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 12:30 PM
BOS → ORD flights departing 12–3 PM arrive on time 81.3% of the time, against 76.9% across the whole day — your departure window is 4.4 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
On BOS → ORD, flights leaving 5–9 AM arrived on time 89.4% of the time, against 81.3% for those leaving 12–3 PM: 8.1 points more often.
- 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 12:30 PM first.
Within 90 minutes of 12:30 PM, UA1732 (usually 12:30 PM) has the best record: 88.6% on time and 0.93% cancelled over 967 flights, against 76.9% on time for BOS → ORD as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| UA1732United AirlinesLive map | 12:30 PM | 88.6% | 0.93% |
| DL2816Delta Air LinesLive map | 12:55 PM25 min away | 81.8% | 3.30% |
| UA503United AirlinesLive map | 10:35 AM115 min away | 85.1% | 0.00% |
| UA1349United AirlinesLive map | 9:50 AM160 min away | 86.7% | 1.81% |
| MQ3711Envoy AirLive map | 3:30 PM180 min away | 76.5% | 2.06% |
| DL2646Delta Air LinesLive map | 4:05 PM215 min away | 64.7% | 2.76% |
| UA2040United AirlinesLive map | 4:27 PM237 min away | 58.0% | 1.76% |
| AA1239American AirlinesLive map | 8:30 AM240 min away | 91.1% | 1.18% |
| DL2570Delta Air LinesLive map | 7:30 AM300 min away | 82.6% | 1.97% |
| B6811JetBlueLive map | 5:50 PM320 min away | 52.5% | 2.61% |
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 0m before your 12:30 PM 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 |