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Route on-time record

BTV to ORD: most on-time flights and the best time to fly

Burlington (Patrick Leahy Burlington International Airport) to Chicago (Chicago O'Hare International Airport). 1,242 nonstop flights in Jun 2025 to May 2026, 64% arrived within 15 minutes and 1.7% were cancelled. The most reliable flight number was United 215 at 6:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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BTV → ORD

Burlington to Chicago: 1,242 nonstop flights a year

On time (12 months)

64%

Cancelled

1.7%

avg delay 34 min

Best time to leave

9 AM to noon

80% on time vs 48% 3 to 6 PM

Most reliable airline

United

67% chance on time

Check BTV to ORD fares

Lowest nonstop fare seen in the next two months: $303 (American 4927 on 2026-10-28). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · United 215

    6:00 AM → 7:42 AM2h 42m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    81%

    chance on time

    On time (history)
    84%
    Cancelled
    0.9%
    Avg arrival delay
    10 min
    • Arrived on time 84% of the time (225 flights, Jun 2025 to May 2026).

    Strong track record · 225 flights

    Find United 215 fares Opens this date on Aviasales

  2. #2 · SkyWest 6193 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:50 AM → 8:48 AM2h 58m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    72%

    chance on time

    On time (history)
    79%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 79% of the time (43 flights, Jun 2025 to May 2026).
    • Never cancelled in 43 scheduled flights.

    Limited track record · 43 flights

    Find 6:50 AM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 6251 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:33 AM → 8:30 AM2h 57m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    70%

    chance on time

    On time (history)
    67%
    Cancelled
    2.8%
    Avg arrival delay
    78 min
    • Arrived on time 67% of the time (70 flights, Jun 2025 to May 2026).

    Moderate track record · 70 flights

    Find 6:33 AM flight fares Opens this date on Aviasales

  4. #4 · SkyWest 6218 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:43 PM → 9:38 PM2h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    62%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    19 min
    • Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
    • 92% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 11 flights

    Find 7:43 PM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 5290 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:30 PM → 2:16 PM2h 46m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    60%

    chance on time

    On time (history)
    70%
    Cancelled
    0.0%
    Avg arrival delay
    26 min
    • Arrived on time 70% of the time (20 flights, Jun 2025 to May 2026).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 20 flights

    Find 12:30 PM flight fares Opens this date on Aviasales

  6. #6 · United 329

    5:00 PM → 6:42 PM2h 42m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    56%

    chance on time

    On time (history)
    65%
    Cancelled
    0.0%
    Avg arrival delay
    42 min
    • Arrived on time 65% of the time (63 flights, Jun 2025 to May 2026).
    • Never cancelled in 63 scheduled flights.
    • Leaves in this route's least on-time window (3 to 6 PM: 48% on time; 9 AM to noon: 80%).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 63 flights

    Find United 329 fares Opens this date on Aviasales

  7. #7 · SkyWest 6451 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:13 PM → 8:07 PM2h 54m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    49%

    chance on time

    On time (history)
    55%
    Cancelled
    9.1%
    Avg arrival delay
    41 min
    • Arrived on time 55% of the time (40 flights, Jun 2025 to May 2026).
    • Cancelled 9.1% of the time (4 of 44).

    Limited track record · 40 flights

    Find 6:13 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines67%

    683 flights · 68% on time as flown · 1.0% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)57%

    473 flights · 58% on time as flown · 2.5% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM78%

    539 flights · avg delay 23 min

  • 9 AM to noon80%

    41 flights · avg delay 14 min

  • Noon to 3 PM69%

    78 flights · avg delay 36 min

  • 3 to 6 PM48%

    456 flights · avg delay 48 min

  • 6 to 9 PM55%

    128 flights · avg delay 36 min

Best day: Tuesday (80%). Worst: Sunday (69%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
76
F
79
M
76
A
81
M
82
J
68
J
62
A
67
S
76
O
76
N
76
D
72

What delays this route

  • Airline (crew, maintenance, boarding)38%
  • Air traffic control and airport volume32%
  • Late-arriving aircraft15%
  • Severe weather14%
  • Security1%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

Finding the most reliable connections from BTV to ORD…

BTV to ORD questions

What time of day is best to fly BTV to ORD?
9 AM to noon: 80% of flights arrived on time, against 48% for departures 3 to 6 PM.
Which airline is most on time from BTV to ORD?
United, with a season-adjusted 67% chance of operating and arriving on time over 683 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on BTV to ORD?
July (62% on time); the best was May (82%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from BTV

Live status: FAA delays and ground stops