Flights Europe Portugal Seattle to Portugal

Cheap flights from Seattle to Portugal

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Easily compare round-trip flights from Seattle to Portugal

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Portugal by changing tabs
Quickest
Cheapest
Aer Lingus
Aer Lingus
14 Jan
SEA
12:00 pm
Seattle/Tacoma Intl airport
30h 10m
1 Stop
2:10 am
+2
LIS
Lisbon Humberto Delgado airport
Aer Lingus
11 Feb
LIS
10:50 am
Lisbon Humberto Delgado airport
15h 25m
1 Stop
6:15 pm
SEA
Seattle/Tacoma Intl airport
613 USD
KLM
KLM
09 Mar
SEA
12:45 am
Seattle/Tacoma Intl airport
17h 45m
1 Stop
1:30 am
+1
LIS
Lisbon Humberto Delgado airport
KLM
18 Mar
LIS
7:30 pm
Lisbon Humberto Delgado airport
23h 37m
1 Stop
12:07 pm
+1
SEA
Seattle/Tacoma Intl airport
619 USD
Aer Lingus
Aer Lingus
21 Jan
SEA
12:00 pm
Seattle/Tacoma Intl airport
30h 10m
1 Stop
2:10 am
+2
LIS
Lisbon Humberto Delgado airport
Aer Lingus
07 Feb
LIS
7:05 pm
Lisbon Humberto Delgado airport
31h 10m
1 Stop
6:15 pm
+1
SEA
Seattle/Tacoma Intl airport
619 USD
Delta
Delta
30 Mar
SEA
4:15 am
Seattle/Tacoma Intl airport
15h 45m
1 Stop
4:00 am
+1
LIS
Lisbon Humberto Delgado airport
Delta
07 Apr
LIS
6:00 am
Lisbon Humberto Delgado airport
14h 11m
1 Stop
12:11 pm
SEA
Seattle/Tacoma Intl airport
620 USD
SWISS
SWISS
15 Jan
SEA
2:55 am
Seattle/Tacoma Intl airport
18h 45m
2 Stops
5:40 am
+1
LIS
Lisbon Humberto Delgado airport
SWISS
11 Feb
LIS
5:20 am
Lisbon Humberto Delgado airport
15h 00m
1 Stop
12:20 pm
SEA
Seattle/Tacoma Intl airport
630 USD
SWISS
SWISS
26 Feb
SEA
6:00 am
Seattle/Tacoma Intl airport
39h 40m
2 Stops
5:40 am
+2
LIS
Lisbon Humberto Delgado airport
SWISS
25 Mar
LIS
2:25 pm
Lisbon Humberto Delgado airport
39h 01m
2 Stops
10:26 pm
+1
SEA
Seattle/Tacoma Intl airport
632 USD
Delta
Delta
30 Mar
SEA
4:15 am
Seattle/Tacoma Intl airport
15h 45m
1 Stop
4:00 am
+1
LIS
Lisbon Humberto Delgado airport
Delta
07 Apr
LIS
6:00 am
Lisbon Humberto Delgado airport
14h 11m
1 Stop
12:11 pm
SEA
Seattle/Tacoma Intl airport
620 USD
Delta
Delta
13 Jan
SEA
3:40 am
Seattle/Tacoma Intl airport
13h 50m
1 Stop
1:30 am
+1
LIS
Lisbon Humberto Delgado airport
Delta
08 Feb
LIS
11:05 am
Lisbon Humberto Delgado airport
18h 53m
1 Stop
9:58 pm
SEA
Seattle/Tacoma Intl airport
672 USD
SWISS
SWISS
15 Jan
SEA
2:55 am
Seattle/Tacoma Intl airport
18h 45m
2 Stops
5:40 am
+1
LIS
Lisbon Humberto Delgado airport
SWISS
11 Feb
LIS
5:20 am
Lisbon Humberto Delgado airport
15h 00m
1 Stop
12:20 pm
SEA
Seattle/Tacoma Intl airport
630 USD
Delta
Delta
06 Jan
SEA
5:29 am
Seattle/Tacoma Intl airport
17h 36m
2 Stops
7:05 am
+1
LIS
Lisbon Humberto Delgado airport
Delta
14 Jan
LIS
11:00 am
Lisbon Humberto Delgado airport
16h 26m
1 Stop
7:26 pm
SEA
Seattle/Tacoma Intl airport
639 USD
KLM
KLM
21 Feb
SEA
11:45 pm
Seattle/Tacoma Intl airport
17h 50m
1 Stop
1:35 am
+2
LIS
Lisbon Humberto Delgado airport
KLM
03 Mar
LIS
11:00 am
Lisbon Humberto Delgado airport
16h 29m
1 Stop
7:29 pm
SEA
Seattle/Tacoma Intl airport
672 USD
Lufthansa
Lufthansa
31 Mar
SEA
1:17 am
Seattle/Tacoma Intl airport
18h 18m
1 Stop
3:35 am
+1
LIS
Lisbon Humberto Delgado airport
Lufthansa
07 Apr
LIS
11:30 am
Lisbon Humberto Delgado airport
18h 20m
1 Stop
9:50 pm
SEA
Seattle/Tacoma Intl airport
655 USD

Alternative routes for Seattle to Portugal

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Seattle to Lisbon
Fastest flight time
14h 05m
Cheapest price
580 USD
Seattle to Porto
Fastest flight time
14h 00m
Cheapest price
630 USD
Portland to Lisbon
Fastest flight time
18h 50m
Cheapest price
636 USD
Seattle to Ponta Delgada (Açores)
Fastest flight time
12h 32m
Cheapest price
709 USD
Portland to Porto
Fastest flight time
17h 55m
Cheapest price
727 USD
Portland to Ponta Delgada (Açores)
Fastest flight time
20h 50m
Cheapest price
744 USD
Seattle to Faro
Fastest flight time
22h 40m
Cheapest price
825 USD
View more

Flights from Seattle to:

Flights Europe Portugal Seattle to Portugal