Need help booking?
Unpublished phone-only deals available
DET to LLY: distance & flight time
Detroit (Coleman A. Young Municipal Airport) → Mount Holly (South Jersey Regional Airport)
457 mi
736 km · 397 nm
1h 28m
estimated nonstop flight time
Same time
time difference · heading east
See live DET→LLY fares Phone-only fares on this route — call free
Flight time details
457 miles nonstop takes roughly 1h 28m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- DET — Coleman A. Young Municipal Airport · Detroit, United States
- LLY — South Jersey Regional Airport · Mount Holly, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near DET
- DTW · Detroit Metropolitan Wayne County Airport22 mi away
- YQG · Windsor Airport10 mi away
- MTC · Selfridge Air National Guard Base Airport17 mi away
- PTK · Oakland County International Airport27 mi away
Near LLY
- PHL · Philadelphia International Airport22 mi away
- PNE · Northeast Philadelphia Airport13 mi away
- WRI · Mc Guire Air Force Base14 mi away
- TTN · Trenton Mercer Airport23 mi away
Frequently asked questions
How far is DET from LLY?
The flight distance from Detroit (DET) to Mount Holly (LLY) is 457 miles (736 km, 397 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DET to LLY?
A nonstop flight takes about 1h 28m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from DET to LLY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DET–LLY that never appear on search engines, with no booking fees.