Seattle (SEA) to Sacramento (SMF)
Flight time
≈ 2h 01m
Bearing
176° S
Seattle (SEA) to Sacramento (SMF) is 606 miles (975 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SEA–SMF
Filed traffic dataIn May 2026, SkyWest Airlines operated the most departures, one of 4 carriers flying nonstop SEA–SMF; the Embraer E175 was the most common aircraft at 44% of departures; flights ran 78% full.
Departures
793
May 2026
Seats
97,817
both directions
Passengers
76,604
both directions
Load factor
78.3%
RPM ÷ ASM
Who flies SEA–SMF?
SkyWest Airlines operated the most nonstop SEA–SMF departures in May 2026 (330), one of 4 carriers on the route.
- OO
330 departures · 24,252 seats
Share of departures41.6%86.1%
Load
- AS
272 departures · 45,410 seats
Share of departures34.3%77.4%
Load
- WN
175 departures · 26,939 seats
Share of departures22.1%72.4%
Load
- QX
16 departures · 1,216 seats
Share of departures2.0%88.0%
Load
What plane flies SEA–SMF?
In May 2026, the Embraer E175 flew 44% of SEA–SMF departures — more than any other aircraft type.
- Embraer E175
346 departures · 86.2% load
43.6% - Boeing 737-700
133 departures · 76.9% load
16.8% - Boeing 737-900ER
93 departures · 76.0% load
11.7% - Boeing 737-800
85 departures · 75.7% load
10.7% - Boeing 737 MAX 9
81 departures · 74.8% load
10.2% - Boeing 737 MAX 8
55 departures · 73.0% load
6.9%
How has SEA–SMF traffic changed?
Nonstop SEA–SMF departures fell from 885 in June 2025 to 793 in May 2026.
Monthly nonstop SEA–SMF traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
885 departures · 85,544 passengers
78.4%
Load
July 2025
911 departures · 91,389 passengers
81.8%
Load
August 2025
851 departures · 87,291 passengers
85.0%
Load
September 2025
796 departures · 75,231 passengers
79.5%
Load
October 2025
798 departures · 70,976 passengers
76.8%
Load
November 2025
751 departures · 62,898 passengers
71.3%
Load
December 2025
684 departures · 65,112 passengers
82.6%
Load
January 2026
631 departures · 54,975 passengers
72.3%
Load
February 2026
606 departures · 56,402 passengers
75.3%
Load
March 2026
726 departures · 66,933 passengers
73.5%
Load
April 2026
740 departures · 67,958 passengers
71.5%
Load
May 2026
793 departures · 76,604 passengers
78.3%
Load
By direction
Each direction is filed separately — they rarely match.
SMF → SEA
80.3% full
397 departures · 39,494 passengers
SEA → SMF
76.3% full
396 departures · 37,110 passengers
Nonstop SEA–SMF 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 Seattle (SEA) from Sacramento (SMF)?
SEA to SMF is 606 miles (975 km / 526 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SEA to SMF?
A nonstop covers the 606-mile great-circle distance in roughly 2h 01m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SEA–SMF?
In May 2026, the Embraer E175 flew the largest share of departures (43.6%), followed by the Boeing 737-700 (16.8%).
What mileage do I earn flying SEA–SMF?
Distance-based programs credit off the 606-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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