$45 Cheap British Airways flights Dublin (DUB) to London (LHR)

View $45 flight on Thu, Aug 7, 2025Opens in a new window

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$45 Cheap British Airways flights Dublin (DUB) to London (LHR)

Prices were available within the past 7 days and start at $45 for one-way flights and $90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Jan 7 - Sat, Jan 10
DUB
Dublin
LHR
London
$90 Roundtrip, found 4 days ago
$90
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Jan 7 from Dublin to London, returning Sat, Jan 10, priced at $90 found 4 days ago
British Airways
Tue, Nov 4 - Mon, Nov 10
DUB
Dublin
LHR
London
$91 Roundtrip, found 5 days ago
$91
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Nov 4 from Dublin to London, returning Mon, Nov 10, priced at $91 found 5 days ago
British Airways
Tue, Nov 25 - Sat, Nov 29
DUB
Dublin
LHR
London
$92 Roundtrip, found 4 days ago
$92
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Nov 25 from Dublin to London, returning Sat, Nov 29, priced at $92 found 4 days ago
British Airways
Tue, Sep 16 - Wed, Sep 17
DUB
Dublin
LHR
London
$95 Roundtrip, found 1 day ago
$95
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Sep 16 from Dublin to London, returning Wed, Sep 17, priced at $95 found 1 day ago
British Airways
Tue, Sep 16 - Wed, Sep 17
DUB
Dublin
LHR
London
$96 Roundtrip, found 1 day ago
$96
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Sep 16 from Dublin to London, returning Wed, Sep 17, priced at $96 found 1 day ago
British Airways
Thu, Oct 9 - Mon, Oct 13
DUB
Dublin
LHR
London
$96 Roundtrip, found 4 days ago
$96
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Oct 9 from Dublin to London, returning Mon, Oct 13, priced at $96 found 4 days ago
Flights from Dublin (DUB) to London (LHR)
Origin airport
Dublin
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air France, Austrian Airlines, British Airways, Eurowings, Iberia, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United
Popular airline
Aer Lingus
Distance
278 mi
Average flight time
1 hour 22 mins

Frequently asked questions

How much is a British Airways flight from Dublin Airport (DUB) to Heathrow Airport (LHR)?
Apply the "Price (lowest to highest)" filter on Expedia to search for cheap British Airways return flights from $90 from DUB to LHR. Affordable one-way options from $45 are available too.**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 DUB to LHR with British Airways?
Search for one-way or return flights to London in January or February. You could find lower fares with British Airways during these off-season months.
What is the cheapest time to book flights from Dublin Airport (DUB) to Heathrow Airport (LHR) with British Airways?
Start your search for British Airways flights from DUB to LHR about one month before you want to go. The cheapest time to book an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or fare class, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers who book on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does British Airways fly nonstop from Dublin Airport (DUB) to Heathrow Airport (LHR)?
Take off on one of British Airways's 44 direct weekly flights from Dublin Airport (DUB) to Heathrow Airport (LHR). To see your options, enter your origin, dates and destination and hit search. Then select the "Nonstop" and "Airline" filters.
How long does it take to fly from DUB to LHR with British Airways?
From takeoff to arrival, a direct British Airways flight from Dublin Airport (DUB) to Heathrow Airport (LHR) typically takes 1h 26m.
Which day of the week has the most British Airways flights from Dublin Airport (DUB) to Heathrow Airport (LHR)?
British Airways has the most flights from Dublin Airport (DUB) to Heathrow Airport (LHR) on Sunday. With up to 7 daily departures, you'll get the most flexibility on this day.
What is the earliest British Airways flight from DUB to LHR?
The first flight from DUB to LHR with British Airways departs at 8:40AM UTC+0. You'll land at 10:15AM UTC+0. The final British Airways flight of the day takes off at 8:35PM UTC+0 and arrives at 9:55PM UTC+0. With 20% fewer cancellations for early and mid-morning flights, starting your travel day early is often the smartest choice.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does British Airways fly into in London?
When jetting off from Dublin Airport (DUB) to London with British Airways, you're most likely to arrive at Heathrow Airport (LHR). This is the airline's primary hub here. Other nearby airports such as Gatwick Airport (LGW) and Stansted Airport (STN) may offer more affordable fares, so it's a smart idea to check out all your options on Expedia.
What kind of luggage can I take on a British Airways flight from Dublin Airport (DUB) to Heathrow Airport (LHR)?
On a standard economy flight with British Airways from DUB to LHR, you can bring 1 checked-in bag up to 50 lb with dimensions no larger than 29 inches x 15 inches x 16 inches in total. For hand luggage, you're permitted 2 cabin bags weighing up to 50 lb and measuring no more than 19 inches x 9 inches x 17 inches. Size and weight allowances may vary depending on your airfare type and cabin class. To make sure you won't face extra charges at the airport, double-check your British Airways booking or visit the airline's website before loading up your suitcase.
Why fly with British Airways from DUB to LHR?
Heading from DUB to LHR with British Airways means enjoying plenty of perks, such as an excellent in-flight experience and top-tier customer service. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That's on top of the British Airways Executive Club points you can earn with British Airways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does British Airways fly from Dublin Airport (DUB) to Heathrow Airport (LHR)?
You'll likely be on an Airbus A320neo or an Airbus A320 when flying British Airways from Dublin Airport (DUB) to Heathrow Airport (LHR). However, keep in mind that a different plane could be assigned to your route depending on operational reasons.
Can I change or cancel my British Airways flight from Dublin Airport (DUB) to Heathrow Airport (LHR)?
Depending on the type of fare you purchased, a fee is typically charged if you change or cancel your booking more than 24 hours after confirmation. To secure tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when looking for flights. For additional information on changing or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

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