Route reliability record
LAS→RNO
Las Vegas to Reno
- Flights
- 4,136
- Period
- September 2025 to August 2026
- Distance
- 345 mi
- Carriers
- 3
This route lands a B+, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 4,136 LAS to RNO flights, of which Spirit Airlines flew 417 at 88.0% on time.
Best time to fly LAS to RNO: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 96.0% of the time and Wednesday flights 85.8%, against 78.9% for the route overall.
The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.9%
Arrivals under 15 minutes late, of 4,097 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
0.87%
National rate is 1.89%
Best carrier
Spirit
88.0% on time across 417 flights
These figures cover 4,136 flights between September 2025 and August 2026. The median arrival is 8 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Which airline is most reliable on LAS to RNO
The choice of carrier is not cosmetic here. Spirit Airlines arrives on time 88.0% of the time; Southwest Airlines manages 78.3%. Sample sizes sit next to every figure, because a two-point gap across 3,376 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlines | 417 | 88.0% | 88 min | 1.68% | A |
| Southwest Airlines | 3,376 | 78.3% | 52 min | 0.68% | B+ |
| Frontier Airlinesthin sample | 343 | 73.6% | 104 min | 1.75% | C |
Spirit leads Southwest by 10 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.
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Best ways to make this trip
The most reliable ways to fly Las Vegas to Reno
Every airline on this route, ranked by how often a scheduled flight actually operated and arrived on time, with its best departure time and most punctual flight number. No nearby airport pair beat these.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. LAS → RNOLas Vegas to Reno | Spirit Airlines | 86.5% | 88.0% | 1.68% | 8am–11am, Wed | — |
| 2. LAS → RNOLas Vegas to Reno | Southwest Airlines | 77.8% | 78.3% | 0.68% | 5am–8am, Wed | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 28 points, against 10 points between the best and worst carrier.
- 5am–8am524 flights96.0%
- 8am–11am732 flights89.4%
- 11am–2pm746 flights79.3%
- 2pm–5pm667 flights71.2%
- 5pm–8pm781 flights73.2%
- 8pm–5am686 flights68.2%
Scale runs 60% to 100%.
Book the early departure. Flights leaving between 5am–8am arrive on time 96.0% of the time, against 68.2% for the overnight window. That is 28 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 781 flights scheduled in it.
Explore
Filter LAS to RNO by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On LAS to RNO, the best departure window is 5am–8am at 96.0% on time and the worst is 8pm–5am at 68.2%, a wide gap of 27.8 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am96.0%
- 8–11am89.4%
- 11am–2pm79.3%
- 2–5pm71.2%
- 5–8pm73.2%
- 8pm–5am68.2%
best all US flightsScale 60% to 100%.
Across the year
When delays peak on this route
This route's year swings by 15 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
June is the worst month at 71.7% on time, 15 points below January, the best at 87.1%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 411 flights.
Across the week, Wednesday is the strongest day at 85.8% on time and Friday the weakest at 73.4%, a spread of 12 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 64% of the 51,000 delay minutes carriers reported here, and the remaining four split what is left.
- 64%Late-arriving aircraft
- 26%Carrier
- 9%National Airspace System
- 1%Extreme weather
- 0%Security
64% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 51,000 reported delay minutes here, that single category outweighs weather by 64 to one. The split is drawn from 51,139 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 96.0% on time here.
Cancellations are rare at 0.87%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here actually costs
6.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 345 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 81.4% on time across 4,136 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 4,136 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in RNO after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. January runs 87.1% on time and June 71.7%, a swing of 15 points. If the dates move at all, move them out of June before you think about anything else. 4,097 completed flights over 12 months sit behind that.
Common questions
LAS to RNO questions
How often is LAS to RNO delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.1% of the 4,136 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.
Which airline is most reliable on LAS to RNO?
Spirit Airlines leads at 88.0% on time across 417 flights. Southwest Airlines is at the other end on 78.3%, a gap of 10 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on LAS to RNO?
The 5am–8am departure window is the strongest at 96.0% on time. The 8pm–5am window is the weakest at 68.2%, 28 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are June delays on LAS to RNO?
June is the weakest month at 71.7% on time, compared with 87.1% in January. Across the year that is 15 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- RNO to LAS — the return legseparate record
- Harry Reid International (LAS) delay statistics
- Spirit Airlines on LAS to RNO88.0%
- Southwest Airlines on LAS to RNO78.3%
- Frontier Airlines on LAS to RNO73.6%
- LAS to LAX, a related route77.9%
- LAX to RNO, a related route89.1%
- LAS to DEN, a related route76.5%
- Spirit Airlines on-time record88.0%
- Southwest Airlines on-time record78.3%
- Frontier Airlines on-time record73.6%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Direction matters. LAS to RNO and RNO to LAS are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.