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1,444 km · Domestic

Chicago O'Hare (ORD) – Portland International Jetport (PWM)

In July 2026, 300 flights operated between Chicago O'Hare and Portland International Jetport (both directions), and 80.7% 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
January7567▼ 10.7%
February54115▲ 113.0%
March117222▲ 89.7%
April157283▲ 80.3%
May228330▲ 44.7%
June250286▲ 14.4%
July290300▲ 3.4%
August344––
September328––
October332–in progress
November168––
December122––
Year to date (Jan–Jul)1,1711,603▲ 36.9%

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
January80.0%76.1%▼ 4.9%
February92.6%90.4%▼ 2.4%
March86.3%76.6%▼ 11.2%
April92.4%83.7%▼ 9.4%
May92.1%88.2%▼ 4.2%
June80.4%82.9%▲ 3.1%
July71.4%80.7%▲ 13.0%
August77.9%––
September84.8%––
October81.9%–in progress
November76.8%––
December81.1%––
Year-to-date average (Jan–Jul)85.0%82.7%▼ 2.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January04–
February28▲ 300.0%
March011–
April315▲ 400.0%
May02–
June114▲ 1,300.0%
July410▲ 150.0%
August10––
September2––
October0–in progress
November13––
December2––
Year to date (Jan–Jul)1064▲ 540.0%

Airlines on this route

  1. Republic Airways 36.9%
  2. United Airlines 28.4%
  3. SkyWest Airlines 21.5%
  4. Envoy Air 13.2%

Oct 1, 2024 – Jul 31, 2026

By direction

ORD → PWM

Scheduled flights
2,306
Flights operated
2,263
Cancelled
43 · 1.9%
On-time departures
79.1%

PWM → ORD

Scheduled flights
2,306
Flights operated
2,248
Cancelled
58 · 2.5%
On-time departures
87.5%

ORD → PWM and PWM → ORD counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Republic Airways YX 1,704 36.9% 84.1% 45
United Airlines UA 1,309 28.4% 82.5% 17
SkyWest Airlines OO 992 21.5% 81.6% 24
Envoy Air MQ 607 13.2% 85.5% 15

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 delay07:00–08:001.0min · 205 recorded · 205 measured
Gap to highest-delay hour27.1min07:00 ↔ 17:00
Recorded flights4,612ORD–PWM

