Flights Seattle → Portland
SEA → PDX
Route overview
The flight route from Seattle to Portland operates with a high on-time performance rate of 86%, with an average delay of just 6.7 minutes per flight. Over the past year, this route has seen a total of 1520 flights using aircraft such as the De Havilland Canada DHC-8-400 Dash 8Q, Canadair Regional Jet 700, and Embraer EMB 120 Brasilia, serving a busy destination airport with over 18.5 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Seattle (SEA) → Portland (PDX) route is operated by Alaska Airlines, United Airlines. Across 2109 flights monitored in recent months, 82% arrived on time (within 15 min of schedule), with an average delay of 9 minutes. The cancellation rate is 2.56%. FlightGuard's average computed risk is 20/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Portland the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Seattle the average ATFM delay is 2.0 minutes.
Heading to Portland: what to expect in this direction
Flying from Seattle (SEA) to Portland (PDX) heads south for about 208 km, a flight time of roughly 41m.
Departures from Seattle on this leg cluster in the overnight window: about 38% of SEA-PDX flights take off then.
Air-traffic congestion: departing Seattle the average ATFM delay is 2.0 min (atfm); arriving into Portland it is 2.0 min (atfm).
Across 2,109 tracked SEA-PDX flights, 82% left on time with an average delay of 9 min and a 2.6% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
| Alaska Airlines (AS) | 67% | 10 min | 11.9% |
Airlines operating SEA-PDX
Airports
Frequently asked questions about SEA-PDX
On the Seattle (SEA) -> Portland (PDX) route, on-time performance is 82% with an average delay of 9 minutes, based on 2109 tracked flights.
The cancellation rate on Seattle-Portland is 2.56% across 2109 monitored flights.
The route is operated by 2 airlines: Alaska Airlines, United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Portland, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
