$306 Cheap flight deals from Seattle (SEA) to Porto (OPO)

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This Weekend's Flight Deals from Seattle to Porto

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Mar 22 - Tue, Apr 7
SEA
Seattle - Tacoma Intl.
OPO
Dr. Francisco de Sa Carneiro
$1,685 Roundtrip, found 3 days ago
$1,685
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Sun, Mar 22 from Seattle - Tacoma Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Apr 7, priced at $1,685 found 3 days ago

Airfares from $306 One Way, $672 Round Trip from Seattle to Porto

Prices starting at $672 for return flights and $306 for one-way flights to Porto were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 28 - Wed, Nov 11
SEA
Seattle
OPO
Porto
$672 Roundtrip, found 5 days ago
$672
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Oct 28 from Seattle to Porto, returning Wed, Nov 11, priced at $672 found 5 days ago
Sun, Sep 27 - Fri, Oct 2
SEA
Seattle
OPO
Porto
$698 Roundtrip, found 5 days ago
$698
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Sep 27 from Seattle to Porto, returning Fri, Oct 2, priced at $698 found 5 days ago
Mon, Apr 13 - Mon, Apr 20
SEA
Seattle
OPO
Porto
$727 Roundtrip, found 4 days ago
$727
Roundtrip
found 4 days ago
Select Swiss International Air Lines flight, departing Mon, Apr 13 from Seattle to Porto, returning Mon, Apr 20, priced at $727 found 4 days ago
Thu, Oct 15 - Fri, Oct 23
SEA
Seattle
OPO
Porto
$744 Roundtrip, found 2 days ago
$744
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Thu, Oct 15 from Seattle to Porto, returning Fri, Oct 23, priced at $744 found 2 days ago
Thu, Apr 16 - Wed, Apr 29
SEA
Seattle
OPO
Porto
$773 Roundtrip, found 3 days ago
$773
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Apr 16 from Seattle to Porto, returning Wed, Apr 29, priced at $773 found 3 days ago

More About Flying To Porto from Seattle

Route Information for Flights from Seattle to Porto

Origin Airport IATA Code
SEA
Destination Airport IATA Code
OPO
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to Porto

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Easy Flight Cancellation

In most cases, you can cancel flights from Seattle to Porto online with the same ease as you booked them.

Frequently asked questions

What is the shortest flight from Seattle to Porto?
It's a long way from Seattle - Tacoma Intl. Airport (SEA) to Dr. Francisco de Sa Carneiro Airport (OPO) — 11 hours and 40 minutes at least. But your time in your seat doesn't need to be a strain. Be prepared and come with the basics like your toothbrush and a pillow.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.