The 70-minute coach journey is not your minimum connection time
Heathrow lists a 70-minute direct coach journey on National Express or FlixBus and approximately 75 minutes on The Airline, but you must first leave Heathrow and then complete departure formalities at Gatwick. Gatwick recommends arriving at least two hours before your flight, subject to your airline's own requirements. For a self-transfer, three or four hours between flights may be especially tight. Five or six hours give you more room, but the answer depends on your exact itinerary. There is no universal, guaranteed Heathrow–Gatwick minimum connection time.
Only need airport-to-airport travel time? Compare coach and rail options. Connecting between two flights? Use the self-transfer time calculator to allow for airport formalities.
Is 3, 4, 5 or 6 hours enough between Heathrow and Gatwick?
These are examples for someone arriving at Heathrow and departing from Gatwick, not official minimum connection times. The extra steps are why searching only for “Heathrow to Gatwick transfer time” gives an incomplete answer.
| Gap between flights | Planning assessment | Why |
|---|---|---|
| 3 hours | Very high risk | Passport checks, possible baggage collection, waiting for a coach, 70-minute road journey and Gatwick departure formalities leave little or no margin. |
| 4 hours | Often too tight | Even an on-time flight can leave you short of the time the airline expects at Gatwick. |
| 5 hours | Possible in some scenarios | Could work with a prompt exit and well-timed transport; checked baggage, delays or long coach waits can erase the margin. |
| 6 hours | More workable, not guaranteed | Extra time helps, but airline requirements and disruption still matter. |
| 7+ hours | More contingency | Provides additional buffer without eliminating separate-ticket risks. |
Our qualitative planning assessments, not statistical success rates or promises. Heathrow quotes approximate coach journey times but explicitly advises allowing for border checks, baggage, check-in, waiting and traffic. See Heathrow's published inter-airport transport guidance.
Heathrow to Gatwick connection time calculator
Set the UK local time your plane is expected to land at Heathrow and the Gatwick flight's scheduled departure time. The calculator works backwards from your airline's preferred Gatwick arrival target. Every default duration is illustrative and editable, not a live queue, coach reservation, verified connection or airport-authorised minimum time.
Check your airport-change time budget
Start with realistic values for your bags, the next coach and Gatwick check-in. A later arrival or earlier check-in time changes the answer immediately.
The interval between planned touchdown and second flight departure.
Exit + wait + travel + terminal + check-in allowance + contingency.
Update the fields to see whether your planning assumptions fit the time between flights.
A positive number is not clearance to book separate flights. This calculator does not know passport queues, flight delays, road traffic, live services, check-in deadlines or whether you can lawfully enter the UK. It measures only the assumptions you enter.
At the editable example settings (90 minutes from touchdown to pickup + 30 waiting + 70 travelling + 15 reaching Gatwick departures + 120 before the flight + 30 contingency), the budget adds up to 5 hours 55 minutes. A four-hour connection would be 1 hour 55 minutes shorter than that scenario. Change the numbers to match your flights; that calculation is not a claim that every journey takes 5 hours 55 minutes.
Heathrow to Gatwick: direct coach, train or taxi?
| Transport | Published journey reference | Connection considerations |
|---|---|---|
| National Express direct coach | Approx. 70 min | Usually avoids changing in London; ticket-specific departure, possible waiting and road delays. |
| FlixBus direct coach | Approx. 70 min | Check service dates, exact Heathrow/Gatwick stops and ticket conditions. |
| The Airline direct coach | Approx. 75 min | Check the dated timetable and terminal stop for your journey. |
| Train via Farringdon | About 35 min Elizabeth line to Farringdon + 40 min Thameslink to Gatwick | At least one interchange, waiting for trains and station/terminal walks. No direct train. |
| Via Paddington and Victoria | Several trains or Tube journeys | More changes; best evaluated by the actual timetable, price and baggage you carry. |
| Pre-booked car / taxi | Depends on traffic and pickup | Door to door, but road congestion and driver waiting policies can affect your margin. |
These journey references come from Heathrow's official travel-between-airports guide. They exclude airport processing, waiting, interchanges and the Gatwick departure process. Published journey times are not guaranteed, and no direct train connects the airports.
Direct coach: simplest on paper, but departures matter
The Heathrow–Gatwick direct coach can be convenient because you avoid changing trains in central London. You still need to reach its Heathrow stop and identify which Gatwick terminal it serves. For Heathrow Terminals 2 and 3, National Express uses Heathrow Central Bus Station; other terminals have their own stops. If your arriving flight is late, the next available departure can change your plan. Don't assume the coach runs exactly when you leave baggage reclaim.
Check National Express's date-specific timetable, FlixBus or The Airline. Verify the correct direction (Heathrow → Gatwick), stops, service frequency and booking flexibility.
Train: usually change at Farringdon
The practical rail option Heathrow lists is Elizabeth line to Farringdon, followed by Thameslink to Gatwick Airport. It can make sense when road conditions are poor, but a 35-minute rail leg followed by a 40-minute leg is not a 75-minute airport transfer: you still have to wait, change platforms and get into Gatwick departures. Check railway engineering works, the correct Heathrow station and the onward Thameslink service. The Gatwick rail station is in South Terminal; if you depart from North Terminal, take the free inter-terminal shuttle and allow time to reach security.
Taxi: value for a group, but not automatically faster
A pre-booked car can remove coach waiting and platform changes and may suit families with bags, but it does not eliminate road traffic or late flight issues. Ask for the full vehicle fare, an airport pickup location, whether the driver tracks the flight and the waiting-time policy. Compare the full door-to-door journey, not just the car's advertised drive time.
