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.
MIA → ORD
Miami to Chicago · departing 6:40 AM
MIA → ORD flights departing 5–9 AM arrive on time 89.1% of the time, against 74.0% across the whole day — your departure window is 15.1 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 MIA → ORD
Time of day
5–9 AM is among the most reliable times to leave on MIA → ORD: 89.1% on time.
- 5–9 AM89.1%
- 9 AM–12 PM82.9%
- 12–3 PM76.6%
- 3–6 PM60.2%
- 6–9 PM64.7%
- 9 PM–5 AM75.2%
Day of week
- Monday73.5%
- Tuesday79.7%
- Wednesday76.1%
- Thursday74.3%
- Friday72.8%
- Saturday74.6%
- Sunday67.5%
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 – August 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →
Which flight
Flights on MIA → ORD, the ones scheduled closest to 6:40 AM first.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| AA581American AirlinesLive map | 6:40 AM | 88.6% | 0.80% |
| UA1983United AirlinesLive map | 12:30 PM350 min away | 81.7% | 1.22% |
| AA483American AirlinesLive map | 9:26 PM554 min away | 77.3% | 0.42% |
| UA2106United AirlinesLive map | 4:16 PM576 min away | 59.9% | 0.51% |
| AA3304American AirlinesLive map | 7:21 PM679 min away | 53.5% | 0.97% |
| AA2194American AirlinesLive map | 7:00 PM700 min away | 67.1% | 0.97% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 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 MIA, not a promise about your day.
2h 0m before your 6:40 AM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for MIA, 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
The National Weather Service has issued a wind advisory covering the airport.
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 Miami to Chicago.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| American Airlines | 9,311 | 74.8% | 1.24% | -7 min |
| United Airlines | 3,159 | 73.0% | 1.11% | -3 min |
| Spirit Airlines | 1,468 | 71.1% | 2.11% | -6 min |