Carrier route record
MQORD→BWI
Envoy Air · Chicago to Baltimore
- 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 ORD to BWI 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 6 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Envoy on ORD to BWI from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.3%
Arrivals under 15 minutes late, of 809 completed flights
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
3.80%
National rate is 1.89%
Whole route
72.3%
Every carrier on ORD to BWI, 2,679 flights
These figures cover 841 flights between September 2025 and August 2026. Beyond the headline rate, 8.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Envoy against every carrier on ORD to BWI
Envoy flew 841 of the 2,679 flights on ORD to BWI, about 31% of it. Its 77.3% on time is 5 points better than the route as a whole, which runs 72.3%. Ranked by on-time rate it is number three of eight carriers on the route, where the range runs from Spirit at 100.0% to American at 57.7%. 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 |
|---|---|---|---|---|---|
| Spirit Airlinesthin sample | 9 | 100.0% | — | 0.00% | A+ |
| Southwest Airlinesthin sample | 62 | 80.6% | 53 min | 0.00% | B+ |
| Envoy Air (this page) | 841 | 77.3% | 63 min | 3.80% | B− |
| United Airlines | 1,257 | 70.3% | 65 min | 1.59% | C |
| Republic Airwaysthin sample | 336 | 69.6% | 89 min | 5.65% | C− |
| SkyWest Airlinesthin sample | 16 | 68.8% | 57 min | 0.00% | C+ |
| Frontier Airlinesthin sample | 132 | 64.3% | 92 min | 4.55% | D− |
| American Airlinesthin sample | 26 | 57.7% | 92 min | 0.00% | D+ |
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 18 points, against half a point between the best and worst carrier.
- 5am–8am76 flights89.3%
- 8am–11am184 flights83.9%
- 11am–2pm58 flights76.4%
- 2pm–5pm296 flights73.1%
- 5pm–8pm52 flights78.4%
- 8pm–5am175 flights71.5%
Scale runs 65% to 95%.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.3% of the time, against 71.5% for the overnight window. That is 18 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 296 flights scheduled in it.
Across the year
Envoy on ORD to BWI through the year
December is the weak month at 60.7% on time, against 87.5% in July. 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 84.0% on time and Wednesday the weakest at 68.4%, a spread of 16 points.
Arrival by arrival
How late Envoy on ORD to BWI runs when it is late
Envoy on ORD to BWI often beats the schedule: 249 of 809 completed flights, 31%, arrived 15 minutes or more early. The 184 late arrivals split 61 under half an hour, 57 between 30 and 60 minutes, and 66 an hour or more.
- 15+ min early249 flights30.8%
- Within 15 min376 flights46.5%
- 15–29 min late61 flights7.5%
- 30–59 min late57 flights7.0%
- 1–2 hours late39 flights4.8%
- 2+ hours late27 flights3.3%
Scale runs 0% to 100%.
Share of 809 completed flights by arrival against schedule.
39 of 176 late departures made up the time and arrived on time, 22% of them. In the other direction, 47 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 BWI.
The worst days
Worst days for Envoy on ORD to BWI
The latest arrival of the period was on 14 January 2026, 10 hours 3 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 January 2026 | 10 hours 3 minutes | Extreme weather |
| 6 March 2026 | 4 hours 52 minutes | Late-arriving aircraft |
| 31 August 2026 | 4 hours 50 minutes | Late-arriving aircraft |
| 29 November 2025 | 3 hours 52 minutes | Extreme weather |
| 2 April 2026 | 3 hours 30 minutes | Late-arriving aircraft |
Delay causes
Why Envoy runs late on this route
Late-arriving aircraft accounts for 43% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Late-arriving aircraft
- 24%National Airspace System
- 18%Extreme weather
- 14%Carrier
- 0%Security
Extreme weather accounts for 18% 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 3.0 times the usual weather exposure. The split is drawn from 11,619 reported delay minutes.
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 12,000 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
8.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
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 76.0% 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 ORD to BWI
Put together: the delay figures matter less here than the 3.80% cancellation rate. A late arrival costs you about an hour; 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. 809 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to BWI, every carrier
- Envoy on BWI to ORD, the return leg
- United Airlines on ORD to BWI70.3%
- Republic Airways on ORD to BWI69.6%
- Frontier Airlines on ORD to BWI64.3%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- Baltimore/Washington International Thurgood Marshall (BWI) 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.