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DUC to LIS: distance & flight time
Duncan (Halliburton Field) → Lisbon (Humberto Delgado Airport (Lisbon Portela Airport))
4,728 mi
7,609 km · 4,108 nm
9h 44m
estimated nonstop flight time
+6h
time difference · heading northeast
See live DUC→LIS fares Phone-only fares on this route — call free
Flight time details
4,728 miles nonstop takes roughly 9h 44m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- DUC — Halliburton Field · Duncan, United States
- LIS — Humberto Delgado Airport (Lisbon Portela Airport) · Lisbon, Portugal
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 DUC
Near LIS
- AVR · Alverca Air Base9 mi away
- CAT · Cascais Airport12 mi away
- QLR · Monte Real Air Base74 mi away
- BYJ · Beja Airport / Airbase81 mi away
Frequently asked questions
How far is DUC from LIS?
The flight distance from Duncan (DUC) to Lisbon (LIS) is 4,728 miles (7,609 km, 4,108 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DUC to LIS?
A nonstop flight takes about 9h 44m 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 time difference between Duncan and Lisbon?
Lisbon is 6 hours ahead of Duncan.
What is the cheapest way to fly from DUC to LIS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DUC–LIS that never appear on search engines, with no booking fees.