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SDM to LDY: distance & flight time
San Diego (Brown Field Municipal Airport) → Londonderry (City of Derry Airport)
5,105 mi
8,216 km · 4,436 nm
10h 29m
estimated nonstop flight time
+8h
time difference · heading northeast
See live SDM→LDY fares Phone-only fares on this route — call free
Flight time details
5,105 miles nonstop takes roughly 10h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- SDM — Brown Field Municipal Airport · San Diego, United States
- LDY — City of Derry Airport · Londonderry, United Kingdom
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 SDM
Near LDY
- BFS · Belfast International Airport46 mi away
- CFN · Donegal Airport47 mi away
- ENK · St Angelo Airport49 mi away
- ILY · Islay Airport57 mi away
Frequently asked questions
How far is SDM from LDY?
The flight distance from San Diego (SDM) to Londonderry (LDY) is 5,105 miles (8,216 km, 4,436 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDM to LDY?
A nonstop flight takes about 10h 29m 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 San Diego and Londonderry?
Londonderry is 8 hours ahead of San Diego.
What is the cheapest way to fly from SDM to LDY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDM–LDY that never appear on search engines, with no booking fees.