Cheap flights from the United Kingdom to Ireland from £21
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Ireland departing on 27/6. 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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British Airways flights from United Kingdom to Ireland
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Aer Lingus flights from United Kingdom to Ireland
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How to get the cheapest flight ticket from United Kingdom to Ireland
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 Ireland?
The month of January is, on average, the cheapest month to fly to Ireland from United Kingdom, with most prices found around £50. If you’re not able to fly to Ireland in January, then September is your next best option. Flight prices from United Kingdom to Ireland during September average around £50.
What is the cheapest day to depart on your flight to Ireland?
The cheapest day to depart on your flight to Ireland is on a Friday when prices can be found for as low as £193. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to Ireland on a Monday will generally be more expensive and average around £518. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Ireland?
In the afternoon is the cheapest time of day to fly from United Kingdom to Ireland when you can find flight prices for as low as £130. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly in the morning, with an average ticket price of £509. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest United Kingdom to Ireland flight route?
Fly from London Luton to Knock Intl for the best United Kingdom - Ireland flight prices
How far in advance should I book a flight to Ireland?
You are more likely to see cheaper flights to Ireland from United Kingdom when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around £117 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from United Kingdom for as low as £87 on momondo.
What cabin class options are available on United Kingdom to Ireland flights?
There are 3 cabin classes available to choose from on United Kingdom to Ireland 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 United Kingdom to Ireland?
Ryanair, Aer Lingus, and British Airways are the most popular carriers operating from United Kingdom to Ireland
Which airlines fly to Ireland?
Ryanair, Aer Lingus and British Airways are the top three most popular airlines that fly to Ireland from United Kingdom according to our data. Ryanair is the first choice among our users, with 76% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 7 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.
How many flights depart from United Kingdom to Ireland on average per day?
130 flights are operational daily from United Kingdom to Ireland as of May 2025. The most popular departure time for this route is 08:00, with 39% of flights per day taking off at midday.
How many flights depart from United Kingdom to Ireland on average per week?
As of May 2025, 910 flights take off from United Kingdom and land in Ireland each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.
Cheap United Kingdom to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Ireland
When did momondo last update prices for flights from United Kingdom to Ireland?
Prices for flights from United Kingdom to Ireland are updated daily.
How many operators does momondo search for flights from United Kingdom to Ireland?
There are 6 operators available for flights from United Kingdom to Ireland as of May 2025.
How old do you have to be to fly from United Kingdom to Ireland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Ireland.
What documentation or ID do you need to fly to Ireland?
The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from United Kingdom to Ireland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from United Kingdom to Ireland is Boeing 737-800 Passenger/BBJ2 (winglets) (25.98% of total bookings). The next most popular plane models are ATR 72-201 / 202 (19.60%), Boeing 737 MAX 8 (17.07%), and Airbus A320-100/200 (8.22%).
Best airlines flying from United Kingdom to Ireland
Compare and see reviews for airlines that fly from United Kingdom to Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £18 | Free Cancellation | Rating 6.2 100 reviews | |||
| PriceFrom £25 | Free Cancellation | Rating 6.8 5,092 reviews | |||
| PriceFrom £44 | Free Cancellation | Rating 7.1 1,104 reviews | |||
| PriceFrom £44 | Free Cancellation | Rating 6.6 6,953 reviews | |||
| PriceFrom £69 | Free Cancellation | Rating 7.8 1,351 reviews | |||
| PriceFrom £142 | Free Cancellation | Rating 8.5 18 reviews | |||
| PriceFrom £186 | Free Cancellation | Rating 7.4 1,456 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from United Kingdom to Ireland?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United Kingdom to Ireland. momondo saves you time and could save you money on your trip.
Can I find flights from United Kingdom to Ireland with flexible booking policies on momondo?
Yes. All flights to Ireland from United Kingdom on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from United Kingdom to Ireland?
momondo provides multiple filters to help you find the best flight to Ireland from United Kingdom. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from United Kingdom to Ireland right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from United Kingdom and alert you when they change.