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
0FAA delay programs right now
21%average chance of a late departure on Saturday
1%average chance of a cancellation on Saturday

Typical odds Too early for a weather forecast — these are typical odds for departures at these airports on a Saturday in October, from the weather this date has had in past years. They’ll switch to forecast-based odds about 3 days before departure.

Schedule: the flights that flew on Saturday, Oct 24, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

Airports on Saturday, October 31

Typical odds for Sat, Oct 31, worst first. Forecast issued Mon 4:00 PM ET.

  • Chance a departure that hour leaves 15+ min late on a normal day
  • Extra today
ORD Chicago O'Hare #1
28% leave 15+ min late
2% cancelled, ~28 of 1251
+8 pts above normal
Worst hour 6 PM · 37% Clear
DFW Dallas–Fort Worth #2
26% leave 15+ min late
1% cancelled, ~12 of 1029
+3 pts above normal
Worst hour 5 PM · 36% Clear
EWR Newark #3
26% leave 15+ min late
1% cancelled, ~7 of 468
+7 pts above normal
Worst hour 7 PM · 39% Clear
FLL Fort Lauderdale #4
26% leave 15+ min late
2% cancelled, ~5 of 277
+5 pts above normal
Worst hour 6 PM · 42% Clear
MIA Miami #5
25% leave 15+ min late
<1% cancelled, ~5 of 485
+2 pts above normal
Worst hour 8 PM · 37% Clear
CLT Charlotte #6
24% leave 15+ min late
1% cancelled, ~8 of 737
+4 pts above normal
Worst hour 6 PM · 33% Clear
PHL Philadelphia #7
22% leave 15+ min late
1% cancelled, ~5 of 426
+5 pts above normal
Worst hour 10 PM · 32% Clear
BOS Boston Logan #8
22% leave 15+ min late
1% cancelled, ~7 of 463
+8 pts above normal
Worst hour 9 PM · 36% Clear
JFK New York JFK #9
22% leave 15+ min late
1% cancelled, ~7 of 513
+5 pts above normal
Worst hour 6 PM · 31% Clear
SFO San Francisco #10
21% leave 15+ min late
<1% cancelled, ~5 of 516
+4 pts above normal
Worst hour 2 PM · 29% Clear
MCO Orlando #11
21% leave 15+ min late
<1% cancelled, ~5 of 538
+3 pts above normal
Worst hour 7 PM · 31% Clear
BWI Baltimore/Washington #12
21% leave 15+ min late
<1% cancelled, ~2 of 241
+5 pts above normal
Worst hour 7 PM · 36% Clear
PHX Phoenix #13
20% leave 15+ min late
<1% cancelled, ~4 of 536
+2 pts above normal
Worst hour 6 PM · 31% Clear
SEA Seattle–Tacoma #14
20% leave 15+ min late
<1% cancelled, ~4 of 547
+4 pts above normal
Worst hour 10 PM · 24% Clear
DEN Denver #15
20% leave 15+ min late
<1% cancelled, ~6 of 884
+3 pts above normal
Worst hour 6 PM · 26% Clear
IAH Houston Bush #16
20% leave 15+ min late
<1% cancelled, ~5 of 559
+4 pts above normal
Worst hour 1 PM · 28% Clear
LAX Los Angeles #17
20% leave 15+ min late
<1% cancelled, ~6 of 654
+1 pt above normal
Worst hour 3 PM · 24% Clear
DCA Washington National #18
20% leave 15+ min late
2% cancelled, ~5 of 330
+5 pts above normal
Worst hour 9 PM · 30% Clear
DTW Detroit #19
19% leave 15+ min late
<1% cancelled, ~4 of 391
+6 pts above normal
Worst hour 8 PM · 27% Clear
MSP Minneapolis–St Paul #20
19% leave 15+ min late
2% cancelled, ~7 of 376
+8 pts above normal
Worst hour 5 PM · 27% Clear
LAS Las Vegas #21
19% leave 15+ min late
<1% cancelled, ~4 of 456
+2 pts above normal
Worst hour 7 PM · 28% Clear
IAD Washington Dulles #22
18% leave 15+ min late
1% cancelled, ~4 of 331
+6 pts above normal
Worst hour 6 PM · 26% Clear
LGA New York LaGuardia #23
18% leave 15+ min late
2% cancelled, ~5 of 324
+6 pts above normal
Worst hour 6 PM · 28% Clear
ATL Atlanta #24
18% leave 15+ min late
<1% cancelled, ~8 of 979
+4 pts above normal
Worst hour 6 PM · 25% Clear
SLC Salt Lake City #25
12% leave 15+ min late
<1% cancelled, ~2 of 313
+1 pt above normal
Worst hour 6 PM · 18% Clear
Table view
#AirportFAA status Late departureVs. normalCancelled
1ORD Chicago O'Hare Normal operations28%+8 pts 2%
2DFW Dallas–Fort Worth Normal operations26%+3 pts 1%
3EWR Newark Normal operations26%+7 pts 1%
4FLL Fort Lauderdale Normal operations26%+5 pts 2%
5MIA Miami Normal operations25%+2 pts <1%
6CLT Charlotte Normal operations24%+4 pts 1%
7PHL Philadelphia Normal operations22%+5 pts 1%
8BOS Boston Logan Normal operations22%+8 pts 1%
9JFK New York JFK Normal operations22%+5 pts 1%
10SFO San Francisco Normal operations21%+4 pts <1%
11MCO Orlando Normal operations21%+3 pts <1%
12BWI Baltimore/Washington Normal operations21%+5 pts <1%
13PHX Phoenix Normal operations20%+2 pts <1%
14SEA Seattle–Tacoma Normal operations20%+4 pts <1%
15DEN Denver Normal operations20%+3 pts <1%
16IAH Houston Bush Normal operations20%+4 pts <1%
17LAX Los Angeles Normal operations20%+1 pt <1%
18DCA Washington National Normal operations20%+5 pts 2%
19DTW Detroit Normal operations19%+6 pts <1%
20MSP Minneapolis–St Paul Normal operations19%+8 pts 2%
21LAS Las Vegas Normal operations19%+2 pts <1%
22IAD Washington Dulles Normal operations18%+6 pts 1%
23LGA New York LaGuardia Normal operations18%+6 pts 2%
24ATL Atlanta Normal operations18%+4 pts <1%
25SLC Salt Lake City Normal operations12%+1 pt <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: the flights that flew on Saturday, Oct 24, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

Questions people are watching

Will a typical ORD departure be cancelled Saturday?ORD · Chicago O'Hare 2% Yes 2% No 98% Will a typical MSP departure be cancelled Saturday?MSP · Minneapolis–St Paul 2% Yes 2% No 98% Will a typical FLL departure be cancelled Saturday?FLL · Fort Lauderdale 2% Yes 2% No 98% Will a typical LGA departure be cancelled Saturday?LGA · New York LaGuardia 2% Yes 2% No 98%