Mahlon Sweet Field in May 2026

82.7%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 May 2026, reporting carriers scheduled 807 domestic departures from Mahlon Sweet Field (EUG). 82.7% left less than 15 minutes late and 81.3% reached their destination on time; 0.1% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so EUG departures were 5.6 points above the national departure figure.

A year earlier, in May 2025, the airport had 696 departures with 82.9% leaving on time: a change of −0.2 points, with flights up 16%.

Flights arriving at EUG that month were on time 81.6% of the time (806 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 37%, late-arriving aircraft 32% and air carrier 30%.

On time 81.3%
Arrived 15+ minutes late 18.3%
Cancelled 0.1%
Diverted 0.2%

Every scheduled departure from EUG in May 2026, judged by arrival at the destination.

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

Measure	May 2026	May 2025	EUG, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	82.7%	82.9%	82.3%	77.1%
Arrived on time	81.3%	83.3%	82.0%	77.6%
Cancelled	0.1%	0.6%	0.7%	0.9%
Average departure delay (late minutes only)	14.4 min	15.8 min	13.7 min	16.0 min
Scheduled departures a day	27	23	24	20,391
Scheduled departures	807	696	8,899	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	388	48%	83.5%	3.2 min	0.3%
WN Southwest Airlines	171	21%	79.5%	1.2 min	0.0%
UA United Airlines	154	19%	74.0%	18.1 min	0.0%
AA American Airlines	35	4%	91.4%	-9.7 min	0.0%
G4 Allegiant Air	27	3%	74.1%	39.5 min	0.0%
MQ Envoy Air	20	2%	100.0%	-16.0 min	0.0%
AS Alaska Airlines	12	1%	83.3%	9.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
EUG–SEA	Eugene to Seattle	131	82.4%	2.1 min	0.0%
EUG–DEN	Eugene to Denver	118	78.8%	5.1 min	0.0%
EUG–SFO	Eugene to San Francisco	86	52.3%	49.2 min	1.2%
EUG–PDX	Eugene to Portland	74	85.1%	2.0 min	0.0%
EUG–SLC	Eugene to Salt Lake City	62	91.9%	-6.4 min	0.0%
EUG–SAN	Eugene to San Diego	57	87.7%	-5.6 min	0.0%
EUG–PHX	Eugene to Phoenix	55	94.5%	-12.0 min	0.0%
EUG–LAX	Eugene to Los Angeles	43	93.0%	-2.9 min	0.0%
EUG–LAS	Eugene to Las Vegas	40	85.0%	19.9 min	0.0%
EUG–BUR	Eugene to Burbank	31	93.5%	-7.6 min	0.0%
EUG–ORD	Eugene to Chicago	31	64.5%	17.6 min	0.0%
EUG–SMF	Eugene to Sacramento	31	100.0%	-16.9 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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	30.4%	33.0%	3,365
Late-arriving aircraft	31.6%	40.4%	3,500
National Aviation System	36.7%	20.5%	4,073
Extreme weather	1.3%	6.0%	149
Security	0.0%	0.1%	0

11,087 delay minutes on 148 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 May 2026?

82.7% of 807 scheduled domestic departures left less than 15 minutes late, and 81.3% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 82.9% of 696 departures left on time and 0.6% were cancelled, against 82.7% and 0.1% in May 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; 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.