✈️ Flight Guide: Birmingham (BHM) → Portland (PDX)

Major events that impact PDX–SEA travel include Portland's Rose Festival (June) and Waterfront events, plus Seattle's Seafair and Bumbershoot (July and September). These festivals increase demand for flights into both Portland International Airport (PDX) and Seattle-Tacoma International Airport (SEA), driving up parking and rideshare wait times. If your travel dates coincide with these events, book flights and ground transfers early or choose non-peak travel days to save on 'cheap flights PDX to SEA.' CTA: Check event dates before booking to avoid peak pricing.

The best time to fly from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) for cheap fares is typically January, February, and early November—shoulder seasons when demand is lower. Book 2–6 weeks in advance for the short-haul route; midweek mornings and late evenings usually offer the lowest prices. For fewer crowds and pleasant weather, consider September and October as optimal travel windows.

Nonstop flights between Portland International Airport (PDX) and Seattle-Tacoma International Airport (SEA) are almost always recommended: they are fastest (about 50–65 minutes airborne), more convenient, and often cheaper for short-haul travel. Connecting flights are rarely necessary and usually add significant travel time; opt for a connection only if it allows significant cost savings or part of a multi-city itinerary. For best results, compare nonstop options from carriers like Alaska Airlines and Southwest and book direct when possible.

Alaska Airlines often offers high-frequency nonstop service between Portland International Airport (PDX) and Seattle-Tacoma International Airport (SEA) with strong loyalty benefits and competitive fares. Southwest also provides frequent, often low-cost options with free checked bags and flexible change policies. Smaller or seasonal carriers may appear during peak months; compare total trip costs including baggage fees and schedules. CTA: Compare current fares across providers to find the best deal for your travel dates.

Winter (Dec–Feb): Expect rain and possible snow at times—allow extra time for ground travel and pack waterproof layers. Spring (Mar–May): Shoulder-season fares and variable weather; midweek flights often cheapest. Summer (Jun–Aug): Peak fares and crowds—book early and consider early-morning flights to avoid delays. Fall (Sep–Nov): Great shoulder-season deals and mild weather; ideal for cheaper PDX–SEA trips. CTA: Sign up for seasonal fare alerts to find the best cheap flights PDX to SEA for your travel window.

A nonstop flight between Portland International Airport (PDX) and Seattle-Tacoma International Airport (SEA) usually has an airborne time of about 50–65 minutes, and most carriers offer multiple daily departures, especially during peak summer months. Account for boarding, taxi, and deplaning when calculating total travel time—door-to-door travel is often 2–3 hours. Alternative options include driving (approx. 2.5–3.5 hours depending on traffic) or Amtrak/coach services for city-center to city-center travel.

Primary strategies to find cheap flights PDX to SEA include booking midweek departures, setting fare alerts on multiple travel search engines, and checking both legacy and low-cost carriers. Use flexible dates and consider early-morning flights to access the lowest prices. For monthly savings, monitor January–February and late-September windows when demand is lower. CTA: Search now for cheap PDX to SEA flights and set a price alert to be notified of the best deals.