The cheapest way in. The Heathrow Express is 25 minutes quicker for £11.40 more, which is not worth it at this party size.
Elizabeth line
Elizabeth · Transport for LondonPickup, hours & luggage
Boards at. Rail stations at Terminals 2 & 3, Terminal 4 and Terminal 5
£14.60 to Paddington, £15.50 further into Zone 1 — Bond Street, Tottenham Court Road, Farringdon, Liverpool Street. Oyster and contactless cost the same; there is no paper single. It counts towards the daily cap, so a same-day return costs the cap, not two singles.
Luggage. Racks at the ends of the carriages; the trains are built for it.
Hours. Terminals 2 & 3, daily, with the first at 05:54 on Sundays. Terminal 5 runs 05:15 to 00:07 and Terminal 4 only 05:30 to 23:47 — Terminal 4 is first to close and last to open every day.