Carrier route record
MQBWI→ORD
Envoy Air · Baltimore to Chicago
- Flights
- 841
- Period
- September 2025 to August 2026
- Share of route
- 31%
- Carriers
- 8
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on BWI to ORD carries a cancellation problem, not just a delay problem: 3.8% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 841 flights, with a median arrival 8 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Envoy on BWI to ORD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
76.0%
Arrivals under 15 minutes late, of 807 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
3.80%
National rate is 1.89%
Whole route
75.5%
Every carrier on BWI to ORD, 2,677 flights
These figures cover 841 flights between September 2025 and August 2026. Beyond the headline rate, 10.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Envoy against every carrier on BWI to ORD
Envoy flew 841 of the 2,677 flights on BWI to ORD, about 31% of it. Its 76.0% on time is about level with the route as a whole at 75.5%. Ranked by on-time rate it is number five of eight carriers on the route, where the range runs from Southwest at 90.3% to American at 38.5%. Six of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlinesthin sample | 62 | 90.3% | 59 min | 0.00% | A+ |
| Spirit Airlinesthin sample | 10 | 90.0% | 61 min | 0.00% | A+ |
| Republic Airwaysthin sample | 336 | 83.0% | 99 min | 4.76% | B− |
| SkyWest Airlinesthin sample | 17 | 76.5% | 26 min | 0.00% | B+ |
| Envoy Air (this page) | 841 | 76.0% | 84 min | 3.80% | B− |
| United Airlines | 1,253 | 74.3% | 86 min | 1.12% | C |
| Frontier Airlinesthin sample | 132 | 64.0% | 199 min | 4.55% | D− |
| American Airlinesthin sample | 26 | 38.5% | 81 min | 0.00% | F+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Envoy runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 30 points, against half a point between the best and worst carrier.
- 5am–8am225 flights90.4%
- 8am–11am78 flights87.0%
- 11am–2pm186 flights77.6%
- 2pm–5pm11 flights—
- 5pm–8pm257 flights60.3%
- 8pm–5am84 flights70.4%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 60.3% on time, against 90.4% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 257 flights scheduled in it.
Across the year
Envoy on BWI to ORD through the year
December is the weak month at 58.3% on time, against 92.9% in June. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. November was the busiest month here, with 107 flights.
Across the week, Saturday is the strongest day at 85.7% on time and Thursday the weakest at 69.4%, a spread of 16 points.
Arrival by arrival
How late Envoy on BWI to ORD runs when it is late
Envoy on BWI to ORD often beats the schedule: 302 of 807 completed flights, 37%, arrived 15 minutes or more early. The 194 late arrivals split 51 under half an hour, 58 between 30 and 60 minutes, and 85 an hour or more.
- 15+ min early302 flights37.4%
- Within 15 min311 flights38.5%
- 15–29 min late51 flights6.3%
- 30–59 min late58 flights7.2%
- 1–2 hours late49 flights6.1%
- 2+ hours late36 flights4.5%
Scale runs 0% to 100%.
Share of 807 completed flights by arrival against schedule.
22 of 157 late departures made up the time and arrived on time, 14% of them. In the other direction, 59 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.
The worst days
Worst days for Envoy on BWI to ORD
The latest arrival of the period was on 31 March 2026, 18 hours 41 minutes behind schedule; most of its delay minutes were filed as extreme weather. Three of the five worst days fell in March 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 31 March 2026 | 18 hours 41 minutes | Extreme weather |
| 5 March 2026 | 15 hours 39 minutes | Carrier |
| 8 March 2026 | 9 hours 32 minutes | Late-arriving aircraft |
| 29 November 2025 | 7 hours 34 minutes | Extreme weather |
| 17 June 2026 | 6 hours | Extreme weather |
Delay causes
Why Envoy runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 16,000 reported delay minutes.
- 38%Late-arriving aircraft
- 28%National Airspace System
- 20%Extreme weather
- 15%Carrier
Extreme weather accounts for 20% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.3 times the usual weather exposure. The split is drawn from 16,236 reported delay minutes.
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations run at 3.80%, against 1.89% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
10.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 622 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 77.3% on time across 841 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 841 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Envoy on BWI to ORD
Put together: the delay figures matter less here than the 3.80% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 807 completed flights over 12 months sit behind that.
Related
Where to go next
- BWI to ORD, every carrier
- Envoy on ORD to BWI, the return leg
- Republic Airways on BWI to ORD83.0%
- United Airlines on BWI to ORD74.3%
- Frontier Airlines on BWI to ORD64.0%
- Envoy Air network-wide record
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.