My trip
Plan a trip
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.
LAS → ORD
Las Vegas to Chicago · departing 11:59 PM
LAS → ORD flights departing 9 PM–5 AM arrive on time 82.5% of the time, against 79.6% across the whole day — your departure window is 2.9 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 LAS → ORD
Time of day
On LAS → ORD, flights leaving 5–9 AM arrived on time 90.0% of the time, against 82.5% for those leaving 9 PM–5 AM: 7.5 points more often.
- 5–9 AM90.0%
- 9 AM–12 PM82.6%
- 12–3 PM67.2%
- 3–6 PM72.3%
- 6–9 PM77.6%
- 9 PM–5 AM82.5%
Day of week
- Monday76.5%
- Tuesday84.0%
- Wednesday82.7%
- Thursday77.4%
- Friday76.6%
- Saturday83.6%
- Sunday77.4%
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 LAS → ORD, the ones scheduled closest to 11:59 PM first.
Within 90 minutes of 11:59 PM, UA2102 (usually 11:59 PM) has the best record: 89.6% on time and 1.46% cancelled over 1,096 flights, against 79.6% on time for LAS → ORD as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| UA2102United AirlinesLive map | 11:59 PM | 89.6% | 1.46% |
| F92146Frontier AirlinesLive map | 11:20 PM39 min away | 61.7% | 4.09% |
| AA2949American AirlinesLive map | 12:59 AM60 min away | 76.1% | 3.30% |
| UA664United AirlinesLive map | 7:00 AM421 min away | 92.3% | 0.59% |
| AA2258American AirlinesLive map | 7:00 AM421 min away | 87.9% | 0.69% |
| UA706United AirlinesLive map | 2:25 PM574 min away | 66.7% | 0.00% |
| UA1583United AirlinesLive map | 10:25 AM626 min away | 82.2% | 0.00% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · “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 LAS, not a promise about your day.
2h 0m before your 11:59 PM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for LAS, 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 Las Vegas to Chicago.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| United Airlines | 6,807 | 83.0% | 1.03% | -10 min |
| American Airlines | 5,269 | 77.5% | 1.29% | -9 min |
| Southwest Airlines | 1,971 | 76.1% | 0.81% | -5 min |
| Spirit Airlines | 1,875 | 80.7% | 0.85% | -6 min |
| Frontier Airlines | 457 | 61.8% | 3.94% | 4 min |