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1,702 km · Domestic

Billings Logan (BIL) – Chicago O'Hare (ORD)

In July 2026, 62 flights operated between Billings Logan and Chicago O'Hare (both directions), and 87.1% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods10 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January–––
February–––
March–––
April–––
May2022▲ 10.0%
June16360▼ 63.2%
July18562▼ 66.5%
August184––
September180––
October121–in progress
November2––
December–––

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods10 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January–––
February–––
March–––
April–––
May75.0%86.4%▲ 15.2%
June81.0%78.3%▼ 3.3%
July73.0%87.1%▲ 19.3%
August86.4%––
September87.2%––
October90.9%–in progress
November100.0%––
December–––

Cancelled flights by month

The most recent periods10 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January–––
February–––
March–––
April–––
May00–
June00–
July10▼ 100.0%
August2––
September0––
October0–in progress
November0––
December–––

Airlines on this route

  1. Envoy Air 68.7%
  2. SkyWest Airlines 31.3%

May 1, 2025 – Jul 31, 2026

By direction

BIL → ORD

Scheduled flights
501
Flights operated
500
Cancelled
1 · 0.2%
On-time departures
85.8%

ORD → BIL

Scheduled flights
501
Flights operated
499
Cancelled
2 · 0.4%
On-time departures
80.4%

BIL → ORD and ORD → BIL counted separately.

Airlines on this route

May 1, 2025 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Envoy Air MQ 688 68.7% 81.8% 3
SkyWest Airlines OO 314 31.3% 86.0% 0

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · May 22, 2025 → Jul 31, 2026

Lowest average delay12:00–13:0014.9min · 346 recorded · 346 measured
Recorded flights1,002BIL–ORD

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 33 recorded · 32 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 68 recorded · 68 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 195 recorded · 195 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 115 recorded · 115 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 31 recorded · 31 measured · Source: the US BTS 12:00 · 81.8% · 346 recorded · 346 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 111 recorded · 109 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 33 recorded · 32 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 68 recorded · 68 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 195 recorded · 195 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 115 recorded · 115 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 31 recorded · 31 measured · Source: the US BTS 12:00 · 14.9 min · 346 recorded · 346 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 111 recorded · 109 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 33 · 33 recorded · 32 measured · Source: the US BTS 06:00 · 90 · 90 recorded · 90 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 68 · 68 recorded · 68 measured · Source: the US BTS 09:00 · 195 · 195 recorded · 195 measured · Source: the US BTS 10:00 · 115 · 115 recorded · 115 measured · Source: the US BTS 11:00 · 31 · 31 recorded · 31 measured · Source: the US BTS 12:00 · 346 · 346 recorded · 346 measured · Source: the US BTS 13:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · 111 · 111 recorded · 109 measured · Source: the US BTS 21:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—3233
06:00Fewer than 200 measured departures—9090
07:00No observations———
08:00Fewer than 200 measured departures—6868
09:00Fewer than 200 measured departures—195195
10:00Fewer than 200 measured departures—115115
11:00Fewer than 200 measured departures—3131
12:0081.8%14.9 min346346
13:00Fewer than 200 measured departures—11
14:00No observations———
15:00No observations———
16:00Fewer than 200 measured departures—44
17:00No observations———
18:00Fewer than 200 measured departures—44
19:00No observations———
20:00Fewer than 200 measured departures—109111
21:00Fewer than 200 measured departures—44
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 141 · 141 recorded · 141 measured · Source: the US BTS Tuesday · 140 · 140 recorded · 140 measured · Source: the US BTS Wednesday · 140 · 140 recorded · 140 measured · Source: the US BTS Thursday · 147 · 147 recorded · 146 measured · Source: the US BTS Friday · 146 · 146 recorded · 146 measured · Source: the US BTS Saturday · 146 · 146 recorded · 145 measured · Source: the US BTS Sunday · 142 · 142 recorded · 141 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—141141
TuesdayFewer than 200 measured departures—140140
WednesdayFewer than 200 measured departures—140140
ThursdayFewer than 200 measured departures—146147
FridayFewer than 200 measured departures—146146
SaturdayFewer than 200 measured departures—145146
SundayFewer than 200 measured departures—141142

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · No observations · 0 recorded · 0 measured · Source: the US BTS Feb · No observations · 0 recorded · 0 measured · Source: the US BTS Mar · No observations · 0 recorded · 0 measured · Source: the US BTS Apr · No observations · 0 recorded · 0 measured · Source: the US BTS May · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS Jun · 80.3% · 223 recorded · 223 measured · Source: the US BTS Jul · 76.5% · 248 recorded · 247 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 186 recorded · 184 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 121 recorded · 121 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS Dec · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · No observations · 0 recorded · 0 measured · Source: the US BTS Feb · No observations · 0 recorded · 0 measured · Source: the US BTS Mar · No observations · 0 recorded · 0 measured · Source: the US BTS Apr · No observations · 0 recorded · 0 measured · Source: the US BTS May · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS Jun · 11.9 min · 223 recorded · 223 measured · Source: the US BTS Jul · 20.5 min · 248 recorded · 247 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 186 recorded · 184 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 121 recorded · 121 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS Dec · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · No observations · 0 recorded · 0 measured · Source: the US BTS Feb · No observations · 0 recorded · 0 measured · Source: the US BTS Mar · No observations · 0 recorded · 0 measured · Source: the US BTS Apr · No observations · 0 recorded · 0 measured · Source: the US BTS May · 42 · 42 recorded · 42 measured · Source: the US BTS Jun · 223 · 223 recorded · 223 measured · Source: the US BTS Jul · 248 · 248 recorded · 247 measured · Source: the US BTS Aug · 186 · 186 recorded · 184 measured · Source: the US BTS Sep · 180 · 180 recorded · 180 measured · Source: the US BTS Oct · 121 · 121 recorded · 121 measured · Source: the US BTS Nov · 2 · 2 recorded · 2 measured · Source: the US BTS Dec · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanNo observations———
FebNo observations———
MarNo observations———
AprNo observations———
MayFewer than 200 measured departures—4242
Jun80.3%11.9 min223223
Jul76.5%20.5 min247248
AugFewer than 200 measured departures—184186
SepFewer than 200 measured departures—180180
OctFewer than 200 measured departures—121121
NovFewer than 200 measured departures—22
DecNo observations———

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 82.8% 830
  • Delayed >15 min 16.9% 169
  • Cancelled 0.3% 3
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

13
13 of 13
Flight numbersBy direction DeparturesOn time
OO5984 ORD → BIL 157 81.5%
OO5599 BIL → ORD 122 90.2%
MQ3428 BIL → ORD 72 80.6%
MQ3428 ORD → BIL 72 86.1%
MQ3433 BIL → ORD 62 67.7%
MQ3433 ORD → BIL 62 75.8%
MQ3904 ORD → BIL 62 62.3%
MQ3914 BIL → ORD 61 93.4%
OO4699 BIL → ORD 35 91.4%
MQ3676 ORD → BIL 33 87.9%
MQ3727 BIL → ORD 33 87.9%
MQ3817 ORD → BIL 33 81.8%
MQ3819 BIL → ORD 33 97.0%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 62 −66.5% 0 87.1%
June 2026 60 −63.2% 0 78.3%
May 2026 22 +10.0% 0 86.4%
November 2025 2 0 100.0%
October 2025 121 0 90.9%
September 2025 180 0 87.2%
August 2025 184 2 86.4%
July 2025 185 1 73.0%
June 2025 163 0 81.0%
May 2025 20 0 75.0%

How to read this chart

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