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Heathrow Terminal 3 to London Kings Cross train prices and times

Looking to travel from Heathrow Terminal 3 to London Kings Cross? You can buy train tickets with Trip.com for as low as £15.80, with average prices for this route around £15.80.

To get the best deals, we' d recommend buying in advance and researching alternatives such as split tickets.

  • Sat, Sep 13
  • Sun, Sep 14
  • Mon, Sep 15
  • Tue, Sep 16
  • Wed, Sep 17
  • Thu, Sep 18
  • Fri, Sep 19
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DepartsArrivesOperator
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06:51
57m, Direct
Heathrow Terminals 2 & 3
07:48
London Kings Cross
Elizabeth line
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07:06
56m, Direct
Heathrow Terminals 2 & 3
08:02
London Kings Cross
Elizabeth line
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07:21
57m, Direct
Heathrow Terminals 2 & 3
08:18
London Kings Cross
Elizabeth line
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07:36
56m, Direct
Heathrow Terminals 2 & 3
08:32
London Kings Cross
Elizabeth line
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07:51
56m, Direct
Heathrow Terminals 2 & 3
08:47
London Kings Cross
Elizabeth line
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08:06
56m, Direct
Heathrow Terminals 2 & 3
09:02
Paris
Elizabeth line
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Heathrow Terminal 3 to London Kings Cross train route details

First train
First train
00:15
Last train
Last train
23:52
Departure station
Departure station
Heathrow Terminal 3
Arrival station
Arrival station
London Kings Cross
Journey time
Journey time
56m
Distance
Distance
15 miles
Price
Price
£15.80*
Train Operators
Train Operators
Elizabeth line, Thameslink

How to book cheap train tickets from Heathrow Terminal 3 to London Kings Cross

Season Tickets for frequent travels

Season Tickets for frequent travels

If you frequently travel between Heathrow Terminal 3 and London Kings Cross, a Season Ticket allows unlimited travel between these stations and is available for various durations, such as weekly, monthly, annually, or flexi. Enjoy the convenience of not having to buy a ticket for each journey, as well as significant savings.
Network Railcard for Southeast England

Network Railcard for Southeast England

By purchasing a Network Railcard for only £30 per year, unlock incredible savings of up to 1/3 on every ticket for your travels within London and the South East. With this Railcard in hand, you can enjoy reduced costs on various ticket types, including Standard or Super Off-Peak Tickets.
Travelling in off-peak train times

Travelling in off-peak train times

Off-Peak train tickets are generally cheaper than peak-time tickets, allowing travel outside morning (06:30-09:30) and evening (16:00-19:00) rush hours on weekdays. If your schedule allows for flexibility, choosing off-peak times for your trip from Heathrow Terminal 3 to London Kings Cross can result in significant cost savings.
Using the Railcard for 1/3 off

Using the Railcard for 1/3 off

With a Railcard, you can save up to 1/3 on most rail fares. There are different types of Railcards available, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard, each catering to specific groups of travellers. You can discover more about Railcards here.
Split Tickets to save an average extra 30%

Split Tickets to save an average extra 30%

Splitting tickets involves buying separate, cheaper tickets for different parts of your journey on the same train instead of just one ticket for the entire trip. For instance, if you're travelling from Heathrow Terminal 3 to London Kings Cross, you might find that purchasing a ticket from A to C, then C to B costs less than a direct ticket. This method is perfectly legal and often doesn’t require leaving your seat.
Book in advance to save an average of 61%

Book in advance to save an average of 61%

Advance Tickets are usually released up to 12 weeks before the travel date and can be significantly cheaper than tickets purchased closer to departure. By planning your trip from Heathrow Terminal 3 to London Kings Cross ahead of time and securing your tickets early, you can save up to 61% on the cost of your travel.
Group travels to save 1/3

Group travels to save 1/3

If you are travelling in a group, be sure to check out group travel discounts. Many train companies offer a ⅓ off standard fares for groups of three to nine people, making travelling from Heathrow Terminal 3 to London Kings Cross more affordable for families, friends, or colleagues planning a trip together.

Heathrow Terminal 3 to London Kings Cross train ticket types

Here are different ticket types available for this route, each with its own benefits and restrictions. Here are the options to consider:

Why Book Train Tickets With Trip.com?

  • Split Tickets

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  • Split Tickets

    Split Tickets

    Save an average of 30% on train fares by splitting your Heathrow Terminal 3 to London Kings Cross journey

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*After comparing the full year of 2023 for Split tickets and full-price tickets on Trip.com, the average savings rate for Split tickets is 30%.