Great Falls (GTF) to Seattle (SEA)
Flight time
≈ 1h 49m
Bearing
274° W
Great Falls (GTF) to Seattle (SEA) is 511 miles (822 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies GTF–SEA
Filed traffic dataIn June 2026, Horizon Air was the only carrier flying nonstop GTF–SEA; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 88% full.
Departures
60
June 2026
Seats
4,560
both directions
Passengers
4,002
both directions
Load factor
87.8%
RPM ÷ ASM
Who flies GTF–SEA?
Horizon Air was the only carrier to fly nonstop GTF–SEA in June 2026 (60 departures).
- QX
60 departures · 4,560 seats
Share of departures100.0%87.8%
Load
What plane flies GTF–SEA?
In June 2026, the Embraer E175 flew 100% of GTF–SEA departures.
- Embraer E175
60 departures · 87.8% load
100.0%
How has GTF–SEA traffic changed?
Nonstop GTF–SEA departures fell from 62 in July 2025 to 60 in June 2026.
Monthly nonstop GTF–SEA traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
62 departures · 4,187 passengers
88.9%
Load
August 2025
62 departures · 4,170 passengers
88.5%
Load
September 2025
60 departures · 3,820 passengers
83.8%
Load
October 2025
62 departures · 3,727 passengers
79.1%
Load
November 2025
58 departures · 3,206 passengers
72.7%
Load
December 2025
63 departures · 3,964 passengers
82.8%
Load
January 2026
62 departures · 3,409 passengers
72.4%
Load
February 2026
56 departures · 3,246 passengers
76.3%
Load
March 2026
58 departures · 3,457 passengers
78.4%
Load
April 2026
60 departures · 3,456 passengers
75.8%
Load
May 2026
62 departures · 3,882 passengers
82.4%
Load
June 2026
60 departures · 4,002 passengers
87.8%
Load
By direction
Each direction is filed separately — they rarely match.
GTF → SEA
86.4% full
30 departures · 1,970 passengers
SEA → GTF
89.1% full
30 departures · 2,032 passengers
Nonstop GTF–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Great Falls (GTF) from Seattle (SEA)?
GTF to SEA is 511 miles (822 km / 444 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from GTF to SEA?
A nonstop covers the 511-mile great-circle distance in roughly 1h 49m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies GTF–SEA?
In June 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying GTF–SEA?
Distance-based programs credit off the 511-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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