Seattle (SEA) to Redmond (RDM) flights

SkyWest Airlines, Horizon Air fly nonstop from Seattle-Tacoma International Airport to Roberts Field, with about 55 flights a week in July 2026. The 228-mile flight takes about 1h 8m gate to gate.

From
SEA
Seattle
Seattle-Tacoma International Airport
To
RDM
Redmond
Roberts Field
Distance
228 mi · 367 km
Flight time
1h 8m
Airlines
2
Seats filled
70%
Flights a week, July 2026
2,714 flights and 173,031 passengers in 12 months
RDMRDMSEA
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying SEA to RDM

AirlineFlights a weekAircraftPassengers (12 months)Flight time
SkyWest Airlines34Embraer E17574,8211h 11m
Horizon Air21Embraer E17550,3671h 3m
Alaska AirlinesSeasonal or endedn/aBoeing 737-900ER, Boeing 737-800, Boeing 737 MAX 947,8431h 5m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

SEA to RDM flight schedule

13 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 7:55am and the last at 10:53pm. Times are local and can change; check with the airline before you book.

FlightDepartsArrivesDays flown in August 2026On time (12 months)
AS 2079Alaska Airlines · operated by Horizon Air7:55am9:04am1884%
AS 3063Alaska Airlines · operated by SkyWest Airlines8:10am9:29am1385%
AS 275Alaska Airlines11:24am12:34pm1369%
DL 3735Delta Air Lines · operated by SkyWest Airlines11:40am1:12pm3188%
AS 2400Alaska Airlines · operated by Horizon Air11:56am1:08pm1861%
AS 2344Alaska Airlines · operated by Horizon Air3:37pm4:44pm1362%
AS 3126Alaska Airlines · operated by SkyWest Airlines3:57pm5:09pm1863%
DL 4141Delta Air Lines · operated by SkyWest Airlines5:25pm6:45pm3188%
AS 3027Alaska Airlines · operated by SkyWest Airlines7:50pm9:02pm1781%
AS 2388Alaska Airlines · operated by Horizon Air8:05pm9:13pm1391%
DL 4047Delta Air Lines · operated by SkyWest Airlines9:35pm10:58pm3189%
AS 2273Alaska Airlines · operated by Horizon Air10:52pm11:58pm1392%
AS 2094Alaska Airlines · operated by Horizon Air10:53pm11:59pm1883%

Is SEA to RDM on time?

From September 2025 to August 2026, 84% of 2,727 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 9pm were the most punctual (88%), those around 3pm the least (77%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (44%).

AirlineFlightsOn timeAverage delayCancelled
Alaska Airlines1,66682%8 min1.5%
Delta Air Lines1,06188%8 min1.7%

Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.

On-time arrivals by departure time

Scheduled departureFlightsOn time, relativeOn time
7am to 8am126
86%
8am to 9am89
95%
9am to 10am265
87%
11am to 12pm398
80%
3pm to 4pm262
77%
4pm to 5pm94
92%
5pm to 6pm361
84%
7pm to 8pm130
84%
8pm to 9pm132
87%
9pm to 10pm383
88%
10pm to 11pm284
87%
11pm to 12am79
77%

Flights by month

MonthFlightsFlights, relativePassengers
August 2025272
19,478
September 2025266
16,998
October 2025240
14,871
November 2025214
13,016
December 2025229
15,688
January 2026194
11,054
February 2026173
11,213
March 2026210
13,544
April 2026203
11,654
May 2026231
14,661
June 2026240
15,523
July 2026243
15,350

Related

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.