Is Flying Safer Than Driving? What the Death Data Actually Shows

Picture the departure gate on a grey morning. A woman sits with her boarding pass folded in her hand, reading every news alert about turbulence, gripping the armrest during taxi, flinching at every change in engine note. An hour earlier she drove 40 minutes on a motorway in the rain to get here, checking her phone at a junction, and did not think about it once.

Almost everyone has a version of this. Flying frightens people in a way that driving does not. And yet if you put the two side by side in the death data, it is not close. It is not even the same order of magnitude.

So is flying safer than driving? Yes, by a huge margin. But the size of that margin depends on how you measure it, and the honest answer has a few interesting wrinkles.

The headline numbers

Start with the raw global totals. The World Health Organization estimates that 1.19 million people die on the world's roads every year. Commercial aviation, carrying several billion passengers a year, kills a few hundred people in a typical year, and in some recent years fewer than a hundred.

Measure	Road traffic	Commercial aviation
Deaths per year (worldwide)	~1,190,000	Typically a few hundred; under 100 in the safest years
Deaths per day	~3,260	Less than one on average
Share of all global deaths	~2%	Far below 0.01%
Trips per year	Hundreds of billions	Around 37 to 40 million flights, 4 to 5 billion passengers

On any given day, around 3,260 people are killed on roads. That is the equivalent of more than a dozen full jumbo jets crashing every single day, with no survivors. You can see the road toll ticking in real time alongside every other cause on our live death counter, and on our road injuries page.

Time period	Road deaths (approx.)
Per year	1,190,000
Per month	99,000
Per week	22,900
Per day	3,260
Per hour	136
Per minute	2.3

Aviation needs no such table. Most days, nobody at all dies in a commercial airliner anywhere on earth.

But that is not a fair comparison

The obvious objection is that far more people drive than fly, and they drive far more often. Comparing totals tells you which is the bigger public health problem, not which is safer for you on a given journey. For that you need a rate.

There are three common ways to measure transport risk, and they give somewhat different answers.

Way of measuring	What it tells you	Which comes out safer
Deaths per distance travelled	Risk per mile or kilometre	Flying, by a vast margin
Deaths per journey	Risk each time you set off	Flying, but by a smaller margin
Deaths per hour of travel	Risk for each hour spent travelling	Flying, still clearly

Per mile: not even close

The standard measure is deaths per 100 million passenger miles. In the United States, where the data is among the best in the world, the National Safety Council's long-run figures put the passenger car and light truck death rate at roughly 0.5 to 0.6 deaths per 100 million passenger miles. Scheduled airlines come in at a tiny fraction of that, close to zero in most recent years.

Mode (US, approximate long-run rates)	Deaths per 100 million passenger miles
Motorcycle	~20 to 30
Car and light truck	~0.5 to 0.6
Bus	~0.05 to 0.1
Passenger rail	~0.05 to 0.1
Scheduled airline	~0.003 or lower

On a per-mile basis, driving is something like 100 to 200 times more dangerous than flying on a scheduled airline in a country like the US, and a motorcycle is in a different universe entirely. A single long-haul flight across the Atlantic covers more distance than many people drive in a year, at a fraction of the risk.

Per journey: the gap narrows, but does not close

Per-mile figures flatter aviation a little, because flights are long and most of the risk is concentrated in take-off and landing, not the cruise. A fairer test for a single trip is risk per journey.

IATA, the airline industry body, publishes a "fatality risk" figure. For 2023, which was one of the safest years in aviation history, IATA calculated that a passenger would need to take a flight every day for more than 100,000 years to experience a crash in which everyone on board died. Later years have not been quite as clean, but the figure has stayed in the tens of thousands of years.

Compare that with driving. In Great Britain, where roads are among the safest in the world, around 1,600 people a year are killed on the roads. With billions of car trips a year, the risk per trip is small, but it is still clearly higher than the risk of a single flight, and it is much higher in countries with weaker road safety.

Comparison	Rough answer
Single typical car journey vs single flight (high-income country)	Car journey is riskier
Driving 500 miles vs flying 500 miles	Driving is many times riskier
Short drive to the airport vs the flight itself	The drive is often the riskier part of the day

That last line is the one that surprises people. For many travellers, the most dangerous part of a holiday is the drive to and from the airport.

Why flying got so safe

Commercial aviation was not always this safe. In the early 1970s, airliner crashes killed more than 2,000 people in some years, with far fewer flights than today. The fall since then is one of the great safety stories of the last century.

