Portland International Airport
Portland, United StatesPDX / KPDX
Major airport · 93 direct destinations · 3 runways · longest runway 11,001 ft
50 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Portland → Seattle
PDX
PortlandPortland International Airport
PortlandPortland International AirportBFISeattleKing County International Airport - Boeing Field
SeattleKing County International Airport - Boeing Field- Distance
- 135 mi
- Estimated flight time
- ~45m
Same local time in Portland and Seattle.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 4 flights a day, observed from October 2025 to September 2026.
- 4
- flights per day
- 6
- busiest month · Jun
- 3
- quietest month · Dec
- 39 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 4Jan2026
- 4Feb
- 4Mar
- 4Apr
- 4May
- 6Jun
- 5Jul
- 5Aug
- 5Sep
- 5Oct2025
- 4Nov
- 3Dec
Airlines
Who flies it
UPS Airlinesall year
Air Todaysummer
Boeingall year
Ameriflightwinter
Through the day
Departure times
Local time in Portland. Most departures between 16:00 and 19:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 4.3Mon
- 4.7Tue
- 4.6Wed
- 5.1Thu
- 5.1Fri
- 3.4Sat
- 3.6Sun
Fleet
Aircraft observed
- Pilatus PC-12PC1243%
- Boeing 767-300B76318%
- Boeing 757-200B7523%
- Cessna Citation LatitudeC68A2%
- Embraer Phenom 300E55P1%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 4 | 121 |
|
| February 2026 | 4 | 129 |
|
| March 2026 | 4 | 132 |
|
| April 2026 | 4 | 121 |
|
| May 2026 | 4 | 118 |
|
| June 2026 | 6 | 157 |
|
| July 2026 | 5 | 154 |
|
| August 2026 | 5 | 139 |
|
| September 2026 | 5 | 161 |
|
| October 2025 | 5 | 142 |
|
| November 2025 | 4 | 130 |
|
| December 2025 | 3 | 87 |
|
Airlines observed on this route
From observed callsign routes on PDX-BFI - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Portland: 93.
- Direct destinations observed from Seattle: 63.
The airports on this route
King County International Airport - Boeing Field
Seattle, United StatesBFI / KBFI
Regional airport · 63 direct destinations · 2 runways · longest runway 10,007 ft
45 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Portland to Seattle
The observed direct connection between Portland International Airport (PDX) and King County International Airport - Boeing Field (BFI) covers approximately 135 mi. The estimated flight time is around 45m. Air Today, Ameriflight, Boeing and UPS Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Portland from Seattle by air?
- The great-circle distance between Portland International Airport and King County International Airport - Boeing Field is approximately 135 mi.
- How long is the flight from Portland to Seattle?
- Based on the distance, the estimated flight time is about 45m. This is an estimate, not a schedule.
- Is there a direct connection from Portland to Seattle?
- Yes, a direct connection between PDX and BFI has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Air Today, Ameriflight, Boeing and UPS Airlines.
- How often is there a flight from Portland to Seattle?
- On average around 4 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,591 observed flights. Mainly UPS Airlines, Air Today, Boeing. That is an observation, not a timetable.
- What is the current time difference between Portland and Seattle?
- Same local time in Portland and Seattle.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.