Find the flight least likely to be delayed

1. Best overall#1 · Nonstop · 2h 51m

   9:00 AM → 10:51 AM

   89%

   arrive on time

   9:00 AM IAD → 10:51 AM MSY2h 51m

   United 2253

   Boeing 737-900ER or 737 MAX 8 · 1–28 yrs old

   90% on time · 0.7% cancel
   Why this ranks here

   Find United 2253 fares ↗Opens this date on Aviasales

2. #2 · Nonstop · 2h 51m

   1:05 PM → 2:56 PM

   86%

   arrive on time

   1:05 PM IAD → 2:56 PM MSY2h 51m

   United 2603

   Airbus A319 · 13–25 yrs old

   86% on time · 0.4% cancel
   Why this ranks here

   Find United 2603 fares ↗Opens this date on Aviasales

3. #3 · Nonstop · 2h 47m

   8:02 PM → 9:49 PM

   86%

   arrive on time

   8:02 PM IAD → 9:49 PM MSY2h 47m

   United 2042

   Boeing 737-900ER · 1–17 yrs old

   86% on time · 0.4% cancel
   Why this ranks here

   Find United 2042 fares ↗Opens this date on Aviasales

4. #4 · Nonstop · 2h 54m

   5:50 PM → 7:44 PM

   80%

   arrive on time

   5:50 PM IAD → 7:44 PM MSY2h 54m

   United 251

   Boeing 737-900ER · 11–17 yrs old

   81% on time · 0.3% cancel
   Why this ranks here

   Find United 251 fares ↗Opens this date on Aviasales

5. #5 · 1 connection · 4h 49m · one ticket (American)

   5:00 AM → 8:49 AM

   90%

   connections made

   80%

   arrive on time

   5:00 AM IAD → 6:27 AM CLT1h 27m

   American 2643

   Airbus A319 · 25–27 yrs old

   87% on time · 1.5% cancel

   Connect in CLT · 1h 23m · 93% chance to make it · same ticket: the airline rebooks you if you miss it

   7:50 AM CLT → 8:49 AM MSY1h 59m

   American 2180

   Boeing 737-800 · 9–26 yrs old

   89% on time · 1.4% cancel
   Why this ranks here

   Find this American trip ↗Look for American 2643 + American 2180 on Aviasales

6. #6 · 1 connection · 5h 27m · one ticket (Delta)

   6:01 AM → 10:33 AM

   91%

   connections made

   82%

   arrive on time

   6:01 AM IAD → 7:58 AM ATL1h 54m

   Delta 2127

   Airbus A319 or A320 · 23–28 yrs old

   86% on time · 2.7% cancel

   Connect in ATL · 1h 56m · 95% chance to make it · same ticket: the airline rebooks you if you miss it

   9:54 AM ATL → 10:33 AM MSY1h 37m

   Delta 1424

   Boeing 737-900ER · 8–13 yrs old

   90% on time · 1.9% cancel
   Why this ranks here

   Find this Delta trip ↗Look for Delta 2127 + Delta 1424 on Aviasales

7. #7 · 1 connection · 6h 04m · one ticket (United)

   6:00 AM → 11:04 AM

   96%

   connections made

   81%

   arrive on time

   6:00 AM IAD → 8:27 AM IAH3h 27m

   United 1041 · also flew as 1131, 1409

   Boeing 737 MAX 9 or 737-900ER · 0–23 yrs old

   90% on time · 0.4% cancel

   Connect in IAH · 1h 23m · 96% chance to make it · same ticket: the airline rebooks you if you miss it

   9:50 AM IAH → 11:04 AM MSY1h 14m

   United 575

   Airbus A320 · 20–29 yrs old

   85% on time · 0.2% cancel
   Why this ranks here

   Find this United trip ↗Look for United 1041 + United 575 on Aviasales

8. #8 · 1 connection · 7h 42m · one ticket (United)

   6:30 AM → 1:12 PM

   98%

   connections made

   85%

   arrive on time

   6:30 AM IAD → 8:39 AM IAH3h 09m

   United 1907

   Boeing 737-800 or 737 MAX 9 · 3–26 yrs old

   90% on time · 0.6% cancel

   Connect in IAH · 3h 16m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

   11:55 AM IAH → 1:12 PM MSY1h 17m

   United 2385

   Boeing 737-800 or 737 MAX 8 · 2–28 yrs old

   87% on time · 0.2% cancel
   Why this ranks here

   Find this United trip ↗Look for United 1907 + United 2385 on Aviasales

9. #9 · 1 connection · 8h 12m · one ticket (United)

   6:00 AM → 1:12 PM

   99%

   connections made

   86%

   arrive on time

   6:00 AM IAD → 8:27 AM IAH3h 27m

   United 1041 · also flew as 1131, 1409

   Boeing 737 MAX 9 or 737-900ER · 0–23 yrs old

   90% on time · 0.4% cancel

   Connect in IAH · 3h 28m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

   11:55 AM IAH → 1:12 PM MSY1h 17m

   United 2385

   Boeing 737-800 or 737 MAX 8 · 2–28 yrs old

   87% on time · 0.2% cancel
   Why this ranks here

   Find this United trip ↗Look for United 1041 + United 2385 on Aviasales

10. #10 · 1 connection · 4h 48m · one ticket (American)

    6:20 AM → 10:08 AM

    91%

    connections made

    75%

    arrive on time

    6:20 AM IAD → 7:47 AM CLT1h 27m

    American 1216 · also flew as 2457

    Airbus A319 · 11–27 yrs old

    90% on time · 1.3% cancel

    Connect in CLT · 1h 12m · 93% chance to make it · same ticket: the airline rebooks you if you miss it

    8:59 AM CLT → 10:08 AM MSY2h 09m

    American 1842

    Airbus A319 · 6–27 yrs old

    83% on time · 1.2% cancel
    Why this ranks here

    Find this American trip ↗Look for American 1216 + American 1842 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.