Envoy vs Southwest: On-Time Performance Compared

Last 12 months · Aug 2025 – Jul 2026

Data through July 2026 · Last updated October 18, 2026

Envoy was more punctual than Southwest over the last 12 months: 80.9% of its flights arrived on time, against 76.4%.

Southwest cancelled fewer flights (0.9% vs 2.2%), and late flights averaged 69 minutes late on Envoy vs 53 on Southwest.

On the 56 routes both airlines fly regularly, Envoy had the better on-time record on 47 and Southwest on 9.

Envoy vs Southwest: key numbers

Last 12 months, all flights each airline operated.

EnvoySouthwest

On-time arrivals80.9%76.4%

On-time departures82.2%71.8%

Cancelled2.2%0.9%

Diverted0.3%0.2%

On-time arrival % each month, last 24 months.

EnvoySouthwest

60%70%80%90%

Aug ’24Nov ’24Feb ’25May ’25Aug ’25Nov ’25Feb ’26May ’26

Share of each airline’s reported delay minutes by cause, last 12 months.

EnvoySouthwest

Airline (carrier)19.6%28.4%

Weather12.9%2.3%

Air traffic system (NAS)23.1%17.9%

Security0.1%0.3%

Late-arriving aircraft44.3%51.1%

56 routes where each airline had at least 100 completed flights in the last 12 months; the 25 busiest are shown. Better on-time rate in bold.

Route	Envoy on time	Southwest on time	Envoy flights	Southwest flights
DEN → PHX	75.3%	72.3%	175	3,964
PHX → DEN	83.9%	72.7%	175	3,937
PHX → BUR	85.7%	79.2%	384	2,188
BUR → PHX	81.2%	84.9%	384	2,160
BNA → TPA	79.6%	71.8%	715	1,761
TPA → BNA	75.3%	75.1%	715	1,758
SMF → PHX	83.1%	78.9%	143	2,135
PHX → SMF	88.7%	79.1%	143	2,125
ABQ → PHX	86.6%	80.8%	194	1,892
PHX → ABQ	82.7%	74.9%	192	1,885
SJC → PHX	89.6%	78.2%	194	1,870
PHX → SJC	86.5%	77.2%	194	1,840
BNA → DCA	71.2%	70.3%	140	1,678
DCA → BNA	75.9%	75.1%	139	1,677
PHX → SEA	88.3%	62.8%	755	1,040
SEA → PHX	85.6%	67.4%	754	1,039
MCI → PHX	90.3%	76.7%	114	1,639
PHX → MCI	80.2%	74.3%	113	1,637
ELP → PHX	85.4%	78.1%	332	1,219
PHX → ELP	83.1%	72.6%	333	1,202
OMA → PHX	90.0%	79.3%	271	1,215
PHX → OMA	84.1%	73.9%	272	1,214
ATL → DCA	69.4%	71.8%	264	1,107
DCA → ATL	81.5%	79.2%	264	1,106
BOS → STL	82.3%	72.7%	384	935