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

Friday, December 4th, 2026

Outbound Flights

15h 10m·1 stop
$430 USD
British Airways
SEADec 4 18:45
→
LHRDec 5 12:10
BA 48Boeing 787-10
2h 50m layover
British Airways
LHRDec 5 15:00
→
LISDec 5 17:55
BA 510Airbus A320neo
12h 55m·1 stop
$438 USD
American Airlines
SEADec 4 12:10
→
PHLDec 4 20:17
AA 467Airbus A321
1h 8m layover
American Airlines
PHLDec 4 21:25
→
LISDec 5 09:05
AA 258Boeing 787
17h 20m·2 stops
$444 USD
British Airways
SEADec 4 18:45
→
LHRDec 5 12:10
BA 48Boeing 787-10
2h 55m layover
British Airways
LHRDec 5 15:05
→
MADDec 5 18:35
BA 466Airbus A320neo
1h 5m layover
Iberia Airlines
MADDec 5 19:40
→
LISDec 5 20:05
IB 537Airbus A320
18h 20m·2 stops
$561 USD
Aer Lingus
SEADec 4 20:05
→
DUBDec 5 13:10
EI 52Airbus A330
2h 55m layover
British Airways
DUBDec 5 16:05
→
LHRDec 5 17:30
BA 833Airbus A320neo
2h 10m layover
British Airways
LHRDec 5 19:40
→
LISDec 5 22:25
BA 512Airbus A320neo
17h 40m·2 stops
$610 USD
American Airlines
SEADec 4 06:00
→
CLTDec 4 14:00
AA 3068Airbus A321
1h 45m layover
American Airlines
CLTDec 4 15:45
→
MADDec 5 05:45
AA 748Boeing 777
1h 30m layover
Iberia Airlines
MADDec 5 07:15
→
LISDec 5 07:40
IB 529Airbus A320
16h 58m·2 stops
$908 USD
Alaska Airlines, Inc.
SEADec 4 10:52
→
ORDDec 4 17:01
AS 429Boeing 737
39m layover
Iberia Airlines
ORDDec 4 17:40
→
MADDec 5 08:50
IB 342Airbus A330
2h 35m layover
Iberia Airlines
MADDec 5 11:25
→
LISDec 5 11:50
IB 1141Canadair RJ 1000
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