Seattle (SEA) to Sitka (SIT)
Flight time
≈ 2h 31m
Bearing
325° NW
Seattle (SEA) to Sitka (SIT) is 860 miles (1,384 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SEA–SIT
Filed traffic dataIn June 2026, Alaska Airlines was the only carrier flying nonstop SEA–SIT; the Boeing 737-800 was the most common aircraft at 39% of departures; flights ran 68% full.
Departures
117
June 2026
Seats
19,900
both directions
Passengers
13,523
both directions
Load factor
68.0%
RPM ÷ ASM
Who flies SEA–SIT?
Alaska Airlines was the only carrier to fly nonstop SEA–SIT in June 2026 (117 departures).
- AS
117 departures · 19,900 seats
Share of departures100.0%68.0%
Load
What plane flies SEA–SIT?
In June 2026, the Boeing 737-800 flew 39% of SEA–SIT departures — more than any other aircraft type.
- Boeing 737-800
46 departures · 63.5% load
39.3% - Boeing 737 MAX 9
37 departures · 70.0% load
31.6% - Boeing 737-900ER
26 departures · 74.3% load
22.2% - Boeing 737 MAX 8
8 departures · 59.9% load
6.8%
How has SEA–SIT traffic changed?
Nonstop SEA–SIT departures fell from 121 in July 2025 to 117 in June 2026.
Monthly nonstop SEA–SIT traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
121 departures · 16,213 passengers
76.3%
Load
August 2025
99 departures · 14,874 passengers
84.4%
Load
September 2025
62 departures · 6,370 passengers
58.7%
Load
October 2025
6 departures · 412 passengers
40.0%
Load
November 2025
1 departures · 55 passengers
44.4%
Load
December 2025
3 departures · 363 passengers
85.2%
Load
January 2026
9 departures · 848 passengers
65.2%
Load
February 2026
0 departures · 0 passengers
—
Load
March 2026
0 departures · 0 passengers
—
Load
April 2026
0 departures · 0 passengers
—
Load
May 2026
75 departures · 5,725 passengers
45.4%
Load
June 2026
117 departures · 13,523 passengers
68.0%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → SIT
69.4% full
59 departures · 6,969 passengers
SIT → SEA
66.5% full
58 departures · 6,554 passengers
Nonstop SEA–SIT 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 Seattle (SEA) from Sitka (SIT)?
SEA to SIT is 860 miles (1,384 km / 747 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SEA to SIT?
A nonstop covers the 860-mile great-circle distance in roughly 2h 31m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SEA–SIT?
In June 2026, the Boeing 737-800 flew the largest share of departures (39.3%), followed by the Boeing 737 MAX 9 (31.6%).
What mileage do I earn flying SEA–SIT?
Distance-based programs credit off the 860-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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