GroundStop.app

Ground stop statistics

Which US airports get ground-stopped most, when, and why: ground stops recorded by GroundStop.app over the last 90 days.

Updated Oct 15, 1:19 AM ET · records since Jul 17, 2026 · days are Eastern time

Ground stops, last 7 days
46
+18% vs. same week last month
Airports affected, last 7 days
17
No change vs. same week last month
Ground stops, last 30 days
197
-18% vs. previous 30 days
Time under ground stops, last 30 days
275 hr
-41% vs. previous 30 days
Ground stops per day
Last 90 days, by the day each stop started. Click a day to replay it on the map.
0102030Jul 18Aug 1Sep 1Oct 1
Busiest days
Most ground stops started
  1. 1Sat, Jul 1827 stops · 19 airports Replay this day
  2. 2Thu, Aug 623 stops · 17 airports Replay this day
  3. 3Tue, Jul 2823 stops · 17 airports Replay this day
  4. 4Tue, Jul 2122 stops · 18 airports Replay this day
  5. 5Mon, Aug 322 stops · 16 airports Replay this day
  6. 6Thu, Aug 2722 stops · 11 airports Replay this day
  7. 7Sun, Aug 221 stops · 10 airports Replay this day
  8. 8Mon, Jul 2719 stops · 13 airports Replay this day
  9. 9Mon, Aug 1017 stops · 15 airports Replay this day
  10. 10Wed, Sep 217 stops · 13 airports Replay this day

Most ground-stopped airports

Ranked by number of ground stops. Lengths only count stops whose start and end we saw.

198 ground stops at 39 airports, 276 hr in all.

RankAirportGround stopsAverage
1AUS
16
1 hr 20 min
2ORD
15
1 hr 34 min
3LGA
14
1 hr 7 min
4TEB
13
1 hr 50 min
5BOS
12
1 hr 12 min
6EWR
11
1 hr 36 min
7DEN
11
1 hr 26 min
8DFW
9
2 hr 9 min
9LAS
8
1 hr 19 min
10PHX
8
43 min
11JFK
6
1 hr 20 min
12DCA
6
1 hr 10 min
13RDU
5
1 hr 25 min
14ATL
5
1 hr 14 min
15SFO
5
1 hr 14 min
Causes
Share of ground stops in the last 90 days, by stated reason
  • Thunderstorms63%496 stops
  • Traffic volume8%63 stops
  • Runway & airport6%44 stops
  • Low ceilings & visibility5%43 stops
  • Other5%37 stops
  • Wind5%36 stops
  • Equipment & outages4%28 stops
  • Staffing3%23 stops
  • Security & emergencies3%21 stops
Air traffic control centers
Ground stops at airports in each center's airspace, last 90 days

Longest ground stops

Last 90 days

AirportStarted (ET)LengthReplay
EWRJul 21, 8:45 AM14 hr 37 min
JFKJul 18, 12:43 PM12 hr 3 min
TEBJul 18, 11:29 AM12 hr 1 min
BOSJul 21, 11:04 AM11 hr 48 min
EWRJul 18, 12:34 PM11 hr 25 min
LGAJul 18, 10:07 AM11 hr 13 min
BOSJul 18, 11:59 AM11 hr 2 min
TEBJul 21, 7:51 AM10 hr 57 min
BDLJul 18, 12:09 PM10 hr 56 min
LGAJul 21, 1:00 PM10 hr 18 min

About these numbers

Which US airport has the most ground stops?
In the last 90 days, New York LaGuardia (LGA) had the most ground stops recorded by GroundStop.app: 60, lasting 2 hr 42 min on average.
What causes most ground stops?
Thunderstorms caused 63% of the ground stops recorded in the last 90 days. Weather (thunderstorms, low ceilings, wind and snow) is the most common reason overall, followed by traffic volume and equipment problems.
Where do these numbers come from?
GroundStop.app checks the national airspace status feed every minute and records when each ground stop starts and ends. Older days are rebuilt from published advisories. Counts are by the day a ground stop started, in Eastern time.

See also: How long do ground stops last? · Replay a day · Your rights when flights are delayed