Cheap flights from Seattle to Porto from $0
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Discover deals on Seattle to Porto flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Seattle to Porto
Best
2 stops
9 Feb
DEP
12:51
SEA
2×
17:35
OPO
20h 44m
9 Feb
DEPARTURE
12:51 - 17:35
20h 44m
SEA
2 stops
OPO
2 stops
9 Feb
DEP
12:51
SEA
2×
17:35
OPO
20h 44m
9 Feb
DEPARTURE
12:51 - 17:35
20h 44m
SEA
2 stops
OPO
American Airlines flights from Seattle to Porto
Our best American Airlines deals on Seattle to Porto tickets
Best
2 stops
9 Feb
DEP
06:00
SEA
2×
11:45
OPO
21h 45m
9 Feb
DEPARTURE
06:00 - 11:45
21h 45m
SEA
2 stops
OPO
2 stops
9 Feb
DEP
06:00
SEA
2×
11:45
OPO
21h 45m
9 Feb
DEPARTURE
06:00 - 11:45
21h 45m
SEA
2 stops
OPO
British Airways flights from Seattle to Porto
Our best British Airways deals on Seattle to Porto tickets
Best
2 stops
9 Feb
DEP
12:51
SEA
2×
17:35
OPO
20h 44m
9 Feb
DEPARTURE
12:51 - 17:35
20h 44m
SEA
2 stops
OPO
2 stops
9 Feb
DEP
12:51
SEA
2×
17:35
OPO
20h 44m
9 Feb
DEPARTURE
12:51 - 17:35
20h 44m
SEA
2 stops
OPO
Iberia flights from Seattle to Porto
Our best Iberia deals on Seattle to Porto tickets
Best
2 stops
9 Feb
DEP
08:35
SEA
2×
11:45
OPO
19h 10m
9 Feb
DEPARTURE
08:35 - 11:45
19h 10m
SEA
2 stops
OPO
2 stops
9 Feb
DEP
10:50
SEA
2×
11:45
OPO
16h 55m
9 Feb
DEPARTURE
10:50 - 11:45
16h 55m
SEA
2 stops
OPO
What's the cheapest day of the week to fly from Seattle to Porto?
If your flying dates are flexible, you should consider flying to Porto on a Wed, as we generally find the cheapest rates on that day. On the other hand, Fri is the most expensive day to fly.
What is the cheapest month to fly from Seattle to Porto?
The cheapest month for flights from Seattle to Porto is Sep, where tickets cost $651 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$940$796$651
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Everything you should know
Cheapest one-way flight
$710
Typical prices: $710–$1010
When to book
6 weeks
in advance to save around 35%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 6+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from Seattle to Porto currently costs AUD $710. Prices typically range from $710 to $1010. Prices change frequently, so we recommend booking early and being flexible with your travel dates.