Mahlon Sweet Field in August 2023

83.1%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 August 2023, reporting carriers scheduled 686 domestic departures from Mahlon Sweet Field (EUG). 83.1% left less than 15 minutes late and 81.9% reached their destination on time; 0.7% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so EUG departures were 6.4 points above the national departure figure.

Flights arriving at EUG that month were on time 79.3% of the time (686 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 53%, air carrier 37% and national aviation system 8%.

On time 81.9%
Arrived 15+ minutes late 17.1%
Cancelled 0.7%
Diverted 0.3%

Every scheduled departure from EUG in August 2023, judged by arrival at the destination.

August 2023 against a year earlier, the airport's year and the nation

Measure	Aug 2023	Year earlier	EUG, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	83.1%	—	82.3%	76.7%
Arrived on time	81.9%	—	82.0%	76.9%
Cancelled	0.7%	—	0.7%	1.5%
Average departure delay (late minutes only)	13.5 min	—	13.7 min	17.3 min
Scheduled departures a day	23	—	24	20,100
Scheduled departures	686	—	8,899	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	248	36%	89.5%	-0.9 min	0.0%
WN Southwest Airlines	184	27%	79.9%	4.8 min	1.1%
UA United Airlines	120	17%	78.3%	11.1 min	1.7%
AA American Airlines	62	9%	80.6%	20.6 min	0.0%
G4 Allegiant Air	41	6%	58.5%	46.2 min	2.4%
AS Alaska Airlines	31	5%	80.6%	3.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
EUG–SEA	Eugene to Seattle	120	91.7%	-5.7 min	0.0%
EUG–DEN	Eugene to Denver	93	78.5%	7.1 min	1.1%
EUG–SFO	Eugene to San Francisco	93	83.9%	8.0 min	1.1%
EUG–SLC	Eugene to Salt Lake City	62	91.9%	-2.8 min	0.0%
EUG–OAK	Eugene to Oakland	60	93.3%	-1.9 min	0.0%
EUG–LAX	Eugene to Los Angeles	40	75.0%	11.3 min	2.5%
EUG–LAS	Eugene to Las Vegas	39	64.1%	47.8 min	0.0%
EUG–SAN	Eugene to San Diego	39	76.9%	10.9 min	2.6%
EUG–BUR	Eugene to Burbank	31	61.3%	14.7 min	3.2%
EUG–DFW	Eugene to Dallas/Fort Worth	31	90.3%	-7.9 min	0.0%
EUG–PHX	Eugene to Phoenix	31	71.0%	49.1 min	0.0%
EUG–SJC	Eugene to San Jose	31	80.6%	4.2 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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	37.2%	36.7%	3,129
Late-arriving aircraft	52.5%	42.2%	4,417
National Aviation System	8.3%	15.7%	696
Extreme weather	1.6%	5.1%	137
Security	0.4%	0.2%	30

8,409 delay minutes on 117 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 August 2023?

83.1% of 686 scheduled domestic departures left less than 15 minutes late, and 81.9% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 2022 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 August 2023; 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.