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2,307 km · Domestic

Boise Air Terminal/Gowen Field (BOI) – Chicago O'Hare (ORD)

In July 2026, 181 flights operated between Boise Air Terminal/Gowen Field and Chicago O'Hare (both directions), and 78.5% 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 periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January104192▲ 84.6%
February101168▲ 66.3%
March125178▲ 42.4%
April120178▲ 48.3%
May124186▲ 50.0%
June172177▲ 2.9%
July186181▼ 2.7%
August185––
September181––
October184–in progress
November171––
December208––
Year to date (Jan–Jul)9321,260▲ 35.2%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January90.4%75.5%▼ 16.5%
February84.2%85.1%▲ 1.1%
March83.2%70.8%▼ 14.9%
April85.0%77.5%▼ 8.8%
May83.9%81.7%▼ 2.6%
June87.8%81.9%▼ 6.7%
July72.6%78.5%▲ 8.1%
August76.8%––
September79.6%––
October84.8%–in progress
November74.9%––
December63.9%––
Year-to-date average (Jan–Jul)83.9%78.7%▼ 6.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January02–
February00–
March08–
April03–
May00–
June04–
July05–
August1––
September0––
October0–in progress
November5––
December2––
Year to date (Jan–Jul)022

Airlines on this route

  1. SkyWest Airlines 57.9%
  2. United Airlines 18.2%
  3. Envoy Air 12.3%
  4. American Airlines 11.7%

Oct 1, 2024 – Jul 31, 2026

By direction

BOI → ORD

Scheduled flights
1,738
Flights operated
1,725
Cancelled
13 · 0.7%
On-time departures
83.6%

ORD → BOI

Scheduled flights
1,738
Flights operated
1,721
Cancelled
17 · 1.0%
On-time departures
75.8%

BOI → ORD and ORD → BOI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 2,011 57.9% 81.9% 27
United Airlines UA 631 18.2% 82.8% 3
Envoy Air MQ 428 12.3% 71.3% 0
American Airlines AA 406 11.7% 72.9% 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 · Oct 12, 2024 → Jul 31, 2026

Lowest average delay08:00–09:004.6min · 1,047 recorded · 1,041 measured
Gap to highest-delay hour29.1min08:00 ↔ 13:00
Recorded flights3,476BOI–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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 43 recorded · 39 measured · Source: the US BTS 08:00 · 89.3% · 1,047 recorded · 1,041 measured · Source: the US BTS 09:00 · 82.9% · 514 recorded · 514 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 78 recorded · 78 measured · Source: the US BTS 12:00 · 85.5% · 661 recorded · 657 measured · Source: the US BTS 13:00 · 64.1% · 312 recorded · 312 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 122 recorded · 122 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 34 recorded · 34 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 65.2% · 592 recorded · 578 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 11 recorded · 10 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 1 recorded · 0 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 43 recorded · 39 measured · Source: the US BTS 08:00 · 4.6 min · 1,047 recorded · 1,041 measured · Source: the US BTS 09:00 · 10.7 min · 514 recorded · 514 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 78 recorded · 78 measured · Source: the US BTS 12:00 · 8.9 min · 661 recorded · 657 measured · Source: the US BTS 13:00 · 33.7 min · 312 recorded · 312 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 122 recorded · 122 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 34 recorded · 34 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 28.2 min · 592 recorded · 578 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 11 recorded · 10 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 1 recorded · 0 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 07:00 · 43 · 43 recorded · 39 measured · Source: the US BTS 08:00 · 1,047 · 1,047 recorded · 1,041 measured · Source: the US BTS 09:00 · 514 · 514 recorded · 514 measured · Source: the US BTS 10:00 · 58 · 58 recorded · 58 measured · Source: the US BTS 11:00 · 78 · 78 recorded · 78 measured · Source: the US BTS 12:00 · 661 · 661 recorded · 657 measured · Source: the US BTS 13:00 · 312 · 312 recorded · 312 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · 122 · 122 recorded · 122 measured · Source: the US BTS 16:00 · 34 · 34 recorded · 34 measured · Source: the US BTS 17:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 592 · 592 recorded · 578 measured · Source: the US BTS 20:00 · 11 · 11 recorded · 10 measured · Source: the US BTS 21:00 · 1 · 1 recorded · 0 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

