Route on-time record

ATL to LGA: most on-time flights and the best time to fly

Atlanta (Hartsfield Jackson Atlanta International Airport) to New York (LaGuardia Airport). 8,278 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 3.5% were cancelled. The most reliable flight number was Delta 323 at 7:30 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

ATL → LGA

Atlanta to New York: 8,278 nonstop flights a year

On time (12 months)

73%

Cancelled

3.5%

avg delay 22 min

Best time to leave

Before 9 AM

89% on time vs 57% 6 to 9 PM

Most reliable airline

Delta

73% chance on time

Check ATL to LGA fares

Lowest nonstop fare seen in the next two months: $39 (Frontier 3288 on 2026-11-10). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

#1 · Delta 323
7:30 AM → 9:42 AM2h 12m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
On time (history)
91%
Cancelled
3.0%
Avg arrival delay
5 min
- Arrived on time 91% of the time (324 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 57%).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Strong track record · 324 flights
Find Delta 323 fares Opens this date on Aviasales
#2 · Delta 404
6:30 AM → 8:40 AM2h 10m nonstop
Local times, typical schedule. Last flown 2026-05-29.
88%
chance on time
On time (history)
91%
Cancelled
4.0%
Avg arrival delay
4 min
- Arrived on time 91% of the time (238 flights, Jun 2025 to May 2026).
- Cancelled 4.0% of the time (10 of 248).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 57%).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Strong track record · 238 flights
Find Delta 404 fares Opens this date on Aviasales
#3 · Delta 513
8:30 AM → 10:43 AM2h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
On time (history)
89%
Cancelled
4.3%
Avg arrival delay
6 min
- Arrived on time 89% of the time (332 flights, Jun 2025 to May 2026).
- Cancelled 4.3% of the time (15 of 347).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 57%).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Strong track record · 332 flights
Find Delta 513 fares Opens this date on Aviasales
#4 · Delta 557
9:30 AM → 11:46 AM2h 16m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
On time (history)
87%
Cancelled
1.8%
Avg arrival delay
8 min
- Arrived on time 87% of the time (331 flights, Jun 2025 to May 2026).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Strong track record · 331 flights
Find Delta 557 fares Opens this date on Aviasales
#5 · Republic 4570 · sold as American Eagle, Delta Connection or United Express
6:10 AM → 8:33 AM2h 23m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as Republic 4600; its record covers all of them.
85%
chance on time
On time (history)
88%
Cancelled
4.8%
Avg arrival delay
16 min
- Arrived on time 88% of the time (59 flights, Jun 2025 to May 2026).
- Cancelled 4.8% of the time (3 of 62).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 6 to 9 PM: 57%).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Limited track record · 59 flights
Find 6:10 AM flight fares Opens this date on Aviasales
#6 · Republic 4595 · sold as American Eagle, Delta Connection or United Express
9:04 AM → 11:29 AM2h 25m nonstop
Local times, typical schedule. Last flown 2026-05-30.
83%
chance on time
On time (history)
89%
Cancelled
0.0%
Avg arrival delay
8 min
- Arrived on time 89% of the time (74 flights, Jun 2025 to May 2026).
- Never cancelled in 74 scheduled flights.
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
Moderate track record · 74 flights
Find 9:04 AM flight fares Opens this date on Aviasales
#7 · Delta 467
11:30 AM → 1:41 PM2h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
85%
Cancelled
2.4%
Avg arrival delay
8 min
- Arrived on time 85% of the time (323 flights, Jun 2025 to May 2026).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
- Lands inside LGA's trouble window: 54% of its 285 ground stops and delay programs started between noon and 6 PM.
Strong track record · 323 flights
Find Delta 467 fares Opens this date on Aviasales
#8 · Republic 4580 · sold as American Eagle, Delta Connection or United Express
11:15 AM → 1:40 PM2h 25m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 91% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
- Lands inside LGA's trouble window: 54% of its 285 ground stops and delay programs started between noon and 6 PM.
Limited track record · 44 flights
Find 11:15 AM flight fares Opens this date on Aviasales
#9 · Republic 4628 · sold as American Eagle, Delta Connection or United Express
9:24 AM → 11:47 AM2h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 9:24 AM flight fares Opens this date on Aviasales
#10 · Delta 371
10:30 AM → 12:44 PM2h 14m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
On time (history)
84%
Cancelled
2.6%
Avg arrival delay
8 min
- Arrived on time 84% of the time (336 flights, Jun 2025 to May 2026).
- Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
- Lands inside LGA's trouble window: 54% of its 285 ground stops and delay programs started between noon and 6 PM.
Strong track record · 336 flights
Find Delta 371 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

Delta Air Lines73%
4,937 flights · 75% on time as flown · 3.0% cancel
Republic Airways (sold as American Eagle, Delta Connection or United Express)72%
1,419 flights · 77% on time as flown · 4.9% cancel
Southwest Airlines67%
1,051 flights · 69% on time as flown · 2.9% cancel
Frontier Airlines53%
858 flights · 54% on time as flown · 4.6% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

Before 9 AM89%
1,570 flights · avg delay 7 min
9 AM to noon84%
1,691 flights · avg delay 11 min
Noon to 3 PM70%
1,614 flights · avg delay 21 min
3 to 6 PM65%
1,160 flights · avg delay 32 min
6 to 9 PM57%
1,716 flights · avg delay 36 min
After 9 PM60%
527 flights · avg delay 37 min

Best day: Wednesday (81%). Worst: Sunday (72%).

Smarter routing

Nearby airports that run more on time

ATL → HPN 74% chance on time
Hartsfield Jackson Atlanta International Airport to Westchester County Airport · 722 flights a year · 22 mi from your airports · yours: 70%
Rank flights Fares

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

What delays this route

Air traffic control and airport volume41%
Late-arriving aircraft27%
Airline (crew, maintenance, boarding)26%
Severe weather6%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

ATL to LGA questions

What time of day is best to fly ATL to LGA?: Before 9 AM: 89% of flights arrived on time, against 57% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from ATL to LGA?: Delta, with a season-adjusted 73% chance of operating and arriving on time over 4,937 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on ATL to LGA?: July (65% on time); the best was September (85%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?: No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from ATL

Live status: FAA delays and ground stops

All Products

Aviation Intelligence

Alerts & Airspace

Free Pilot Tools & Widgets

RC Aviation

Games & Learning

Weather Research & More

Pilot Resources

My Airports

Ask ATIS