Insights

When driving wins and when flying wins

Every trip anyone runs here is priced both ways and kept. This is what 4,319 checks across 871 routes add up to — the distance where flying takes over, what a mile costs each way, and where the close calls are.

Trips checked
4,319

Trips checked

Driving wins
439

Driving wins

Flying wins
411

Flying wins

Toss-ups
21

Toss-ups

Tesla wins: 50%Toss-up: 2%Plane wins: 47%50%Tesla
  • Tesla wins50% · 439
  • Toss-up2% · 21
  • Plane wins47% · 411

The headline finding

Flying starts winning at about 600 miles

The change isn't gradual. Driving wins almost every trip shorter than 400 miles, flying wins almost every trip longer than 800, and the whole argument lives in the narrow band between them — where close calls outnumber clear winners. Measured in 100-mile steps, the first step where the plane wins more than half the trips is about 600 miles. Seats, fuel prices and how long the flight itself is all move it.

Measured in 100-mile steps across 871 routes; 413 of them are 600 miles or longer

If you need to get there, flying starts winning at about 600 miles.

Share of trips the plane wins, by length of the drive
Half the tripsUnder 200 miles83 trips0%200 to 400 miles231 trips0%400 to 600 miles144 trips3%600 to 800 miles98 trips93%800 to 1,200 miles112 trips100%Over 1,200 miles203 trips100%
  • Flying wins
  • Too close to call
  • Driving wins

In a hurry, fly. If you have the time and like the road, most long drives stop being a loss and become a close call.

The two edge cases, in numbers
Edge caseTripDriveBy carBy planeVerdict
Longest drive the car still winsWalker, LA → Knoxville, TN636 mi$130$319Drive
Shortest drive the plane winsVejle, DK → Haugesund, NO429 mi$236$243Fly

Cost per mile

What a mile costs, both ways, by trip length

Short trips are the plane's worst ground: the airfare, the bags and the two rideshares barely shrink, so they land on very few miles. Stretch the trip and flying's cost per mile falls while the car's barely moves.

Single traveller, US dollars, across 871 routes

Under 200 miles · 83 tripsDrive$0.14/miFly$2.24/mi200 to 400 miles · 231 tripsDrive$0.20/miFly$0.93/mi400 to 600 miles · 144 tripsDrive$0.22/miFly$0.59/mi600 to 800 miles · 98 tripsDrive$0.39/miFly$0.44/mi800 to 1,200 miles · 112 tripsDrive$0.36/miFly$0.34/miOver 1,200 miles · 203 tripsDrive$0.39/miFly$0.24/mi
  • Drive
  • Fly
Cost per mile, in numbers
Trip lengthTripsDrive $/miFly $/miPlane wins
Under 200 miles83$0.14$2.240%
200 to 400 miles231$0.20$0.930%
400 to 600 miles144$0.22$0.593%
600 to 800 miles98$0.39$0.4493%
800 to 1,200 miles112$0.36$0.34100%
Over 1,200 miles203$0.39$0.24100%

Stress

The drive stops being the calmer seat around 1,000 miles

Below that, the car scores calmer than the flight on a 0-100 scale — no security queue, no gate, no bag carousel, and the car doing the lane-keeping. Above it, the hours themselves take over.

Average 53% calmer where the car wins

Under 200 miles · 83 tripsDrive10Fly56200 to 400 miles · 231 tripsDrive17Fly56400 to 600 miles · 144 tripsDrive26Fly52600 to 800 miles · 98 tripsDrive41Fly52800 to 1,200 miles · 112 tripsDrive53Fly57Over 1,200 miles · 203 tripsDrive87Fly68
  • Drive
  • Fly
Stress scores, in numbers
Trip lengthDrive stressFly stressCalmer seat
Under 200 miles1056Car
200 to 400 miles1756Car
400 to 600 miles2652Car
600 to 800 miles4152Car
800 to 1,200 miles5357Car
Over 1,200 miles8768Plane

Carbon

The car is the cleaner seat on 868 of 871 routes

Where the car is cleaner it averages 6.1× less CO2e than the same trip by plane, counting the grid mix where the car charges, charging losses, and the extra warming effect of emissions released at altitude.

868 of 871 routes, single traveller

100%

6.1× less CO2e

Average difference where the car is the cleaner seat, counting the grid mix where it charges and the extra warming from emissions released at altitude.

The closest call is Tulsa, OK → Wichita, KS — near enough even that carbon shouldn't decide it. How carbon is worked out →

Charging

How many Supercharger stops a trip actually needs

Stops come from usable range between charges on the real routed distance, not a round number. They are also the main thing that separates the drive's clock from the flight's.

Averaged across 871 routes

Under 200 miles0.3 stops83 trips200 to 400 miles1.7 stops231 trips400 to 600 miles2.7 stops144 trips600 to 800 miles3.9 stops98 trips800 to 1,200 miles5.4 stops112 tripsOver 1,200 miles11.5 stops203 trips
Charging stops, in numbers
Trip lengthTripsAverage stopsDrive stressFly stress
Under 200 miles830.31056
200 to 400 miles2311.71756
400 to 600 miles1442.72652
600 to 800 miles983.94152
800 to 1,200 miles1125.45357
Over 1,200 miles20311.58768

Where the visitors are

The answer changes with the country

Fuel, electricity and airfare are all local. Trips outside the US are priced in their own money and converted only here, at fixed published rates, so the regions can sit in one table.

