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 → MEM
Houston to Memphis: 1,101 nonstop flights a year
On time (12 months)
78%
Cancelled
0.9%
avg delay 16 min
Best time to leave
Before 9 AM
85% on time vs 66% 3 to 6 PM
Most reliable airline
SkyWest
81% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
5 nonstop, 17 with 1 connection. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.
Best overall#1 · Nonstop · 1h 40m
11:55 AM → 1:35 PM
83%
arrive on time
84% on time · 0.3% cancel11:55 AM IAH → 1:35 PM MEM1h 40m
SkyWest 5758 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 9–12 yrs oldFind 11:55 AM flight fares Opens this date on Aviasales#2 · Nonstop · 1h 45m
7:20 AM → 9:05 AM
82%
arrive on time
83% on time · 1.0% cancel7:20 AM IAH → 9:05 AM MEM1h 45m
SkyWest 5360 · sold as United Express, Delta Connection, American Eagle or Alaska · also flew as 5329
Embraer E175 · 9–12 yrs oldFind 7:20 AM flight fares Opens this date on Aviasales#3 · Nonstop · 1h 41m
12:20 PM → 2:01 PM
76%
arrive on time
77% on time · 0.6% cancel12:20 PM IAH → 2:01 PM MEM1h 41m
SkyWest 5228 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 9–12 yrs oldFind 12:20 PM flight fares Opens this date on Aviasales#4 · Nonstop · 1h 40m
4:35 PM → 6:15 PM
70%
arrive on time
71% on time · 0.9% cancel4:35 PM IAH → 6:15 PM MEM1h 40m
SkyWest 5229 · sold as United Express, Delta Connection, American Eagle or Alaska · also flew as 5361
Embraer E175 · 9–12 yrs oldFind 4:35 PM flight fares Opens this date on Aviasales#5 · Nonstop · 1h 40m
8:00 PM → 9:40 PM
68%
arrive on time
69% on time · 1.4% cancel8:00 PM IAH → 9:40 PM MEM1h 40m
United 1794
Airbus A320 or A319 · 3–28 yrs oldFind United 1794 fares Opens this date on Aviasales#6 · 1 connection · 4h 26m · one ticket (American)
7:20 AM → 11:46 AM
84%
connections made
71%
arrive on time
82% on time · 2.7% cancel7:20 AM IAH → 8:50 AM DFW1h 30m
American 1239
Boeing 737 MAX 8 or 737-800 · 1–25 yrs oldConnect in DFW · 1h 19m · 88% chance to make it · same ticket: the airline rebooks you if you miss it85% on time · 1.9% cancel10:09 AM DFW → 11:46 AM MEM1h 37m
Envoy 3748 · sold as American Eagle · also flew as 3775
Embraer E175 · 2–11 yrs oldFind this American trip Look for American 1239 + Envoy 3748 on Aviasales#7 · 1 connection · 5h 46m · one ticket (American)
6:00 AM → 11:46 AM
88%
connections made
74%
arrive on time
85% on time · 4.3% cancel6:00 AM IAH → 7:21 AM DFW1h 21m
American 700
Airbus A321 · 7–24 yrs oldConnect in DFW · 2h 48m · 94% chance to make it · same ticket: the airline rebooks you if you miss it85% on time · 1.9% cancel10:09 AM DFW → 11:46 AM MEM1h 37m
Envoy 3748 · sold as American Eagle · also flew as 3775
Embraer E175 · 2–11 yrs oldFind this American trip Look for American 700 + Envoy 3748 on Aviasales#8 · 1 connection · 6h 46m · one ticket (American)
5:00 AM → 11:46 AM
91%
connections made
77%
arrive on time
87% on time · 3.7% cancel5:00 AM IAH → 6:17 AM DFW1h 17m
American 2551 · also flew as 2432
Boeing 737-800 or Airbus A320 · 11–27 yrs oldConnect in DFW · 3h 52m · 97% chance to make it · same ticket: the airline rebooks you if you miss it85% on time · 1.9% cancel10:09 AM DFW → 11:46 AM MEM1h 37m
Envoy 3748 · sold as American Eagle · also flew as 3775
Embraer E175 · 2–11 yrs oldFind this American trip Look for American 2551 + Envoy 3748 on Aviasales#9 · 1 connection · 4h 46m · one ticket (American)
7:00 AM → 11:46 AM
84%
connections made
71%
arrive on time
78% on time · 4.4% cancel7:00 AM IAH → 8:32 AM DFW1h 32m
American 3002
Airbus A321 · 7–25 yrs oldConnect in DFW · 1h 37m · 89% chance to make it · same ticket: the airline rebooks you if you miss it85% on time · 1.9% cancel10:09 AM DFW → 11:46 AM MEM1h 37m
Envoy 3748 · sold as American Eagle · also flew as 3775
Embraer E175 · 2–11 yrs oldFind this American trip Look for American 3002 + Envoy 3748 on Aviasales#10 · 1 connection · 6h 55m · one ticket (United)
7:20 AM → 2:15 PM
94%
connections made
76%
arrive on time
84% on time · 1.4% cancel7:20 AM IAH → 8:47 AM DFW1h 27m
United 358
Airbus A320 · 3–29 yrs oldConnect in DFW · 3h 49m · 99% chance to make it · same ticket: the airline rebooks you if you miss it81% on time · 3.5% cancel12:36 PM DFW → 2:15 PM MEM1h 39m
SkyWest 6259 · sold as United Express
Bombardier CRJ700 · 21–24 yrs oldFind this United trip Look for United 358 + SkyWest 6259 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.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)81%
742 flights · 82% on time as flown · 0.7% cancel
- United Airlines70%
359 flights · 69% on time as flown · 1.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
343 flights · avg delay 11 min
- Noon to 3 PM83%
295 flights · avg delay 15 min
- 3 to 6 PM66%
74 flights · avg delay 20 min
- 6 to 9 PM71%
354 flights · avg delay 19 min
Best day: Wednesday (85%). Worst: Friday (69%).
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