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 · 44 recorded · 39 measured · Source: the US BTS 06:00 · 94.1% · 608 recorded · 595 measured · Source: the US BTS 07:00 · 92.2% · 205 recorded · 205 measured · Source: the US BTS 08:00 · 89.1% · 239 recorded · 238 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 142 recorded · 140 measured · Source: the US BTS 10:00 · 81.0% · 227 recorded · 226 measured · Source: the US BTS 11:00 · 82.2% · 624 recorded · 619 measured · Source: the US BTS 12:00 · 89.4% · 239 recorded · 236 measured · Source: the US BTS 13:00 · 76.0% · 248 recorded · 242 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 26 recorded · 26 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 144 recorded · 140 measured · Source: the US BTS 16:00 · 86.0% · 569 recorded · 558 measured · Source: the US BTS 17:00 · 76.6% · 293 recorded · 278 measured · Source: the US BTS 18:00 · 75.9% · 624 recorded · 611 measured · Source: the US BTS 19:00 · 72.3% · 237 recorded · 224 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 114 recorded · 106 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 29 recorded · 28 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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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 · 44 recorded · 39 measured · Source: the US BTS 06:00 · 5.2 min · 608 recorded · 595 measured · Source: the US BTS 07:00 · 1.0 min · 205 recorded · 205 measured · Source: the US BTS 08:00 · 4.6 min · 239 recorded · 238 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 142 recorded · 140 measured · Source: the US BTS 10:00 · 8.3 min · 227 recorded · 226 measured · Source: the US BTS 11:00 · 8.7 min · 624 recorded · 619 measured · Source: the US BTS 12:00 · 2.8 min · 239 recorded · 236 measured · Source: the US BTS 13:00 · 13.4 min · 248 recorded · 242 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 26 recorded · 26 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 144 recorded · 140 measured · Source: the US BTS 16:00 · 11.0 min · 569 recorded · 558 measured · Source: the US BTS 17:00 · 28.0 min · 293 recorded · 278 measured · Source: the US BTS 18:00 · 18.5 min · 624 recorded · 611 measured · Source: the US BTS 19:00 · 18.6 min · 237 recorded · 224 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 114 recorded · 106 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 29 recorded · 28 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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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 · 44 · 44 recorded · 39 measured · Source: the US BTS 06:00 · 608 · 608 recorded · 595 measured · Source: the US BTS 07:00 · 205 · 205 recorded · 205 measured · Source: the US BTS 08:00 · 239 · 239 recorded · 238 measured · Source: the US BTS 09:00 · 142 · 142 recorded · 140 measured · Source: the US BTS 10:00 · 227 · 227 recorded · 226 measured · Source: the US BTS 11:00 · 624 · 624 recorded · 619 measured · Source: the US BTS 12:00 · 239 · 239 recorded · 236 measured · Source: the US BTS 13:00 · 248 · 248 recorded · 242 measured · Source: the US BTS 14:00 · 26 · 26 recorded · 26 measured · Source: the US BTS 15:00 · 144 · 144 recorded · 140 measured · Source: the US BTS 16:00 · 569 · 569 recorded · 558 measured · Source: the US BTS 17:00 · 293 · 293 recorded · 278 measured · Source: the US BTS 18:00 · 624 · 624 recorded · 611 measured · Source: the US BTS 19:00 · 237 · 237 recorded · 224 measured · Source: the US BTS 20:00 · 114 · 114 recorded · 106 measured · Source: the US BTS 21:00 · 29 · 29 recorded · 28 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———
05:00Fewer than 200 measured departures—3944
06:0094.1%5.2 min595608
07:0092.2%1.0 min205205
08:0089.1%4.6 min238239
09:00Fewer than 200 measured departures—140142
10:0081.0%8.3 min226227
11:0082.2%8.7 min619624
12:0089.4%2.8 min236239
13:0076.0%13.4 min242248
14:00Fewer than 200 measured departures—2626
15:00Fewer than 200 measured departures—140144
16:0086.0%11.0 min558569
17:0076.6%28.0 min278293
18:0075.9%18.5 min611624
19:0072.3%18.6 min224237
20:00Fewer than 200 measured departures—106114
21:00Fewer than 200 measured departures—2829
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 · 82.2% · 676 recorded · 646 measured · Source: the US BTS Tuesday · 85.3% · 619 recorded · 614 measured · Source: the US BTS Wednesday · 83.5% · 619 recorded · 612 measured · Source: the US BTS Thursday · 84.3% · 670 recorded · 655 measured · Source: the US BTS Friday · 83.8% · 676 recorded · 665 measured · Source: the US BTS Saturday · 82.4% · 679 recorded · 663 measured · Source: the US BTS Sunday · 81.7% · 673 recorded · 656 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 · 12.7 min · 676 recorded · 646 measured · Source: the US BTS Tuesday · 10.2 min · 619 recorded · 614 measured · Source: the US BTS Wednesday · 12.4 min · 619 recorded · 612 measured · Source: the US BTS Thursday · 9.6 min · 670 recorded · 655 measured · Source: the US BTS Friday · 9.4 min · 676 recorded · 665 measured · Source: the US BTS Saturday · 10.6 min · 679 recorded · 663 measured · Source: the US BTS Sunday · 14.1 min · 673 recorded · 656 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 676 · 676 recorded · 646 measured · Source: the US BTS Tuesday · 619 · 619 recorded · 614 measured · Source: the US BTS Wednesday · 619 · 619 recorded · 612 measured · Source: the US BTS Thursday · 670 · 670 recorded · 655 measured · Source: the US BTS Friday · 676 · 676 recorded · 665 measured · Source: the US BTS Saturday · 679 · 679 recorded · 663 measured · Source: the US BTS Sunday · 673 · 673 recorded · 656 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday82.2%12.7 min646676
Tuesday85.3%10.2 min614619
Wednesday83.5%12.4 min612619
Thursday84.3%9.6 min655670
Friday83.8%9.4 min665676
Saturday82.4%10.6 min663679
Sunday81.7%14.1 min656673

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 · Fewer than 200 measured departures · 146 recorded · 142 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 179 recorded · 169 measured · Source: the US BTS Mar · 79.9% · 350 recorded · 339 measured · Source: the US BTS Apr · 86.8% · 458 recorded · 440 measured · Source: the US BTS May · 89.8% · 560 recorded · 558 measured · Source: the US BTS Jun · 81.7% · 551 recorded · 536 measured · Source: the US BTS Jul · 76.1% · 604 recorded · 590 measured · Source: the US BTS Aug · 77.9% · 354 recorded · 344 measured · Source: the US BTS Sep · 84.8% · 330 recorded · 328 measured · Source: the US BTS Oct · 84.4% · 520 recorded · 520 measured · Source: the US BTS Nov · 85.1% · 314 recorded · 301 measured · Source: the US BTS Dec · 86.1% · 246 recorded · 244 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 · Fewer than 200 measured departures · 146 recorded · 142 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 179 recorded · 169 measured · Source: the US BTS Mar · 21.2 min · 350 recorded · 339 measured · Source: the US BTS Apr · 3.9 min · 458 recorded · 440 measured · Source: the US BTS May · 4.1 min · 560 recorded · 558 measured · Source: the US BTS Jun · 12.8 min · 551 recorded · 536 measured · Source: the US BTS Jul · 21.1 min · 604 recorded · 590 measured · Source: the US BTS Aug · 17.7 min · 354 recorded · 344 measured · Source: the US BTS Sep · 7.3 min · 330 recorded · 328 measured · Source: the US BTS Oct · 7.7 min · 520 recorded · 520 measured · Source: the US BTS Nov · 5.3 min · 314 recorded · 301 measured · Source: the US BTS Dec · 13.9 min · 246 recorded · 244 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 146 · 146 recorded · 142 measured · Source: the US BTS Feb · 179 · 179 recorded · 169 measured · Source: the US BTS Mar · 350 · 350 recorded · 339 measured · Source: the US BTS Apr · 458 · 458 recorded · 440 measured · Source: the US BTS May · 560 · 560 recorded · 558 measured · Source: the US BTS Jun · 551 · 551 recorded · 536 measured · Source: the US BTS Jul · 604 · 604 recorded · 590 measured · Source: the US BTS Aug · 354 · 354 recorded · 344 measured · Source: the US BTS Sep · 330 · 330 recorded · 328 measured · Source: the US BTS Oct · 520 · 520 recorded · 520 measured · Source: the US BTS Nov · 314 · 314 recorded · 301 measured · Source: the US BTS Dec · 246 · 246 recorded · 244 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—142146
FebFewer than 200 measured departures—169179
Mar79.9%21.2 min339350
Apr86.8%3.9 min440458
May89.8%4.1 min558560
Jun81.7%12.8 min536551
Jul76.1%21.1 min590604
Aug77.9%17.7 min344354
Sep84.8%7.3 min328330
Oct84.4%7.7 min520520
Nov85.1%5.3 min301314
Dec86.1%13.9 min244246

