79% of flights from Chicago to Myrtle Beach arrived on time over the past 12 months. That is about the typical U.S. route. The 8 a.m. departures ran on time 84% of the time; the 11 a.m. ones 74%. Most reliable airline: American Airlines (85%). 6% of flights arrived more than an hour late or not at all.
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for ORD → MYR: when a flight was late, it was under 45 minutes late 60% of the time. About 1 in 19 flights landed an hour or more late, and 1 in 97 three hours or more; 0.6% were cancelled outright.
- On time or early79%
- 15–30 min late9.3%
- 30–60 min late6.2%
- 1–2 hours late3.1%
- 2–3 hours late1.0%
- 3+ hours late1.0%
- Diverted0.2%
- Cancelled0.6%
Share of all 486 scheduled flights, past 12 months, by arrival time against schedule.
By airline
| Airline | Flights | On time | Cancelled | Typical arrival | 1h+ late | Avg when late | Operated by |
|---|---|---|---|---|---|---|---|
| United Airlines | 296 | 75% | 0.3% | −2 min | 6.8% | +60 min | SkyWest 52%, United Airlines 47%, Republic Airways 1% |
| American Airlines | 190 | 85% | 1.1% | −15 min | 2.6% | +51 min | Envoy 68%, Republic Airways 32% |
Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.
Best time of day to fly
On-time rate by scheduled departure hour (local time at ORD). Delays build through the day as late planes knock on, so early flights usually do best.
By airline and hour
| Departs | United Airlines | American Airlines |
|---|---|---|
| 8 a.m. | — | 84% |
| 11 a.m. | 74% | — |
By month
Each calendar month pooled over 2023–2026. Best: May (84%). Worst: August (74%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 69 | — | — |
| Tuesday | 67 | — | — |
| Wednesday | 67 | — | — |
| Thursday | 66 | — | — |
| Friday | 66 | — | — |
| Saturday | 84 | — | — |
| Sunday | 67 | — | — |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: weather 3
Month by month
Not enough months with data to draw a trend.
Worst days in the past year
| Date | Flights | On time | Cancelled |
|---|---|---|---|
| Apr 2, 2026 | 3 | 0% | 0 |
| Jun 8, 2026 | 3 | 33% | 0 |
| Jun 24, 2026 | 3 | 33% | 0 |
| Jun 1, 2026 | 3 | 33% | 0 |
| May 24, 2026 | 3 | 33% | 0 |
Questions
How often are flights from ORD to MYR on time?
79% of 486 scheduled flights from Chicago, IL to Myrtle Beach, SC arrived within 15 minutes of schedule between September 2025 and August 2026. 0.6% were cancelled.
What is the best time of day to fly ORD to MYR?
Flights scheduled to leave at 8 a.m. were the most reliable (84% on time). The 11 a.m. departures were the least (74%).
Which airline is most on time from ORD to MYR?
American Airlines: 85% of its 190 flights on the route arrived on time. United Airlines: 75%.
What month has the most delays from ORD to MYR?
August (74% on time). The best month is May (84%), over 2023–2026.
Related
- MYR → ORD (return)
- Chicago O'Hare (ORD) delays by hour
- Flights into Myrtle Beach (MYR)
- United Airlines on-time record
- American Airlines on-time record
- Connecting off this flight? Check the risk
Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.