On-Time Report

BTS data through July 2026

How often US flights arrive on time, route by route

On-time arrivals, delay causes and cancellations for every US airline route, airport and month. Every figure comes from the Bureau of Transportation Statistics files that airlines are required to submit.

All reporting carriers · 12 months to July 2026

7,043,858 scheduled domestic flights on 7,162 routes between 359 airports by 14 reporting carriers

76.0%arrived on time
76.0%arrived on time, 12 months to July 2026down 2.0 points on the previous 12 months (78.0%)
69.4%on time in July 2026631,970 flights that month
1.8%cancelled128,381 flights; previous 12 months 1.4%
8.1 minaverage arrival delayearly arrivals count as negative

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.

Busiest routes

RouteCitiesFlightsOn time
LGA ▸ ORDNew York to Chicago11,61164.2%
ORD ▸ LGAChicago to New York11,61163.5%
LAX ▸ SFOLos Angeles to San Francisco11,23561.7%
SFO ▸ LAXSan Francisco to Los Angeles11,23572.1%
LAX ▸ JFKLos Angeles to New York10,28476.4%
JFK ▸ LAXNew York to Los Angeles10,28175.3%
OGG ▸ HNLKahului to Honolulu10,07583.7%
HNL ▸ OGGHonolulu to Kahului10,07284.1%
BOS ▸ DCABoston to Washington9,09270.6%
DCA ▸ BOSWashington to Boston9,09068.4%
DEN ▸ PHXDenver to Phoenix8,97375.3%
PHX ▸ DENPhoenix to Denver8,94476.6%

All 5,365 routes · routes with the lowest on-time shares

Month by month

100%columns start at 40%
Share of all reported domestic flights that arrived on time, Aug 2023 to Jul 2026. Green columns are at or above the national figure for that month (the dark tick), amber below it, red more than eight points below.

Reporting airlines

CarrierFlightsOn timeCancelled
DL Delta Air Lines1,038,64479.9%1.7%
MQ Envoy Air317,72678.9%2.2%
AS Alaska Airlines301,43578.5%1.2%
UA United Airlines825,69378.2%1.0%
OO SkyWest Airlines854,13077.4%1.8%
WN Southwest Airlines1,389,95175.5%0.9%
YX Republic Airline363,16875.3%4.1%
G4 Allegiant Air126,49973.3%0.7%
AA American Airlines987,64572.7%2.2%
F9 Frontier Airlines209,40571.6%1.9%
OH PSA Airlines242,21570.7%4.3%
B6 JetBlue Airways237,09069.9%3.1%
NK Spirit Airlines117,13669.8%3.9%

Ordered by on-time share, 12 months to July 2026. Which airlines report.

Busiest airports

AirportDeparturesLeft on timeCancelled
ORD Chicago359,91171.4%2.8%
DEN Denver319,20875.7%0.7%
ATL Atlanta315,85977.1%1.8%
DFW Dallas/Fort Worth312,51569.1%2.8%
PHX Phoenix197,64276.1%0.9%
LAX Los Angeles190,10679.0%0.9%
CLT Charlotte181,50674.1%2.0%
LAS Las Vegas172,93273.8%0.9%
SEA Seattle164,82178.2%0.9%
MCO Orlando160,60172.3%1.7%
SFO San Francisco147,56675.1%1.0%
BOS Boston143,44774.4%2.8%

All 342 airports · airport ranking

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of flights that arrived on time, by the hour they were scheduled to depart (local time), all reporting carriers, 12 months to July 2026. Delays build through the day as late aircraft carry over to later flights.

Why flights were late

BTS cause categoryShare of delay minutesMinutes
Air carrier33.3%37,248,839
Late-arriving aircraft39.7%44,441,449
National Aviation System20.7%23,133,857
Extreme weather6.1%6,837,243
Security0.1%161,776
111,823,164 delay minutes on 1,542,495 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Checkpoint volumes

TSA screened 1,974,631 passengers on 29 Sep 2026, the latest day published; August 2026 averaged 2,477,173 a day (-4.4% on a year earlier). Daily and monthly checkpoint volumes.

Reading the numbers

What "on time" meansThe 15-minute rule, and why cancellations count against the share.The five delay causesCarrier, weather, National Aviation System, security and late aircraft.Which airlines reportThe revenue threshold, regional carriers and what is missing.MethodologyHow the monthly files become the figures on each page.