Finding cheap flights to Vietnam often comes down to matching your travel plans with the right arrival point and a little flexibility. Fares can vary substantially between UK departure airports, so it is worth searching from London as well as airports such as Manchester, Birmingham and Edinburgh, while adding rail fares, parking and overnight stays to the overall cost. A slightly less convenient departure may not be cheaper once the full journey is included.

Vietnam’s climate varies from north to south, and demand rises around periods such as Tet, Christmas, Easter and UK school holidays. If your dates are flexible, searching across a wider range can reveal better-value combinations, particularly outside the busiest travel periods. Checking nearby dates rather than focusing on a single departure day also helps when comparing return fares.

The best destination to search depends on your itinerary. Hanoi and Ho Chi Minh City may be useful starting points for exploring different regions, while Da Nang, Nha Trang, Dalat, Haiphong, Phu Quoc and Con Dao could reduce backtracking when they fit your plans. Compare the complete cost carefully: a lower fare to one airport may involve an additional domestic flight, baggage charges or a long transfer. Separate tickets can also require generous connection time, especially if you need to collect and recheck luggage.

When comparing flights to Vietnam from the UK, consider the complete journey rather than focusing only on the first departure time. London and regional UK airports may offer different combinations of connections, so compare the time and cost of reaching the airport, baggage arrangements, connection length and whether the itinerary is booked as one journey. A slightly less convenient departure can still be worthwhile if it avoids a difficult connection or a long wait between flights.

Your preferred Vietnamese arrival point should match your plans. Hanoi and Haiphong suit travellers heading towards northern Vietnam, while Ho Chi Minh City is a practical choice for the south. Da Nang provides a useful arrival area for central Vietnam, whereas Nha Trang and Dalat may be more suitable if those destinations are the main focus. For Phu Quoc or Con Dao, check the final flight carefully, as island itineraries can involve an additional connection and a separate transfer from the arrival airport.

When comparing options, check the Vietnamese airport named on the booking, not just the city marketed by the fare. Allow for the time needed to collect baggage and make a domestic connection, particularly if separate tickets are involved. It is also worth comparing arrival times, airport transfer arrangements and the cost of continuing by air or road, as the cheapest fare may not provide the simplest route to your final destination.