Period	Typical annual airliner deaths	Air traffic compared with today
Early 1970s	Often over 2,000	A small fraction of today's flights
1990s	Often around 1,000 or more	Roughly half of today's flights
2010s	Usually a few hundred	Close to today's level by the end of the decade
2020s	Usually a few hundred, occasionally under 100	Around 35 to 40 million flights a year

Several things drove that improvement:

• Better aircraft. Jet engines are far more reliable, and modern airliners are designed so a single failure is rarely fatal.
• Crew training and procedures. Simulators, checklists and crew resource management, which teaches pilots to challenge each other's mistakes.
• Technology. Ground proximity warnings, collision avoidance systems, better weather radar.
• Investigation culture. Every crash is investigated in detail, the findings are published, and fixes are applied to every aircraft of that type worldwide.

That last point is the real secret. Aviation learns from every death. Road transport, with over 3,000 deaths a day, cannot investigate each one in the same way.

Why driving is still so dangerous

Road deaths have fallen in most rich countries, but globally they remain one of the leading causes of death for young people. The WHO identifies a handful of risk factors that account for most crashes.

Road risk factor	Effect
Speed	Higher speed means more crashes and far deadlier ones
Drink driving	Sharply raises crash risk even at moderate levels
No seat belt	Wearing one cuts the risk of death for front seat occupants by around half
Distraction (phones)	Raises crash risk several fold
Motorcycles without helmets	Head injuries are the main cause of motorcycle deaths
Poor road design	No separation for pedestrians and cyclists

More than half of the people killed on roads worldwide are pedestrians, cyclists and motorcyclists. Most road deaths happen in low and middle income countries, where roads are crowded with mixed traffic. Our article on how many people die in car accidents every day goes country by country, and road crashes are the top killer of people aged 15 to 29.

Why we fear the wrong thing

If the numbers are so lopsided, why do so many people fear flying and not driving? Psychologists point to a few reasons.

Bias	How it works
Control	We feel safer when we are in control, even when we are not
Dread	Crashes that are sudden, catastrophic and unfamiliar feel worse
Availability	Air crashes make global headlines; car crashes are local news
Clustering	200 deaths in one event feels worse than 200 deaths spread over a week

There is even evidence that fear of flying can kill. After the attacks of 11 September 2001, many Americans switched from flying to driving. The psychologist Gerd Gigerenzer estimated that the extra driving led to around 1,500 additional road deaths in the following year, more than the number of passengers who died on the four aircraft that day.

What about other ways to travel?

Flying and driving are two ends of a spectrum.

Mode	How it compares
Walking	Pedestrians are one of the largest groups of road deaths worldwide
Cycling	Riskier per mile than driving, but cycling adds years through exercise
Motorcycling	By far the most dangerous common way to travel
Bus and coach	One of the safest ways to travel by road
Train	Among the safest ways to travel by land
Commercial flight	The safest way to cover long distances
Small private planes	Far riskier than airlines, closer to motorcycling per hour

The cycling line is worth a moment. Per mile it is riskier than driving, but research consistently finds that the health benefits of regular cycling outweigh the crash risk by a wide margin. We look at that in how much exercise it takes to lower your risk of dying and how many steps a day it takes to live longer.

So, is flying safer than driving?

Yes. On almost any sensible measure, a seat on a commercial airliner is one of the safest places a human being can be. The exceptions are small private aircraft and a handful of airlines with poor safety records, which international regulators track and sometimes ban.

If you want to see the odds of dying from everyday causes, including cars, falls and drowning, laid out side by side, our article on the odds of dying from everyday causes does exactly that. And to see which causes are most likely to affect someone like you, try the risk calculator.

While you were reading this

You have spent about 12 minutes with this article. In that time, around 27 people have been killed on the world's roads: pedestrians, motorcyclists, drivers and passengers. In the same 12 minutes, thousands of commercial flights have taken off and landed, and in all likelihood every one of them arrived safely.

Across all causes, around 1,400 people died worldwide while you were reading. Watch the total climbing on our live death counter, or see the latest running figures on the deaths today page.

Next time the plane hits a bump at 35,000 feet, it might help to remember that the riskiest part of your journey was probably the drive to the airport.

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Data sources: World Health Organization Global Status Report on Road Safety (2023); International Air Transport Association (IATA) Annual Safety Reports; Aviation Safety Network; US National Safety Council Injury Facts; UK Department for Transport reported road casualty statistics; Gigerenzer (2006), Risk Analysis. Figures are rounded and represent long-run approximate rates; aviation death totals vary sharply from year to year. Per-mile rates differ by country and data source. This article is for informational purposes only.