Overview
Vietnam's capital rewards travellers who slow down. Hanoi folds more than a thousand years of history into a compact, walkable centre, where lake-side temples, French-colonial villas and the tangled lanes of the Old Quarter sit side by side. It is the usual starting point for a wider trip taking in Halong Bay, Sapa or Hoi An, and demand for cheap flights to Hanoi from the UK stays steady all year. Use the price charts on this page to see how fares move month by month.
Best time to fly to Hanoi
Autumn, from October to November, is the most reliable window: warm days, lower humidity and little rain. Spring, in March and April, is a close second. Winter (December to February) turns cool and often grey, with a persistent fine drizzle known locally as crachin and temperatures around 15-20C. Summer brings real heat, high humidity and monsoon downpours, though the rain usually passes quickly. UK school holidays push prices up, so check the When to book chart above before you fix your dates.
Airlines and routes
Vietnam Airlines operates the only non-stop service from the UK, flying London Heathrow to Hanoi in around 11 to 12 hours. One-stop options are plentiful and often cheaper: Qatar Airways via Doha, Emirates via Dubai and Etihad via Abu Dhabi all connect well, while Singapore Airlines, Cathay Pacific and Thai Airways route through their Asian hubs. From Manchester, Glasgow or Edinburgh you will always connect, usually through the Gulf, for a total journey of roughly 15 to 18 hours including the layover. Weighing the direct flight against a one-stop itinerary is the best way to find flights from London to Hanoi that suit your budget.
Things to do in Hanoi
The centre is best explored on foot, with a coffee stop never far away. These are the highlights most travellers build their days around:
- Hoan Kiem Lake and Ngoc Son Temple: the calm green heart of the city, reached by a scarlet wooden bridge.
- The Old Quarter: 36 ancient streets once each devoted to a single trade, now packed with shops, stalls and street food.
- Ho Chi Minh Mausoleum complex: the solemn resting place of the national leader, beside the Presidential Palace gardens and One Pillar Pagoda.
- Temple of Literature: Vietnam's first university, founded in 1070, a sequence of tranquil courtyards and pavilions.
- Thang Long Water Puppet Theatre: a centuries-old folk art performed over water with live traditional music.
At Noi Bai International Airport (HAN)
Noi Bai lies about 35km north of the Old Quarter, a drive of 40 to 55 minutes depending on traffic. Metered airport taxis and app-based cars such as Grab are the simplest door-to-door choice. The orange express bus number 86 runs between the terminals and Hanoi Railway Station via the city centre for a few pounds, and most hotels will arrange a private transfer if you book ahead. International flights use Terminal 2.
Top tips for finding cheap flights to Hanoi
- Book roughly two to six months ahead for long-haul; last-minute fares to Vietnam rarely drop.
- Fly midweek and avoid the Christmas, Easter and summer peaks - the price charts on this page show the quieter, cheaper weeks.
- Steer clear of Tet, the Vietnamese Lunar New Year in late January or February, when seats sell out and prices climb.
- Keep your dates flexible and compare Vietnam Airlines' direct flight against the one-stop Gulf carriers before booking.
Travel essentials
UK passport holders can currently enter Vietnam without a visa for stays of up to 45 days; longer visits need an e-visa arranged online in advance. Your passport should have at least six months' validity. The currency is the Vietnamese dong (VND); cards work in hotels and larger restaurants, but carry cash for markets, taxis and street food. No vaccinations are required for entry, though the NHS TravelHealthPro website lists recommended jabs, and comprehensive travel insurance is strongly advised.
