Cheap flights from Dublin to London

September is the cheapest month on this route, and the price calendar shows how the rest of the year compares. Fares rise through the summer school holidays and again around Christmas, when Irish and British families travel in both directions, and half-term weeks are busy too. Midweek flights on Tuesdays and Wednesdays usually cost less than Friday evenings and Sunday nights, which weekenders and commuters fill first. For summer and Christmas dates, book well ahead; in the quieter months, waiting a little often pays.

Ryanair and its UK arm are the low-cost names here, with fares that cover the seat and little else, so extras are priced separately. Aer Lingus, British Airways, BA CityFlyer and Emerald Airlines fly full-service, and their fares usually include more from the start. Norwegian, Norwegian International, Malta Airlines and Mokulele Flight Service also appear in the mix. Which of them flies your date depends on the London airport you pick, so compare the total cost rather than the headline fare.

Your ticket says which London airport you land at, and they are not interchangeable. London City sits closest to the centre, in the Docklands, with the DLR and Tube nearby. Heathrow is west of town and has the quickest rail link plus the Piccadilly line. Gatwick is south, with trains into Victoria and London Bridge. Luton and Stansted are further out and both rely on express trains and coaches. Allow extra time if you land late, and check the last connection before booking an evening arrival.

Currency

GBP (£)

Power sockets

Type G · 230 V

Language

English

Emergency number

112, 999

Calling code

+44

Internet domain

.uk

Population of London

8.8 M (2021)

Time zone

UTC+01 (Europe/London)

Country facts: Wikidata

• Check which London airport your fare uses, since Heathrow, Gatwick, Stansted, Luton and London City each mean a different trip into town.
• Dublin has one departure airport, so confirm your fare leaves from Dublin Airport.
• On a low-cost ticket, price a cabin bag or checked bag into the total before you compare.
• If you connect onward on a separate ticket, leave a long gap, because a delay is not covered.
• Carry a valid passport or accepted identity document for the United Kingdom and check the rules for your nationality.
• Fly in September if you can, and check the price calendar before you fix a summer or Christmas date.