Previously seen trips
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Heathrow Airport (T3) | Watford Junction | No tags | ||||
| Bus | Heathrow Airport (T3) | Watford Junction | No tags | ||||
| Bus | Heathrow Airport (T3) | Watford Junction | No tags | ||||
| Bus | Heathrow Airport (T3) | Watford Junction | No tags | ||||
| Bus | Heathrow Airport (T3) | Watford Junction | No tags |
Compare 2 ways to go from Heathrow to Watford
Among the sustainable travel choices, the carpool stands out as the good way to reach Watford. The journey takes about 30 minutes and with fares starting at just $5, it presents an excellent value for a comfortable ride.
| Average Price | Average Duration | CO₂ emissions | Actions | |
|---|---|---|---|---|
| Average Price$18 - $19 | Average Duration46m | 1kg CO₂e | ||
Carpool | Average Price$5 - $7 | Average Duration30m | 1kg CO₂e |
Compare bus companies
Based on 93 reviews, the company was rated 4.5 stars on Busbud. Travelers were especially satisfied with the seats and the cleanliness but often complained with the wifi. Reading RailAir ticket prices on this trip start at $18
Frequently asked questions about traveling from Heathrow to Watford by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Heathrow to Watford?
The cheapest bus tickets from Heathrow to Watford start from $18. The average price for this route is around $19. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Heathrow to Watford?
The average bus trip duration from Heathrow to Watford is 46m, covering a distance of 14 miles (23 km). The quickest bus can get you there in 35m and is operated by Reading RailAir.
Which bus companies service the Heathrow to Watford route?
Several major train operators operate on this route with 37 trains available per day.
What is the earliest and latest departure time for the bus from Heathrow to Watford?
The earliest bus departs from Heathrow to Watford at 4:40am. And the latest bus departs at 11:45pm.
What are the CO₂ emissions for the bus trip from Heathrow to Watford?
A bus trip from Heathrow to Watford generates an estimated 1 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Heathrow to Watford was searched and found on Jan 11, 2026 with a price of $15To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Heathrow to Watford, as early as possible.
You can expect to pay from $15 to $16 for a bus ticket from Heathrow to Watford based on the last 2 days. You can expect to find the cheapest price for the trip at $15 which is on 2026-01-11.
