 787-10
6h layover
British Airways
LHRAug 27 12:45
→
LISAug 27 15:40
BA 504Airbus A321neo
18h 55m·1 stop
$797 USD
British Airways
SEAAug 26 20:20
→
LHRAug 27 13:45
BA 48Boeing 777
6h 40m layover
British Airways
LHRAug 27 20:25
→
LISAug 27 23:15
BA 508Airbus A320neo
16h 55m·1 stop
$805 USD
American Airlines
SEAAug 26 08:10
→
PHLAug 26 16:32
AA 986Airbus A321
4h 33m layover
American Airlines
PHLAug 26 21:05
→
LISAug 27 09:05
AA 258Boeing 787
15h·2 stops
$805 USD
Alaska Airlines, Inc.
SEAAug 26 10:05
→
CVGAug 26 17:39
AS 451Boeing 737
53m layover
American Airlines
CVGAug 26 18:32
→
PHLAug 26 20:20
AA 5515Canadair RJ 900
45m layover
American Airlines
PHLAug 26 21:05
→
LISAug 27 09:05
AA 258Boeing 787
19h 5m·2 stops
$812 USD
British Airways
SEAAug 26 20:20
→
LHRAug 27 13:45
BA 48Boeing 777
2h 5m layover
Iberia Airlines
LHRAug 27 15:50
→
MADAug 27 19:15
IB 718Airbus A320
3h 45m layover
Iberia Airlines
MADAug 27 23:00
→
LISAug 27 23:25
IB 539Airbus A321
27h 7m·1 stop
$900 USD
American Airlines
SEAAug 26 21:58
→
PHLAug 27 06:16
AA 2886Airbus A321
14h 49m layover
American Airlines
PHLAug 27 21:05
→
LISAug 28 09:05
AA 258Boeing 787
19h 17m·2 stops
$923 USD
Alaska Airlines, Inc.
SEAAug 26 08:33
→
ORDAug 26 14:47
AS 265Boeing 737
2h 8m layover
Iberia Airlines
ORDAug 26 16:55
→
MADAug 27 08:20
IB 342Airbus A330
3h 5m layover
Iberia Airlines
MADAug 27 11:25
→
LISAug 27 11:50
IB 531Airbus A319
18h 35m·2 stops
$975 USD
British Airways
SEAAug 26 13:30
→
LHRAug 27 06:45
BA 52Boeing 787-10
2h 30m layover
Iberia Airlines
LHRAug 27 09:15
→
MADAug 27 12:40
IB 712Airbus A320
3h layover
Iberia Airlines
MADAug 27 15:40
→
LISAug 27 16:05
IB 1143Canadair RJ 1000
17h 58m·2 stops
$1,877 USD
American Airlines
SEAAug 26 14:07
→
DFWAug 26 20:13
AA 717Airbus A321
1h 32m layover
Iberia Airlines
DFWAug 26 21:45
→
MADAug 27 14:25
IB 364Airbus A330
1h 15m layover
Iberia Airlines
MADAug 27 15:40
→
LISAug 27 16:05
IB 1143Canadair RJ 1000
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