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 22m and the fastest train takes 1h 2m. 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 22m
Duration: 30 mi
Distance: £34
Average price: Every 20 minutes
Frequency

Subway, train

best

Take the subway from Harrow & Wealdstone station to Paddington stationsubway Bakerloo
Take the train from London Paddington to Heathrow Terminals 2 & 3train London Paddington - Heathrow Terminal 5

1h 4m

£19–50

Watford to Heathrow Terminal 3 train times

Trains run every 20 minutes between Watford and Heathrow Terminal 3. The earliest departure is at 5:13 AM in the morning, and the last departure from Watford is at 11:42 PM which arrives into Heathrow Terminal 3 at 4:53 AM. All services require a transfer at Harrow & Wealdstone and take an average of 1h 22m. The schedules shown below are for the next available departures.

Departing Wednesday, October 21, 2026

6:12 AM → 7:24 AM
1h 12m • 2 changes
6:31 AM → 7:39 AM
1h 8m • 2 changes
6:52 AM → 8:10 AM
1h 18m • 2 changes
7:15 AM → 8:24 AM
1h 9m • 2 changes
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Departing Thursday, October 22, 2026

5:13 AM → 6:39 AM
1h 26m • 2 changes
5:59 AM → 7:09 AM
1h 10m • 2 changes
6:12 AM → 7:24 AM
1h 12m • 2 changes
6:31 AM → 7:39 AM
1h 8m • 2 changes
Show more

Departing Friday, October 23, 2026

5:13 AM → 6:39 AM
1h 26m • 2 changes
5:59 AM → 7:09 AM
1h 10m • 2 changes
6:12 AM → 7:24 AM
1h 12m • 2 changes
6:31 AM → 7:39 AM
1h 8m • 2 changes
Show more

Departing Saturday, October 24, 2026

5:15 AM → 6:39 AM
1h 24m • 2 changes
5:57 AM → 7:09 AM
1h 12m • 2 changes
6:29 AM → 7:39 AM
1h 10m • 2 changes
6:30 AM → 7:54 AM
1h 24m • 2 changes
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Departing Sunday, October 25, 2026

6:48 AM → 8:11 AM
1h 23m • 2 changes
7:22 AM → 8:41 AM
1h 19m • 2 changes
7:51 AM → 9:10 AM
1h 19m • 2 changes
8:19 AM → 9:40 AM
1h 21m • 2 changes
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Departing Monday, October 26, 2026

5:13 AM → 6:39 AM
1h 26m • 2 changes
5:59 AM → 7:09 AM
1h 10m • 2 changes
6:12 AM → 7:24 AM
1h 12m • 2 changes
6:31 AM → 7:39 AM
1h 8m • 2 changes
Show more

Departing Tuesday, October 27, 2026

5:13 AM → 6:39 AM
1h 26m • 2 changes
5:59 AM → 7:09 AM
1h 10m • 2 changes
6:12 AM → 7:24 AM
1h 12m • 2 changes
6:31 AM → 7:39 AM
1h 8m • 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.