Cheap flights from Ireland to London 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 Ireland to London departing on 23/7. 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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How to get the cheapest flight ticket from Ireland to London
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 London?
The cheapest month to fly to London from Ireland is in January. Flight prices, which tend to average around £55, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Ireland averaging around £64.
What is the cheapest day to depart on your flight to London?
Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £304. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to London for around £475.
What is the cheapest time of day to depart on your flight to London?
The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £124. Flights in the afternoon are often more expensive, with an average ticket price of £524.
What is the cheapest Ireland to London flight route?
Fly from Milltown (Kerry) Kerry to London Stansted for the best Ireland - London flight prices
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from Ireland when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to London for around £113 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ireland for as low as £70 on momondo.
What cabin class options are available on Ireland to London flights?
There are 3 cabin classes available to choose from on Ireland to London 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 London?
Ryanair, British Airways, and Vueling are the most popular carriers operating from Ireland to London
Which airlines fly to London?
Ryanair, British Airways and Aer Lingus are the top three most popular airlines that fly to London from Ireland according to our data. Ryanair is the first choice among our users, with 47% of people opting to fly with this airline when travelling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ireland to London on average per day?
The number of flights available between Ireland and London is 110 per day as of May 2025. The most frequent departure time is 07:00, with 45% of daily flights leaving at midday.
How many flights depart from Ireland to London on average per week?
As of May 2025, 772 flights take off from Ireland and land in London each week. The most common flight departure day for this route is Wed, with 19% of weekly flights taking off on this day.
Cheap Ireland to London flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to London
When did momondo last update prices for flights from Ireland to London?
Prices for flights from Ireland to London were last updated today.
How many operators does momondo search for flights from Ireland to London?
As of May 2025, there are 3 operators available to choose from for flights from Ireland to London.
How old do you have to be to fly from Ireland to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ireland to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ireland to London is Airbus A320neo (18.43% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (15.66%), Airbus A321neo (14.48%), and Boeing 737 MAX 8 (10.34%).
Best airlines flying from Ireland to London
Compare and see reviews for airlines that fly from Ireland to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £27 | Free Cancellation | Rating 6.8 5,054 reviews | |||
| PriceFrom £58 | Free Cancellation | Rating 6.6 6,842 reviews | |||
| PriceFrom £71 | Free Cancellation | Rating 7.0 1,076 reviews |
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to London?
Finding the right flight to London from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.
Can I find flights from Ireland to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Ireland with this policy.
How can momondo help me find flights from Ireland to London?
Once you have performed a search for Ireland to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Ireland to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ireland to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.