Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Porto

1 adult
0 bags
'This year, momondo is the #1 place for airfares on the internet.'
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Seattle to Porto

Cheap return flights

These are some of the best return flight deals from Seattle to Porto that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Porto.

Cheap last-minute flights

Planning a quick getaway from Seattle to Porto? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Porto, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Seattle to Porto

Find recent round-trip train or bus tickets from Seattle to Porto.

All round-trip flight deals to Porto

The cheapest plane tickets to Porto found on KAYAK recently.
SEA-OPO
13166 kmmulti-stop
OPO-SEA
13166 kmmulti-stop
Multiple Airlines
Find Deal
SEA-OPO
13166 kmmulti-stop
Multiple Airlines
Find Deal

See travel insights to Porto from

How to get the cheapest flight ticket from Seattle to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Porto?

The month of November is, on average, the cheapest month to fly to Porto from Seattle, with most prices found around R15 375. The month of February is another great option to travel to Porto, with average flight prices from Seattle averaging around R15 450.

How far in advance should I book a flight to Porto?

Most flyers found that booking tickets 51 days in advance of their planned departure date is the best time to get cheap flights to Porto. During this timeframe, flight prices are around R20 807. However, in the past 72 hours, people saw flights from Seattle for as low as R271 266.

How have Seattle to Porto flight prices changed over time?

As of December 2024, prices for Seattle to Porto flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to Porto (SEA to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Porto

Direct flights

None
There are no direct flights from Seattle to Porto. There are no popular flight routes from Seattle to Porto.

  • How far is Seattle/Tacoma Intl to Porto by plane?

    A flight from Seattle/Tacoma Intl to Porto will travel around 8180,4 km.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Porto Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Porto Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Porto?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Porto. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Porto with flexible booking policies on momondo?

All flight searches from Seattle to Porto on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Porto?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Porto.

I’m not ready to book a flight from Seattle to Porto right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


An easier way to manage your Porto trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 31/12
Tue 7/1
Email me momondo's favourite deals

Find better results for your trip to Portugal