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

Tuesday, July 28th, 2026

Outbound Flights

13h 35m·1 stop
$640 USD
British Airways
SEAJul 28 20:20
→
LHRJul 29 13:45
BA 48Boeing 777
1h 15m layover
British Airways
LHRJul 29 15:00
→
LISJul 29 17:55
BA 506Airbus A320neo
17h·1 stop
$640 USD
British Airways
SEAJul 28 13:30
→
LHRJul 29 06:45
BA 52Boeing 787-10
4h 50m layover
British Airways
LHRJul 29 11:35
→
LISJul 29 14:30
BA 502Airbus A320
18h 5m·1 stop
$640 USD
British Airways
SEAJul 28 13:30
→
LHRJul 29 06:45
BA 52Boeing 787-10
5h 55m layover
British Airways
LHRJul 29 12:40
→
LISJul 29 15:35
BA 504Airbus A321neo
16h 45m·1 stop
$647 USD
American Airlines
SEAJul 28 08:20
→
PHLJul 28 16:42
AA 3219Airbus A321
4h 23m layover
American Airlines
PHLJul 28 21:05
→
LISJul 29 09:05
AA 258Boeing 787
15h 24m·2 stops
$647 USD
Alaska Airlines, Inc.
SEAJul 28 09:41
→
CMHJul 28 17:09
AS 450Boeing 737
1h 5m layover
American Airlines
CMHJul 28 18:14
→
PHLJul 28 19:57
AA 2397Airbus A319
1h 8m layover
American Airlines
PHLJul 28 21:05
→
LISJul 29 09:05
AA 258Boeing 787
26h 30m·1 stop
$667 USD
American Airlines
SEAJul 28 22:35
→
PHLJul 29 06:48
AA 2522Airbus A321
14h 17m layover
American Airlines
PHLJul 29 21:05
→
LISJul 30 09:05
AA 258Boeing 787
19h 55m·2 stops
$728 USD
American Airlines
SEAJul 28 11:40
→
DFWJul 28 17:50
AA 767Airbus A321
1h 50m layover
British Airways
DFWJul 28 19:40
→
LHRJul 29 10:55
BA 192Airbus A380
1h 45m layover
British Airways
LHRJul 29 12:40
→
LISJul 29 15:35
BA 504Airbus A321neo
18h 25m·1 stop
$752 USD
Aer Lingus
SEAJul 28 19:10
→
DUBJul 29 12:15
EI 52Airbus A330
6h 25m layover
Aer Lingus
DUBJul 29 18:40
→
LISJul 29 21:35
EI 486Airbus A320
19h 5m·2 stops
$891 USD
British Airways
SEAJul 28 20:20
→
LHRJul 29 13:45
BA 48Boeing 777
2h 5m layover
Iberia Airlines
LHRJul 29 15:50
→
MADJul 29 19:15
IB 718Airbus A320
3h 45m layover
Iberia Airlines
MADJul 29 23:00
→
LISJul 29 23:25
IB 539Airbus A321
17h 56m·2 stops
$1,811 USD
American Airlines
SEAJul 28 14:09
→
ORDJul 28 20:45
AA 2520Boeing 737MAX 8 Passenger
1h 45m layover
American Airlines
ORDJul 28 22:30
→
MADJul 29 13:30
AA 126Boeing 787
2h 10m layover
Iberia Airlines
MADJul 29 15:40
→
LISJul 29 16:05
IB 1143Canadair RJ 1000
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