Seattle-Tacoma International ⇄ Roberts Fld/Redmond Municipal SEA–RDM
Airlines flew 5,417 flights between Seattle-Tacoma International SEA in Seattle, WA and Roberts Fld/Redmond Municipal RDM in Redmond, OR in the twelve months to July 2026, both directions together: 350,658 passengers in 490,437 seats, 71% of them filled, and 55,726 pounds of freight. 228 miles, about 42 minutes in the air, on 4 airlines: SkyWest Airlines Inc. (2,844), Horizon Air (1,661), Alaska Airlines Inc. (911), United Air Lines Inc. (1). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 388 |
| 2/25 | 356 |
| 3/25 | 408 |
| 4/25 | 430 |
| 5/25 | 525 |
| 6/25 | 497 |
| 7/25 | 487 |
| 8/25 | 542 |
| 9/25 | 530 |
| 10/25 | 480 |
| 11/25 | 425 |
| 12/25 | 454 |
| 1/26 | 388 |
| 2/26 | 346 |
| 3/26 | 420 |
| 4/26 | 405 |
| 5/26 | 461 |
| 6/26 | 479 |
| 7/26 | 487 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 24,872 |
| 2/25 | 23,724 |
| 3/25 | 29,150 |
| 4/25 | 27,190 |
| 5/25 | 33,538 |
| 6/25 | 37,380 |
| 7/25 | 38,330 |
| 8/25 | 39,166 |
| 9/25 | 35,324 |
| 10/25 | 30,616 |
| 11/25 | 26,715 |
| 12/25 | 30,038 |
| 1/26 | 24,098 |
| 2/26 | 22,734 |
| 3/26 | 27,553 |
| 4/26 | 23,149 |
| 5/26 | 29,020 |
| 6/26 | 31,254 |
| 7/26 | 30,991 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| SkyWest Airlines Inc. OO | 2,844 | 148,811 | 71% | scheduled passenger service |
| Horizon Air QX | 1,661 | 101,680 | 81% | scheduled passenger service |
| Alaska Airlines Inc. AS | 911 | 100,148 | 64% | scheduled passenger service |
| United Air Lines Inc. UA | 1 | 19 | 11% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Embraer ERJ-175 | 4,505 | 74 | 250,491 |
| Boeing 737-900ER | 335 | 178 | 37,077 |
| Boeing 737-800 | 276 | 160 | 29,816 |
| Boeing B737 Max 900 | 247 | 178 | 27,553 |
| Boeing B737 Max 800 | 40 | 160 | 4,475 |
| Boeing 737-700/700LR/Max 7 | 12 | 124 | 1,083 |
| Boeing 737-900 | 2 | 178 | 163 |
SEA → RDM this direction alone · flown January 2025 to July 2026
2,715 flights of 2,743 scheduled, 173,050 passengers in 245,707 seats, 28,043 pounds of freight. SkyWest Airlines Inc. 1,423; Horizon Air 836; Alaska Airlines Inc. 455; United Air Lines Inc. 1.
RDM → SEA this direction alone · flown January 2025 to July 2026
2,702 flights of 2,732 scheduled, 177,608 passengers in 244,730 seats, 27,683 pounds of freight. SkyWest Airlines Inc. 1,421; Horizon Air 825; Alaska Airlines Inc. 456.
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 Roberts Fld/Redmond Municipal RDM; all routes.