MSO to SNA flight delays & on-time performance
Nonstop flights from Missoula Montana Airport to John Wayne Orange County International Airport · 935 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MSO or SNA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Missoula (MSO) to Santa Ana (SNA) arrived on time 56% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0% were cancelled, and 11% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Friday was the most reliable day to fly (57% on time) and Monday the least (54%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (78%).
Which airline is most on time from MSO to SNA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 56% | 0.0% | 69 min | 11.1% | 27 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 1pm60%15 flights
- 2pm50%12 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday54%0.0% cancelled
- Friday57%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)78%
- Late-arriving aircraft11%
- Air traffic control & airport congestion10%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
MSO to SNA: common questions
- How often are MSO to SNA flights on time?
- 56% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Missoula to Santa Ana cancelled?
- 0.0% of scheduled flights were cancelled (0 of 27).
- How long are typical delays?
- Across all flights the average arrival delay was 69 min (early arrivals count as zero). Flights that were late arrived 148 min behind schedule on average, and 11.1% of flights were an hour or more late.
- How long is taxi time at MSO?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SNA to MSO — 85% on time
More flights from Missoula
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MSO → SNA, nonstop flights by US airlines that report to the DOT. How we calculate this.