The Heathrow Express does Paddington to Heathrow in about 15 minutes. That’s genuinely quick — but it’s station-to-station and priced per person, which changes the picture for groups and luggage.
Where the Express wins
For a solo business traveller starting near Paddington, in a hurry, with a carry-on, the Heathrow Express is hard to beat — 15 minutes, frequent, and you’re airside fast. If time is the only variable and you’re one person, take the train.
Where the taxi wins
The maths flips with people and bags. The Express charges per head; the taxi is one fixed fare per car. By two or three passengers the car is usually cheaper — and it’s door to terminal, not to Paddington first. Add heavy luggage, an early/late flight, or a start that isn’t right by Paddington, and the fixed car from £39 wins clearly.
The break-even, roughly
| Travellers | Usually cheaper | Why |
|---|---|---|
| 1, light bags, near Paddington | Heathrow Express | Speed, single ticket |
| 2 | Toss-up | Depends on luggage & start point |
| 3–4 | Fixed-fare taxi | One fare beats per-head tickets |
| Any, heavy luggage / odd hours | Fixed-fare taxi | Door to door, 24/7, no changes |
Don't forget the far end
The Express drops you at Heathrow’s station, from which you still reach your terminal. The car drops at your departures hall. For T4 and T5 especially, that saved transfer matters when you’re timing a flight.
FAQs
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