Portland International Jetport in July 2026

69.2%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In July 2026, reporting carriers scheduled 1,251 domestic departures from Portland International Jetport (PWM). 69.2% left less than 15 minutes late and 70.6% reached their destination on time; 5.7% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so PWM departures were level with the national departure figure.

A year earlier, in July 2025, the airport had 1,275 departures with 67.1% leaving on time: a change of +2.1 points, with flights down 2%.

Flights arriving at PWM that month were on time 65.8% of the time (1,253 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 35%, air carrier 32% and late-arriving aircraft 31%.

On time 70.6%
Arrived 15+ minutes late 23.1%
Cancelled 5.7%
Diverted 0.6%

Every scheduled departure from PWM in July 2026, judged by arrival at the destination.

July 2026 against a year earlier, the airport's year and the nation

Measure	Jul 2026	Jul 2025	PWM, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	69.2%	67.1%	80.0%	68.8%
Arrived on time	70.6%	63.8%	78.2%	69.4%
Cancelled	5.7%	6.1%	2.6%	2.6%
Average departure delay (late minutes only)	27.8 min	31.0 min	17.2 min	24.1 min
Scheduled departures a day	42	43	30	21,066
Scheduled departures	1,251	1,275	10,925	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	414	33%	73.7%	4.8 min	11.4%
AA American Airlines	259	21%	71.4%	24.9 min	0.8%
DL Delta Air Lines	189	15%	66.7%	36.4 min	2.6%
WN Southwest Airlines	186	15%	71.0%	11.9 min	2.2%
UA United Airlines	133	11%	72.9%	11.9 min	0.0%
B6 JetBlue Airways	53	4%	52.8%	41.0 min	17.0%
OH PSA Airlines	16	1%	56.3%	30.8 min	25.0%
MQ Envoy Air	1	0%	100.0%	-22.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PWM–ORD	Portland to Chicago	155	76.1%	4.8 min	3.9%
PWM–LGA	Portland to New York	127	72.4%	8.3 min	11.0%
PWM–BWI	Portland to Baltimore	124	74.2%	10.8 min	2.4%
PWM–IAD	Portland to Washington	118	73.7%	17.1 min	9.3%
PWM–EWR	Portland to Newark	110	70.0%	8.4 min	11.8%
PWM–CLT	Portland to Charlotte	94	71.3%	22.8 min	0.0%
PWM–DCA	Portland to Washington	94	63.8%	32.8 min	8.5%
PWM–ATL	Portland to Atlanta	92	62.0%	51.8 min	2.2%
PWM–DTW	Portland to Detroit	62	69.4%	14.4 min	3.2%
PWM–PHL	Portland to Philadelphia	57	82.5%	23.7 min	3.5%
PWM–JFK	Portland to New York	53	52.8%	41.0 min	17.0%
PWM–BNA	Portland to Nashville	31	54.8%	21.4 min	3.2%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	32.2%	31.7%	9,905
Late-arriving aircraft	31.3%	41.8%	9,631
National Aviation System	34.5%	19.9%	10,622
Extreme weather	2.1%	6.5%	632
Security	0.0%	0.1%	8

30,798 delay minutes on 289 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left PWM on time in July 2026?

69.2% of 1,251 scheduled domestic departures left less than 15 minutes late, and 70.6% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 67.1% of 1,275 departures left on time and 6.1% were cancelled, against 69.2% and 5.7% in July 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for PWM · methodology · corrections.