5 regions represented

United States574 tripsavg 881 miCanada17 tripsavg 945 miUnited Kingdom14 tripsavg 607 miEurope209 tripsavg 815 miElsewhere57 tripsavg 850 mi
  • Driving wins
  • Toss-up
  • Flying wins
Regions, in numbers
RegionTripsDrive winsFly winsAverage drive
United States574325246881 mi
Canada17710945 mi
United Kingdom1485607 mi
Europe20973120815 mi
Elsewhere572630850 mi

The edges

Longest, shortest and closest calls

The far ends of the library, and the trips where the two options land almost on top of each other.

From 871 routes

Money the drive keeps, against miles of driving — one dot per trip
−$1,329−$665$0+$665+$1,329600 mi — the flip01,1002,2003,3004,400Miles of driving
  • Driving wins
  • Flying wins
  • Toss-up
TripDriveBy carBy planeGap
Longest: Seattle, WA → San José, CR4,391 mi$2,017$688$1,329
Shortest: Miami, FL → Miami Beach, FL10 mi$1$244$243
Close call: Lommel, BE → Bern, CH443 mi$97$237$140
Close call: Vienna, AT → Berlin, DE423 mi$94$241$147
Close call: Wien, AT → Berlin, DE422 mi$94$241$147
Close call: Oslo, NO → Lesund, NO358 mi$86$233$147
Close call: Turku, FI → Oulu, FI402 mi$92$241$149
Close call: Antwerp, BE → Berlin, DE448 mi$98$247$149

Cross-border

What a border does to the answer

A border adds a queue to both seats, but it costs the flight more: customs lands on top of an airport that already asks for two hours.

54 cross-border trips — driving wins 15, flying wins 38

TripDriveBy carBy planeVerdict
San Diego, CA → Tijuana, B.C.19 mi$3$246Drive
Seattle, WA → Vancouver, BC143 mi$19$261Drive
Detroit, MI → Toronto, ON233 mi$53$272Drive
Dublin, IE → Belfast, UK103 mi$14$220Drive
Istanbul, TR → Belgrade, RS588 mi$124$326Drive
London, UK → Paris, FR289 mi$74$269Drive
Winnipeg, MB → Minneapolis, MN458 mi$94$280Drive
Ankara, TR → Alexandroupoli, GR466 mi$89$274Drive

The short answers

At what distance does flying beat driving a Tesla?

Across 871 routes compared on Fly or Tesla, measured in 100-mile steps, the first step where the plane wins more than half the trips is about 600 miles of driving; 413 trips in the library are that long or longer. Driving wins almost every trip under 400 miles and flying almost every trip over 800, with the close calls concentrated in between. Every extra seat in the car pushes the tipping point further out.

Is it cheaper to fly or drive a Tesla?

Of 871 routes, driving wins 439, flying wins 411, and 21 are close enough to call a toss-up. Where driving wins, it keeps $207 on average for a single traveller — counting charging, tyres, maintenance, road food and any hotel night the drive forces, against airfare, bags and getting to and from both airports.

What does it cost per mile to drive versus fly?

It falls fast as the trip gets longer. Under 200 miles cost $0.14 a mile to drive against $2.24 to fly, across 83 trips. 200 to 400 miles cost $0.20 a mile to drive against $0.93 to fly, across 231 trips. 400 to 600 miles cost $0.22 a mile to drive against $0.59 to fly, across 144 trips. 600 to 800 miles cost $0.39 a mile to drive against $0.44 to fly, across 98 trips. 800 to 1,200 miles cost $0.36 a mile to drive against $0.34 to fly, across 112 trips. Over 1,200 miles cost $0.39 a mile to drive against $0.24 to fly, across 203 trips.

How many Supercharger stops does a long drive need?

Under 200 miles average 0.3 stops. 200 to 400 miles average 1.7 stops. 400 to 600 miles average 2.7 stops. 600 to 800 miles average 3.9 stops. 800 to 1,200 miles average 5.4 stops. Over 1,200 miles average 11.5 stops. Each figure is based on usable range between charges rather than a rule of thumb.

At what distance does driving become more stressful than flying?

Around 1,000 miles. Below that, the drive scores calmer than the flight on a 0 to 100 scale. Above it, the hours behind the wheel overtake the airport.

Is driving an EV lower carbon than flying?

On 868 of 871 routes the car is the cleaner seat, averaging 6.1× less CO2e than the same trip by plane. That counts the grid mix where the car charges and the contrails on the flight.

Using these numbers

Everything above regenerates from the live trip library and is free to quote with a link back. The same figures are available as JSON, and the method behind them is written up under cost analysis, stress score and emissions. Costs and airfare are estimates, not quotes.