Will your flight be late?

Tell us the flight. Pick the day you’re flying and we’ll give you the odds; they get sharper as the weather forecast, the FAA and your plane’s earlier flights come into focus.

0ground stops in effect right now
1FAA delay program right now
23%average chance of a late departure on Thursday
2%average chance of a cancellation on Thursday

Schedule: FAA flight plans for 6 flights; the other 21,243 (marked “typical”) come from a recent Thursday’s schedule until the FAA publishes them, usually about a day ahead.

Airports on Thursday, October 1

Forecasts for Thu, Oct 1, worst first. Forecast issued Tue 2:00 PM ET.

  • Chance a departure that hour leaves 15+ min late on a normal day
  • Extra today
DFW Dallas–Fort Worth #1
Rough weather, no program posted yet
50% leave 15+ min late
17% cancelled, ~163 of 961
+31 pts above normal ▼ 3 pts in 24 h
Worst hour 7 PM · 62% 23 kt gusts, 200 ft ceiling, 2.4 in rain
ORD Chicago O'Hare #2
Rough weather, no program posted yet
33% leave 15+ min late
3% cancelled, ~35 of 1081
+18 pts above normal
Worst hour 7 PM · 48% 9 kt gusts, 600 ft ceiling, 1.3 in rain
IAH Houston Bush #3
30% leave 15+ min late
2% cancelled, ~8 of 347
+15 pts above normal ▼ 1 pt in 24 h
Worst hour 7 PM · 46% 23 kt gusts, high ceiling, 0.21 in rain
DEN Denver #4
29% leave 15+ min late
1% cancelled, ~10 of 992
+11 pts above normal ▼ 1 pt in 24 h
Worst hour 6 PM · 42% 18 kt gusts, high ceiling, 0.31 in rain
MIA Miami #5
28% leave 15+ min late
4% cancelled, ~12 of 299
+11 pts above normal ▲ 1 pt in 24 h
Worst hour 5 PM · 40% 25 kt gusts, high ceiling, 0.53 in rain
FLL Fort Lauderdale #6
27% leave 15+ min late
2% cancelled, ~5 of 249
+8 pts above normal ▲ 1 pt in 24 h
Worst hour 8 PM · 44% 23 kt gusts, high ceiling, 0.47 in rain
LAS Las Vegas #7
24% leave 15+ min late
1% cancelled, ~7 of 502
+2 pts above normal
Worst hour 8 PM · 36% 10 kt gusts, high ceiling
MCO Orlando #8
22% leave 15+ min late
2% cancelled, ~8 of 427
+8 pts above normal ▲ 1 pt in 24 h
Worst hour 10 PM · 42% 19 kt gusts, 4800 ft ceiling, 0.15 in rain
PHX Phoenix #9
22% leave 15+ min late
1% cancelled, ~8 of 540
+2 pts above normal
Worst hour 10 PM · 35% 5 kt gusts, high ceiling
BWI Baltimore/Washington #10
22% leave 15+ min late
1% cancelled, ~4 of 287
+2 pts above normal
Worst hour 8 PM · 36% 8 kt gusts, high ceiling
SFO San Francisco #11
22% leave 15+ min late
1% cancelled, ~6 of 468
+5 pts above normal ▲ 1 pt in 24 h
Worst hour 3 PM · 32% 11 kt gusts, 1100 ft ceiling
SEA Seattle–Tacoma #12
21% leave 15+ min late
1% cancelled, ~6 of 538
+4 pts above normal
Worst hour 8 PM · 26% 8 kt gusts, 3900 ft ceiling
DTW Detroit #13
21% leave 15+ min late
1% cancelled, ~5 of 352
+8 pts above normal ▲ 2 pts in 24 h
Worst hour 8 PM · 35% 15 kt gusts, high ceiling, 0.24 in rain
CLT Charlotte #14
20% leave 15+ min late
1% cancelled, ~7 of 524
+3 pts above normal
Worst hour 7 PM · 32% 10 kt gusts, high ceiling
DCA Washington National #15
20% leave 15+ min late
2% cancelled, ~6 of 415
+3 pts above normal
Worst hour 6 PM · 32% 9 kt gusts, high ceiling
LAX Los Angeles #16
20% leave 15+ min late
1% cancelled, ~7 of 588
+3 pts above normal
Worst hour 2 PM · 27% 13 kt gusts, 700 ft ceiling
LGA New York LaGuardia #17
19% leave 15+ min late
2% cancelled, ~9 of 384
+4 pts above normal ▲ 1 pt in 24 h
Worst hour 6 PM · 30% 13 kt gusts, high ceiling
