Flight time from Atlanta to London
A nonstop flight from Atlanta (ATL) to London (LHR) takes about 8 h 30 min. Flying back from London to Atlanta takes about 9 h 40 min. The two airports are 4,201 miles (6,761 km) apart.
| Route | Typical nonstop time | Leave 9:00 AM, land (local time) |
|---|---|---|
| ATL → LHR | 8h 30m | Atlanta → 10:30 PM |
| LHR → ATL | 9h 40m | London → 1:40 PM |
Example arrival times are for a departure on November 18, 2026. Times are estimates of gate-to-gate block time, from the great-circle distance, typical jet cruising speeds, average upper-level winds and about 45 minutes for taxi, take-off, climb and landing. They are not airline schedules, and we don't track which airlines fly this route nonstop. Real flights vary by aircraft, routing, season and the day's wind; check your airline for the exact time.
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Time difference
London is 5 hours ahead of Atlanta right now. Allow for it when you plan: the clock at your destination may show a very different time from the hours you spent in the air. See the time now in Atlanta and London, or compare them in the time zone converter.
The Atlanta to London flight is usually quicker than London to Atlanta. High-altitude winds, led by the jet stream, mostly blow from west to east, so planes heading east ride a tailwind and planes heading west fight a headwind. On busy routes the difference shows up in airline timetables every day.
Questions people ask
How long is the flight from Atlanta to London?
A nonstop flight from Atlanta (ATL) to London (LHR) takes about 8 h 30 min, gate to gate. The return flight takes about 9 h 40 min.
How far is London from Atlanta?
4,201 miles (6,761 km) along the great-circle route, the shortest path over the Earth between ATL and LHR airports.
What is the time difference between Atlanta and London?
London is 5 hours ahead of Atlanta right now. The difference can change by an hour during the year when one city changes its clocks for daylight saving time and the other does not.
If I leave Atlanta at 9 a.m., when do I arrive in London?
Leaving Atlanta at 9:00 AM on November 18, 2026, you would land in London at about 10:30 PM local time.
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Last updated October 21, 2026. Airport locations: OurAirports via airportsdata; time zones: IANA time zone database 2026.