Portland International Jetport in March 2024

84.4%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 March 2024, reporting carriers scheduled 601 domestic departures from Portland International Jetport (PWM). 84.4% left less than 15 minutes late and 84.4% reached their destination on time; 1.5% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so PWM departures were 5.9 points above the national departure figure.

Flights arriving at PWM that month were on time 79.4% of the time (602 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 49%, air carrier 38% and national aviation system 11%.

On time 84.4%
Arrived 15+ minutes late 13.8%
Cancelled 1.5%
Diverted 0.3%

Every scheduled departure from PWM in March 2024, judged by arrival at the destination.

March 2024 against a year earlier, the airport's year and the nation

Measure	Mar 2024	Year earlier	PWM, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	84.4%	—	80.0%	78.5%
Arrived on time	84.4%	—	78.2%	78.3%
Cancelled	1.5%	—	2.6%	0.9%
Average departure delay (late minutes only)	14.8 min	—	17.2 min	15.7 min
Scheduled departures a day	20	—	30	19,726
Scheduled departures	601	—	10,925	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
9E Endeavor Air	115	19%	92.2%	-11.9 min	0.0%
YX Republic Airline	111	18%	91.0%	-11.1 min	2.7%
WN Southwest Airlines	96	16%	79.2%	5.1 min	0.0%
AA American Airlines	85	14%	84.7%	1.6 min	1.2%
DL Delta Air Lines	53	9%	90.6%	1.2 min	0.0%
F9 Frontier Airlines	40	7%	55.0%	26.2 min	7.5%
OH PSA Airlines	39	6%	74.4%	11.6 min	0.0%
OO SkyWest Airlines	31	5%	83.9%	19.1 min	3.2%
UA United Airlines	31	5%	87.1%	-11.9 min	3.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PWM–DCA	Portland to Washington	111	82.9%	2.2 min	0.0%
PWM–BWI	Portland to Baltimore	92	80.4%	4.1 min	0.0%
PWM–LGA	Portland to New York	88	92.0%	-9.5 min	1.1%
PWM–JFK	Portland to New York	62	90.3%	-8.4 min	0.0%
PWM–ORD	Portland to Chicago	49	85.7%	1.4 min	6.1%
PWM–MCO	Portland to Orlando	44	54.5%	26.5 min	6.8%
PWM–ATL	Portland to Atlanta	31	90.3%	-6.3 min	0.0%
PWM–CLT	Portland to Charlotte	31	87.1%	-7.3 min	3.2%
PWM–DTW	Portland to Detroit	31	93.5%	1.6 min	0.0%
PWM–EWR	Portland to Newark	31	87.1%	-11.9 min	3.2%
PWM–PHL	Portland to Philadelphia	31	87.1%	1.8 min	0.0%

By scheduled departure hour

100

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

Share of departures that left less than 15 minutes late, by scheduled hour (local time), March 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	37.6%	32.1%	2,931
Late-arriving aircraft	49.3%	42.1%	3,842
National Aviation System	11.0%	21.4%	860
Extreme weather	1.8%	4.2%	139
Security	0.2%	0.2%	15

7,787 delay minutes on 83 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 March 2024?

84.4% of 601 scheduled domestic departures left less than 15 minutes late, and 84.4% reached their destination on time. The national figures that month were 78.5% and 78.3%.

How does that compare with a year earlier?

March 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2024; 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.