Harpenden to Heathrow Terminal 3 Trains

Harpenden to Heathrow Terminal 3 trains

Travel from

Search accommodation with Expedia

Trip Overview

The average train between Harpenden and Heathrow Terminal 3 takes 1h 16m and the fastest train takes 1h 14m. The train runs at least 3 times per hour from Harpenden 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 16m
Duration: 44 mi
Distance: £31
Average price: Every 20 minutes
Frequency

Train

best

Take the train from Harpenden to Farringdontrain Bedford - Brighton / ...
Take the train from Farringdon Without to Heathrow Terminals 2 & 3train Elizabeth

1h 20m

£25–52

Harpenden to Heathrow Terminal 3 train times

Trains run every 20 minutes between Harpenden and Heathrow Terminal 3. The earliest departure is at 4:59 AM at night, and the last departure from Harpenden is at 10:22 PM which arrives into Heathrow Terminal 3 at 11:37 PM. All services require a transfer at Farringdon and take an average of 1h 16m. The schedules shown below are for the next available departures.

Departing Tuesday, August 11, 2026

10:22 PM → 11:37 PM
1h 15m • 1 change

Departing Wednesday, August 12, 2026

4:59 AM → 6:22 AM
1h 23m • 1 change
5:17 AM → 6:52 AM
1h 35m • 1 change
5:52 AM → 7:07 AM
1h 15m • 1 change
6:22 AM → 7:37 AM
1h 15m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Harpenden 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.