Routes/Portland, OR to Seattle, WA

Portland, OR to Seattle, WA

Average one-way fare in 2026 Q1: $215 · 135 nonstop miles · 333 passengers per day.

2026 Q1 fare$215

2025 Q1 fare$189

Change+$26

Passengers/day333

Distance135 mi

The average fare a year earlier (2025 Q1) was $189. The change is $26 higher (13.7%).

The largest carrier on this route in 2026 Q1 was Alaska with 74% of passengers. The lowest-fare carrier was Alaska with 74% of passengers, at an average fare of $208.

All routes from Portland, OR · All routes from Seattle, WA

All quarters on this route

Quarter	Passengers/day	Avg. fare	Largest carrier	Largest share	Lowest-fare carrier
2024 Q1	344	$209	Alaska	81%	Alaska
2024 Q2	390	$199	Alaska	80%	Delta
2024 Q3	412	$179	Alaska	82%	Alaska
2024 Q4	397	$175	Alaska	81%	Delta
2025 Q1	354	$189	Alaska	81%	Alaska
2025 Q2	392	$202	Alaska	78%	Delta
2025 Q3	397	$200	Alaska	76%	Delta
2025 Q4	362	$205	Alaska	74%	Alaska
2026 Q1	333	$215	Alaska	74%	Alaska

Source: U.S. Department of Transportation, Consumer Airfare Report Table 1, 2026 Q1. Figures are average one-way fares paid, including taxes and fees, for the quarter shown. Record: city markets 34057 and 30559; U.S. Department of Transportation, Domestic Airline Consumer Airfare Report, Table 1: top 1,000 contiguous-state city-pair markets (average one-way fare, passengers per day, largest carrier, lowest-fare carrier). Fetched 2026-09-27T00:40:04Z. Source data.