Ketchikan (KTN) to Seattle (SEA)
Flight time
≈ 2h 09m
Bearing
140° SE
Ketchikan (KTN) to Seattle (SEA) is 679 miles (1,093 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies KTN–SEA
Filed traffic dataIn May 2026, Alaska Airlines was the only carrier flying nonstop KTN–SEA; the Boeing 737-700 was the most common aircraft at 52% of departures; flights ran 66% full.
Departures
223
May 2026
Seats
32,488
both directions
Passengers
21,483
both directions
Load factor
66.1%
RPM ÷ ASM
Who flies KTN–SEA?
Alaska Airlines was the only carrier to fly nonstop KTN–SEA in May 2026 (223 departures).
- AS
223 departures · 32,488 seats
Share of departures100.0%66.1%
Load
What plane flies KTN–SEA?
In May 2026, the Boeing 737-700 flew 52% of KTN–SEA departures — more than any other aircraft type.
- Boeing 737-700
117 departures · 73.4% load
52.5% - Boeing 737-800
47 departures · 66.5% load
21.1% - Boeing 737-900ER
41 departures · 54.7% load
18.4% - Boeing 737 MAX 9
13 departures · 53.1% load
5.8% - Boeing 737 MAX 8
5 departures · 72.2% load
2.2%
How has KTN–SEA traffic changed?
Nonstop KTN–SEA departures fell from 277 in June 2025 to 223 in May 2026.
Monthly nonstop KTN–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
277 departures · 31,089 passengers
77.5%
Load
July 2025
308 departures · 40,003 passengers
87.5%
Load
August 2025
287 departures · 39,438 passengers
92.3%
Load
September 2025
236 departures · 23,806 passengers
68.9%
Load
October 2025
189 departures · 17,584 passengers
68.5%
Load
November 2025
169 departures · 15,760 passengers
68.7%
Load
December 2025
174 departures · 16,962 passengers
75.5%
Load
January 2026
160 departures · 13,517 passengers
64.1%
Load
February 2026
161 departures · 12,464 passengers
56.9%
Load
March 2026
184 departures · 17,258 passengers
69.5%
Load
April 2026
181 departures · 17,549 passengers
74.3%
Load
May 2026
223 departures · 21,483 passengers
66.1%
Load
By direction
Each direction is filed separately — they rarely match.
KTN → SEA
58.8% full
112 departures · 9,596 passengers
SEA → KTN
73.5% full
111 departures · 11,887 passengers
Nonstop KTN–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 Ketchikan (KTN) from Seattle (SEA)?
KTN to SEA is 679 miles (1,093 km / 590 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from KTN to SEA?
A nonstop covers the 679-mile great-circle distance in roughly 2h 09m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies KTN–SEA?
In May 2026, the Boeing 737-700 flew the largest share of departures (52.5%), followed by the Boeing 737-800 (21.1%).
What mileage do I earn flying KTN–SEA?
Distance-based programs credit off the 679-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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