Flight DL1138
Delta Air Lines flight DL1138
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Alerts at this flight's airports
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
Boston (BOS) to Minneapolis (MSP)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 79 minutes. It was cancelled 1.7% of the time.
- On-time arrivals
- 91.2%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 173
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Air traffic control & airport 27%
- Extreme weather 13%
- Late-arriving aircraft 11%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Minneapolis (MSP)
Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 119 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 68.6%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 119 min
- Flights arriving 15+ minutes late
- Flights tracked
- 107
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 42%
- Air traffic control & airport 10%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Diego (SAN) to New York (JFK)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 321 minutes. It was cancelled 5.7% of the time.
- On-time arrivals
- 87.9%
- Less than 15 minutes late
- Cancelled
- 5.7%
- Of scheduled flights
- Average delay when late
- 321 min
- Flights arriving 15+ minutes late
- Flights tracked
- 35
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 49%
- Airline (crew, maintenance, cleaning) 46%
- Late-arriving aircraft 5%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (JFK) to Chicago (ORD)
Only 9 flights on record, which is too few for reliable odds.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 344 min
- Flights arriving 15+ minutes late
- Flights tracked
- 9
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 98%
- Air traffic control & airport 2%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 76.7% | 30 |
| October 2025 | 72.4% | 30 |
| November 2025 | 66.7% | 28 |
| December 2025 | 58.1% | 31 |
| January 2026 | 86.4% | 23 |
| February 2026 | 84.2% | 20 |
| March 2026 | 84.0% | 26 |
| April 2026 | 100.0% | 26 |
| May 2026 | 100.0% | 30 |
| June 2026 | 85.2% | 27 |
| July 2026 | 88.0% | 27 |
| August 2026 | 96.2% | 26 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data