My trip
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Tell FlyerIntel where and when you are flying. It will show how that route actually performs at that time of day and on that day of the week, what both airports are doing right now, and when to get to the airport.
SFO → LAS
San Francisco to Las Vegas · departing 5:45 AM
SFO → LAS flights departing 5–9 AM arrive on time 93.1% of the time, against 73.3% across the whole day — your departure window is 19.8 points better than average for this route.
Your slot
Add a date above to see how that hour has done on your day of the week, and what a nearby slot would change.
Other times on SFO → LAS
Time of day
5–9 AM is among the most reliable times to leave on SFO → LAS: 93.1% on time.
- 5–9 AM93.1%
- 9 AM–12 PM68.5%
- 12–3 PM66.3%
- 3–6 PM65.3%
- 6–9 PM71.2%
- 9 PM–5 AM69.7%
Day of week
- Monday71.4%
- Tuesday79.9%
- Wednesday79.3%
- Thursday67.0%
- Friday67.7%
- Saturday80.9%
- Sunday69.7%
Bars start below the lowest figure so a real gap is visible; read the percentage, not the bar length. A time with too few flights to score is left unscored rather than guessed at.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →
Which flight
Flights on SFO → LAS, the ones scheduled closest to 5:45 AM first.
Within 90 minutes of 5:45 AM, F94158 (usually 5:45 AM) has the best record: 64.3% on time and 1.38% cancelled over 654 flights, against 73.3% on time for SFO → LAS as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| F94158Frontier AirlinesLive map | 5:45 AM | 64.3% | 1.38% |
| F91850Frontier AirlinesLive map | 6:00 AM15 min away | 63.1% | 2.20% |
| AS718Alaska AirlinesLive map | 8:50 AM185 min away | 91.3% | 2.14% |
| WN4249Southwest AirlinesLive map | 9:45 AM240 min away | 50.0% | 2.80% |
| UA611United AirlinesLive map | 11:00 AM315 min away | 78.9% | 0.53% |
| F92486Frontier AirlinesLive map | 10:59 PM406 min away | 58.5% | 0.72% |
| F94402Frontier AirlinesLive map | 10:23 PM442 min away | 65.2% | 0.54% |
| F94156Frontier AirlinesLive map | 10:05 PM460 min away | 60.7% | 2.98% |
| F93020Frontier AirlinesLive map | 1:48 PM483 min away | 58.0% | 1.13% |
| UA406United AirlinesLive map | 8:45 PM540 min away | 76.6% | 0.25% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Showing 10 of 13 flight numbers. “Usually departs” is the scheduled time each flight number most often had over the period; airlines retime flights, so confirm the time on your booking. Flight numbers with fewer than 90 operations on this route are left out. This is history, not a forecast for your flight.
When to get to the airport
A starting point for SFO, not a promise about your day.
1h 45m before your 5:45 AM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for SFO, so this figure does not account for the queue on the day.
- It does not include your journey to the airport, parking, or a shuttle from a remote lot.
- International departures, and travel with children, checked pets or special assistance, need more time.
Both airports right now
Aviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedAviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedSource: NOAA Aviation Weather Center · Conditions describe the airfield, not your flight, and change quickly.
Other ways to make this journey
Airport pairings serving San Francisco to Las Vegas.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| United Airlines | 7,598 | 80.7% | 0.92% | -6 min |
| Southwest Airlines | 4,060 | 67.2% | 0.59% | 1 min |
| Frontier Airlines | 3,059 | 62.5% | 1.57% | 1 min |
| Alaska Airlines | 2,950 | 73.1% | 1.36% | -1 min |
| SkyWest Airlines | 588 | 75.7% | 0.51% | 0 min |