Flights Detroit → San Juan
DTW → SJU
How long is the flight from Detroit to San Juan?
The flight from Detroit (DTW) to San Juan (SJU) takes about 4h 19m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
Route overview
The flight route from Detroit to San Juan operates with high punctuality, boasting a 94% on-time performance rate and an average arrival one minute early. Over the course of a year, this route sees eighty-nine flights using Airbus A320 aircraft, serving the busy destination airport which handles over ten million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Detroit (DTW) → San Juan (SJU) route is operated by Delta Air Lines. Across 215 flights monitored in recent months, 87% arrived on time (within 15 min of schedule), with an average delay of 4 minutes. The cancellation rate is 0.47%. FlightGuard's average computed risk is 7/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At San Juan the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Detroit the average ATFM delay is 5.5 minutes.
Heading to San Juan: what to expect in this direction
Flying from Detroit (DTW) to San Juan (SJU) heads south-east for about 3,111 km, a flight time of roughly 4h 19m.
Departures from Detroit on this leg cluster in the overnight window: about 100% of DTW-SJU flights take off then.
Air-traffic congestion: departing Detroit the average ATFM delay is 5.5 min (atfm); arriving into San Juan it is 2.0 min (atfm).
Across 215 tracked DTW-SJU flights, 87% left on time with an average delay of 4 min and a 0.5% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Delta Air Lines (DL) | 85% | 1 min | 0.8% |
Airlines operating DTW-SJU
Airports
Frequently asked questions about DTW-SJU
The flight from Detroit (DTW) to San Juan (SJU) takes about 4h 19m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
On the Detroit (DTW) -> San Juan (SJU) route, on-time performance is 87% with an average delay of 4 minutes, based on 215 tracked flights.
The cancellation rate on Detroit-San Juan is 0.47% across 215 monitored flights.
The route is operated by 1 airline: Delta Air Lines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at San Juan, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
