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Republic vs Southwest: On-Time Performance Compared

Last 12 months · Aug 2025 – Jul 2026

Data through July 2026 · Last updated October 18, 2026

Republic was more punctual than Southwest over the last 12 months: 78.7% of its flights arrived on time, against 76.4%.

Southwest cancelled fewer flights (0.9% vs 4.1%), and late flights averaged 72 minutes late on Republic vs 53 on Southwest.

On the 36 routes both airlines fly regularly, Republic had the better on-time record on 30 and Southwest on 6.

Republic vs Southwest: key numbers

Last 12 months, all flights each airline operated.

MeasureRepublicSouthwest
On-time arrivals78.7%76.4%
On-time departures81.3%71.8%
Avg delay when late72 min53 min
Cancelled4.1%0.9%
Diverted0.2%0.2%
Scheduled flights363,1681,389,951

Monthly on-time trend: Republic vs Southwest

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

What delays each airline

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

Routes both airlines fly

36 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.

RouteRepublic on timeSouthwest on timeRepublic flightsSouthwest flights
BNA → DCA 74.7%70.3% 1,8321,678
DCA → BNA 82.9%75.1% 1,8311,677
BWI → BOS 81.2%72.3% 1,0942,376
BOS → BWI 82.0%77.7% 1,0942,374
BNA → LGA 73.5%70.0% 1,6781,450
LGA → BNA 75.1%68.4% 1,6781,450
STL → LGA 80.3%70.5% 1,2021,394
LGA → STL 78.2%75.2% 1,2011,394
LGA → ATL 77.1%75.2% 1,733815
ATL → LGA 76.0%71.2% 1,732815
BNA → RDU 77.1%75.1% 9521,262
RDU → BNA 79.8%81.4% 9541,260
DCA → STL 78.2%75.4% 2221,402
STL → DCA 74.8%73.0% 2211,403
ATL → DCA 70.9%71.8% 4541,107
DCA → ATL 79.8%79.2% 4531,106
BNA → BOS 80.6%59.6% 4781,000
BOS → BNA 73.6%65.5% 478999
CMH → DCA 67.6%59.9% 981350
DCA → CMH 80.4%78.9% 980349
BOS → STL 79.5%72.7% 293935
STL → BOS 74.0%65.6% 293934
DCA → MCI 74.6%72.2% 173998
MCI → DCA 76.3%73.0% 173997
PHL → BNA 87.8%76.7% 201934

More comparisons

Republic Airways full stats · Southwest Airlines full stats · All airline comparisons