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DelayAtlas

Route reliability record

EWRMYR

Newark to Myrtle Beach

Flights
1,002
Period
July 2025 to June 2026
Distance
550 mi
Carriers
3
B−GRADE

This route carries a cancellation problem, not just a delay problem: 4.7% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,002 EWR to MYR flights, of which Republic Airways flew 487 at 82.1% on time.

Best time to fly EWR to MYR: a 5am–8am departure, ideally on a Friday. Flights in that window arrived on time 91.4% of the time and Friday flights 83.9%, against 78.5% for the route overall.

The US average over the same twelve months is 77.6%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

78.5%

Arrivals under 15 minutes late, of 955 completed flights

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

4.69%

National rate is 1.81%

Best carrier

Republic

82.1% on time across 487 flights

These figures cover 1,002 flights between July 2025 and June 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

Which airline is most reliable on EWR to MYR

The choice of carrier is not cosmetic here. Republic Airways arrives on time 82.1% of the time; Spirit Airlines manages 70.5%. Sample sizes sit next to every figure, because a two-point gap across 382 flights means less than a ten-point one.

On-time performance by carrier on EWR to MYR
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlinesthin sample13387.8%65 min1.50%A
Republic Airways48782.1%59 min3.90%B−
Spirit Airlines38270.5%91 min6.81%C−

Spirit Airlines cancels 6.8% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Best ways to make this trip

The most reliable ways to fly Newark to Myrtle Beach

Every airline on this route, ranked by how often a scheduled flight actually operated and arrived on time, with its best departure time and most punctual flight number. No nearby airport pair beat these.

Most reliable ways to fly from EWR to MYR
OptionAirlineSuccessOn timeCancelledBest departureMost punctual flight
1. EWRMYRNewark to Myrtle BeachRepublic Airways78.9%82.1%3.90%8am–11am, Tue
2. EWRMYRNewark to Myrtle BeachSpirit Airlines65.7%70.5%6.81%5am–8am, Fri

Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.

Plan this trip by month, day and time

Departure window

The best time of day to leave

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 32 points, against 12 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am117 flights91.4%
  • 8am–11am311 flights87.0%
  • 11am–2pm143 flights67.4%
  • 2pm–5pm287 flights78.1%
  • 5pm–8pm75 flights61.1%
  • 8pm–5am69 flights59.7%

Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.

The 8pm–5am window is where this operation falls apart: 59.7% on time, against 91.4% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 311 flights scheduled in it.

Across the year

When delays peak on this route

This route's year swings by 30 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.

On-time rate by calendar month78J86F70M84A95M87J66J82A85S71O72N68D
Darker means more delays. Figures are on-time percentages.May best, July worst

July is the worst month at 65.5% on time, 30 points below May, the best at 95.2%. 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. August was the busiest month here, with 121 flights.

Across the week, Friday is the strongest day at 83.9% on time and Sunday the weakest at 73.7%. 10 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week73.9Mon80.5Tue80.6Wed78.9Thu83.9Fri78.0Sat73.7Sun
Monday: 73.9 percent on time. Tuesday: 80.5 percent on time. Wednesday: 80.6 percent on time. Thursday: 78.9 percent on time. Friday: 83.9 percent on time. Saturday: 78.0 percent on time. Sunday: 73.7 percent on time

Delay causes

Why this route gets delayed

One category carries most of the weight here. National Airspace System accounts for 44% of the 16,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

  • National Airspace System
    44%
  • Late-arriving aircraft
    27%
  • Carrier
    21%
  • Extreme weather
    7%
  • Security
    0%

44% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 6,882 minutes out of 16,000, against a national NAS share of 21%. The split is drawn from 15,534 reported delay minutes.

Cancellations run at 4.69%, against 1.81% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here actually costs

8.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

The 550 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 79.0% on time across 1,006 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 1,002 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

Work out the risk of missing a connection in MYR after this flight

What to do with this

Booking this route

Put together: the delay figures matter less here than the 4.69% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 955 completed flights over 12 months sit behind that.

Common questions

EWR to MYR questions

How often is EWR to MYR delayed?

About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.5% of the 1,002 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.

Which airline is most reliable on EWR to MYR?

Republic Airways leads at 82.1% on time across 487 flights. Spirit Airlines is at the other end on 70.5%, a gap of 12 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on EWR to MYR?

The 5am–8am departure window is the strongest at 91.4% on time. The 8pm–5am window is the weakest at 59.7%, 32 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 EWR to MYR?

July is the weakest month at 65.5% on time, compared with 95.2% in May. Across the year that is 30 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

Direction matters. EWR to MYR and MYR to EWR 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.