Cheap flights from Ireland to the United Kingdom from €15
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to the United Kingdom departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Our best British Airways deals on Ireland to United Kingdom flight tickets
Aer Lingus flights from Ireland to United Kingdom
Our best Aer Lingus deals on Ireland to United Kingdom flight tickets
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Fly from
Fly to
Route
Depart
Return
DublinGlasgow
DUB Dublin - GLA Glasgow Intl
DUBGLA
Dublin
Sat 31/10
06:20-07:20
Nonstop1h 00m
Glasgow Intl
Mon 2/11
22:40-23:40
Nonstop1h 00m
DublinBristol
DUB Dublin - BRS Bristol
DUBBRS
Dublin
Sat 31/10
06:20-07:25
Nonstop1h 05m
Bristol
Sun 1/11
07:20-08:25
Nonstop1h 05m
DublinGlasgow
DUB Dublin - GLA Glasgow Intl
DUBGLA
Dublin
Thu 26/11
08:00-09:00
Nonstop1h 00m
Glasgow Intl
Thu 3/12
18:00-19:00
Nonstop1h 00m
DublinBirmingham
DUB Dublin - BHX Birmingham
DUBBHX
Dublin
Sun 22/11
06:40-07:50
Nonstop1h 10m
Birmingham
Sun 29/11
06:20-07:30
Nonstop1h 10m
DublinBirmingham
DUB Dublin - BHX Birmingham
DUBBHX
Dublin
Fri 6/11
06:40-07:50
Nonstop1h 10m
Birmingham
Sun 8/11
06:20-07:30
Nonstop1h 10m
DublinBirmingham
DUB Dublin - BHX Birmingham
DUBBHX
Dublin
Thu 5/11
06:40-07:50
Nonstop1h 10m
Birmingham
Sun 8/11
06:20-07:30
Nonstop1h 10m
DublinBirmingham
DUB Dublin - BHX Birmingham
DUBBHX
Dublin
Wed 9/12
07:20-08:40
Nonstop1h 20m
Birmingham
Wed 9/12
17:00-18:20
Nonstop1h 20m
DublinManchester
DUB Dublin - MAN Manchester
DUBMAN
Dublin
Wed 9/12
19:10-20:25
Nonstop1h 15m
Manchester
Thu 10/12
20:10-21:15
Nonstop1h 05m
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Sat 14/11
20:40-22:00
Nonstop1h 20m
London Heathrow
Sun 15/11
08:25-09:55
Nonstop1h 30m
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Wed 6/1
10:30-12:00
Nonstop1h 30m
London Heathrow
Wed 27/1
10:40-12:10
Nonstop1h 30m
See travel insights to the United Kingdom from
How to get the cheapest flight ticket from Ireland to United Kingdom
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to United Kingdom?
The month of September is, on average, the cheapest month to fly to United Kingdom from Ireland, with most prices found around €80. The month of April is another great option to travel to United Kingdom, with average flight prices from Ireland averaging around €89.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart on your flight to United Kingdom is on a Friday when prices can be found for as low as €220. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €640.
What is the cheapest time of day to depart on your flight to United Kingdom?
Flying to United Kingdom from Ireland in the evening is the least expensive time of day to depart. momondo users have found prices as low as €156 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to United Kingdom, so prices are often more expensive at around €757 per ticket.
What is the cheapest Ireland to United Kingdom flight route?
Fly from Dublin to London Luton for the best Ireland - United Kingdom flight prices
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around €152 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Ireland for as low as €114 on momondo.
What cabin class options are available on Ireland to United Kingdom flights?
There are 4 cabin classes available to choose from on Ireland to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ireland to United Kingdom?
Ryanair, Aer Lingus, and British Airways are the most popular carriers operating from Ireland to United Kingdom
Which airlines fly to United Kingdom?
Ryanair, Aer Lingus and British Airways are the top three most popular airlines that fly to United Kingdom from Ireland according to our data. Ryanair is the first choice among our users, with 64% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 3 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
How often are flights from Ireland to the United Kingdom delayed?
Historically, on average around 16% of flights between Ireland and United Kingdom have experienced a delay on any given week. The average delay length over the past 12 months has been 99 minutes.
What is the most punctual flight time for Ireland to the United Kingdom flights?
Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.
What day of the week experiences the fewest flight delays on this route?
Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.
Which airline has the best punctuality record on Ireland to the United Kingdom flights?
According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.
How many flights depart from Ireland to United Kingdom on average per day?
137 flights are operational daily from Ireland to United Kingdom as of October 2026. The most popular departure time for this route is 07:00, with 53% of flights per day taking off at midday.
How many flights depart from Ireland to United Kingdom on average per week?
The number of flights available between Ireland and United Kingdom is 959 per week as of October 2026. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.
Cheap Ireland to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to United Kingdom
Frequently asked questions about flying from Ireland to the United Kingdom
When did momondo last update prices for flights from Ireland to United Kingdom?
Prices for flights from Ireland to United Kingdom refresh daily.
How many operators does momondo search for flights from Ireland to United Kingdom?
As of October 2026, there are 3 operators available to choose from for flights from Ireland to United Kingdom.
How old do you have to be to fly from Ireland to United Kingdom?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ireland to United Kingdom?
Based on momondo bookings for flights between Ireland and United Kingdom, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 25.53% of the total bookings. Other popular models include Boeing 737 MAX 8 with 22.29%, ATR 72-201 / 202 with 16.33%, and Airbus A320neo with 10.92%.
Best airlines flying from Ireland to United Kingdom
Compare and see reviews for airlines that fly from Ireland to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €26 | Free Cancellation | Rating 6.9 5,441 reviews | |||
| PriceFrom €56 | Free Cancellation | Rating 7.3 1,826 reviews | |||
| PriceFrom €96 | Free Cancellation | Rating 6.7 8,260 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ireland to United Kingdom?
It is quick and easy to find Ireland to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.
Can I find flights from Ireland to United Kingdom with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to United Kingdom from Ireland with this policy.
How can momondo help me find flights from Ireland to United Kingdom?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Ireland.
I’m not ready to book a flight from Ireland to United Kingdom right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ireland to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.