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
2FAA delay programs right now
22%average chance of a late departure on Sunday
<1%average chance of a cancellation on Sunday

Typical odds Too early for a weather forecast — these are typical odds for departures at these airports on a Sunday 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 Sunday, Oct 11, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

Airports on Sunday, October 18

Typical odds for Sun, Oct 18, worst first. Forecast issued Mon 12:00 AM ET.

  • Chance a departure that hour leaves 15+ min late on a normal day
  • Extra today
DFW Dallas–Fort Worth #1
29% leave 15+ min late
2% cancelled, ~20 of 1050
+5 pts above normal
Worst hour 6 PM · 40% Clear
ORD Chicago O'Hare #2
27% leave 15+ min late
2% cancelled, ~20 of 1291
+6 pts above normal
Worst hour 8 PM · 37% Clear
DEN Denver #3
26% leave 15+ min late
<1% cancelled, ~8 of 1007
+5 pts above normal
Worst hour 6 PM · 40% Clear
LAS Las Vegas #4
26% leave 15+ min late
<1% cancelled, ~5 of 568
+3 pts above normal
Worst hour 9 PM · 42% Clear
PHX Phoenix #5
Departure delays 16 minutes–30 minutes
25% leave 15+ min late
<1% cancelled, ~5 of 653
+2 pts above normal
Worst hour 6 PM · 39% Clear
FLL Fort Lauderdale #6
25% leave 15+ min late
<1% cancelled, ~3 of 312
+2 pts above normal
Worst hour 8 PM · 41% Clear
EWR Newark #7
25% leave 15+ min late
<1% cancelled, ~5 of 515
+4 pts above normal
Worst hour 6 PM · 38% Clear
MIA Miami #8
25% leave 15+ min late
<1% cancelled, ~4 of 469
+1 pt above normal
Worst hour 8 PM · 35% Clear
SFO San Francisco #9
24% leave 15+ min late
<1% cancelled, ~5 of 603
+2 pts above normal
Worst hour 2 PM · 32% Clear
LAX Los Angeles #10
24% leave 15+ min late
<1% cancelled, ~7 of 759
+2 pts above normal
Worst hour 7 PM · 32% Clear
BWI Baltimore/Washington #11
23% leave 15+ min late
<1% cancelled, ~2 of 291
+2 pts above normal
Worst hour 7 PM · 38% Clear
MCO Orlando #12
22% leave 15+ min late
<1% cancelled, ~4 of 538
+2 pts above normal
Worst hour 9 PM · 36% Clear
IAH Houston Bush #13
21% leave 15+ min late
<1% cancelled, ~5 of 607
+3 pts above normal
Worst hour 7 PM · 30% Clear
SEA Seattle–Tacoma #14
21% leave 15+ min late
<1% cancelled, ~5 of 598
+3 pts above normal
Worst hour 8 PM · 26% Clear
CLT Charlotte #15
21% leave 15+ min late
<1% cancelled, ~7 of 748
+1 pt above normal
Worst hour 6 PM · 30% Clear
JFK New York JFK #16
20% leave 15+ min late
<1% cancelled, ~5 of 564
+2 pts above normal
Worst hour 9 PM · 28% Clear
PHL Philadelphia #17
20% leave 15+ min late
<1% cancelled, ~4 of 452
+1 pt above normal
Worst hour 6 PM · 30% Clear
BOS Boston Logan #18
Delay program, avg 75 min (low ceilings)
20% leave 15+ min late
<1% cancelled, ~5 of 564
+4 pts above normal
Worst hour 7 PM · 33% Clear
DCA Washington National #19
20% leave 15+ min late
1% cancelled, ~4 of 420
+2 pts above normal
Worst hour 6 PM · 32% Clear
DTW Detroit #20
20% leave 15+ min late
<1% cancelled, ~4 of 448
+4 pts above normal
Worst hour 8 PM · 31% Clear
ATL Atlanta #21
20% leave 15+ min late
<1% cancelled, ~8 of 1133
+2 pts above normal
Worst hour 6 PM · 30% Clear
LGA New York LaGuardia #22
18% leave 15+ min late
1% cancelled, ~6 of 490
+3 pts above normal
Worst hour 8 PM · 30% Clear
SLC Salt Lake City #23
17% leave 15+ min late
<1% cancelled, ~3 of 364
+3 pts above normal
Worst hour 7 PM · 31% Clear
MSP Minneapolis–St Paul #24
17% leave 15+ min late
<1% cancelled, ~3 of 467
+3 pts above normal
Worst hour 4 PM · 26% Clear
IAD Washington Dulles #25
15% leave 15+ min late
<1% cancelled, ~3 of 362
+1 pt above normal
Worst hour 6 PM · 24% Clear
Table view
#AirportFAA status Late departureVs. normalCancelled
1DFW Dallas–Fort Worth Normal operations29%+5 pts 2%
2ORD Chicago O'Hare Normal operations27%+6 pts 2%
3DEN Denver Normal operations26%+5 pts <1%
4LAS Las Vegas Normal operations26%+3 pts <1%
5PHX Phoenix Departure delays 16 minutes–30 minutes25%+2 pts <1%
6FLL Fort Lauderdale Normal operations25%+2 pts <1%
7EWR Newark Normal operations25%+4 pts <1%
8MIA Miami Normal operations25%+1 pt <1%
9SFO San Francisco Normal operations24%+2 pts <1%
10LAX Los Angeles Normal operations24%+2 pts <1%
11BWI Baltimore/Washington Normal operations23%+2 pts <1%
12MCO Orlando Normal operations22%+2 pts <1%
13IAH Houston Bush Normal operations21%+3 pts <1%
14SEA Seattle–Tacoma Normal operations21%+3 pts <1%
15CLT Charlotte Normal operations21%+1 pt <1%
16JFK New York JFK Normal operations20%+2 pts <1%
17PHL Philadelphia Normal operations20%+1 pt <1%
18BOS Boston Logan Delay program, avg 75 min (low ceilings)20%+4 pts <1%
19DCA Washington National Normal operations20%+2 pts 1%
20DTW Detroit Normal operations20%+4 pts <1%
21ATL Atlanta Normal operations20%+2 pts <1%
22LGA New York LaGuardia Normal operations18%+3 pts 1%
23SLC Salt Lake City Normal operations17%+3 pts <1%
24MSP Minneapolis–St Paul Normal operations17%+3 pts <1%
25IAD Washington Dulles Normal operations15%+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 Sunday, Oct 11, 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 DFW departure be cancelled Sunday?DFW · Dallas–Fort Worth 2% Yes 2% No 98% Will a typical ORD departure be cancelled Sunday?ORD · Chicago O'Hare 2% Yes 2% No 98% Will a typical LGA departure be cancelled Sunday?LGA · New York LaGuardia 1% Yes 1% No 99% Will a typical DCA departure be cancelled Sunday?DCA · Washington National 1% Yes 1% No 99%