Missoula (MSO) to San Diego (SAN) flights
Horizon Air flies nonstop from Missoula Montana Airport to San Diego International Airport, with about 4 flights a week in July 2026. The 992-mile flight takes about 3h 2m gate to gate.
- Distance
- 992 mi · 1,596 km
- Flight time
- 3h 2m
- Airlines
- 1
- Seats filled
- 92%
Airlines flying MSO to SAN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 4 | Embraer E175 | 1,530 | 3h 2m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
Is MSO to SAN on time?
From September 2025 to August 2026, 52% of 25 flights arrived within 15 minutes of schedule and 0% were cancelled. Most delay time was caused by air traffic control and airport congestion (62%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 25 | 52% | 21 min | 0% |
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
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 3 | 194 | |
| June 2026 | 3 | 176 | |
| July 2026 | 19 | 1,354 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.