JFK New York JFK #18
18% leave 15+ min late
1% cancelled, ~4 of 301
+4 pts above normal
Worst hour 8 PM · 32% 12 kt gusts, high ceiling
PHL Philadelphia #19
18% leave 15+ min late
2% cancelled, ~6 of 337
+4 pts above normal
Worst hour 6 PM · 28% 10 kt gusts, high ceiling
EWR Newark #20
18% leave 15+ min late
1% cancelled, ~5 of 338
+4 pts above normal
Worst hour 6 PM · 30% 13 kt gusts, high ceiling
BOS Boston Logan #21
Delay program, avg 74 min (runway construction)
18% leave 15+ min late
1% cancelled, ~5 of 445
+4 pts above normal
Worst hour 7 PM · 32% 16 kt gusts, high ceiling
ATL Atlanta #22
18% leave 15+ min late
1% cancelled, ~12 of 951
+3 pts above normal
Worst hour 6 PM · 29% 14 kt gusts, high ceiling
SLC Salt Lake City #23
15% leave 15+ min late
1% cancelled, ~4 of 338
+2 pts above normal
Worst hour 7 PM · 35% 12 kt gusts, high ceiling
IAD Washington Dulles #24
14% leave 15+ min late
1% cancelled, ~2 of 177
+3 pts above normal
Worst hour 6 PM · 28% 7 kt gusts, high ceiling
MSP Minneapolis–St Paul #25
14% leave 15+ min late
1% cancelled, ~4 of 368
+3 pts above normal
Worst hour 7 PM · 25% 15 kt gusts, high ceiling
Table view
#AirportFAA status Late departureVs. normalCancelled
1DFW Dallas–Fort Worth Rough weather, no program posted yet50%+31 pts 17%
2ORD Chicago O'Hare Rough weather, no program posted yet33%+18 pts 3%
3IAH Houston Bush Normal operations30%+15 pts 2%
4DEN Denver Normal operations29%+11 pts 1%
5MIA Miami Normal operations28%+11 pts 4%
6FLL Fort Lauderdale Normal operations27%+8 pts 2%
7LAS Las Vegas Normal operations24%+2 pts 1%
8MCO Orlando Normal operations22%+8 pts 2%
9PHX Phoenix Normal operations22%+2 pts 1%
10BWI Baltimore/Washington Normal operations22%+2 pts 1%
11SFO San Francisco Normal operations22%+5 pts 1%
12SEA Seattle–Tacoma Normal operations21%+4 pts 1%
13DTW Detroit Normal operations21%+8 pts 1%
14CLT Charlotte Normal operations20%+3 pts 1%
15DCA Washington National Normal operations20%+3 pts 2%
16LAX Los Angeles Normal operations20%+3 pts 1%
17LGA New York LaGuardia Normal operations19%+4 pts 2%
18JFK New York JFK Normal operations18%+4 pts 1%
19PHL Philadelphia Normal operations18%+4 pts 2%
20EWR Newark Normal operations18%+4 pts 1%
21BOS Boston Logan Delay program, avg 74 min (runway construction)18%+4 pts 1%
22ATL Atlanta Normal operations18%+3 pts 1%
23SLC Salt Lake City Normal operations15%+2 pts 1%
24IAD Washington Dulles Normal operations14%+3 pts 1%
25MSP Minneapolis–St Paul Normal operations14%+3 pts 1%

“Above normal” (the red part of each bar) is how much worse the late-departure chance is than our estimate for the same flights on a normal day — today that’s the weather forecast; live FAA and airport conditions will join it. Every chart uses the same scale. Airports with too little flight data aren’t shown. Schedule: FAA flight plans for 6 flights; the other 21,243 (marked “typical”) come from a recent Thursday’s schedule until the FAA publishes them, usually about a day ahead.

Questions people are watching

Will a typical DFW departure be cancelled Thursday?DFW · Dallas–Fort Worth 17% Yes 17% No 83% Will a typical MIA departure be cancelled Thursday?MIA · Miami 4% Yes 4% No 96% Will a typical ORD departure be cancelled Thursday?ORD · Chicago O'Hare 3% Yes 3% No 97% Will a typical IAH departure be cancelled Thursday?IAH · Houston Bush 2% Yes 2% No 98%