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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———
05:00No observations———
06:00Fewer than 200 measured departures—11
07:00Fewer than 200 measured departures—3943
08:0089.3%4.6 min1,0411,047
09:0082.9%10.7 min514514
10:00Fewer than 200 measured departures—5858
11:00Fewer than 200 measured departures—7878
12:0085.5%8.9 min657661
13:0064.1%33.7 min312312
14:00No observations———
15:00Fewer than 200 measured departures—122122
16:00Fewer than 200 measured departures—3434
17:00Fewer than 200 measured departures—22
18:00No observations———
19:0065.2%28.2 min578592
20:00Fewer than 200 measured departures—1011
21:00Fewer than 200 measured departures—01
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 78.4% · 496 recorded · 490 measured · Source: the US BTS Tuesday · 81.7% · 490 recorded · 487 measured · Source: the US BTS Wednesday · 80.5% · 494 recorded · 492 measured · Source: the US BTS Thursday · 83.6% · 500 recorded · 494 measured · Source: the US BTS Friday · 77.6% · 502 recorded · 499 measured · Source: the US BTS Saturday · 81.1% · 496 recorded · 491 measured · Source: the US BTS Sunday · 75.1% · 498 recorded · 493 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
Monday · 14.7 min · 496 recorded · 490 measured · Source: the US BTS Tuesday · 14.6 min · 490 recorded · 487 measured · Source: the US BTS Wednesday · 14.7 min · 494 recorded · 492 measured · Source: the US BTS Thursday · 7.7 min · 500 recorded · 494 measured · Source: the US BTS Friday · 16.1 min · 502 recorded · 499 measured · Source: the US BTS Saturday · 13.8 min · 496 recorded · 491 measured · Source: the US BTS Sunday · 18.8 min · 498 recorded · 493 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
Monday · 496 · 496 recorded · 490 measured · Source: the US BTS Tuesday · 490 · 490 recorded · 487 measured · Source: the US BTS Wednesday · 494 · 494 recorded · 492 measured · Source: the US BTS Thursday · 500 · 500 recorded · 494 measured · Source: the US BTS Friday · 502 · 502 recorded · 499 measured · Source: the US BTS Saturday · 496 · 496 recorded · 491 measured · Source: the US BTS Sunday · 498 · 498 recorded · 493 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.4%14.7 min490496
Tuesday81.7%14.6 min487490
Wednesday80.5%14.7 min492494
Thursday83.6%7.7 min494500
Friday77.6%16.1 min499502
Saturday81.1%13.8 min491496
Sunday75.1%18.8 min493498

