KLM's Economy Comfort offers 4 inches extra legroom, enhancing comfort on long-haul flights.
KLM's 787 Dreamliner reduces fatigue with lower cabin altitude, ideal for long-haul comfort.

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $630 (Booking.com) |
One-way from | $520 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $1,002 |
Good round-trip deal | $687 or less |
Good one-way deal | $680 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Thu 4/9
3:15 pm-7:50 pm
Nonstop9h 35m
Atlanta Hartsfield-Jackson
Mon 4/20
5:45 pm-6:45 am
Nonstop8h 00m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Thu 4/9
4:10 pm-8:35 pm
Nonstop9h 25m
Atlanta Hartsfield-Jackson
Mon 4/20
10:30 pm-11:45 am
Nonstop8h 15m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Thu 4/9
2:10 pm-10:29 am
2 stops25h 19m
Atlanta Hartsfield-Jackson
Mon 4/20
8:15 am-6:55 am
2 stops17h 40m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Sun 3/15
6:15 am-11:59 pm
2 stops21h 44m
Atlanta Hartsfield-Jackson
Wed 4/1
11:06 am-7:20 am
1 stop15h 14m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Mon 5/18
4:10 pm-8:35 pm
Nonstop9h 25m
Atlanta Hartsfield-Jackson
Sun 5/24
10:30 pm-11:45 am
Nonstop8h 15m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Mon 4/6
12:15 pm-9:17 pm
1 stop14h 02m
Atlanta Hartsfield-Jackson
Mon 4/20
3:47 pm-3:20 pm
2 stops18h 33m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Wed 4/1
9:55 am-5:05 pm
1 stop12h 10m
Atlanta Hartsfield-Jackson
Wed 4/8
5:45 pm-6:45 am
Nonstop8h 00m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Thu 5/21
4:10 pm-8:35 pm
Nonstop9h 25m
Atlanta Hartsfield-Jackson
Thu 5/28
10:30 pm-11:45 am
Nonstop8h 15m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Mon 2/2
6:50 am-11:08 pm
3 stops21h 18m
Atlanta Hartsfield-Jackson
Sun 2/8
5:25 am-7:10 am
2 stops20h 45m
LondonAtlanta
LHR - ATL
LHRATL
London Heathrow
Wed 5/27
5:15 pm-8:12 pm
2 stops31h 57m
Atlanta Hartsfield-Jackson
Sat 6/6
3:00 pm-9:00 pm
2 stops25h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Atlanta, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Atlanta (average of $589). Flying from London Heathrow Airport to Atlanta in April is currently the most expensive (average of $664). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Unlike in the evening, when flights are generally more expensive, you can save up to 43% on flights from London Heathrow Airport to Atlanta by exploring options for tickets at noon.
About 11% of weekly flights between London and Atlanta have experienced delays in the past year, with the average delay time being 163 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Virgin Atlantic have had the lowest number of delays on this route, with just 8% of flights being delayed.
Copenhagen (CPH) – chosen by Cheapflights users on 50% of 1-stop itineraries from London Heathrow Airport to Atlanta on Cheapflights.
Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $690.
Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 12h 50m.
Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 05m.
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$83 | Average$959 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$521 | Average$1,205 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$628 | Average$790 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$658 | Average$984 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$665 | Average$1,185 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$678 | Average$1,093 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$679 | Average$979 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$830 | Average$1,108 | FlexibilityNo cancel fee | On-time77% |