Route on-time record
HOU to LGB: most on-time flights and the best time to fly
Houston (William P. Hobby Airport) to Long Beach (Long Beach International Airport). 503 nonstop flights in Jun 2025 to May 2026, 84% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was Southwest 3851 at 8:20 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
HOU → LGB
Houston to Long Beach: 503 nonstop flights a year
On time (12 months)
84%
Cancelled
0.6%
avg delay 8 min
Best time to leave
Before 9 AM
91% on time vs 73% noon to 3 PM
Most reliable airline
Southwest
83% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Southwest 3851
8:20 AM → 10:05 AM3h 45m nonstop
Local times, typical schedule. Last flown 2026-04-01.
90%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; Noon to 3 PM: 73%).
- Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 3851 fares Opens this date on Aviasales#2 · Southwest 3172
8:10 AM → 9:40 AM3h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 83%
- Cancelled
- 1.8%
- Avg arrival delay
- 7 min
- Arrived on time 83% of the time (54 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; Noon to 3 PM: 73%).
- Departs outside HOU's trouble window (noon to 6 PM, when 80% of its 40 ground stops and delay programs started).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 3172 fares Opens this date on Aviasales#3 · Southwest 3212
12:40 PM → 2:20 PM3h 40m nonstop
Local times, typical schedule. Last flown 2026-04-06.
75%
chance on time
- On time (history)
- 68%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 68% of the time (25 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 73% on time; Before 9 AM: 91%).
- Departs inside HOU's trouble window: 80% of its 40 ground stops and delay programs started between noon and 6 PM.
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find Southwest 3212 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines83%
503 flights · 84% on time as flown · 0.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
189 flights · avg delay 4 min
- 9 AM to noon81%
43 flights · avg delay 8 min
- Noon to 3 PM73%
64 flights · avg delay 12 min
- 3 to 6 PM78%
80 flights · avg delay 12 min
- 6 to 9 PM82%
127 flights · avg delay 9 min
Best day: Tuesday (88%). Worst: Saturday (81%).
Smarter routing
Nearby airports that run more on time
IAH → SNA 87% chance on time
George Bush Intercontinental Airport to John Wayne Orange County International Airport · 1,094 flights a year · 43 mi from your airports · yours: 83%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft38%
- Airline (crew, maintenance, boarding)37%
- Air traffic control and airport volume15%
- Severe weather10%
- Security1%
Share of delay minutes by the cause airlines report to the US DOT.
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
HOU to LGB questions
- What time of day is best to fly HOU to LGB?
- Before 9 AM: 91% of flights arrived on time, against 73% for departures noon to 3 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from HOU to LGB?
- Southwest, with a season-adjusted 83% chance of operating and arriving on time over 503 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on HOU to LGB?
- June (69% on time); the best was November (91%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from HOU
- LGB to HOU (return)
- HOU to DAL 81%
- HOU to ATL 79%
- HOU to DEN 77%
- HOU to MSY 83%
- HOU to PHX 79%
- HOU to DFW 78%
- HOU to LAS 81%
- HOU to MCO 77%
- HOU to MDW 74%
- HOU to BNA 78%
- HOU to STL 80%
- HOU to BWI 75%
Live status: FAA delays and ground stops