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

Prices for flights from Portland Airport to Seattle/Tacoma Intl Airport were last updated today.

How old do you have to be to fly from Portland Airport to Seattle/Tacoma Intl 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 Portland Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

R23 865 Cheap Flights from Portland to Seattle in 2025/26

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How to get the cheapest flight ticket from Portland to Seattle

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What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Portland is in January. Flight prices, which tend to average around R2 734, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of R3 046.

What is the cheapest Portland to Seattle/Tacoma Intl flight route?

Fly from Portland to Seattle/Tacoma Intl for the best Portland - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around R3 747 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Portland for as low as R2 665 on momondo.

What cabin class options are available on Portland to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on Portland to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Portland to Seattle flight prices changed over time?

As of November 2025, prices for Portland to Seattle flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Seattle

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

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Cheap Portland to Seattle (PDX to SEA) flight deals and tips

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

Direct flights	None

There are no direct flights from Portland to Seattle. Popular non-direct route for this connection is Portland Airport - Seattle/Tacoma Intl Airport.

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How far is Portland to Seattle/Tacoma Intl by plane?
The straight-line distance from Portland to Seattle/Tacoma Intl is 233,6 km.
When did momondo last update prices for flights from Portland Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Portland Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from Portland Airport to Seattle/Tacoma Intl 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 Portland Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Portland to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Portland to Seattle is Boeing 737-800 Passenger/BBJ2 (winglets) (14,00% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (12,00%), Embraer 175 (11,29%), and Boeing 737 MAX 9 (9,35%).

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

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

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

Yes. momondo allows you to filter the results for Portland to Seattle flights to just show those with flexible booking policies.

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

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 Portland to Seattle.

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

Yes momondo offers price alerts on flights to Seattle from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.