Cheap Flights from Atlanta (ATL) to London (LHR)

Compare Atlanta Hartsfield-Jackson to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Atlanta Hartsfield-Jackson to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Atlanta Hartsfield-Jackson to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Atlanta Hartsfield-Jackson to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Atlanta Hartsfield-Jackson to London Heathrow flights are currently cheapest in March.

Direct flights from Atlanta Hartsfield-Jackson to London Heathrow

Atlanta to London: Flight information

The things to know before you go.
Cheapest flight found$823
Cheapest month to flyMarch
Average flight time8 hrs, 11 mins
Most popular airlineKLM
Average flights per week271

Finding cheap flights from Atlanta Hartsfield-Jackson to London Heathrow: Frequently asked questions

The best price we found for a return flight from Atlanta Hartsfield-Jackson to London Heathrow is $823. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours and 11 minutes is the average flight time from Atlanta Hartsfield-Jackson to London Heathrow.
KLM, Virgin Atlantic and Delta fly direct from Atlanta Hartsfield-Jackson to London Heathrow.
As of February 2026, there are 271 flights per week flying from Atlanta Hartsfield-Jackson to London Heathrow.
The cheapest month to fly from Atlanta Hartsfield-Jackson to London Heathrow is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Atlanta Hartsfield-Jackson Airport to London Heathrow Airport on Sunday, 15 March 2026.
Yes – the average flight time is 8 hours and 11 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Scandinavian Airlines and British Airways offer the cheapest flight tickets to London Heathrow.

Travelling from Hartsfield-Jackson Atlanta International Airport (ATL) to London Heathrow Airport (LHR): what you need to know

  • Around 8 hours 10 minutes is how long you'll be travelling on a direct flight from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport.

  • London is four hours ahead of Atlanta and follows the UTC+0 timezone.

  • Choose from 47 weekly Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport flights. The 00:59 departure with Delta Air Lines is the earliest available. Delta Air Lines operates the last service of the day at 23:59.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Make sure you're at the airport on time to catch your ATL to LHR flight.

  • During popular months such as July, you'll want to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead of an international flight when you fly during peak periods in general.

  • You'll find a range of airlines operating direct flights from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport. When you're ready to kick off your London holiday, let one of these carriers take you to this popular corner of United Kingdom:

  • British Airways is the airline most travellers choose for this route.

  • The carrier with the top on-time arrival performance for ATL to LHR flights is Delta Air Lines.

  • If you want to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport. These are the top stopovers between ATL and LHR:

    • Baltimore/Wash International Thurgood Marshall Airport

    • Washington Dulles International Airport

    • Pittsburgh International Airport

How to find the cheapest flights from Hartsfield-Jackson Atlanta International Airport (ATL) to London Heathrow Airport (LHR)

  • $372 is the lowest price for a one-way Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport flight. A return flight starts at $823. These prices can change based on demand.

  • To secure cheap tickets from ATL to LHR, book your journey ten months ahead of your planned departure.

  • Organise your trip for September. That's the cheapest month for flights from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the cheapest price across every month.

  • Spend less time searching for cheap flights from ATL to LHR by creating a Price Alert. You'll get an email or notification through the app when a special offer becomes available.

  • Tailor your trip with filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport.

Handy information about Hartsfield-Jackson Atlanta International Airport (ATL)

  • You'll find ATL at 6000 N Terminal Parkway.

  • 76.64% of flights departing from Hartsfield-Jackson Atlanta International Airport make it to their destination on time.

  • Central Atlanta to Hartsfield-Jackson Atlanta International Airport is approximately 18 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Taking public transport? Expect a journey time of around 1 hour 10 minutes.

  • Looking for a convenient hotel near ATL? If you're catching an early flight from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport, these accommodation options will have you moments from your departure lounge:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is approximately 31 kilometres from central London. Driving there takes about 55 minutes.

  • If you're travelling on public transport, expect a journey of around 1 hour.

When to fly to London Heathrow Airport (LHR)

  • July is the most popular month for flights from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport. To escape the crowds, go to London in February.

  • Before locking in your flight from Hartsfield-Jackson Atlanta International Airport to London Heathrow Airport, think about the kind of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • January sees average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from ATL to LHR around that time if you'd rather travel in cooler conditions.

Explore more of United Kingdom

  • You've visited London, now it's time to discover more of United Kingdom. Journey around 161 kilometres north-west to Birmingham to tick off its leading attractions. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you'll have a packed itinerary ahead.

  • If you're eager to discover another great destination in United Kingdom, consider Bristol, about 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.