Mahlon Sweet Field in September 2023

84.3%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 September 2023, reporting carriers scheduled 624 domestic departures from Mahlon Sweet Field (EUG). 84.3% left less than 15 minutes late and 83.3% reached their destination on time; 0.2% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so EUG departures were 3.8 points above the national departure figure.

Flights arriving at EUG that month were on time 82.7% of the time (626 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 56%, late-arriving aircraft 34% and national aviation system 10%.

On time 83.3%
Arrived 15+ minutes late 16.5%
Cancelled 0.2%
Diverted 0.0%

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

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

Measure	Sep 2023	Year earlier	EUG, 12 months to Jul 2026	All reported flights, Sep 2023
Departed on time	84.3%	—	82.3%	80.5%
Arrived on time	83.3%	—	82.0%	80.1%
Cancelled	0.2%	—	0.7%	1.2%
Average departure delay (late minutes only)	17.0 min	—	13.7 min	14.1 min
Scheduled departures a day	21	—	24	18,978
Scheduled departures	624	—	8,899	569,338

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	239	38%	90.4%	4.1 min	0.0%
WN Southwest Airlines	176	28%	80.1%	7.3 min	0.0%
UA United Airlines	94	15%	77.7%	11.9 min	0.0%
AA American Airlines	60	10%	73.3%	29.0 min	0.0%
AS Alaska Airlines	30	5%	93.3%	-3.7 min	0.0%
G4 Allegiant Air	25	4%	72.0%	20.6 min	4.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
EUG–SEA	Eugene to Seattle	116	94.0%	-6.5 min	0.0%
EUG–DEN	Eugene to Denver	90	82.2%	1.1 min	0.0%
EUG–SFO	Eugene to San Francisco	90	75.6%	14.0 min	0.0%
EUG–SLC	Eugene to Salt Lake City	63	93.7%	13.3 min	0.0%
EUG–PHX	Eugene to Phoenix	54	79.6%	23.1 min	0.0%
EUG–OAK	Eugene to Oakland	52	88.5%	2.4 min	0.0%
EUG–LAS	Eugene to Las Vegas	42	69.0%	21.3 min	2.4%
EUG–BUR	Eugene to Burbank	30	80.0%	3.0 min	0.0%
EUG–DFW	Eugene to Dallas/Fort Worth	30	76.7%	40.2 min	0.0%
EUG–SJC	Eugene to San Jose	30	80.0%	4.2 min	0.0%
EUG–LAX	Eugene to Los Angeles	13	76.9%	27.7 min	0.0%
EUG–AZA	Eugene to Phoenix	8	75.0%	3.1 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), September 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2023	Minutes
Air carrier	55.8%	36.4%	5,490
Late-arriving aircraft	34.3%	38.3%	3,369
National Aviation System	9.9%	19.9%	976
Extreme weather	0.0%	5.1%	0
Security	0.0%	0.2%	0

9,835 delay minutes on 103 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 September 2023?

84.3% of 624 scheduled domestic departures left less than 15 minutes late, and 83.3% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 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 September 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.