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 81.5% 3,757
  • Delayed >15 min 16.3% 754
  • Cancelled 2.2% 101
  • 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

47
47 of 47
Flight numbersBy direction DeparturesOn time
UA763 ORD → PWM 209 81.3%
YX4403 ORD → PWM 163 60.0%
YX4391 PWM → ORD 162 89.2%
UA2466 PWM → ORD 157 80.3%
UA1974 ORD → PWM 156 68.2%
YX4741 PWM → ORD 150 88.6%
YX4741 ORD → PWM 150 89.3%
UA1834 PWM → ORD 89 93.1%
MQ3474 ORD → PWM 74 83.6%
MQ3474 PWM → ORD 74 84.1%
UA1401 ORD → PWM 72 69.0%
UA2804 ORD → PWM 72 87.5%
YX4774 PWM → ORD 72 84.6%
YX4774 ORD → PWM 72 89.9%
UA723 PWM → ORD 68 100.0%
OO5517 PWM → ORD 63 91.9%
OO5849 ORD → PWM 63 81.0%
YX3551 PWM → ORD 56 84.6%
OO4744 PWM → ORD 55 89.1%
OO5708 ORD → PWM 55 76.4%
YX3635 PWM → ORD 50 93.8%
YX4488 ORD → PWM 48 85.4%
YX4488 PWM → ORD 48 78.7%
OO5669 ORD → PWM 45 82.2%
OO5880 PWM → ORD 45 91.1%
MQ3336 ORD → PWM 44 80.5%
MQ4051 PWM → ORD 44 84.1%
UA1030 PWM → ORD 38 97.3%
UA1182 PWM → ORD 37 73.0%
OO5563 ORD → PWM 36 76.5%
OO5624 PWM → ORD 36 76.5%
YX3674 ORD → PWM 36 94.4%
YX3678 PWM → ORD 36 100.0%
OO5761 ORD → PWM 35 88.6%
UA1564 PWM → ORD 35 82.9%
UA637 PWM → ORD 35 79.4%
YX3507 ORD → PWM 34 84.4%
OO5633 ORD → PWM 33 97.0%
YX3695 PWM → ORD 33 65.6%
OO5570 PWM → ORD 32 96.9%
UA2126 ORD → PWM 32 67.7%
MQ3748 PWM → ORD 31 96.8%
MQ3748 ORD → PWM 31 96.8%
OO6218 PWM → ORD 31 63.0%
OO6218 ORD → PWM 31 57.1%
UA1304 PWM → ORD 31 93.6%
MQ3564 ORD → PWM 30 60.7%

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 300 +3.4% 10 80.7%
June 2026 286 +14.4% 14 82.9%
May 2026 330 +44.7% 2 88.2%
April 2026 283 +80.3% 15 83.7%
March 2026 222 +89.7% 11 76.6%
February 2026 115 +113.0% 8 90.4%
January 2026 67 −10.7% 4 76.1%
December 2025 122 +0.0% 2 81.1%
November 2025 168 +26.3% 13 76.8%
October 2025 332 +76.6% 0 81.9%
September 2025 328 2 84.8%
August 2025 344 10 77.9%
July 2025 290 4 71.4%
June 2025 250 1 80.4%
May 2025 228 0 92.1%
April 2025 157 3 92.4%
March 2025 117 0 86.3%
February 2025 54 2 92.6%
January 2025 75 0 80.0%
December 2024 122 0 91.0%
November 2024 133 0 95.5%
October 2024 188 0 88.8%

How to read this chart

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