What each Heathrow terminal changes about your transfer
Heathrow has four active terminals — 2, 3, 4 and 5 — and they are not equally served. Terminals 2 and 3 share one Underground and Elizabeth line station reached on foot from arrivals. Terminal 5 has its own station for both services. Terminal 4 has its own Underground and Elizabeth line station too, but Heathrow Express does not call at Terminal 4 directly: you take the free inter-terminal transfer train from Terminals 2 & 3, which runs every 15 minutes and takes four minutes, according to Heathrow's own transport page. If you land at Terminal 4 and want the fastest fixed-schedule option, factor that transfer into your timing.
Piccadilly line: the cheapest way in
The Piccadilly line stops at all three Heathrow Underground stations (Terminals 2 & 3, Terminal 4, Terminal 5) and reaches central London in about 50 minutes, per Heathrow's own Underground page. It is a normal Tube service, so you pay with contactless, Oyster or a paper ticket rather than booking in advance, and trains run roughly every 10 minutes even off-peak.
Elizabeth line: faster trains, higher fare
The Elizabeth line serves the same three Heathrow terminal groupings (2 & 3, 4, 5) and runs fewer stops into central London than the Piccadilly line, generally making it quicker end to end, though Heathrow's own page does not publish an exact minute figure for the full journey and directs travellers to the TfL journey planner for precise timings. The single fare for a journey to or from Heathrow through Zone 1 rose to GBP 15.50 from the fares announced for 2026, up from GBP 13.90 previously, confirmed on TfL's own newsroom announcement. Trains run roughly every 10 minutes at Terminals 2 & 3 and every 15–30 minutes at Terminals 4 and 5, since the branches split further down the line.
Heathrow Express: the fixed-schedule fast option
Heathrow Express runs non-stop between Heathrow and Paddington, taking 15 minutes from Terminals 2 & 3 and about 20 minutes from Terminal 5, according to Heathrow's own Heathrow Express page. A walk-up single in standard class costs GBP 26, but advance singles booked ahead start from GBP 10, and a same-day return is GBP 30 against GBP 42 for a standard return, all confirmed on the Heathrow Express fares page. Both trains and all Heathrow Express stations are step-free, with staff available throughout operating hours (05:00 to midnight) without needing to pre-book assistance.
Compare the three rail options on cost, speed and reach before deciding.
| Option | Journey time (T2&3 to centre) | Approx. one-way fare |
|---|---|---|
| Piccadilly line | ~50 min | Standard peak Tube fare (Heathrow always peak) |
| Elizabeth line | Faster than Piccadilly, exact time on TfL journey planner | GBP 15.50 |
| Heathrow Express | 15 min to Paddington | GBP 26 walk-up, from GBP 10 advance |
Contactless capping and same-day returns
If you pay by contactless card or an Oyster-linked card, TfL automatically caps what you are charged in a day: GBP 14.90 across zones 1–6 or GBP 8.10 if you stay in Zone 1, both frozen until March 2027 per TfL's fares documentation. Because Heathrow journeys are always charged at the peak rate, a same-day round trip by Piccadilly or Elizabeth line combined with other Tube travel that day is likely to hit the cap rather than cost two separate peak fares.
Taxi and minicab: no fixed fare, more flexibility
Licensed black cabs can be hailed from the rank outside each terminal and are metered, so the fare depends on traffic and time of day rather than a published flat rate; Heathrow does not publish a standard fare because of this variability. Private hire vehicles (minicabs) operating in London must be pre-booked through a licensed operator and cannot be hailed on the street or at the rank — booking through an unlicensed tout in the terminal is both unsafe and normally more expensive than a booked minicab or a metered black cab. For either option, expect luggage space for two to four large cases depending on vehicle size, and confirm the fare or booking price before you get in.
Late arrivals and heavy luggage
If you land after the last scheduled Piccadilly line, Elizabeth line or Heathrow Express train, your options narrow to a taxi, a pre-booked minicab, or waiting for the first morning service; exact last-train times vary by day and are shown on the TfL journey planner and Heathrow Express timetable rather than repeated here, so check them for your specific date. Overnight and last-service planning across all London airports, including Heathrow, is covered in a separate guide dedicated to arriving after the last Tube.
Choosing between the four options
If you are carrying heavy luggage and value predictability over cost, Heathrow Express or a taxi suits you best. If you are travelling light and want the lowest fare, the Piccadilly line does the job in about 50 minutes. The Elizabeth line sits between the two on both price and speed, and is worth it mainly if your final destination is directly on its route (Paddington, Bond Street, Tottenham Court Road, Liverpool Street, Canary Wharf) so you avoid an extra change.
What this guide does not cover
This article covers Heathrow only. For Gatwick, Stansted and Luton, including which London terminus each one reaches and what a low-fare flight really costs once the transfer is added, see the dedicated comparison of London's three secondary airports.