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.
BOS → ORD
Boston to Chicago · departing 6:00 AM
BOS → ORD flights departing 5–9 AM arrive on time 89.4% of the time, against 76.9% across the whole day — your departure window is 12.5 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 BOS → ORD
Time of day
5–9 AM is among the most reliable times to leave on BOS → ORD: 89.4% on time.
- 5–9 AM89.4%
- 9 AM–12 PM85.0%
- 12–3 PM81.3%
- 3–6 PM63.2%
- 6–9 PM59.7%
- 9 PM–5 AMToo few flights to score
Day of week
- Monday77.3%
- Tuesday80.4%
- Wednesday79.1%
- Thursday75.3%
- Friday73.9%
- Saturday78.9%
- Sunday74.2%
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 BOS → ORD, the ones scheduled closest to 6:00 AM first.
Within 90 minutes of 6:00 AM, UA1414 (usually 6:00 AM) has the best record: 93.4% on time and 2.07% cancelled over 677 flights, against 76.9% on time for BOS → ORD as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| B6311JetBlueLive map | 6:00 AM | 85.2% | 1.03% |
| UA1414United AirlinesLive map | 6:00 AM | 93.4% | 2.07% |
| AA1509American AirlinesLive map | 7:00 AM60 min away | 91.1% | 0.55% |
| AA3324American AirlinesLive map | 5:00 AM60 min away | 91.7% | 2.16% |
| DL2570Delta Air LinesLive map | 7:30 AM90 min away | 82.6% | 1.97% |
| AA1239American AirlinesLive map | 8:30 AM150 min away | 91.1% | 1.18% |
| UA1349United AirlinesLive map | 9:50 AM230 min away | 86.7% | 1.81% |
| UA503United AirlinesLive map | 10:35 AM275 min away | 85.1% | 0.00% |
| UA1732United AirlinesLive map | 12:30 PM390 min away | 88.6% | 0.93% |
| DL2816Delta Air LinesLive map | 12:55 PM415 min away | 81.8% | 3.30% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Showing 10 of 17 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 BOS, not a promise about your day.
2h 20m before your 6:00 AM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for BOS, 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 Boston to Chicago.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| United Airlines | 7,613 | 79.0% | 1.56% | -6 min |
| American Airlines | 5,429 | 77.0% | 2.03% | -10 min |
| Delta Air Lines | 2,912 | 71.0% | 2.03% | -2 min |
| Republic Airways | 2,417 | 78.7% | 3.31% | -8 min |
| JetBlue | 1,824 | 73.1% | 1.43% | -5 min |
| Envoy Air | 1,416 | 79.2% | 2.33% | -11 min |