ON TIMEBOARD
DAL Dallas / HRL Harlingen

DAL → HRL on time

Dallas Love Field (Dallas, TX) to Valley (Harlingen/San Benito, TX). Every scheduled flight, September 2025 to August 2026.

On time
70%
arrived < 15 min late
Cancelled
0.5%
382 flights
Typical arrival
+1 min
median vs schedule
When late
+51 min
average delay
Flights / day
1
1 airline

70% of flights from Dallas to Harlingen arrived on time over the past 12 months. That is worse than the typical U.S. route. 6% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for DAL → HRL: when a flight was late, it was under 45 minutes late 66% of the time. About 1 in 17 flights landed an hour or more late, and 1 in 96 three hours or more; 0.5% were cancelled outright.

Share of all 382 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Southwest Airlines38270%0.5%+1 min5.8%+51 minSouthwest Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at DAL). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%11 a.m. departures: too few flights (44 flights)11anoon departures: too few flights (29 flights)12p1 p.m. departures: too few flights (42 flights)1p2 p.m. departures: too few flights (25 flights)2p3 p.m. departures: too few flights (64 flights)3p4 p.m. departures: 68% on time (130 flights)684p
DAL → HRL, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026. Best: August (79%). Worst: July (61%).

40%70%100%Jan: too few flights (72 flights)JanFeb: too few flights (64 flights)FebMar: too few flights (72 flights)MarApr: too few flights (68 flights)AprMay: too few flights (70 flights)MayJun: 72% on time (105 flights)72JunJul: 61% on time (108 flights)61JulAug: 79% on time (101 flights)79AugSep: too few flights (64 flights)SepOct: too few flights (63 flights)OctNov: too few flights (70 flights)NovDec: too few flights (77 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday53——
Tuesday52——
Wednesday52——
Thursday52——
Friday52——
Saturday65——
Sunday56——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 50%Airline (crew, maintenance, ops) 37%Air traffic & airport (NAS) 7%Severe weather 5%

Cancellations: weather 2

Month by month

Not enough months with data to draw a trend.

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Dallas or Harlingen. DFW → BRO has been 14 points more reliable.

RouteFlightsOn timeCancelled
DAL → HRL (this route)38270%0.5%
DFW → BRO Dallas/Fort Worth to Brownsville South Padre Island1,42183%2.3%
DFW → HRL Dallas/Fort Worth to Valley1,48083%2.8%
DFW → MFE Dallas/Fort Worth to McAllen Miller2,44568%2.6%

Questions

How often are flights from DAL to HRL on time?

70% of 382 scheduled flights from Dallas, TX to Harlingen/San Benito, TX arrived within 15 minutes of schedule between September 2025 and August 2026. 0.5% were cancelled.

What month has the most delays from DAL to HRL?

July (61% on time). The best month is August (79%), over 2023–2026.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.