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Cheap flights from Dublin to London Heathrow Airport from $66

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or February, booked 63 days in advance, depart on a Wednesday or Monday and return on a Saturday

Cheap flight deals from Dublin to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Heathrow
Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2026.

Thu 27/813:45
DUB
-
LHR
Nonstop1h 30m
British Airways
Sun 30/808:15
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 25/7$157
Thu 27/813:45
DUB
-
LHR
Nonstop1h 30m
British Airways
Mon 31/818:10
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 27/7$160
Mon 16/1120:40
DUB
-
LHR
Nonstop1h 20m
British Airways
Thu 19/1106:30
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 27/7$162
Sat 7/1120:40
DUB
-
LHR
Nonstop1h 20m
British Airways
Sun 8/1111:15
LHR
-
DUB
Nonstop1h 30m
British Airways
Deal found 27/7$163
Wed 26/810:30
DUB
-
LHR
Nonstop1h 30m
British Airways
Tue 1/906:20
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 27/7$164
Fri 27/1120:35
DUB
-
LHR
Nonstop1h 20m
British Airways
Sun 13/1208:25
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 27/7$166
Sun 23/808:35
DUB
-
LHR
Nonstop1h 35m
British Airways
Wed 26/817:20
LHR
-
DUB
Nonstop1h 30m
British Airways
Deal found 27/7$167
Wed 9/908:35
DUB
-
LHR
Nonstop1h 35m
British Airways
Wed 16/917:20
LHR
-
DUB
Nonstop1h 30m
British Airways
Deal found 27/7$169
Tue 22/920:25
DUB
-
LHR
Nonstop1h 15m
British Airways
Fri 25/916:30
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 26/7$170
Wed 9/920:30
DUB
-
LHR
Nonstop1h 15m
British Airways
Sat 12/917:55
LHR
-
DUB
Nonstop1h 30m
British Airways
Deal found 27/7$172
Tue 8/920:25
DUB
-
LHR
Nonstop1h 15m
British Airways
Wed 9/906:15
LHR
-
DUB
Nonstop1h 25m
British Airways
Deal found 27/7$173
Thu 10/908:35
DUB
-
LHR
Nonstop1h 35m
British Airways
Thu 17/913:05
LHR
-
DUB
Nonstop1h 30m
British Airways
Deal found 27/7$174

Find flight deals from Dublin to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 July 2026.

Round-trip from

$157

One-way from

$66

Popular in

April

Cheapest in

January

Average price

$269

Good one-way deal

$100 or less
British Airways
  • British Airways
  • 27/8-30/8
  • Nonstop
  • 2h 55m total
  • Dublin to London
Search Deals
British Airways
  • British Airways
  • 11/1
  • Nonstop
  • 1h 25m total
  • Dublin to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Dublin to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 28 July 2026.
Use the filters below to find and compare flights from Dublin to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 28/9

20:30-21:45

Nonstop1h 15m

London Heathrow

Wed 30/9

17:20-18:50

Nonstop1h 30m

$169
Fastest return journey

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 26/9

20:15-21:30

Nonstop1h 15m

London Heathrow

Sun 27/9

06:20-07:45

Nonstop1h 25m

$174

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 11/8

15:15-16:45

Nonstop1h 30m

London Heathrow

Sat 29/8

17:55-19:25

Nonstop1h 30m

$176

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 7/9

20:30-21:45

Nonstop1h 15m

London Heathrow

Tue 8/9

06:20-07:45

Nonstop1h 25m

$177

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 10/9

08:35-10:10

Nonstop1h 35m

London Heathrow

Thu 17/9

13:05-14:35

Nonstop1h 30m

$177

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 13/8

10:30-12:00

Nonstop1h 30m

London Heathrow

Mon 17/8

06:20-07:45

Nonstop1h 25m

$179

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 21/8

20:10-21:25

Nonstop1h 15m

London Heathrow

Sun 23/8

06:20-07:45

Nonstop1h 25m

$179

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 18/9

20:10-21:25

Nonstop1h 15m

London Heathrow

Mon 21/9

06:20-07:45

Nonstop1h 25m

$182

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 3/9

13:45-15:15

Nonstop1h 30m

London Heathrow

Tue 8/9

06:20-07:45

Nonstop1h 25m

$190

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 10/8

20:30-21:45

Nonstop1h 15m

London Heathrow

Thu 13/8

11:30-12:55

Nonstop1h 25m

$192

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Dublin to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to London Heathrow Airport

How far ahead should I book a flight from Dublin to London Heathrow Airport?

The price you pay for your flight from Dublin to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Dublin to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of $196). Flying from Dublin to London Heathrow Airport in April is currently the most expensive (average of $274). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DUB to LHR?

Find hourly flight availability from Dublin to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 July 2026.

When flying from Dublin to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 78% versus a flight in the afternoon.

How much does it cost for a return flight from Dublin to London Heathrow Airport?

Airfare is below average for this route at the moment.

Dublin to London Heathrow Airport flights typically cost between $209 and $323 in August.
The cheapest return price found within the last 5 days was $157 on British Airways (27 Aug–30 Aug).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 28 July 2026.
Read reviews from past customers who have flown with British Airways from Dublin to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,129 reviews
Check prices

Boarding

7.0

Comfort

6.8

Crew

7.7

Entertainment

6.5

Food

6.4

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,June 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,129 reviews
British Airways
6.7
Okay
8,129 reviews
Check prices

Boarding

7.0

Comfort

6.8

Crew

7.7

Entertainment

6.5

Food

6.4

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,June 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dublin to London Heathrow?

    Most people fly from Dublin (DUB) if they book a flight from Dublin to London Heathrow. On average, Dublin has 61 outbound flights to London Heathrow per day from 1 airline. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

  • How long is the flight from Dublin to London Heathrow Airport?

    British Airways can get you from Dublin to London Heathrow Airport in just under 1h 15m. Your travel time will be generally consistent. Airlines will cover a distance of 449 km. Most flights are nonstop.

  • What is the cheapest airline to fly from Dublin to London Heathrow Airport round-trip?

    According to our current data, British Airways ($161), offers the cheapest pricing from Dublin to London Heathrow Airport. British Airways is currently priced 33% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Dublin to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Dublin, have a look at the most reliable airlines to get you to your destination on time: Air Canada (76%), Aer Lingus (68%), Qatar Airways( 68%).

  • What are the cheapest flights from Dublin to London Heathrow Airport?

    Looking for the cheapest flight from Dublin to London Heathrow Airport? While on average our users pay $125, our data indicates the cheapest price to be $75. The most popular route (Dublin - London Heathrow), is priced around $93.

  • Can I find deals for flights from Dublin to Heathrow that include hotel bookings?

    Yes. In addition to deals on Dublin to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Heathrow.

  • Can I find deals for business class flights from Dublin to Heathrow?

    Yes. Cheapflights offers flight deals from Dublin to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of $196). Flying from Dublin to London Heathrow Airport in April is currently the most expensive (average of $274). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Kingston upon Thames
Salisbury
St. Albans
Luton
Horsham
Dover
Aylesbury
Guildford
Stansted
Braintree
Brentford
Gatwick
Chertsey
Twickenham
Orpington
Teddington

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Dublin to Heathrow

Discover the top airline that operate flights from Dublin to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 28 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$161Average$221FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Heathrow?

Cheapflights makes it easy to find Dublin to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Dublin to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Dublin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dublin to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Dublin to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Dublin to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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