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From Heathrow Terminal 3 to Milton Keynes, take the fastest train in 1 hour 15 minutes, typically 1 hour 45 minutes. Daily, 65 trains depart from Heathrow Terminal 3, with the first at 00:03 and the last at 23:45. Check real-time updates for train times, delays, and cancellations. TrainPal saves you time, effort, and money.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
12:32 | 1 hour 42 minutes, 1 change | 14:14 | Heathrow Express | Find tickets |
12:36 | 1 hour 42 minutes, 1 change | 14:18 | Elizabeth line | Find tickets |
12:47 | 1 hour 36 minutes, 1 change | 14:23 | Heathrow Express | Find tickets |
13:00 | 1 hour 51 minutes, 1 change | 14:51 | Avanti West Coast | Find tickets |
13:06 | 1 hour 45 minutes, 1 change | 14:51 | Elizabeth line | Find tickets |
Plan your journey from Heathrow Terminal 3 to Milton Keynes with ease. Explore the first and last train times, departure and arrival stations, distance, journey time, and price options to make the most of your trip.
Travelling by train from Heathrow Terminal 3 to Milton Keynes is efficient and offers a scenic and comfortable experience. With frequent departures from Heathrow Terminal 3, you can reach Milton Keynes in just 1 hour 15 minutes, making it one of the fastest and most convenient ways to travel between these two places.

The fastest train journey time from Heathrow Terminal 3 to Milton Keynes is 1 hour 15 minutes . Use our Train Journey Planner to find direct trains, avoid transfers, and compare travel times for each route to see if there are fewer stops to make your journey seamless.
No, there are no direct trains from Heathrow Terminal 3 to Milton Keynes. However, you can still find the best train options using the TrainPal Train Journey Planner. Simply enter your departure and arrival stations to see all available train services and plan your trip

While Heathrow Terminal 3 to Milton Keynes trains are usually on time, delays or disruptions may occur due to weather, strikes, and other factors. Finding a train timetable for your trip from Heathrow Terminal 3 to Milton Keynes is easy with Train Journey Planner. Simply enter your departure and arrival stations to get a detailed schedule of available trains. Input your travel details to discover the best routes, connections, and train times.
Usually, you need to arrive at a station at least 15-20 minutes ahead of time. However, consider the station's size and your familiarity with it. If the station is large and you are not familiar with it, leaving home as early as possible is the best choice. This can reduce your stress and ensure a relaxing journey.
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Transferring between train stations in the UK can be effortless with some planning. If your travel requires a transfer, review your ticket and journey details for specific transfer instructions. Major stations typically feature clear signage and helpful staff. Additionally, TrainPal Train Journey Planner offers comprehensive transfer details.

Get easy and quick access to live updates and notifications via the TrainPal app. If your phone is enabled to receive messages from us, you'll receive notifications about train cancellations on your screen as soon as you pick up your phone
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With Trainpal, managing your travel is simple. We assist with itinerary changes, ticket refunds, and Delay Repay.


Cheaper train tickets for less busy times. Combine with Advance fares for the best deals.
* Prices are dynamic and subject to change. Ticket prices vary based on time of day, route, and class. This pricing does not apply to discounted Split tickets and Railcards.
* By combining Advance Ticket offers with split tickets, you’ll get lower fares when you book at least one week before travel (excluding Anytime fares bought on the day of travel). Availability depends on the specific route and cannot be combined with other promotions.