Mahlon Sweet Field in December 2024

76.6%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 December 2024, reporting carriers scheduled 659 domestic departures from Mahlon Sweet Field (EUG). 76.6% left less than 15 minutes late and 77.5% reached their destination on time; 1.4% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so EUG departures were 1.2 points below the national departure figure.

A year earlier, in December 2023, the airport had 662 departures with 82.3% leaving on time: a change of −5.7 points, with flights down 0%.

Flights arriving at EUG that month were on time 78.6% of the time (658 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 47%, late-arriving aircraft 30% and national aviation system 13%.

On time 77.5%
Arrived 15+ minutes late 20.6%
Cancelled 1.4%
Diverted 0.5%

Every scheduled departure from EUG in December 2024, judged by arrival at the destination.

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

Measure	Dec 2024	Dec 2023	EUG, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	76.6%	82.3%	82.3%	77.8%
Arrived on time	77.5%	84.0%	82.0%	78.1%
Cancelled	1.4%	0.5%	0.7%	0.7%
Average departure delay (late minutes only)	20.0 min	22.7 min	13.7 min	16.6 min
Scheduled departures a day	22	22	24	19,686
Scheduled departures	659	662	8,899	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	271	41%	79.0%	4.6 min	0.7%
WN Southwest Airlines	125	19%	80.0%	5.7 min	1.6%
UA United Airlines	114	17%	82.5%	5.1 min	0.0%
AA American Airlines	59	9%	69.5%	30.9 min	0.0%
G4 Allegiant Air	33	5%	60.6%	43.6 min	15.2%
AS Alaska Airlines	31	5%	61.3%	18.5 min	0.0%
MQ Envoy Air	26	4%	88.5%	33.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
EUG–SEA	Eugene to Seattle	109	80.7%	2.0 min	0.0%
EUG–SFO	Eugene to San Francisco	91	73.6%	13.9 min	1.1%
EUG–DEN	Eugene to Denver	64	84.4%	0.4 min	0.0%
EUG–SLC	Eugene to Salt Lake City	62	91.9%	-8.4 min	0.0%
EUG–PHX	Eugene to Phoenix	61	83.6%	18.2 min	0.0%
EUG–LAX	Eugene to Los Angeles	60	68.3%	8.6 min	1.7%
EUG–LAS	Eugene to Las Vegas	41	82.9%	22.8 min	7.3%
EUG–OAK	Eugene to Oakland	32	87.5%	-2.6 min	0.0%
EUG–SAN	Eugene to San Diego	31	71.0%	26.7 min	0.0%
EUG–SMF	Eugene to Sacramento	31	74.2%	17.2 min	3.2%
EUG–DFW	Eugene to Dallas/Fort Worth	24	54.2%	67.5 min	0.0%
EUG–SJC	Eugene to San Jose	17	64.7%	14.7 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	47.0%	34.3%	5,582
Late-arriving aircraft	30.1%	40.2%	3,575
National Aviation System	12.7%	17.8%	1,510
Extreme weather	9.9%	7.5%	1,169
Security	0.3%	0.2%	31

11,867 delay minutes on 136 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 EUG on time in December 2024?

76.6% of 659 scheduled domestic departures left less than 15 minutes late, and 77.5% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 82.3% of 662 departures left on time and 0.5% were cancelled, against 76.6% and 1.4% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for EUG · methodology · corrections.