Flag of Dun Laoghaire–Rathdown of Ireland

£51 Cheap British Airways flights from London to Dublin (LHR→DUB)

View £51 flight on Tue, 18 Aug 2026Opens in a new window

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

British Airways flights from London to Dublin (LHR→DUB)

Prices were available within the past 7 days and start at £51 for one-way flights and £85 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, 22 Nov - Tue, 24 Nov
LHR
London
DUB
Dublin
£85 Return, found 1 hour ago
£85
Return
found 1 hour ago
Select British Airways flight, departing Sun, 22 Nov from London to Dublin, returning Tue, 24 Nov, priced at £85 found 1 hour ago
British Airways
Sun, 22 Nov - Tue, 24 Nov
LHR
London
DUB
Dublin
£86 Return, found 1 hour ago
£86
Return
found 1 hour ago
Select British Airways flight, departing Sun, 22 Nov from London to Dublin, returning Tue, 24 Nov, priced at £86 found 1 hour ago
British Airways
Sun, 22 Nov - Wed, 25 Nov
LHR
London
DUB
Dublin
£87 Return, found 1 hour ago
£87
Return
found 1 hour ago
Select British Airways flight, departing Sun, 22 Nov from London to Dublin, returning Wed, 25 Nov, priced at £87 found 1 hour ago
British Airways
Wed, 9 Sept - Sat, 12 Sept
LHR
London
DUB
Dublin
£88 Return, found 1 day ago
£88
Return
found 1 day ago
Select British Airways flight, departing Wed, 9 Sept from London to Dublin, returning Sat, 12 Sept, priced at £88 found 1 day ago
British Airways
Fri, 6 Nov - Tue, 10 Nov
LHR
London
DUB
Dublin
£89 Return, just found
£89
Return
just found
Select British Airways flight, departing Fri, 6 Nov from London to Dublin, returning Tue, 10 Nov, priced at £89 just found
British Airways
Sat, 21 Nov - Tue, 24 Nov
LHR
London
DUB
Dublin
£90 Return, found 1 hour ago
£90
Return
found 1 hour ago
Select British Airways flight, departing Sat, 21 Nov from London to Dublin, returning Tue, 24 Nov, priced at £90 found 1 hour ago

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest and Closest option available. Average driving time to city centre is 14 minutes. Flights from £152
DUB
Dublin Airport
CheapestClosest
Average driving time to city centre14 min
Flights from £152

Frequently asked questions

How much is a British Airways flight from Heathrow Airport (LHR) to Dublin Airport (DUB)?
Grab cheap round-trip British Airways flights from £85 from LHR to DUB by organising your results from "Price (lowest to highest)" on Expedia. Or look for options from £51 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LHR to DUB with British Airways?
Search for return or one-way flights to Dublin in January or February. You could find an affordable fare with British Airways during these off-peak times.
Does British Airways fly nonstop from Heathrow Airport (LHR) to Dublin Airport (DUB)?
British Airways offers direct flights from Heathrow Airport (LHR) to Dublin Airport (DUB), with 44 departures every week. Simply use the "Nonstop" and "Airline" filters while searching on Expedia to see all direct British Airways flights to DUB.
How long does it take to fly from LHR to DUB with British Airways?
From takeoff till landing, a direct British Airways flight from Heathrow Airport (LHR) to Dublin Airport (DUB) takes approximately 1h 24m.
Which day of the week has the most British Airways flights from Heathrow Airport (LHR) to Dublin Airport (DUB)?
Saturday has the most British Airways flights from Heathrow Airport (LHR) to Dublin Airport (DUB). With 8 daily departures, this is the best day to find something that will suit your schedule.
What airports does British Airways fly into in Dublin?
British Airways flights from Heathrow Airport (LHR) to Dublin come in to land at Dublin Airport (DUB). This is the main gateway here.
What kind of luggage can I take on a British Airways flight from Heathrow Airport (LHR) to Dublin Airport (DUB)?
For checked luggage, you can bring 1 checked-in bag weighing up to 23 kg (50 lbs) with dimensions not exceeding 89 centimetres x 41 centimetres x 74 centimetres. You can also bring 1 cabin bag on board when flying standard economy from LHR to DUB with British Airways. This carry-on has to weigh less than 23 kg (50 lbs) and be no larger than 56 centimetres x 23 centimetres x 43 centimetres. Exceeding these restrictions can mean additional charges, so check British Airways's baggage allowance policies before you start packing.
What type of plane does British Airways fly from Heathrow Airport (LHR) to Dublin Airport (DUB)?
British Airways usually flies Airbus A320 planes for flights from Heathrow Airport (LHR) to Dublin Airport (DUB). This airline also operates the Airbus A320neo on this route. Keep in mind that aircraft type can vary due to operational requirements, so the plane you board could be different on your travel date.
Can I change or cancel my British Airways flight from Heathrow Airport (LHR) to Dublin Airport (DUB)?
Changes are generally free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about altering your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to update your itinerary without additional costs, check the "Changes included" or "No cancel fee" filter when organising your trip.

Travel information

Origin airport
Heathrow
Destination airport
Dublin
Airlines serving
Aer Lingus, Air France, British Airways, Eurowings, Iberia, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines
Popular airline
Aer Lingus
Distance
445 km
Average flight time
1 hour 22 mins

Explore a world of travel with Expedia

*Available to Expedia members.