Route reliability record
LAS→OAK
Las Vegas to Oakland
- Flights
- 3,228
- Period
- September 2025 to August 2026
- Distance
- 407 mi
- Carriers
- 3
This route sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.3%. The late ones land roughly 50 minutes behind schedule. That rests on 3,228 LAS to OAK flights, with a median arrival right on schedule.
Best time to fly LAS to OAK: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 93.8% of the time and Wednesday flights 81.8%, against 71.6% for the route overall.
The national on-time rate over the same period is 77.3%, so this route runs 6 points behind the country as a whole. Across a thousand flights that is about 57 extra late arrivals.
Key figures
On time
71.6%
Arrivals under 15 minutes late, of 3,215 completed flights
Avg delay
52 min
Across delayed arrivals only, not all flights
Cancelled
0.40%
National rate is 1.89%
Best carrier
Southwest
71.6% on time across 3,168 flights
These figures cover 3,228 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Carrier by carrier
Which airline is most reliable on LAS to OAK
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlinesthin sample | 40 | 74.4% | 62 min | 2.50% | C |
| Southwest Airlines | 3,168 | 71.6% | 51 min | 0.38% | C+ |
| Frontier Airlinesthin sample | 20 | 65.0% | 164 min | 0.00% | C+ |
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Best ways to make this trip
The most reliable ways to fly Las Vegas to Oakland
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 4 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. LAS → SJCLas Vegas to San Jose | Southwest Airlines | 77.5% | 77.8% | 0.34% | 5am–8am, Sat | — |
| 2. LAS → OAKLas Vegas to Oakland | Southwest Airlines | 71.3% | 71.6% | 0.38% | 5am–8am, Wed (route) | — |
| 3. LAS → SFOLas Vegas to San Francisco | Alaska Airlines | 62.7% | 63.3% | 0.91% | 5am–8am, Sat | AS 613 07:00 |
| 4. LAS → SFOLas Vegas to San Francisco | United Airlines | 62.3% | 62.6% | 0.43% | 5am–8am, Sat | UA 2047 16:05 |
| 5. LAS → SFOLas Vegas to San Francisco | Frontier Airlines | 58.4% | 59.4% | 1.66% | 5am–8am, Sat | F9 3801 18:00 |
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 37 points, against half a point between the best and worst carrier.
- 5am–8am439 flights93.8%
- 8am–11am569 flights87.5%
- 11am–2pm515 flights73.0%
- 2pm–5pm492 flights58.7%
- 5pm–8pm629 flights64.5%
- 8pm–5am584 flights56.6%
Scale runs 50% to 100%.
The 8pm–5am window is where this operation falls apart: 56.6% on time, against 93.8% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 629 flights scheduled in it.
Explore
Filter LAS to OAK 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 OAK, the best departure window is 5am–8am at 93.8% on time and the worst is 8pm–5am at 56.6%, a wide gap of 37.2 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am93.8%
- 8–11am87.5%
- 11am–2pm73.0%
- 2–5pm58.7%
- 5–8pm64.5%
- 8pm–5am56.6%
best all US flightsScale 50% to 100%.
Across the year
When delays peak on this route
This route's year swings by 22 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 60.3% on time, 22 points below January, the best at 82.2%. 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. September was the busiest month here, with 300 flights.
Across the week, Wednesday is the strongest day at 81.8% on time and Friday the weakest at 63.9%, a spread of 18 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 56% of the 47,000 delay minutes carriers reported here, and the remaining four split what is left.
- 56%Late-arriving aircraft
- 37%Carrier
- 6%National Airspace System
- 0%Extreme weather
- 0%Security
56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 47,000 reported delay minutes here, that single category outweighs weather by 56 to one. The split is drawn from 47,481 reported delay minutes.
The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 18,000 of the 47,000 delay minutes reported here.
Cancellations are rare at 0.40%, 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
7.7% 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 roughly 50 minutes, which a normal layover absorbs.
At 407 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 is a different operation and performs like one: it runs 76.5% on time across 3,264 flights, 5 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.
The sample behind these figures is 3,228 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 OAK 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 82.2% on time and June 60.3%, a swing of 22 points. If the dates move at all, move them out of June before you think about anything else. 3,215 completed flights over 12 months sit behind that.
Common questions
LAS to OAK questions
How often is LAS to OAK delayed?
Roughly one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 28.4% of the 3,228 flights in this analysis, against 22.7% nationally. Delayed flights are late by roughly 50 minutes on average.
How reliable is LAS to OAK compared with the rest of the country?
71.6% of flights arrive on time here against a national 77.3%, a difference of 6 points against it. That is worth a C+ on this site's grading scale.
What time of day has the fewest delays on LAS to OAK?
The 5am–8am departure window is the strongest at 93.8% on time. The 8pm–5am window is the weakest at 56.6%, 37 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 OAK?
June is the weakest month at 60.3% on time, compared with 82.2% in January. Across the year that is 22 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
- OAK to LAS — the return legseparate record
- Harry Reid International (LAS) delay statistics
- Oakland International (OAK) delay statistics
- LAS to LAX, a related route77.9%
- SAN to OAK, a related route72.9%
- LAS to DEN, a related route76.5%
- Spirit Airlines on-time record74.4%
- Southwest Airlines on-time record71.6%
- Frontier Airlines on-time record65.0%
- 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 OAK and OAK 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.