Self-transfer with separate flight tickets: what changes?
Changing airports means leaving Heathrow's airside transit system. You need to enter the UK where applicable, exit through arrivals and make your way independently to Gatwick. If you have checked baggage, plan to reclaim it at Heathrow and hand it over again at Gatwick unless your airline has explicitly confirmed another arrangement. Even without checked baggage, you must reach Gatwick, pass security and meet the airline's boarding requirements.
Heathrow explains that travellers who have booked flights separately are self-connecting passengers, not passengers following the usual airside purple “Flight Connections” signs. Confirm that your passport, visa or immigration status allows you to enter the UK to make the transfer. This is particularly important for international arrivals; requirements vary by nationality, residence and travel purpose.
At Gatwick, check the terminal on your boarding pass and the airline's bag-drop and check-in closing times. Gatwick generally recommends reaching the airport at least two hours before departure, but its check-in areas and individual airline procedures differ. A second flight's departure time is later than the deadline to complete check-in, and the boarding gate can close before the departure time.
If your first flight arrives late and you miss a separately booked Gatwick departure, the second airline may not be obliged to rebook you without charge. A protected connecting itinerary or a travel insurance policy can have different terms. Never assume a missed connection is automatically covered.
How to decide whether your Heathrow–Gatwick connection is too short
- Check UK entry requirements before you travel. An airport-to-airport transfer is not the same as staying airside on one booking.
- Use the actual arriving Heathrow terminal. Terminal 5 pickup can differ from a coach leaving Heathrow Central Bus Station.
- Include your bags and immigration. Arriving with carry-on only may save time, but passport queues are still uncertain.
- Search dated coach or rail departures. Don't plan around a quoted 70-minute trip if the next coach won't leave for 45 minutes.
- Check Gatwick North or South Terminal. The rail station is at South; the terminal shuttle adds another step for North departures.
- Work backwards from the airline's requirements. The latest acceptable bag-drop time and required arrival allowance matter more than the second flight's gate departure alone.
- Budget for disruption. Even a technically possible connection may be a poor choice if missing the second flight is expensive.
Before booking the second flight: quick checklist
- Is it one protected itinerary or two separately purchased tickets?
- Do you have the documents and permission required to enter the UK?
- Which terminal will you arrive at in Heathrow and depart from at Gatwick?
- Will you collect checked baggage at Heathrow and recheck it at Gatwick?
- Have you checked your airline's check-in, bag drop, security and boarding deadlines?
- Does your exact coach/train run on your travel date and call at the correct stop?
- How will you handle a 60–90 minute first-flight delay or heavy road traffic?
Plan the Heathrow arrivals portion first
Estimate when you'll leave passport control and baggage reclaim, then use the connection calculator above to decide whether your Gatwick flight leaves enough time.
Related guides
If an inbound flight delay has already changed your plans, read what to do if you miss your airport transfer. For travellers going into the city rather than connecting at Gatwick, see Heathrow to London and Gatwick to London. Those pages compare journeys to London; this guide focuses only on the Heathrow to Gatwick flight-connection risk.
Frequently asked questions about Heathrow to Gatwick connections
Is 3 hours enough to transfer from Heathrow to Gatwick?
Three hours is generally a very high-risk self-transfer window: immigration, baggage reclaim, waiting for transport, the inter-airport journey, and Gatwick check-in/security must all fit. This is not an airport-approved minimum connection time; calculate your own steps and airline cutoff.
Is 4 hours enough between Heathrow and Gatwick?
Four hours may be too tight, especially with checked baggage or separate tickets. A direct coach's published 70-minute journey excludes time leaving Heathrow, waiting for transport and processing at Gatwick. Use the calculator and check the real timetable.
Is 5 or 6 hours enough for Heathrow to Gatwick?
A five- or six-hour gap can be more practical than three or four hours, but there is no universal guarantee. Your inbound delays, passport clearance, baggage, coach departure and airline check-in deadlines determine whether it works.
Is there a direct train from Heathrow to Gatwick?
No. Heathrow's official guide says there is no direct rail service between the two airports. Common rail routes require changing in central London, such as the Elizabeth line to Farringdon followed by Thameslink to Gatwick.
How long does the Heathrow to Gatwick coach take?
Heathrow quotes about 70 minutes on direct National Express or FlixBus coach services and about 75 minutes on The Airline. These are approximate transport times, not total flight-to-flight connection times.
Do I have to collect my baggage between Heathrow and Gatwick?
If you are changing airports, plan on passing through arrivals and collecting checked bags at Heathrow, then checking in again at Gatwick unless your airline confirms an alternative arrangement. Airport changes are not an airside connection.
What if I land at Heathrow Terminal 5 and fly from Gatwick North Terminal?
Account for reaching the correct Heathrow Terminal 5 pickup point and reaching Gatwick North Terminal after the coach or car journey. Check the coach stops on your specific ticket. Gatwick's train station is at South Terminal, connected to North by a free shuttle.
What happens if the Heathrow flight is delayed and I miss my Gatwick flight?
If the flights were booked separately, rebooking protection is not automatic. Contact the departing airline immediately, review your tickets, travel insurance and any package or connecting-itinerary terms, and keep delay and transport receipts.
Official sources and notes
Reviewed 13 October 2026. The quoted coach/train figures are operator reference times; the calculator and 3–7-hour examples are Terminal2City planning scenarios, not Heathrow/Gatwick minimum connection standards. Timetables, road conditions, immigration procedures and airline rules can change, so always verify the trip and booking terms.