Llanelli to Heathrow Terminal 4 Trains

Llanelli to Heathrow Terminal 4 trains

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Trip Overview

The average train between Llanelli and Heathrow Terminal 4 takes 4h 39m and the fastest train takes 3h 54m. There is a train service every few hours from Llanelli to Heathrow Terminal 4. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

4h 39m
Duration: 217 mi
Distance: £116
Average price: Hourly
Frequency

Train

best

Take the train from Swansea to London Paddingtontrain Swansea - London Paddington / ...

4h 39m

£96–183

Llanelli to Heathrow Terminal 4 train times

Trains run hourly between Llanelli and Heathrow Terminal 4. The earliest departure is at 5:01 AM in the morning, and the last departure from Llanelli is at 11:11 PM which arrives into Heathrow Terminal 4 at 8:12 AM. All services require a transfer at Swansea and take an average of 4h 39m. The schedules shown below are for the next available departures.

Departing Friday, October 16, 2026

12:54 PM → 4:57 PM
4h 2m • 2 changes
1:21 PM → 5:58 PM
4h 36m • 2 changes
2:58 PM → 6:58 PM
4h • 2 changes
3:32 PM → 7:57 PM
4h 25m • 2 changes
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Departing Saturday, October 17, 2026

5:01 AM → 8:57 AM
3h 55m • 2 changes
5:56 AM → 9:57 AM
4h • 2 changes
6:54 AM → 10:57 AM
4h 3m • 2 changes
7:23 AM → 11:27 AM
4h 3m • 2 changes
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Departing Sunday, October 18, 2026

9:59 AM → 1:57 PM
3h 57m • 2 changes
10:58 AM → 2:57 PM
3h 58m • 2 changes
11:53 AM → 3:57 PM
4h 3m • 2 changes
12:56 PM → 4:57 PM
4h 1m • 2 changes
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Departing Monday, October 19, 2026

5:03 AM → 8:57 AM
3h 54m • 2 changes
6:02 AM → 9:57 AM
3h 54m • 2 changes
6:51 AM → 10:57 AM
4h 6m • 2 changes
7:20 AM → 11:27 AM
4h 6m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Llanelli to Heathrow Terminal 4? 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.

Llanelli to Heathrow Terminal 4 trains

Trip Overview

Train

Llanelli to Heathrow Terminal 4 train times

Departing Friday, October 16, 2026

12:54 PM → 4:57 PM

1:21 PM → 5:58 PM

2:58 PM → 6:58 PM

3:32 PM → 7:57 PM

Departing Saturday, October 17, 2026

5:01 AM → 8:57 AM

5:56 AM → 9:57 AM

6:54 AM → 10:57 AM

7:23 AM → 11:27 AM

Departing Sunday, October 18, 2026

9:59 AM → 1:57 PM

10:58 AM → 2:57 PM

11:53 AM → 3:57 PM

12:56 PM → 4:57 PM

Departing Monday, October 19, 2026

5:03 AM → 8:57 AM

6:02 AM → 9:57 AM

6:51 AM → 10:57 AM

7:20 AM → 11:27 AM

Frequently asked questions

What companies run services between Llanelli, Wales and Heathrow Terminal 4, England?

Train from Swansea to London Paddington

Llanelli to Heathrow Terminal 4 trains

Find Transport to Heathrow Terminal 4

Trip Overview

Train

Llanelli to Heathrow Terminal 4 train times

Departing Friday, October 16, 2026

12:54 PM → 4:57 PM

1:21 PM → 5:58 PM

2:58 PM → 6:58 PM

3:32 PM → 7:57 PM

Departing Saturday, October 17, 2026

5:01 AM → 8:57 AM

5:56 AM → 9:57 AM

6:54 AM → 10:57 AM

7:23 AM → 11:27 AM

Departing Sunday, October 18, 2026

9:59 AM → 1:57 PM

10:58 AM → 2:57 PM

11:53 AM → 3:57 PM

12:56 PM → 4:57 PM

Departing Monday, October 19, 2026

5:03 AM → 8:57 AM

6:02 AM → 9:57 AM

6:51 AM → 10:57 AM

7:20 AM → 11:27 AM

Frequently asked questions

What companies run services between Llanelli, Wales and Heathrow Terminal 4, England?

Train from Swansea to London Paddington

Where to next?

Train trips from Llanelli

Train trips to Heathrow Terminal 4

Alternative transport options