Delhi to London flights

When fares to London are lowest

Fares to London are usually lowest outside the UK summer, the Christmas and New Year period, and the September and January weeks when Indian university terms begin. Use the live fare calendar on this page, which covers 12 months, to see this month's lowest fares for your dates.

Demand on this route is driven by family visits, student travel and work trips, so the quiet weeks are the ones outside those peaks. If your dates are fixed around a term start or a family occasion, book as early as you can and watch the fare rather than guessing.

Set up a fare alert and let the price come to you. Here is how it works:

1. Open the live fare calendar on this page and find your travel month.
2. Note the lowest fares shown for the weeks that suit you.
3. Set your own target fare for those dates.
4. We check fares every day and email you when they fall well under the usual price for your dates or under your own target.
5. Book when the alert arrives, before the quiet week fills up.

Direct flights and airlines on the route

Air India, British Airways and Virgin Atlantic fly nonstop from Delhi to London. Most direct services use Heathrow (LHR), and some routes use other London airports. These three carriers are the simplest choice if you want to avoid a change of plane with family, students or work luggage.

Nonstop is the option most people flying to visit children and family ask for first, because it removes the connection and the risk of a missed onward flight. Check which London airport your ticket names before you arrange a pickup, since Heathrow is the main one but not the only one used.

If you are open to one stop, Qatar Airways via Doha, Etihad via Abu Dhabi, Saudia via Jeddah or Riyadh, and Air Arabia via Sharjah all appear on this route. Some of these are sold as self transfer routes with separate tickets. Separate tickets carry real risk: if the first flight is delayed, the second airline owes you nothing, and you may need to collect bags and check in again. Weigh that against the fare before you book.

Busy weeks on the Delhi to London route

The busiest weeks are the UK summer from June to August, when many parents visit family, Christmas and New Year, and the September and January weeks when Indian university terms start. Fares and seats are tightest then, so plan further ahead if your trip falls in these windows.

Summer is the long school holiday in the UK, which is why so many families travel in both directions. If you are visiting children and grandchildren, June to August is convenient but rarely the lowest fare period.

Christmas and New Year is the second clear peak. Students going home and returning, plus family visits, fill the direct flights first. The September and January term starts matter if you are flying to study or to settle into a new job, so book early and keep an alert running.

Arriving in London: phone, data and entry

UK mobile networks include EE, Vodafone, O2 and Three, with coverage up to 5G. Sort out data before you fly so you can call family on landing, and check the official entry rules for your passport before you travel.

A travel eSIM installed before departure means you land connected, ready for maps, trains and messages. If you prefer a physical SIM, you can also top up a UK number once you arrive. Either way, check that your phone supports eSIM before you buy.

The UK is 5 hours 30 minutes behind India in winter and 4 hours 30 minutes behind in British Summer Time. That shift makes a daytime arrival feel like late evening to your body, so plan a light first day. Entry rules depend on your passport, so read the official rules for your nationality before you fly, and carry your documents in hand luggage.

How to get a price alert for your dates

Set a fare alert for your Delhi to London dates and we check fares every day, emailing you when they fall well under the usual price for your dates or under your own target. It suits family visitors, students and work travellers who cannot watch fares all day.

Pick your dates, or a small range if you are flexible, and choose a target that works for your budget. The alert does the daily checking, so you only act when the fare drops.

Use the 12 month fare calendar alongside the alert to see which months are naturally quieter, then set your target around those weeks. If your trip falls in the UK summer, Christmas or a term start, set the alert early and be ready to book quickly when it fires.