Is Southwest 451 delayed today?

Updating…Free, supported by affiliate links

Likely delayed: there are delays at WN 451's airports as of 6:46 PM ET. It arrived on time 43.6% of the time in June-August 2026. When it was late, the average delay was 58 minutes. 0.8% of flights were cancelled. AUS has major delays (runway construction, max 3 hours and 3 minutes), so this flight is likely to be delayed.

High cancellation risk

Leg 2 of 3 (LGB → LAS): Next leg LGB → LAS, scheduled 4:10 PM local time. No delays at LGB right now. This flight number flew about 5 days a week in June-August 2026, so it may not operate today. Line up a backup option.

0.8% of its flights were cancelled in June-August 2026; AUS has major delays; rough weather at AUS.

Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Southwest for official times.

Book a backup seat BNA → OMAThis flight is cancelled often; a refundable backup costs little

Route and schedule

LegScheduledOn time
BNA → AUS
Nashville, TN to Austin, TX
2:30 PM → 4:40 PM43%
LGB → LAS
Long Beach, CA to Las Vegas, NV
4:10 PM → 5:20 PM17%
LAS → OMA
Las Vegas, NV to Omaha, NE
6:00 PM → 10:40 PM25%

Local times. Schedules change; check your booking.

How reliable is WN 451?

Arrived on time (within 15 min)43.6%
Average delay when late58 min
Cancelled0.8%
Diverted0%
Flights tracked118

Best and worst days to fly WN 451

WN 451 was most reliable on Saturdays (71% on time) and least reliable on Mondays (22%).

Monday22%
Tuesday57%
Wednesday64%
Thursday38%
Friday40%
Saturday71%
Sunday27%

Why it runs late

Late-arriving plane57%
Airline (crew, maintenance)29%
Air traffic system14%
Extreme weather0%

Share of delay minutes by cause, as reported by Southwest to the Department of Transportation.

Other flights BNA → AUS

All flights on this route, ranked

Live status at its airports

We show airport-wide airport status, not this flight's gate or live position. For that, check the Southwest app.

Southwest delays and what you're owed · Airline phone numbers

About this data

On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.

Common questions

Is WN 451 delayed today?

AUS has major delays (runway construction, max 3 hours and 3 minutes), so this flight is likely to be delayed. Checked 6:46 PM ET. For this flight's gate and exact status, check the Southwest app.

Is WN 451 usually on time?

WN 451 arrived within 15 minutes of schedule 43.6% of the time in June-August 2026, with an average delay of 58 minutes when late.

How often is WN 451 cancelled?

0.8% of WN 451 flights were cancelled in June-August 2026.

Find a flightRefund rights