Pasco (PSC) to Seattle (SEA)
Flight time
≈ 1h 09m
Bearing
300° NW
Pasco (PSC) to Seattle (SEA) is 172 miles (276 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies PSC–SEA
US DOT T-100 · filed dataIn April 2026, SkyWest Airlines operated the most departures, one of 2 carriers flying nonstop PSC–SEA; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 81% full.
Departures
418
April 2026
Seats
31,486
both directions
Passengers
25,392
both directions
Load factor
80.7%
passengers ÷ seats
Who flies PSC–SEA?
SkyWest Airlines operated the most nonstop PSC–SEA departures in April 2026 (218), one of 2 carriers on the route.
- OO
SkyWest Airlines
218 departures · 16,286 seats
Share of departures52.2%78.0%
Load
- QX
Horizon Air
200 departures · 15,200 seats
Share of departures47.8%83.5%
Load
What plane flies PSC–SEA?
In April 2026, the Embraer E175 flew 100% of PSC–SEA departures.
- Embraer E175
418 departures · 80.7% load
100.0%
How has PSC–SEA traffic changed?
Nonstop PSC–SEA departures fell from 538 in May 2025 to 418 in April 2026.
Monthly nonstop PSC–SEA traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
538 departures · 31,327 passengers
67.9%
Load
June 2025
495 departures · 31,859 passengers
75.6%
Load
July 2025
482 departures · 31,556 passengers
77.0%
Load
August 2025
508 departures · 30,727 passengers
71.9%
Load
September 2025
453 departures · 29,805 passengers
76.2%
Load
October 2025
458 departures · 30,092 passengers
75.8%
Load
November 2025
421 departures · 29,996 passengers
79.2%
Load
December 2025
468 departures · 34,292 passengers
79.7%
Load
January 2026
408 departures · 29,005 passengers
78.2%
Load
February 2026
362 departures · 25,062 passengers
78.0%
Load
March 2026
395 departures · 26,797 passengers
82.0%
Load
April 2026
418 departures · 25,392 passengers
80.7%
Load
By direction
The DOT files each direction separately — they rarely match.
PSC → SEA
79.7% full
209 departures · 12,545 passengers
SEA → PSC
81.6% full
209 departures · 12,847 passengers
Nonstop PSC–SEA traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Pasco (PSC) from Seattle (SEA)?
PSC to SEA is 172 miles (276 km / 149 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from PSC to SEA?
A nonstop covers the 172-mile great-circle distance in roughly 1h 09m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies PSC–SEA?
In April 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying PSC–SEA?
Distance-based programs credit off the 172-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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