ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
IAH → MCO
Houston to Orlando: 3,709 nonstop flights a year
On time (12 months)
81%
Cancelled
1.1%
avg delay 17 min
Best time to leave
Before 9 AM
93% on time vs 73% 6 to 9 PM
Most reliable airline
United
84% chance on time
Lowest nonstop fare seen in the next two months: $131 (Frontier 2418 on 2026-11-05). 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 · United 1458
8:20 AM → 11:46 AM2h 26m nonstop
Local times, typical schedule. Last flown 2026-05-20.
94%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (18 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Short track record (18 flights), so its score leans on the airline's record at this hour.
Limited track record · 18 flights
Find United 1458 fares Opens this date on Aviasales#2 · United 2245
7:20 AM → 10:46 AM2h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.3%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (359 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
Strong track record · 359 flights
Find United 2245 fares Opens this date on Aviasales#3 · United 1229
8:30 AM → 11:56 AM2h 26m nonstop
Local times, typical schedule. Last flown 2026-04-29.
91%
chance on time
- On time (history)
- 93%
- Cancelled
- 1.4%
- Avg arrival delay
- 5 min
- Arrived on time 93% of the time (72 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
Moderate track record · 72 flights
Find United 1229 fares Opens this date on Aviasales#4 · United 2310
10:15 AM → 1:42 PM2h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 89% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 88 scheduled flights.
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Lands inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 87 flights
Find United 2310 fares Opens this date on Aviasales#5 · United 2662
12:25 PM → 3:47 PM2h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.5%
- Avg arrival delay
- 11 min
- Arrived on time 85% of the time (356 flights, Jun 2025 to May 2026).
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Lands inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 356 flights
Find United 2662 fares Opens this date on Aviasales#6 · Spirit 2228
7:00 AM → 10:13 AM2h 13m nonstop
Local times, typical schedule. Last flown 2026-05-01.
83%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 81% of the time (16 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Spirit 2228 fares Opens this date on Aviasales#7 · United 2451
6:32 PM → 9:59 PM2h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.9%
- Avg arrival delay
- 15 min
- Arrived on time 80% of the time (341 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 73% on time; Before 9 AM: 93%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
Strong track record · 341 flights
Find United 2451 fares Opens this date on Aviasales#8 · Spirit 3410
8:00 AM → 11:15 AM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-13.
79%
chance on time
- On time (history)
- 67%
- Cancelled
- 14.3%
- Avg arrival delay
- 13 min
- Arrived on time 67% of the time (12 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 73%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Short track record (12 flights), so its score leans on the airline's record at this hour.
Limited track record · 12 flights
Find Spirit 3410 fares Opens this date on Aviasales#9 · United 1571
4:37 PM → 8:04 PM2h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 79%
- Cancelled
- 1.2%
- Avg arrival delay
- 16 min
- Arrived on time 79% of the time (326 flights, Jun 2025 to May 2026).
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
Strong track record · 326 flights
Find United 1571 fares Opens this date on Aviasales#10 · United 496
2:20 PM → 5:47 PM2h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.6%
- Avg arrival delay
- 20 min
- Arrived on time 78% of the time (356 flights, Jun 2025 to May 2026).
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Lands inside MCO's trouble window: 76% of its 89 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 356 flights
Find United 496 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines84%
2,480 flights · 84% on time as flown · 0.8% cancel
- Spirit Airlines73%
714 flights · 75% on time as flown · 2.0% cancel
- Frontier Airlines70%
515 flights · 70% on time as flown · 1.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
769 flights · avg delay 5 min
- 9 AM to noon88%
463 flights · avg delay 11 min
- Noon to 3 PM79%
909 flights · avg delay 19 min
- 3 to 6 PM74%
593 flights · avg delay 21 min
- 6 to 9 PM73%
903 flights · avg delay 23 min
Best day: Tuesday (80%). Worst: Sunday (74%).
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