The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Seattle-Tacoma International ⇄ William P Hobby SEA–HOU

Airlines flew 241 flights between Seattle-Tacoma International SEA in Seattle, WA and William P Hobby HOU in Houston, TX in the twelve months to July 2026, both directions together: 34,617 passengers in 39,434 seats, 88% of them filled, and 131,159 pounds of freight. 1,894 miles, about 227 minutes in the air, on 2 airlines: Southwest Airlines Co. (240), Sun Country Airlines d/b/a MN Airlines (1). Planning to fly it yourself? The weather and winds along this route right now.

241
flights, twelve months
SEA-HOU: 120 · HOU-SEA: 121
34,617
passengers
88% of seats filled
1,894
miles
about 227 minutes airborne
2
airlines
3 aircraft types

Flights by month both directions

0163247633/257/2510/25627/26
By month, as a table
flights
3/252
5/253
6/2552
7/2562
8/2563
9/2560
10/252
6/2654
7/2662

Passengers by month

02,5685,1367,70310,2713/257/2510/2510,2717/26
By month, as a table
passengers
3/2577
5/25148
6/257,746
7/259,490
8/258,773
9/256,820
10/25180
6/268,573
7/2610,271

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN24034,57888%scheduled passenger service
Sun Country Airlines d/b/a MN Airlines SY13921%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-700/700LR/Max 78614310,255
Boeing 737-8008017512,447
Boeing B737 Max 8007517511,915

SEA → HOU this direction alone · flown March 2025 to July 2026

120 flights of 120 scheduled, 17,064 passengers in 19,272 seats, 69,791 pounds of freight. Southwest Airlines Co. 120.

HOU → SEA this direction alone · flown March 2025 to July 2026

121 flights of 120 scheduled, 17,553 passengers in 20,162 seats, 61,368 pounds of freight. Southwest Airlines Co. 120; Sun Country Airlines d/b/a MN Airlines 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Seattle-Tacoma International SEA and William P Hobby HOU; all routes.