Carrier route record
OOBTV→ORD
SkyWest Airlines · Burlington to Chicago
- Flights
- 511
- Period
- September 2025 to August 2026
- Share of route
- 40%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on BTV to ORD draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 511 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so SkyWest on BTV to ORD runs 12 points behind the country as a whole. Across a thousand flights that is about 118 extra late arrivals.
Key figures
On time
65.5%
Arrivals under 15 minutes late, of 490 completed flights
Avg delay
111 min
Across delayed arrivals only, not all flights
Cancelled
3.72%
National rate is 1.89%
Whole route
68.3%
Every carrier on BTV to ORD, 1,282 flights
These figures cover 511 flights between September 2025 and August 2026. Beyond the headline rate, 17.1% 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
SkyWest against every carrier on BTV to ORD
SkyWest flew 511 of the 1,282 flights on BTV to ORD, about 40% of it. Its 65.5% on time is 3 points worse than the route as a whole, which runs 68.3%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Republic at 72.2% to Envoy at 64.2%. Two 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 |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 20 | 72.2% | 67 min | 10.00% | C− |
| United Airlines | 684 | 70.5% | 82 min | 0.73% | C+ |
| SkyWest Airlines (this page) | 511 | 65.5% | 111 min | 3.72% | C− |
| Envoy Airthin sample | 67 | 64.2% | 69 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 SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 16 points, against half a point between the best and worst carrier.
- 5am–8am173 flights74.9%
- 8am–11am—
- 11am–2pm94 flights69.9%
- 2pm–5pm39 flights59.0%
- 5pm–8pm174 flights58.5%
- 8pm–5am31 flights—
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 58.5% on time, against 74.9% 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 174 flights scheduled in it.
Across the year
SkyWest on BTV to ORD through the year
- Jul–Sep 202510 flights—
- Oct–Dec 2025118 flights58.5%
- Jan–Mar 202622 flights—
- Apr–Jun 2026218 flights68.6%
- Jul–Sep 2026143 flights66.2%
Scale runs 50% to 75%. 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 65.5% on time across 511 flights.
SkyWest on BTV to ORD did not run the same all year. Its best quarter was Apr–Jun 2026 at 68.6% on time and its weakest Oct–Dec 2025 at 58.5%, a swing of 10 points on roughly 170 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
Across the week, Wednesday is the strongest day at 73.2% on time and Sunday the weakest at 58.2%, a spread of 15 points.
Arrival by arrival
How late SkyWest on BTV to ORD runs when it is late
SkyWest on BTV to ORD often beats the schedule: 135 of 490 completed flights, 28%, arrived 15 minutes or more early. The 169 late arrivals split 37 under half an hour, 48 between 30 and 60 minutes, and 84 an hour or more.
- 15+ min early135 flights27.6%
- Within 15 min186 flights38.0%
- 15–29 min late37 flights7.6%
- 30–59 min late48 flights9.8%
- 1–2 hours late34 flights6.9%
- 2+ hours late50 flights10.2%
Scale runs 0% to 100%.
Share of 490 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 131 departures that left 15 minutes late or more, only 13 made it up before arrival. In the other direction, 51 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 SkyWest on BTV to ORD
The latest arrival of the period was on 13 June 2026, 15 hours 24 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 June 2026 | 15 hours 24 minutes | Late-arriving aircraft |
| 3 July 2026 | 14 hours 4 minutes | Carrier |
| 30 May 2026 | 11 hours | Late-arriving aircraft |
| 22 October 2025 | 10 hours 18 minutes | Carrier |
| 10 October 2025 | 7 hours 20 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 47% of the 19,000 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Carrier
- 25%Late-arriving aircraft
- 18%National Airspace System
- 10%Extreme weather
The largest share of delay minutes, 47%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 8,811 of the 19,000 delay minutes reported here. The split is drawn from 18,751 reported delay minutes.
Cancellations run at 3.72%, 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
17.1% 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 763 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 64.3% on time across 511 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. 511 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 SkyWest on BTV to ORD
Put together: the delay figures matter less here than the 3.72% cancellation rate. A late arrival costs you close to two hours; 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. 490 completed flights over 12 months sit behind that.
Related
Where to go next
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.