Question 1

Why should I use momondo to find a flight deal to London?

Accepted Answer

It is quick and easy to find flights to London 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 London that suits you.

Question 2

Can I find flights to London with flexible booking policies on momondo?

Accepted Answer

momondo does allow users to show only those flights to London which offer a flexible booking policy as well as other useful filters and features.

Question 3

How can momondo help me find flights to London?

Accepted Answer

momondo provides multiple filters to help you find the best flight to London. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.

Question 4

I’m not ready to book a flight to London right now. Can momondo alert me if prices change?

Accepted Answer

Of course. momondo tracks the price of London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

Question 5

How far in advance should I book a flight to London?

Accepted Answer

In general, most travellers find the cheapest time to book a flight to London is about 41 days prior to their departure date, when tickets on average are €90. In the past 72 hours, momondo users found flights from Ireland to London for as low as €40.

Question 6

Is there an alternative airport near London?

Accepted Answer

Those flying to London could potentially find better pricing at London City Airport (12 km from London city centre), London Gatwick Airport (38 km from London city centre), London Luton Airport (45 km from London city centre), London Stansted Airport (50 km from London city centre) or London Southend Airport (57 km from London city centre) depending on the month and departure airport.

Question 7

Is there a cheaper alternative to flying into London?

Accepted Answer

London Stansted Airport has an average price of €124 per person and is typically the cheapest airport to fly into when visiting London. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

Question 8

Are there flights to City of London?

Accepted Answer

Yes. To go to City of London, book a flight to London Gatwick which is in London and is about 40.3 km away from City of London.

Question 9

What’s the closest airport to Hyde Park?

Accepted Answer

The closest airport to Hyde Park is 39.0 km away - London’s London Gatwick airport.

Question 10

Which airlines fly to London?

Accepted Answer

Ryanair is the airline most momondo users in Ireland opt for when booking flights to London. British Airways and Aer Lingus are also popular choices when flying to London from Ireland. Most major airlines flying from Ireland to London will offer flights on a regular basis, though your options may vary depending on what airport you fly from.

Question 11

Aer Lingus Flights to London

Accepted Answer

Aer Lingus operates around 71 flights into London in any given week. The most common departure point for these flights was from Dublin, with the best return Aer Lingus deal found being €100 (Dublin to London). Users have rated Aer Lingus 7.3/10 in over 1,854 reviews on momondo.

Question 12

Ryanair Flights to London

Accepted Answer

Ryanair flight deals to London start from €32 - this is the best price found recently on momondo, and was a return journey departing from Dublin. Over any normal week, Ryanair flight prices are typically higher, but vary depending on where you fly from - Dublin is the most popular Ryanair departure point to London so generally has the most availability. Ryanair is scored a 6.9/10 in 5,449 reviews.

Question 13

When did momondo last update prices for flights to London?

Accepted Answer

Prices for flights to London were last updated today.

Question 14

How many operators does momondo search for flights to London?

Accepted Answer

The number of operators available for flights to London is 8 as of October 2026.

Question 15

How old do you have to be to fly to London?

Accepted Answer

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 stopovers. It is recommended that you verify with the airline you are booking with for travel to London.

Question 16

What documentation or ID do you need to fly to London?

Accepted Answer

The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Question 17

What is the cheapest day to depart on your flight to London?

Accepted Answer

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 €221. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to London for around €627.

Question 18

How far in advance should I book a flight to London?

Accepted Answer

You are more likely to see cheaper flights to London from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 London from Ireland for as low as €114 on momondo.

Question 19

What is the absolute cheapest flight to London?

Accepted Answer

Users booking trips to London from Dublin found flights 80% cheaper than the average price of flights to London. To find the cheapest price to London from your area, use momondo’s Airport-to-Airport Pricing Tool.

Question 20

What is the cheapest time of day to depart on your flight to London?

Accepted Answer

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as €156. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around €752.

Question 21

How long does it take to fly to London?

Accepted Answer

Flight times from Ireland to London vary, but if you’re flying out of Dublin and flying into London Heathrow (one of the most popular routes), then the duration is 1h 15m on average. Another popular route from Ireland to London is flying from Cork to London Heathrow, which will take roughly 1h 15m. Keep in mind that layovers or delays could extend your travel time.

Question 22

What is the cheapest month to fly to London?

Accepted Answer

In general, September is the cheapest month to fly from Ireland to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €62. If you are unable to visit London during the month of September, then departing from Ireland during the month January is also very affordable. Most momondo users find prices during this month for around €70.

CHEAPEST MONTH TO FLY TO LONDON FROM DUBLIN	September	31% cheaper	Flying from Dublin to London costs on average just €62 in September
MOST EXPENSIVE MONTH TO FLY TO LONDON FROM DUBLIN	June	34% more expensive	It costs about €121 for flights to London from Dublin in June
MOST POPULAR MONTH TO FLY TO LONDON FROM DUBLIN	July	173% more users visited	More momondo users searched in flights to London from Dublin in July than any other month

Best One-Way Price	€15
Best Round-Trip Price	€21
Fastest flight time	1h 15m
Popular in	June

€15 Cheap flights to London

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to London departing on 4/11. 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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An easier way to manage your London trip

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Popular flights according to clicks in the last 7 days on momondo

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Airports listed have a maximum distance of 57.3 km from London

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