Bellingham International in May 2026

85.0%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 193 domestic departures from Bellingham International (BLI). 85.0% left less than 15 minutes late and 82.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so BLI departures were 7.9 points above the national departure figure.

A year earlier, in May 2025, the airport had 212 departures with 91.0% leaving on time: a change of −6.0 points, with flights down 9%.

Flights arriving at BLI that month were on time 81.9% of the time (193 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 81%, late-arriving aircraft 12% and extreme weather 4%.

On time 82.9%
Arrived 15+ minutes late 16.6%
Cancelled 0.5%
Diverted 0.0%

Every scheduled departure from BLI 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	BLI, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	85.0%	91.0%	87.3%	77.1%
Arrived on time	82.9%	89.2%	84.4%	77.6%
Cancelled	0.5%	0.0%	1.5%	0.9%
Average departure delay (late minutes only)	21.3 min	6.1 min	10.9 min	16.0 min
Scheduled departures a day	6	7	6	20,391
Scheduled departures	193	212	2,237	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	124	64%	86.3%	3.5 min	0.8%
G4 Allegiant Air	69	36%	76.8%	42.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BLI–SEA	Bellingham to Seattle	93	83.9%	4.7 min	0.0%
BLI–LAS	Bellingham to Las Vegas	36	77.8%	62.1 min	0.0%
BLI–PDX	Bellingham to Portland	31	93.5%	-0.5 min	3.2%
BLI–AZA	Bellingham to Phoenix	10	80.0%	8.7 min	0.0%
BLI–BUR	Bellingham to Burbank	9	88.9%	-5.3 min	0.0%
BLI–OAK	Bellingham to Oakland	8	62.5%	37.4 min	0.0%
BLI–PSP	Bellingham to Palm Springs	6	66.7%	62.2 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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	80.5%	33.0%	3,281
Late-arriving aircraft	11.5%	40.4%	470
National Aviation System	3.9%	20.5%	157
Extreme weather	4.1%	6.0%	169
Security	0.0%	0.1%	0

4,077 delay minutes on 32 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 BLI on time in May 2026?

85.0% of 193 scheduled domestic departures left less than 15 minutes late, and 82.9% 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, 91.0% of 212 departures left on time and 0.0% were cancelled, against 85.0% and 0.5% 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 BLI · methodology · corrections.