Previously seen journeys
| 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 travel from Heathrow to Watford
Among the sustainable travel choices, the carpool stands out as a good way to reach Watford. The journey takes about 30 minutes and with fares starting at just £4, it presents an excellent value for a comfortable ride.
| Average price | Average duration | CO₂ emissions | Actions | |
|---|---|---|---|---|
| Average price£14 - £14 | Average duration46m | 1kg CO₂e | ||
Carpool | Average price£4 - £5 | Average duration30m | 1kg CO₂e |
Compare bus companies
Frequently asked questions about travelling by bus from Heathrow to Watford
Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.
How much is the bus ticket from Heathrow to Watford?
The cheapest coach tickets from Heathrow to Watford start from £14. The average price for this route is around £14. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus journey from Heathrow to Watford?
The average bus journey time from Heathrow to Watford is 46m, covering a distance of 14 miles. The fastest bus can take you there in 35m and is operated by Reading RailAir.
Which bus companies service the Heathrow to Watford route?
Several major bus companies operate on this route with 38 buses available per day, including services from Reading RailAir, National Express.
What is the earliest and latest departure time for the bus from Heathrow to Watford?
The earliest bus departs from Heathrow to Watford at 04:30. And the latest bus departs at 23:49.
What are the CO₂ emissions for the bus trip from Heathrow to Watford?
A bus journey from Heathrow to Watford produces an estimated 1 kg of CO₂, making it a highly eco-friendly choice and a mode of travel recommended by Busbud.
Which is the best bus company from Heathrow to Watford?
According to Busbud customers, the highest-rated bus company on this route is Reading RailAir, with an average rating of 4.5 out of 5 stars based on 92 reviews.
Which company has the best Wi-Fi from Heathrow to Watford?
Based on Busbud reviews, the bus company National Express has the best Wi-Fi rating with a score of 3.4.
Which bus company offers the most punctual service from Heathrow to Watford?
According to Busbud traveller reviews, the most punctual bus company on this route is Reading RailAir, with a punctuality rating of 4.8 out of 5 stars.
Which bus company has the cleanest buses from Heathrow to Watford?
According to Busbud traveller reviews, the bus company with the cleanest buses on this route is Reading RailAir, with a cleanliness rating of 5.0 out of 5 stars.
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 6 Dec 2025 with a price of £12To 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 £12 to £12 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 £12, which is on 2025-12-07.
