Houston (HOU) to Seattle (SEA)
Flight time
≈ 4h 35m
Bearing
318° NW
Houston (HOU) to Seattle (SEA) is 1,892 miles (3,046 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies HOU–SEA
Filed traffic dataIn June 2026, Southwest Airlines was the only carrier flying nonstop HOU–SEA; the Boeing 737-800 was the most common aircraft at 56% of departures; flights ran 91% full.
Departures
54
June 2026
Seats
9,450
both directions
Passengers
8,573
both directions
Load factor
90.7%
RPM ÷ ASM
Who flies HOU–SEA?
Southwest Airlines was the only carrier to fly nonstop HOU–SEA in June 2026 (54 departures).
- WN
54 departures · 9,450 seats
Share of departures100.0%90.7%
Load
What plane flies HOU–SEA?
In June 2026, the Boeing 737-800 flew 56% of HOU–SEA departures — more than any other aircraft type.
- Boeing 737-800
30 departures · 92.5% load
55.6% - Boeing 737 MAX 8
24 departures · 88.5% load
44.4%
How has HOU–SEA traffic changed?
Nonstop HOU–SEA departures fell from 62 in July 2025 to 54 in June 2026.
Monthly nonstop HOU–SEA traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
62 departures · 9,490 passengers
90.4%
Load
August 2025
63 departures · 8,773 passengers
89.9%
Load
September 2025
60 departures · 6,820 passengers
75.3%
Load
October 2025
2 departures · 180 passengers
56.6%
Load
November 2025
0 departures · 0 passengers
—
Load
December 2025
0 departures · 0 passengers
—
Load
January 2026
0 departures · 0 passengers
—
Load
February 2026
0 departures · 0 passengers
—
Load
March 2026
0 departures · 0 passengers
—
Load
April 2026
0 departures · 0 passengers
—
Load
May 2026
0 departures · 0 passengers
—
Load
June 2026
54 departures · 8,573 passengers
90.7%
Load
By direction
Each direction is filed separately — they rarely match.
HOU → SEA
88.5% full
27 departures · 4,182 passengers
SEA → HOU
92.9% full
27 departures · 4,391 passengers
Nonstop HOU–SEA 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 Houston (HOU) from Seattle (SEA)?
HOU to SEA is 1,892 miles (3,046 km / 1,644 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from HOU to SEA?
A nonstop covers the 1,892-mile great-circle distance in roughly 4h 35m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies HOU–SEA?
In June 2026, the Boeing 737-800 flew the largest share of departures (55.6%), followed by the Boeing 737 MAX 8 (44.4%).
What mileage do I earn flying HOU–SEA?
Distance-based programs credit off the 1,892-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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