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, July 22nd, 2026

Outbound Flights

16h 40m·1 stop
$640 USD
British Airways
SEAJul 22 13:30
→
LHRJul 23 06:45
BA 52Boeing 787-10
4h 30m layover
British Airways
LHRJul 23 11:15
→
LISJul 23 14:10
BA 502Airbus A321neo
18h 10m·1 stop
$640 USD
British Airways
SEAJul 22 13:30
→
LHRJul 23 06:45
BA 52Boeing 787-10
6h layover
British Airways
LHRJul 23 12:45
→
LISJul 23 15:40
BA 504Airbus A321neo
18h 55m·1 stop
$640 USD
British Airways
SEAJul 22 20:20
→
LHRJul 23 13:45
BA 48Boeing 777
6h 40m layover
British Airways
LHRJul 23 20:25
→
LISJul 23 23:15
BA 508Airbus A321neo
16h 45m·1 stop
$647 USD
American Airlines
SEAJul 22 08:20
→
PHLJul 22 16:42
AA 3219Airbus A321
4h 23m layover
American Airlines
PHLJul 22 21:05
→
LISJul 23 09:05
AA 258Boeing 787
15h 24m·2 stops
$647 USD
Alaska Airlines, Inc.
SEAJul 22 09:41
→
CMHJul 22 17:09
AS 450Boeing 737
1h 5m layover
American Airlines
CMHJul 22 18:14
→
PHLJul 22 19:57
AA 2397Airbus A319
1h 8m layover
American Airlines
PHLJul 22 21:05
→
LISJul 23 09:05
AA 258Boeing 787
26h 30m·1 stop
$729 USD
American Airlines
SEAJul 22 22:35
→
PHLJul 23 06:48
AA 2522Airbus A321
14h 17m layover
American Airlines
PHLJul 23 21:05
→
LISJul 24 09:05
AA 258Boeing 787
19h 16m·2 stops
$765 USD
Alaska Airlines, Inc.
SEAJul 22 08:34
→
ORDJul 22 14:46
AS 265Boeing 737MAX 8 Passenger
2h 9m layover
Iberia Airlines
ORDJul 22 16:55
→
MADJul 23 08:20
IB 342Airbus A330
3h 5m layover
Iberia Airlines
MADJul 23 11:25
→
LISJul 23 11:50
IB 531Airbus A319
19h 46m·2 stops
$1,817 USD
American Airlines
SEAJul 22 14:09
→
ORDJul 22 20:45
AA 2520Boeing 737MAX 8 Passenger
1h 45m layover
American Airlines
ORDJul 22 22:30
→
LHRJul 23 12:15
AA 98Boeing 787
2h 40m layover
British Airways
LHRJul 23 14:55
→
LISJul 23 17:55
BA 506Airbus A319
18h 35m·2 stops
$1,817 USD
British Airways
SEAJul 22 13:30
→
LHRJul 23 06:45
BA 52Boeing 787-10
2h 30m layover
Iberia Airlines
LHRJul 23 09:15
→
MADJul 23 12:40
IB 712Airbus A320
3h layover
Iberia Airlines
MADJul 23 15:40
→
LISJul 23 16:05
IB 1143Canadair RJ 1000
18h 35m·2 stops
$1,817 USD
British Airways
SEAJul 22 13:30
→
LHRJul 23 06:45
BA 52Boeing 787-10
4h 5m layover
Iberia Airlines
LHRJul 23 10:50
→
MADJul 23 14:15
IB 714Airbus A320
1h 25m layover
Iberia Airlines
MADJul 23 15:40
→
LISJul 23 16:05
IB 1143Canadair RJ 1000
17h 56m·2 stops
$3,457 USD
American Airlines
SEAJul 22 14:09
→
ORDJul 22 20:45
AA 2520Boeing 737MAX 8 Passenger
1h 45m layover
American Airlines
ORDJul 22 22:30
→
MADJul 23 13:30
AA 126Boeing 787
2h 10m layover
Iberia Airlines
MADJul 23 15:40
→
LISJul 23 16:05
IB 1143Canadair RJ 1000
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