On-Time Report

Airports › Boston (BOS) › January 2026

Airport month · January 2026

Logan International in January 2026

72.3%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 January 2026, reporting carriers scheduled 10,298 domestic departures from Logan International (BOS). 72.3% left less than 15 minutes late and 67.9% reached their destination on time; 7.5% were cancelled.

Nationally that month, 75.6% of flights departed on time and 75.3% arrived on time, so BOS departures were 3.3 points below the national departure figure.

A year earlier, in January 2025, the airport had 10,624 departures with 82.8% leaving on time: a change of −10.5 points, with flights down 3%.

Flights arriving at BOS that month were on time 71.3% of the time (10,296 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 34%, national aviation system 30% and late-arriving aircraft 30%.

Every scheduled departure from BOS in January 2026, judged by arrival at the destination.

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

MeasureJan 2026Jan 2025BOS, 12 months to Jul 2026All reported flights, Jan 2026
Departed on time72.3%82.8%74.4%75.6%
Arrived on time67.9%77.4%73.3%75.3%
Cancelled7.5%2.4%2.8%4.7%
Average departure delay (late minutes only)18.3 min11.4 min18.3 min16.7 min
Scheduled departures a day34335439318,133
Scheduled departures10,29810,624143,447544,003

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
YX Republic Airline2,64726%72.9%4.4 min8.9%
B6 JetBlue Airways2,62626%58.0%21.1 min7.3%
DL Delta Air Lines1,90318%68.4%14.7 min6.7%
AA American Airlines1,26212%70.4%10.9 min8.7%
UA United Airlines8889%75.2%0.5 min5.9%
WN Southwest Airlines4214%79.3%-0.4 min4.3%
NK Spirit Airlines1872%58.8%25.7 min9.6%
MQ Envoy Air1471%73.5%5.2 min8.2%
AS Alaska Airlines1371%64.2%6.7 min5.1%
F9 Frontier Airlines631%50.8%30.1 min3.2%
G4 Allegiant Air170%70.6%18.3 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
BOS–DCABoston to Washington75468.0%12.2 min9.5%
BOS–LGABoston to New York54373.1%4.9 min9.6%
BOS–ORDBoston to Chicago50065.6%12.5 min6.2%
BOS–JFKBoston to New York48268.9%10.0 min8.9%
BOS–MCOBoston to Orlando40461.4%19.1 min5.7%
BOS–LAXBoston to Los Angeles37363.8%10.3 min5.6%
BOS–PHLBoston to Philadelphia36572.9%14.9 min7.4%
BOS–ATLBoston to Atlanta34366.8%15.6 min7.3%
BOS–SFOBoston to San Francisco31369.3%3.8 min4.5%
BOS–MIABoston to Miami30570.2%7.2 min7.2%
BOS–FLLBoston to Fort Lauderdale30353.8%31.2 min5.3%
BOS–EWRBoston to Newark29776.4%1.1 min7.4%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), January 2026.

Delay causes

BTS cause categoryShare of delay minutesNational, Jan 2026Minutes
Air carrier34.0%37.3%66,069
Late-arriving aircraft29.6%35.0%57,619
National Aviation System30.3%18.0%58,986
Extreme weather6.1%9.6%11,795
Security0.0%0.1%59
194,528 delay minutes on 2,511 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← December 2025February 2026 →

Questions and answers

How many flights left BOS on time in January 2026?

72.3% of 10,298 scheduled domestic departures left less than 15 minutes late, and 67.9% reached their destination on time. The national figures that month were 75.6% and 75.3%.

How does that compare with a year earlier?

In January 2025, 82.8% of 10,624 departures left on time and 2.4% were cancelled, against 72.3% and 7.5% in January 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BOS · methodology · corrections.