Kalispell (FCA) to Seattle (SEA)
Flight time
≈ 1h 33m
Bearing
264° W
Kalispell (FCA) to Seattle (SEA) is 378 miles (608 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies FCA–SEA
Filed traffic dataIn May 2026, Horizon Air operated the most departures, one of 2 carriers flying nonstop FCA–SEA; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 81% full.
Departures
182
May 2026
Seats
13,832
both directions
Passengers
11,218
both directions
Load factor
81.1%
RPM ÷ ASM
Who flies FCA–SEA?
Horizon Air operated the most nonstop FCA–SEA departures in May 2026 (172), one of 2 carriers on the route.
- QX
172 departures · 13,072 seats
Share of departures94.5%81.0%
Load
- OO
10 departures · 760 seats
Share of departures5.5%83.2%
Load
What plane flies FCA–SEA?
In May 2026, the Embraer E175 flew 100% of FCA–SEA departures.
- Embraer E175
182 departures · 81.1% load
100.0%
How has FCA–SEA traffic changed?
Nonstop FCA–SEA departures rose from 179 in June 2025 to 182 in May 2026.
Monthly nonstop FCA–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
179 departures · 12,284 passengers
90.3%
Load
July 2025
181 departures · 12,754 passengers
92.7%
Load
August 2025
248 departures · 16,652 passengers
88.3%
Load
September 2025
241 departures · 15,722 passengers
85.3%
Load
October 2025
176 departures · 11,333 passengers
84.7%
Load
November 2025
132 departures · 8,478 passengers
84.5%
Load
December 2025
150 departures · 9,448 passengers
82.9%
Load
January 2026
173 departures · 10,122 passengers
77.0%
Load
February 2026
168 departures · 11,009 passengers
86.2%
Load
March 2026
178 departures · 11,571 passengers
85.5%
Load
April 2026
172 departures · 9,578 passengers
73.0%
Load
May 2026
182 departures · 11,218 passengers
81.1%
Load
By direction
Each direction is filed separately — they rarely match.
FCA → SEA
82.1% full
91 departures · 5,681 passengers
SEA → FCA
80.1% full
91 departures · 5,537 passengers
Nonstop FCA–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Kalispell (FCA) from Seattle (SEA)?
FCA to SEA is 378 miles (608 km / 328 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from FCA to SEA?
A nonstop covers the 378-mile great-circle distance in roughly 1h 33m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies FCA–SEA?
In May 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying FCA–SEA?
Distance-based programs credit off the 378-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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