Charleston (CHS) to Seattle (SEA)
Flight time
≈ 5h 37m
Bearing
307° NW
Charleston (CHS) to Seattle (SEA) is 2,411 miles (3,879 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies CHS–SEA
Filed traffic dataIn July 2026, Alaska Airlines was the only carrier flying nonstop CHS–SEA; the Boeing 737-900ER was the most common aircraft at 56% of departures; flights ran 88% full.
Departures
62
July 2026
Seats
10,849
both directions
Passengers
9,513
both directions
Load factor
87.7%
RPM ÷ ASM
Who flies CHS–SEA?
Alaska Airlines was the only carrier to fly nonstop CHS–SEA in July 2026 (62 departures).
- AS
62 departures · 10,849 seats
Share of departures100.0%87.7%
Load
What plane flies CHS–SEA?
In July 2026, the Boeing 737-900ER flew 56% of CHS–SEA departures — more than any other aircraft type.
- Boeing 737-900ER
35 departures · 87.8% load
56.5% - Boeing 737 MAX 9
16 departures · 88.9% load
25.8% - Boeing 737-800
9 departures · 85.8% load
14.5% - Boeing 737 MAX 8
2 departures · 83.5% load
3.2%
How has CHS–SEA traffic changed?
Nonstop CHS–SEA departures fell from 63 in August 2025 to 62 in July 2026.
Monthly nonstop CHS–SEA traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
63 departures · 10,029 passengers
89.4%
Load
September 2025
60 departures · 8,595 passengers
81.0%
Load
October 2025
58 departures · 8,522 passengers
82.5%
Load
November 2025
46 departures · 6,752 passengers
82.8%
Load
December 2025
62 departures · 8,626 passengers
79.5%
Load
January 2026
48 departures · 5,508 passengers
65.6%
Load
February 2026
50 departures · 6,644 passengers
75.9%
Load
March 2026
62 departures · 9,293 passengers
84.5%
Load
April 2026
60 departures · 9,117 passengers
85.6%
Load
May 2026
62 departures · 9,332 passengers
85.0%
Load
June 2026
60 departures · 9,015 passengers
87.8%
Load
July 2026
62 departures · 9,513 passengers
87.7%
Load
By direction
Each direction is filed separately — they rarely match.
CHS → SEA
88.1% full
31 departures · 4,786 passengers
SEA → CHS
87.3% full
31 departures · 4,727 passengers
Nonstop CHS–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Charleston (CHS) from Seattle (SEA)?
CHS to SEA is 2,411 miles (3,879 km / 2,095 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from CHS to SEA?
A nonstop covers the 2,411-mile great-circle distance in roughly 5h 37m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies CHS–SEA?
In July 2026, the Boeing 737-900ER flew the largest share of departures (56.5%), followed by the Boeing 737 MAX 9 (25.8%).
What mileage do I earn flying CHS–SEA?
Distance-based programs credit off the 2,411-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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