There are most likely no direct flights on the Seattle — Portland route
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A non-stop flight is the most convenient and comfortable way to fly from Seattle to Portland, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
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There are most likely no direct flights on the Seattle — Portland route
Seattle — Portland
08/16/2026
Departure
Direct flight
X43141
starting at $224
Seattle — Portland
08/18/2026
Departure
Direct flight
X43140
starting at $209
Seattle — Portland
08/18/2026
Departure
Direct flight
X43119
starting at $220
Seattle — Portland
08/20/2026
Departure
Direct flight
AS2028
starting at $243
Seattle — Portland
08/21/2026
Departure
Direct flight
AS453
starting at $200
Seattle — Portland
08/22/2026
Departure
Direct flight
AS2028
starting at $302
starting at $209
starting at $185
The Seattle — Portland route is served by multiple airlines, including Air Excursion, LLC and Alaska Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $185, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.
The cheapest one-way flight from Seattle to Portland departs on 08/20/2026, is operated by Alaska Airlines and costs $185
There is no information about the cheapest roundtrip flight from Seattle to Portland
Fastest flight from Seattle to Portland takes 0h 50m
There are direct flights on this route 5 days a week: Su, Tu, Th, Fr, and Sa
The distance between Seattle and Portland is 235km (146 miles). There are 144 direct flights from Seattle to Portland. Seattle and Portland are in the same time zone. Flights from Seattle begin at 5:25 AM. The latest flight from Seattle departs at 11:26 PM
The cheapest flight ticket from Seattle to Portland according to data for the last 48 hours costs $185
Often the best time to buy tickets from Seattle to Portland is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Portland can be found flying in these months: September, May, August.
The fastest flights from Seattle to Portland start from 50 minutes in the air.
The following airlines operate direct flights on the route Seattle — Portland: Air Excursion, LLC, Alaska Airlines
In different months, ticket prices from Seattle to Portland vary: minimum — $113 (September 2026), maximum — $160 (August 2026). Typically, the flight costs $143–$315.
On the Seattle — Portland route, prices first decline, hit a low, then start rising again. The middle of the period creates a price window — the best time to book.
Prices fall from August 2026 to September 2026 (29%), then rise from September 2026 to May 2027 (+37%). The best period is September 2026–May 2027 ($134), the most expensive is August 2026–September 2026 ($137).
The best time to buy is September 2026–May 2027, when prices are at their lowest. This can save you up to 2% compared to the expensive months (August 2026–September 2026).
Monthly price variation is 14.6%. On this route, your departure date noticeably affects the cost, and choosing wisely can lead to real savings.
We couldn't find any special offers for flights from Seattle to Portland