Quick Commutes: Cheap Flights from PDX to SEA & Essential Travel Guide
Cheapest flight found
$110
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: PDX → SEA
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$110
Highest Fare
$209
Median Fare
$174
Price Spread
$99
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: May 2026 (from $110)
Most expensive month: April 2026 (from $209)
Biggest price drop caught: $40 between consecutive checks
Most frequent cheapest airline: Alaska
What This Means for You
Flights from Portland to Seattle range from $110 to $209, a $99 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Because prices on this route change significantly, setting up hourly price alerts gives you the best chance of catching a short-lived drop before it corrects. We have caught drops as large as $40 between hourly checks on this route.
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From
Portland (PDX)
To
Seattle (SEA)
Airport Information
Portland (PDX)
Portland International Airport (PDX) is consistently ranked as one of the best airports in the United States, known for its locally sourced dining options, tax-free shopping, and iconic patterned carpets. Located just 12 miles northeast of downtown Portland, it serves as a major hub for Alaska Airlines. Travelers can enjoy free Wi-Fi, live local music performances in the terminals, and a seamless transition from the MAX Light Rail system directly into the ticket lobby.
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, is the primary gateway to the Pacific Northwest and a major international hub for both Alaska Airlines and Delta Air Lines. The airport features an impressive central terminal with massive floor-to-ceiling windows overlooking the runways and mountains. Recent expansions have modernized the International Arrivals Facility and the N Gates, offering travelers premium lounges and a diverse array of Pacific Northwest-inspired culinary delights.
Frequently Asked Questions
How long is the actual flight time between PDX and SEA?
The actual time spent in the air is usually between 35 and 50 minutes, though the total gate-to-gate time is typically scheduled for about one hour.
Which airlines fly direct from Portland to Seattle?
Alaska Airlines and Delta Air Lines are the primary carriers offering multiple daily non-stop flights between these two cities.
Is it better to fly or take the train or bus?
Flying is significantly faster, taking about 50 minutes compared to 3-4 hours on the Amtrak Cascades or a bus, making it ideal for those with limited time.
What is the best way to get from SEA airport to downtown Seattle?
The Sound Transit Link Light Rail is the most cost-effective method, departing directly from the airport parking garage and reaching downtown in approximately 40 minutes.
Are there meals served on this flight?
Due to the very short duration of the flight, there is typically no full meal service, though some airlines may provide a quick beverage or small snack in premium cabins.
Learn More About Price Tracking
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Our Methodology
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How Often Do Prices Drop?
Data study: drop frequency, average savings, and how long drops last.
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