Bellingham International in April 2026

90.0%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 April 2026, reporting carriers scheduled 200 domestic departures from Bellingham International (BLI). 90.0% left less than 15 minutes late and 89.0% reached their destination on time; 0.0% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so BLI departures were 10.9 points above the national departure figure.

A year earlier, in April 2025, the airport had 201 departures with 90.5% leaving on time: a change of −0.5 points, with flights down 0%.

Flights arriving at BLI that month were on time 88.5% of the time (200 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 78%, late-arriving aircraft 11% and national aviation system 11%.

On time 89.0%
Arrived 15+ minutes late 11.0%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from BLI in April 2026, judged by arrival at the destination.

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

Measure	Apr 2026	Apr 2025	BLI, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	90.0%	90.5%	87.3%	79.1%
Arrived on time	89.0%	90.0%	84.4%	78.9%
Cancelled	0.0%	0.0%	1.5%	0.9%
Average departure delay (late minutes only)	9.3 min	4.6 min	10.9 min	14.5 min
Scheduled departures a day	7	7	6	19,931
Scheduled departures	200	201	2,237	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	120	60%	91.7%	-1.9 min	0.0%
G4 Allegiant Air	80	40%	85.0%	10.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BLI–SEA	Bellingham to Seattle	90	91.1%	-1.3 min	0.0%
BLI–LAS	Bellingham to Las Vegas	35	85.7%	11.1 min	0.0%
BLI–PDX	Bellingham to Portland	30	93.3%	-3.9 min	0.0%
BLI–PSP	Bellingham to Palm Springs	15	100.0%	-11.7 min	0.0%
BLI–AZA	Bellingham to Phoenix	13	69.2%	53.5 min	0.0%
BLI–BUR	Bellingham to Burbank	9	77.8%	-4.0 min	0.0%
BLI–OAK	Bellingham to Oakland	8	87.5%	-0.4 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	77.5%	33.5%	1,409
Late-arriving aircraft	11.4%	40.4%	208
National Aviation System	11.1%	21.0%	202
Extreme weather	0.0%	5.0%	0
Security	0.0%	0.1%	0

1,819 delay minutes on 22 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 April 2026?

90.0% of 200 scheduled domestic departures left less than 15 minutes late, and 89.0% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 90.5% of 201 departures left on time and 0.0% were cancelled, against 90.0% and 0.0% in April 2026.

Provenance

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