What is the travel distance from Watford to Heathrow?

The distance between Watford and Heathrow is approximately 23 km (14 miles).

Bus Watford to Heathrow from $22 | Refundable Tickets

Next bus departures

Next departures for Watford to Heathrow on November 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	5:04pm	Watford Junction	1h	6:04pm	Heathrow Airport (T3)	Cheapest
Bus	9:13pm	Watford Junction	34m	9:47pm	Heathrow Airport (T2) arrivals	Fastest
Bus	6:04pm	Watford Junction	1h	7:04pm	Heathrow Airport (T3)	No tags
Bus	7:13pm	Watford Junction	51m	8:04pm	Heathrow Airport (T3)	No tags
Bus	8:21pm	Watford Junction	43m	9:04pm	Heathrow Airport (T3)	No tags

Next departures for Watford to Heathrow on November 19
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	4:07am	Watford Junction	38m	4:45am	Heathrow Airport (T3)	Cheapest
Bus	4:07am	Watford Junction	31m	4:38am	Heathrow Airport (T2) arrivals	Fastest
Bus	5:12am	Watford Junction	38m	5:50am	Heathrow Airport (T3)	No tags
Bus	5:53am	Watford Junction	56m	6:49am	Heathrow Airport (T3)	No tags
Bus	6:45am	Watford Junction	1h 4m	7:49am	Heathrow Airport (T3)	No tags

Next departures for Watford to Heathrow on November 20
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	4:07am	Watford Junction	38m	4:45am	Heathrow Airport (T3)	Cheapest
Bus	4:07am	Watford Junction	31m	4:38am	Heathrow Airport (T2) arrivals	Fastest
Bus	5:12am	Watford Junction	38m	5:50am	Heathrow Airport (T3)	No tags
Bus	5:53am	Watford Junction	56m	6:49am	Heathrow Airport (T3)	No tags
Bus	6:45am	Watford Junction	1h 4m	7:49am	Heathrow Airport (T3)	No tags

Last refresh of the prices: Last Thursday at 5:07 PM GMT.

Compare 2 ways to go from Watford to Heathrow

We recommend taking the bus

Among the sustainable travel choices, the bus stands out as a good way to reach Heathrow. The journey takes about 48 minutes, and with fares starting at just $26, it presents an excellent value for a comfortable ride.

38bus per day

48mAverage Duration

23 kmDistance

1kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions	Actions
Bus	Average Price$26 - $26	Average Duration48m	CO₂ emissions 1kg CO₂e
Carpool	Average Price$4 - $4	Average Duration20m	CO₂ emissions 1kg CO₂e

Compare bus companies

Reading RailAir

4.5/592 reviews

Staff4.9

Timeliness4.9

Cleanliness5

Wifi3.2

Based on 92 reviews, the company was rated 4.5 stars on Busbud. Travellers were especially satisfied with the seats and the cleanliness but often complained with the WiFi. Reading RailAir ticket prices on this trip start at $26

Reading RailAir Watford Heathrow recent customer reviews

Awful the driver left early and I was not able to take my journey even though I got there before departure time

Seema S.

September 7, 2024

Megabus UK

3.5/54,273 reviews

Staff4.4

Timeliness3.4

Cleanliness4.4

Wifi2.6

GB Bus Companies: FlixBus, BlaBlaCar Bus, ALSA, Greyhound, Intercape, Trenitalia, Sindbad

Frequently asked questions about travelling from Watford to Heathrow by bus

What is the travel distance from Watford to Heathrow?
The distance between Watford and Heathrow is approximately 23 km (14 miles).

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

11-16

$22

11-17

$22

Today

$22

11-19

$22

11-20

$22

11-21

No data

11-22

No data

11-23

$22

The cheapest trip from Watford to Heathrow was searched and found on Nov 19, 2025 with a price of $22

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Watford to Heathrow, as early as possible.

You can expect to pay from $22 to $22 for a bus ticket from Watford to Heathrow based on the last 2 days. You can expect to find the cheapest price for the trip at $22 which is on 2025-11-19.