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 · 80.7% · 298 recorded · 296 measured · Source: the US BTS Feb · 84.8% · 269 recorded · 269 measured · Source: the US BTS Mar · 75.9% · 311 recorded · 303 measured · Source: the US BTS Apr · 80.5% · 301 recorded · 298 measured · Source: the US BTS May · 82.6% · 310 recorded · 310 measured · Source: the US BTS Jun · 84.8% · 353 recorded · 349 measured · Source: the US BTS Jul · 75.5% · 372 recorded · 367 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 186 recorded · 185 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 181 recorded · 181 measured · Source: the US BTS Oct · 87.2% · 265 recorded · 265 measured · Source: the US BTS Nov · 79.6% · 294 recorded · 289 measured · Source: the US BTS Dec · 69.8% · 336 recorded · 334 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 10.5 min · 298 recorded · 296 measured · Source: the US BTS Feb · 6.5 min · 269 recorded · 269 measured · Source: the US BTS Mar · 20.3 min · 311 recorded · 303 measured · Source: the US BTS Apr · 12.0 min · 301 recorded · 298 measured · Source: the US BTS May · 10.8 min · 310 recorded · 310 measured · Source: the US BTS Jun · 12.3 min · 353 recorded · 349 measured · Source: the US BTS Jul · 16.9 min · 372 recorded · 367 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 186 recorded · 185 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 181 recorded · 181 measured · Source: the US BTS Oct · 10.9 min · 265 recorded · 265 measured · Source: the US BTS Nov · 20.7 min · 294 recorded · 289 measured · Source: the US BTS Dec · 21.4 min · 336 recorded · 334 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 · 298 · 298 recorded · 296 measured · Source: the US BTS Feb · 269 · 269 recorded · 269 measured · Source: the US BTS Mar · 311 · 311 recorded · 303 measured · Source: the US BTS Apr · 301 · 301 recorded · 298 measured · Source: the US BTS May · 310 · 310 recorded · 310 measured · Source: the US BTS Jun · 353 · 353 recorded · 349 measured · Source: the US BTS Jul · 372 · 372 recorded · 367 measured · Source: the US BTS Aug · 186 · 186 recorded · 185 measured · Source: the US BTS Sep · 181 · 181 recorded · 181 measured · Source: the US BTS Oct · 265 · 265 recorded · 265 measured · Source: the US BTS Nov · 294 · 294 recorded · 289 measured · Source: the US BTS Dec · 336 · 336 recorded · 334 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan80.7%10.5 min296298
Feb84.8%6.5 min269269
Mar75.9%20.3 min303311
Apr80.5%12.0 min298301
May82.6%10.8 min310310
Jun84.8%12.3 min349353
Jul75.5%16.9 min367372
AugFewer than 200 measured departures—185186
SepFewer than 200 measured departures—181181
Oct87.2%10.9 min265265
Nov79.6%20.7 min289294
Dec69.8%21.4 min334336

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 79.0% 2,746
  • Delayed >15 min 20.1% 700
  • Cancelled 0.9% 30
  • 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

30
30 of 30
Flight numbersBy direction DeparturesOn time
OO5386 BOI → ORD 590 93.5%
OO5290 ORD → BOI 542 66.2%
OO5928 ORD → BOI 360 83.1%
MQ4324 BOI → ORD 214 64.0%
OO4806 BOI → ORD 170 88.1%
OO5792 BOI → ORD 170 88.2%
UA1705 ORD → BOI 134 84.3%
UA573 BOI → ORD 121 81.0%
AA2340 BOI → ORD 72 68.1%
AA2340 ORD → BOI 72 81.9%
MQ3354 ORD → BOI 62 91.9%
AA2116 ORD → BOI 44 75.0%
AA2116 BOI → ORD 44 63.6%
UA2137 ORD → BOI 37 83.8%
UA440 BOI → ORD 37 75.7%
MQ3341 ORD → BOI 36 66.7%
OO5855 BOI → ORD 36 94.4%
UA2085 ORD → BOI 36 80.6%
UA323 BOI → ORD 36 77.1%
UA1547 BOI → ORD 35 88.6%
UA2775 ORD → BOI 35 85.3%
UA451 BOI → ORD 35 82.4%
AA2262 BOI → ORD 33 75.8%
AA2262 ORD → BOI 33 84.9%
OO5326 ORD → BOI 32 93.8%
OO5450 ORD → BOI 32 65.6%
MQ3365 ORD → BOI 30 80.0%
MQ4324 ORD → BOI 30 76.7%
UA2602 ORD → BOI 30 83.3%
UA348 BOI → ORD 30 96.7%

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 181 −2.7% 5 78.5%
June 2026 177 +2.9% 4 81.9%
May 2026 186 +50.0% 0 81.7%
April 2026 178 +48.3% 3 77.5%
March 2026 178 +42.4% 8 70.8%
February 2026 168 +66.3% 0 85.1%
January 2026 192 +84.6% 2 75.5%
December 2025 208 +65.1% 2 63.9%
November 2025 171 +44.9% 5 74.9%
October 2025 184 +127.2% 0 84.8%
September 2025 181 0 79.6%
August 2025 185 1 76.8%
July 2025 186 0 72.6%
June 2025 172 0 87.8%
May 2025 124 0 83.9%
April 2025 120 0 85.0%
March 2025 125 0 83.2%
February 2025 101 0 84.2%
January 2025 104 0 90.4%
December 2024 126 0 79.4%
November 2024 118 0 86.4%
October 2024 81 0 92.6%

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