Route reliability record
ATL→MYR
Atlanta to Myrtle Beach
- Flights
- 1,511
- Period
- September 2025 to August 2026
- Distance
- 317 mi
- Carriers
- 1
This route lands a B, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 1,511 ATL to MYR flights, with a median arrival 8 minutes early.
Best time to fly ATL to MYR: a 11am–2pm departure, ideally on a Wednesday. Flights in that window arrived on time 89.8% of the time and Wednesday flights 87.5%, against 82.2% for the route overall.
Set against the rest of the country, this route's record is 5 points better than the US average of 77.3%. That gap is worth roughly 49 fewer late arrivals for every thousand flights.
Key figures
On time
82.2%
Arrivals under 15 minutes late, of 1,479 completed flights
Avg delay
57 min
Across delayed arrivals only, not all flights
Cancelled
2.12%
National rate is 1.89%
Best carrier
Delta
82.2% on time across 1,511 flights
These figures cover 1,511 flights between September 2025 and August 2026. The median arrival is 8 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Which airline is most reliable on ATL to MYR
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 1,511 | 82.2% | 57 min | 2.12% | B |
Flight by flight
Flights on ATL to MYR
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
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Departure window
The best time of day to leave
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 1,511 flights.
- 5am–8am—
- 8am–11am365 flights79.9%
- 11am–2pm316 flights89.8%
- 2pm–5pm241 flights80.3%
- 5pm–8pm224 flights80.5%
- 8pm–5am365 flights79.9%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 89.8% on time, ahead of 8pm–5am at 79.9%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8am–11am window is the busiest, with 365 flights scheduled in it.
Explore
Filter ATL to MYR by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On ATL to MYR, the best departure window is 11am–2pm at 89.8% on time and the worst is 8am–11am at 79.9%, a real gap of 9.9 points. All US flights leaving 11am–2pm ran 78.3%.
- 5–8am—
- 8–11am79.9%
- 11am–2pm89.8%
- 2–5pm80.3%
- 5–8pm80.5%
- 8pm–5am79.9%
best all US flightsScale 60% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 20 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 70.6% on time, 20 points below April, the best at 91.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 149 flights.
Across the week, Wednesday is the strongest day at 87.5% on time and Monday the weakest at 78.5%, a spread of 9 points.
Delay causes
Why this route gets delayed
Carrier accounts for 46% of the 15,000 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Carrier
- 29%Late-arriving aircraft
- 19%National Airspace System
- 6%Extreme weather
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 6,815 of the 15,000 delay minutes reported here. The split is drawn from 14,959 reported delay minutes.
Cancellations sit at 2.12% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here actually costs
5.1% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 317 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 88.6% on time across 1,511 flights, 6 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 6 points of difference.
The sample behind these figures is 1,511 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in MYR after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 91.0% on time and July 70.6%, a swing of 20 points. If the dates move at all, move them out of July before you think about anything else. 1,479 completed flights over 12 months sit behind that.
Common questions
ATL to MYR questions
How often is ATL to MYR delayed?
About one flight in six arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 17.8% of the 1,511 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.
How reliable is ATL to MYR compared with the rest of the country?
82.2% of flights arrive on time here against a national 77.3%, a difference of 5 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on ATL to MYR?
The 11am–2pm departure window is the strongest at 89.8% on time. The 8pm–5am window is the weakest at 79.9%, 10 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on ATL to MYR?
July is the weakest month at 70.6% on time, compared with 91.0% in April. Across the year that is 20 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- MYR to ATL — the return legseparate record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- ATL to LGA, a related route72.3%
- CLT to MYR, a related route76.6%
- ATL to MCO, a related route70.3%
- Delta Air Lines on-time record82.2%
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
Direction matters. ATL to MYR and MYR to ATL are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.