Carrier route record
MQPWM→ORD
Envoy Air · Portland to Chicago
- Flights
- 200
- Period
- July 2025 to June 2026
- Share of route
- 13%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on PWM to ORD lands a B−, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 200 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 558 at 82.3% on time.
Set against the rest of the country, Envoy's PWM to ORD record is 5 points better than the US average of 77.6%. That gap is worth roughly 46 fewer late arrivals for every thousand flights.
Key figures
On time
82.2%
Arrivals under 15 minutes late, of 191 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
4.00%
National rate is 1.81%
Whole route
77.2%
Every carrier on PWM to ORD, 1,486 flights
These figures cover 200 flights between July 2025 and June 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Envoy against every carrier on PWM to ORD
Envoy flew 200 of the 1,486 flights on PWM to ORD, about 13% of it. Its 82.2% on time is 5 points better than the route as a whole, which runs 77.2%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Republic at 82.3% to SkyWest at 65.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: 6 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways | 558 | 82.3% | 83 min | 3.41% | B− |
| Envoy Air (this page)thin sample | 200 | 82.2% | 97 min | 4.00% | B− |
| United Airlines | 428 | 76.6% | 94 min | 2.10% | B |
| SkyWest Airlinesthin sample | 300 | 65.2% | 89 min | 4.00% | C− |
Republic Airways cancels 3.4% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Departure window
When Envoy runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 200 flights.
- 5am–8am79 flights87.0%
- 8am–11am—
- 11am–2pm23 flights—
- 2pm–5pm—
- 5pm–8pm98 flights77.2%
- 8pm–5am—
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 87.0% of the time, against 77.2% for the evening window. That is 10 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 98 flights scheduled in it.
Across the year
Envoy on PWM to ORD through the year
- Jul–Sep 20255 flights—
- Jan–Mar 202671 flights76.8%
- Apr–Jun 2026124 flights84.7%
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 82.2% on time across 200 flights.
Split by quarter, Envoy on PWM to ORD logged 5 flights in Jul–Sep 2025, 71 flights in Jan–Mar 2026 and 124 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 82.2% annual figure is the one to use.
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 3,308 reported delay minutes.
- 35%Carrier
- 28%National Airspace System
- 27%Late-arriving aircraft
- 10%Extreme weather
The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,164 of the 3,308 delay minutes reported here. The split is drawn from 3,308 reported delay minutes.
Cancellations run at 4.00%, against 1.81% 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
7.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 900 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 82.3% on time across 199 flights, within half 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. 200 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 PWM to ORD
Put together: the delay figures matter less here than the 4.00% 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. 191 completed flights over 12 months sit behind that.
Related
Where to go next
- PWM to ORD, every carrier
- Envoy on ORD to PWM, the return leg
- Republic Airways on PWM to ORD82.3%
- United Airlines on PWM to ORD76.6%
- SkyWest Airlines on PWM to ORD65.2%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- The best time of day to fly, according to 7.04 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.