BIS to LAS flight delays & on-time performance
Nonstop flights from Bismarck Municipal Airport to Harry Reid International Airport · 1,048 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BIS or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Bismarck/Mandan (BIS) to Las Vegas (LAS) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 7% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 12pm did best (85% on time); around 11am did worst (83%).
- Sunday was the most reliable day to fly (92% on time) and Thursday the least (80%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (60%).
Which airline is most on time from BIS to LAS?
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 | 82% | 0.9% | 16 min | 7.0% | 116 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 11am83%65 flights
- 12pm85%26 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday100%0.0% cancelled
- Tuesday67%0.0% cancelled
- Wednesday100%0.0% cancelled
- Thursday80%0.0% cancelled
- Friday33%0.0% cancelled
- Saturday43%0.0% cancelled
- Sunday92%2.0% 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)60%
- Air traffic control & airport congestion18%
- Late-arriving aircraft12%
- Security5%
- Extreme weather4%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)100%
- Extreme weather0%
- Air traffic control & airport congestion0%
- Security0%
BIS to LAS: common questions
- How often are BIS to LAS flights on time?
- 82% 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 Bismarck/Mandan to Las Vegas cancelled?
- 0.9% of scheduled flights were cancelled (1 of 116).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 86 min behind schedule on average, and 7.0% of flights were an hour or more late.
- How long is taxi time at BIS?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to BIS — 93% on time
More flights from Bismarck/Mandan
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BIS → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.