Reliable Flight Search results
Best trips
7 nonstop, 38 with 1 connection · ranked by overall best · 15 hidden by your Most reliable time setting (they leave at other times of day) · published legroom for 30 of 30 · showing the top 3
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
Our best overall pick
92% chance you arrive on time · nonstop · 31 in legroom · planes about 9 years old · 1h 55m
Top pick#1 · Nonstop · 1h 55m
6:55 AM → 8:50 AM
78
score
price
live on Aviasales
92%
arrive on time
93% on time · 0.5% cancel6:55 AM HOU → 8:50 AM BNA1h 55m
Southwest 2296
Boeing 737-800 or 737 MAX 8 · 1–14 yrs oldLegroom 31–34 in · 15.5–17.8 in wide · Economy (all seating types)Why this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have a 85% reliability rating vs 64% for afternoon departures.
- Compared with the next-best option (Southwest 3616 on the Boeing 737-700 or 737-800), it arrives on time 4 points more often.
- Legroom was comparable across the flights we compared (30–31 in), so it didn't set them apart.
Find Southwest 2296 fares Opens this date on Aviasales#2 · Nonstop · 2h 00m
8:50 AM → 10:50 AM
72
score
price
live on Aviasales
88%
arrive on time
89% on time · 1.1% cancel8:50 AM HOU → 10:50 AM BNA2h 00m
Southwest 3616
Boeing 737-700 or 737-800 · 2–21 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find Southwest 3616 fares Opens this date on Aviasales#3 · 1 connection · 5h 10m · one ticket (Southwest)
7:35 AM → 12:45 PM
54
score
price
live on Aviasales
97%
connections made
86%
arrive on time
89% on time · 0.2% cancel7:35 AM HOU → 9:35 AM STL2h 00m
Southwest 2422
Boeing 737 MAX 8 or 737-800 · 3–20 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Connect in STL · 2h 00m · 98% chance to make it · same ticket: the airline rebooks you if you miss it88% on time · 0.6% cancel11:35 AM STL → 12:45 PM BNA1h 10m
Southwest 859
Boeing 737-800 · 4–21 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)Find this Southwest trip Look for Southwest 2422 + Southwest 859 on Aviasales
Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes. Legroom is the seat pitch the airline or a seat-map source publishes for that aircraft and cabin; we never estimate it, and seat maps change, so check the airline’s seat map when you book.
HOU → BNA
Houston to Nashville: 1,804 nonstop flights a year
On time (12 months)
78%
Cancelled
0.7%
avg delay 12 min
Best time to leave
Before 9 AM
92% on time vs 66% 3 to 6 PM
Most reliable airline
Southwest
78% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines78%
1,804 flights · 78% on time as flown · 0.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
542 flights · avg delay 3 min
- 9 AM to noon86%
177 flights · avg delay 7 min
- Noon to 3 PM74%
367 flights · avg delay 14 min
- 3 to 6 PM66%
365 flights · avg delay 19 min
- 6 to 9 PM70%
294 flights · avg delay 15 min
- After 9 PM67%
59 flights · avg delay 24 min
Best day: Wednesday (85%). Worst: Sunday (79%).
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure