Watford to Heathrow Terminal 3 Trains

Watford to Heathrow Terminal 3 trains

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Trip Overview

The average train between Watford and Heathrow Terminal 3 takes 1h 21m and the fastest train takes 1h 6m. The train runs at least 3 times per hour from Watford to Heathrow Terminal 3. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

1h 21m
Duration: 30 mi
Distance: £39
Average price: Every 20 minutes
Frequency

Train

best

Take the train from Watford High Street to Queens Park (London)train Watford Junction - London Euston / ...
Take the train from London Paddington to Heathrow Terminals 2 & 3train London Paddington - Heathrow Terminal 5

1h 8m

£25–56

Watford to Heathrow Terminal 3 train times

Trains run every 20 minutes between Watford and Heathrow Terminal 3. The earliest departure is at 5:16 AM in the morning, and the last departure from Watford is at 11:33 PM which arrives into Heathrow Terminal 3 at 4:53 AM. All services require a transfer at Queens Park (London) and take an average of 1h 21m. The schedules shown below are for the next available departures.

Departing Wednesday, October 28, 2026

2:48 PM → 4:09 PM
1h 21m • 2 changes
3:18 PM → 4:24 PM
1h 6m • 2 changes
3:48 PM → 4:54 PM
1h 6m • 2 changes
4:18 PM → 5:24 PM
1h 6m • 2 changes
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Departing Thursday, October 29, 2026

5:16 AM → 6:39 AM
1h 23m • 2 changes
5:32 AM → 6:55 AM
1h 23m • 2 changes
5:48 AM → 7:09 AM
1h 21m • 2 changes
6:18 AM → 7:24 AM
1h 6m • 2 changes
Show more

Departing Friday, October 30, 2026

5:16 AM → 6:39 AM
1h 23m • 2 changes
5:32 AM → 6:55 AM
1h 23m • 2 changes
5:48 AM → 7:09 AM
1h 21m • 2 changes
6:18 AM → 7:24 AM
1h 6m • 2 changes
Show more

Departing Saturday, October 31, 2026

5:18 AM → 6:39 AM
1h 21m • 2 changes
5:48 AM → 7:09 AM
1h 21m • 2 changes
6:18 AM → 7:39 AM
1h 21m • 2 changes
6:33 AM → 7:54 AM
1h 21m • 2 changes
Show more

Departing Sunday, November 1, 2026

6:51 AM → 8:05 AM
1h 14m • 2 changes
7:18 AM → 8:41 AM
1h 23m • 2 changes
7:48 AM → 9:10 AM
1h 22m • 2 changes
8:18 AM → 9:40 AM
1h 22m • 2 changes
Show more

Departing Monday, November 2, 2026

5:16 AM → 6:39 AM
1h 23m • 2 changes
5:32 AM → 6:55 AM
1h 23m • 2 changes
5:48 AM → 7:09 AM
1h 21m • 2 changes
6:18 AM → 7:24 AM
1h 6m • 2 changes
Show more

Departing Tuesday, November 3, 2026

5:16 AM → 6:39 AM
1h 23m • 2 changes
5:32 AM → 6:55 AM
1h 23m • 2 changes
5:48 AM → 7:09 AM
1h 21m • 2 changes
6:18 AM → 7:24 AM
1h 6m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Watford to Heathrow Terminal 3? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.