ONT → BNAOntario to Nashville

live

Direct flights from Ontario (ONT) to Nashville (BNA): 7 nonstop departures observed each week across 1 airline. 78% of the last 9 operated flights arrived within 15 minutes of schedule. The median arrival is 14 minutes early. No cancellations were recorded across the 9 tracked flights. The nonstop covers 2,811 km, an estimated 4 hours 6 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Nashville. Updated 22 October 2026 at 22:18 UTC.

Today, ONT → BNA

Thu 22 Oct · local times
  1. 10:05 WN4996Southwest Left 10:16 +11 BNA est. 15:39In the air · sched 15:55

Checked ONT board 15:18 · BNA board 15:03

ONT Ontario heavy · +42
BNA Nashville smooth · +0
2,811 km · ~4h 06m est.
dep bank 10:05–11:107x weekly
Runs mixed · 1 airline · 7x weekly · nonstop
78% on time

of the last 9 operated ONT → BNA flights arrived within 15 minutes

Median arrival delay is −14 min. 0 of 9 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−14 minacross the last 9 operated legs
Flight time~4h 06mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN88% on time

Flights WN4996 varies Mo Tu We Th Fr Su · WN1416 11:10 Sa

History

operated legs · board outcomes
10-22WN4996dep +11 → arr−16
10-21WN4996dep +18 → arr−13
10-20WN4996dep +13 → arr−21
10-19WN4996dep +11 → arr−16
10-18WN4996dep +13 → arr−13
10-17WN1416dep +16 → arr−14
10-16WN4996dep +19 → arr−17
10-15LXJ226dep +26 → arr+218
10-15WN4996dep +61 → arr+35

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ONTOntario +42 min heavy 🌤 mostly cloudy · 5 kt Full ONT delay board →
BNANashville +0 min smooth 🌤 clear · NNE 7 kt Full BNA delay board →

Weather lens

Current conditions put the pressure at ONT and BNA: 42% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Ontario to Nashville route actually runs

Pro Flight Search records official board updates for nonstop ONT to BNA flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Ontario (ONT) to Nashville (BNA) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ONT-BNA
How we measure this →

ONT to BNA questions

Is ONT–BNA running on time right now?

Mostly on schedule. The departure side at ONT is the weaker end, route health score 72/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from ONT to BNA?

Great-circle distance is 2,811 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 228–271 min gate-to-gate on this route.

How often does ONT–BNA fly?

Southwest Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at ONT and arrival-side delay at BNA, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.