Route Reliability

Route reliability

Miami (MIA) to Los Angeles (LAX): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Miami, FL (MIA) to Los Angeles, CA (LAX), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Miami, FLLos Angeles, CA

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

MIA to LAX

Miami, FL to Los Angeles, CA

On time
74.5%vs 75.6% U.S. average About average
Cancelled
0.7%vs 1.9% U.S. average Better than average
60+ min late
8.0%vs 8.1% U.S. average About average
Scheduled flights
3,251in 12 months2 airlines
Most reliable airline
Delta Air Lines76.3% on time · 494 flights

On time about as often as the U.S. average, with fewer cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from MIA to LAX, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. Delta Air Lines Most reliable 76.3% 1.6% 6.9% 80 min 0.2% 494
2. American Airlines 74.2% 0.5% 8.2% 68 min 0.3% 2,757

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

Delta Air Lines has the strongest record on this route.

  • Delta Air Lines had the best on-time record from Miami (MIA) to Los Angeles (LAX): 76.3% of its 494 scheduled flights arrived within 15 minutes of schedule, compared with 74.2% for American Airlines.
  • 0.7% of flights on this route were cancelled (about 1 in 143), 1.2 points lower than the U.S. average of 1.9%.
  • 8.0% of flights, about 1 in 13, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 69 min.
  • Overall, 74.5% of flights on this route arrived on time, 1.1 points lower than the U.S. average of 75.6%.
  • Over the last 3 years, October was the most reliable month on this route (82.9% on time) and July the least reliable (64.0%).
  • Flights scheduled to depart 8 am to 9 am were the most punctual (87.2% on time); flights scheduled to depart 5 pm to 6 pm were the least (58.6%).
  • In the other direction, Los Angeles (LAX) to Miami (MIA), 77.6% of flights were on time and 0.8% were cancelled. Compare airlines LAX to MIA.

Best and worst months to fly MIA to LAX

Jan 72.8%
Feb 73.9%
Mar 71.8%
Apr 76.5%
May 70.8%
Jun 72.2%
Jul 64.0%
Aug 70.9%
Sep 71.2%
Oct 82.9%
Nov 80.5%
Dec 77.7%
Share of scheduled flights on time 12-month average 74.5%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 72.8% 940
February 73.9% 797
March 71.8% 894
April 76.5% 884
May 70.8% 920
June 72.2% 828
July 64.0% 810
August 70.9% 750
September 71.2% 729
October 82.9% 853
November 80.5% 841
December 77.7% 886
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
Delta Air Lines October (93.1%) July (72.0%)
American Airlines October (81.9%) July (62.9%)

Month by month, last 12 months

Sep 75.9%
Oct 81.0%
Nov 76.8%
Dec 74.8%
Jan 71.2%
Feb 71.3%
Mar 77.5%
Apr 74.7%
May 76.0%
Jun 76.5%
Jul 65.6%
Aug 72.7%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 75.9% 212
Oct 2025 81.0% 269
Nov 2025 76.8% 280
Dec 2025 74.8% 286
Jan 2026 71.2% 299
Feb 2026 71.3% 237
Mar 2026 77.5% 276
Apr 2026 74.7% 285
May 2026 76.0% 304
Jun 2026 76.5% 268
Jul 2026 65.6% 282
Aug 2026 72.7% 253

Best and worst departure times

6a 86.5%
7a 84.2%
8a 87.2%
9a 85.7%
10a 85.4%
12p Insufficient sample
1p 73.8%
2p 70.1%
3p 69.8%
4p 71.8%
5p 58.6%
6p 60.3%
7p 69.9%
8p 68.6%
9p 62.6%
10p 53.3%
Share of scheduled flights on time
By scheduled local departure hour at MIA, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing 6 am to 7 am 86.5% 222
Departing 7 am to 8 am 84.2% 564
Departing 8 am to 9 am 87.2% 328
Departing 9 am to 10 am 85.7% 119
Departing 10 am to 11 am 85.4% 103
Departing noon to 1 pm Insufficient sample 18
Departing 1 pm to 2 pm 73.8% 191
Departing 2 pm to 3 pm 70.1% 164
Departing 3 pm to 4 pm 69.8% 86
Departing 4 pm to 5 pm 71.8% 202
Departing 5 pm to 6 pm 58.6% 145
Departing 6 pm to 7 pm 60.3% 257
Departing 7 pm to 8 pm 69.9% 346
Departing 8 pm to 9 pm 68.6% 169
Departing 9 pm to 10 pm 62.6% 262
Departing 10 pm to 11 pm 53.3% 75
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Miami, FL (MIA) to Los Angeles, CA (LAX), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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