Arcata/Eureka (ACV) to Seattle (SEA)

456mi
734 km396 nm

Flight time

≈ 1h 43m

Bearing

11° N

Arcata/Eureka (ACV) to Seattle (SEA) is 456 miles (734 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: ACV → SEAACVSEA

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What actually flies ACV–SEA

Filed traffic data

In June 2026, SkyWest Airlines was the only carrier flying nonstop ACV–SEA; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 77% full.

Departures

54

June 2026

Seats

4,104

both directions

Passengers

3,178

both directions

Load factor

77.4%

RPM ÷ ASM

Who flies ACV–SEA?

SkyWest Airlines was the only carrier to fly nonstop ACV–SEA in June 2026 (54 departures).

  • OO

    SkyWest Airlines

    54 departures · 4,104 seats

    77.4%

    Load

What plane flies ACV–SEA?

In June 2026, the Embraer E175 flew 100% of ACV–SEA departures.

How has ACV–SEA traffic changed?

Nonstop ACV–SEA departures rose from 46 in April 2026 to 54 in June 2026.

Monthly nonstop ACV–SEA traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • April 2026

    46 departures · 2,255 passengers

    64.5%

    Load

  • May 2026

    61 departures · 3,418 passengers

    73.7%

    Load

  • June 2026

    54 departures · 3,178 passengers

    77.4%

    Load

By direction

Each direction is filed separately — they rarely match.

ACV → SEA

78.6% full

27 departures · 1,613 passengers

SEA → ACV

76.3% full

27 departures · 1,565 passengers

Nonstop ACV–SEA traffic has been filed since 2026.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2026. Public domain (US Government work).

The airports

ACV

US

California Redwood Coast-Humboldt County Airport

Coordinates

40.98°N, 124.11°W

Hemisphere

N · W

SEA

US

Seattle–Tacoma International Airport

Coordinates

47.45°N, 122.31°W

Hemisphere

N · W

Frequently asked

How far is Arcata/Eureka (ACV) from Seattle (SEA)?

ACV to SEA is 456 miles (734 km / 396 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from ACV to SEA?

A nonstop covers the 456-mile great-circle distance in roughly 1h 43m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies ACV–SEA?

In June 2026, the Embraer E175 flew the largest share of departures (100.0%).

What mileage do I earn flying ACV–SEA?

Distance-based programs credit off the 456-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

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