ATL to SAN flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to San Diego International Airport · 1,892 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.6%
14 flights
Avg arrival delay
11 min
45 min when late
Airlines
2
2,379 flights tracked
Key facts
- Flights from Atlanta (ATL) to San Diego (SAN) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.6% were cancelled, and 4% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (83% on time); Delta Air Lines was the least (79%).
- Departures scheduled around 10am did best (89% on time); around 7pm did worst (69%).
- Wednesday was the most reliable day to fly (87% on time) and Sunday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
Which airline is most on time from ATL to SAN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Alaska Airlines | 83% | 0.0% | 7 min | 2.4% | 211 |
| Delta Air Lines | 79% | 0.6% | 11 min | 4.4% | 2,168 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am88%362 flights
- 9am84%32 flights
- 10am89%74 flights
- 11am80%346 flights
- 1pm82%85 flights
- 2pm84%163 flights
- 3pm78%184 flights
- 4pm78%312 flights
- 5pm75%88 flights
- 6pm74%227 flights
- 7pm69%189 flights
- 8pm83%66 flights
- 9pm74%250 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%0.3% cancelled
- Tuesday84%0.0% cancelled
- Wednesday87%0.0% cancelled
- Thursday76%0.3% cancelled
- Friday74%0.3% cancelled
- Saturday84%1.9% cancelled
- Sunday74%1.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)42%
- Air traffic control & airport congestion29%
- Late-arriving aircraft22%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)50%
- Extreme weather43%
- Air traffic control & airport congestion7%
- Security0%
ATL to SAN: common questions
- How often are ATL to SAN flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Atlanta to San Diego cancelled?
- 0.6% of scheduled flights were cancelled (14 of 2,379).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 45 min behind schedule on average, and 4.2% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAN to ATL — 86% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → SAN, nonstop flights by US airlines that report to the DOT. How we calculate this.