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 16th, 2026
Outbound Flights
20h 15m·1 stop
$639 USD
SEAAug 16 13:30
→LHRAug 17 06:45
BA 52Boeing 787-10
8h 5m layover
LHRAug 17 14:50
→LISAug 17 17:45
BA 506Airbus A320
18h 45m·1 stop
$639 USDSEAAug 16 20:20
→LHRAug 17 13:45
BA 48Boeing 777
6h 30m layover
LHRAug 17 20:15
→LISAug 17 23:05
BA 508Airbus A321neo
18h 55m·1 stop
$640 USDSEAAug 16 13:30
→LHRAug 17 06:45
BA 52Boeing 787-10
6h 45m layover
LHRAug 17 13:30
→LISAug 17 16:25
BA 504Airbus A320
19h 15m·2 stops
$647 USD
SEAAug 16 05:50
→ORDAug 16 12:07
AA 1872Airbus A321
3h 53m layover
ORDAug 16 16:00
→PHLAug 16 19:19
AA 1809Boeing 737
1h 46m layover
PHLAug 16 21:05
→LISAug 17 09:05
AA 258Boeing 787
19h 5m·2 stops
$654 USDSEAAug 16 20:20
→LHRAug 17 13:45
BA 48Boeing 777
3h 25m layover
LHRAug 17 17:10
→MADAug 17 20:35
IB 720Airbus A320
2h 25m layover
MADAug 17 23:00
→LISAug 17 23:25
IB 539Airbus A320
18h 15m·2 stops
$662 USDSEAAug 16 13:50
→ORDAug 16 20:25
AA 2966Airbus A321
2h layover
ORDAug 16 22:25
→MADAug 17 13:30
AA 126Boeing 787
2h 10m layover
MADAug 17 15:40
→LISAug 17 16:05
IB 1143Canadair RJ 1000
26h 37m·1 stop
$667 USDSEAAug 16 22:28
→PHLAug 17 06:40
AA 2886Airbus A321
14h 25m layover
PHLAug 17 21:05
→LISAug 18 09:05
AA 258Boeing 787
19h 38m·2 stops
$668 USDSEAAug 16 14:07
→DFWAug 16 20:13
AA 717Airbus A321
1h 27m layover
DFWAug 16 21:40
→LHRAug 17 12:50
AA 80Boeing 777
2h layover
LHRAug 17 14:50
→LISAug 17 17:45
BA 506Airbus A320
16h 55m·1 stop
$712 USDSEAAug 16 08:10
→PHLAug 16 16:32
AA 986Airbus A321
4h 33m layover
PHLAug 16 21:05
→LISAug 17 09:05
AA 258Boeing 787
17h 58m·2 stops
$806 USDSEAAug 16 14:07
→DFWAug 16 20:13
AA 717Airbus A321
1h 32m layover
DFWAug 16 21:45
→MADAug 17 14:25
IB 364Airbus A330
1h 15m layover
MADAug 17 15:40
→LISAug 17 16:05
IB 1143Canadair RJ 1000
18h 35m·2 stops
$1,818 USDSEAAug 16 13:30
→LHRAug 17 06:45
BA 52Boeing 787-10
2h 30m layover
LHRAug 17 09:15
→MADAug 17 12:40
IB 712Airbus A320
3h layover
MADAug 17 15:40
→LISAug 17 16:05
IB 1143Canadair RJ 1000
18h 35m·2 stops
$1,818 USDSEAAug 16 13:30
→LHRAug 17 06:45
BA 52Boeing 787-10
4h 5m layover
LHRAug 17 10:50
→MADAug 17 14:15
IB 714Airbus A320
1h 25m layover
MADAug 17 15:40
→LISAug 17 16:05
IB 1143Canadair RJ 1000