About 1 in 4 AA 3666 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (26%); 4.6% were cancelled. The typical flight landed 4 minutes early.
AA 3666: DFW → GGG
Scheduled to leave Dallas at 10:50 p.m. local time, operated by Envoy as MQ 3666. Over the past year it arrived on time 74% of the time (130 flights), in line with other AA flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.
Usually American Airlines's last flight of the day from Dallas to Longview (100% of days). American Airlines's last DFW–GGG flight was cancelled 3.4% of the time, against 2.5% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 12:27 p.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 20 | 85% |
| Tuesday | 17 | — |
| Wednesday | 18 | — |
| Thursday | 17 | — |
| Friday | 20 | 55% |
| Saturday | 18 | — |
| Sunday | 20 | 55% |
Why it was late
All flights DFW → GGG · Connecting off AA 3666? Check the risk
Questions
How often is AA 3666 from DFW to GGG late?
American Airlines 3666 from Dallas/Fort Worth, TX to Longview, TX arrived 15 or more minutes late, was diverted or was cancelled on 26% of 130 scheduled flights between September 2025 and August 2026. 4.6% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.