Seattle (SEA) to Billings (BIL) flights
Horizon Air flies nonstop from Seattle-Tacoma International Airport to Billings Logan International Airport, with about 24 flights a week in July 2026. The 664-mile flight takes about 1h 49m gate to gate.
- Distance
- 664 mi · 1,069 km
- Flight time
- 1h 49m
- Airlines
- 1
- Seats filled
- 83%
Airlines flying SEA to BIL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 24 | Embraer E175 | 57,320 | 1h 49m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to BIL flight schedule
4 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:35am and the last at 8:59pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 2282Alaska Airlines · operated by Horizon Air | 8:35am | 11:31am | 10 | n/a |
| AS 2054Alaska Airlines · operated by Horizon Air | 10:09am | 1:05pm | 18 | 80% |
| AS 2353Alaska Airlines · operated by Horizon Air | 3:49pm | 6:42pm | 31 | 80% |
| AS 2457Alaska Airlines · operated by Horizon Air | 8:59pm | 11:51pm | 29 | 92% |
Is SEA to BIL on time?
From September 2025 to August 2026, 85% of 917 flights arrived within 15 minutes of schedule and 1% were cancelled. Flights leaving around 9pm were the most punctual (94%), those around 3pm the least (76%). Most delay time was caused by late-arriving aircraft (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 917 | 85% | 7 min | 1% |
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 departure | Flights | On time, relative | On time |
|---|---|---|---|
| 8am to 9am | 66 | 85% | |
| 9am to 10am | 45 | 98% | |
| 10am to 11am | 98 | 78% | |
| 11am to 12pm | 86 | 81% | |
| 12pm to 1pm | 81 | 85% | |
| 3pm to 4pm | 193 | 76% | |
| 8pm to 9pm | 199 | 90% | |
| 9pm to 10pm | 148 | 94% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 90 | 6,091 | |
| September 2025 | 82 | 5,423 | |
| October 2025 | 88 | 5,368 | |
| November 2025 | 82 | 5,261 | |
| December 2025 | 62 | 4,034 | |
| January 2026 | 61 | 3,466 | |
| February 2026 | 56 | 3,262 | |
| March 2026 | 58 | 3,657 | |
| April 2026 | 60 | 3,683 | |
| May 2026 | 81 | 5,225 | |
| June 2026 | 90 | 6,247 | |
| July 2026 | 107 | 6,715 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.