Find the Cheapest Flights from Seattle to Portugal

Unlock the cheapest flights and the best airfares from Seattle to Portugal. Make your dream trip both memorable and affordable!

Wed, Jul 22SEA-LIS
Air Canada

oneway$448

Sun, Aug 9SEA-LIS
Alaska Airlines

$856

Seattle to Portugal: Flight information

Cheapest flight found$448

Cheapest month to flyJuly

Most popular airlineAir Canada

Average flight duration14h 50m

Cheapest flight found

Jul 2026

$448

FAQs

How to find cheap flights to Portugal from Seattle etc..

How long is the flight from Seattle to Portugal?

What airlines fly from Seattle to Portugal?

When to buy cheap flights from Seattle to Portugal?

How can I find the cheapest flights from Seattle?

How can I cancel / change my flight?

Do the prices include taxes and fees?

Does the flight price include baggage fees?

What should I do if my flight is canceled?

Travel Like Never Before

• Search And compare between flights easily
• A single travel booking that allows you to visit several cities during one trip

Download OUR APP NOW