Cheap flights from London to Belfast from €49
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Belfast departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London to Belfast
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
British Airways flights from London to Belfast
Our best British Airways deals on London to Belfast flight tickets
KLM flights from London to Belfast
Our best KLM deals on London to Belfast flight tickets
See travel insights to Belfast from
How to get the cheapest flight ticket from London to Belfast
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 typical price of a round-trip flight between London and Belfast?
What is the cheapest month to fly to Belfast?
The month of January is, on average, the cheapest month to fly to Belfast from London, with most prices found around €49. If you’re not able to fly to Belfast in January, then March is your next best option. Flight prices from London to Belfast during March average around €57.
What is the cheapest day to depart on your flight to Belfast?
The cheapest day to depart from London to Belfast is on a Friday when prices can be found for as low as €0. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Belfast on Tuesday is €130.
What is the cheapest time of day to depart on your flight to Belfast?
In the evening is the cheapest time of day to fly from London to Belfast when you can find flight prices for as low as €0. Flying to Belfast in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of €185.
What is the cheapest London to Belfast flight route?
Fly from London Heathrow to Belfast City for the best London - Belfast flight prices
How far in advance should I book a flight to Belfast?
You are more likely to see cheaper flights to Belfast from London when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around €147 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast from London for as low as €97 on momondo.
What cabin class options are available on London to Belfast flights?
There are 1 cabin classes available to choose from on London to Belfast flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from London to Belfast on average per day?
The number of flights available between London and Belfast is 23 per day as of March 2025. The most frequent departure time is 08:00, with 39% of daily flights leaving in the afternoon.
How many flights depart from London to Belfast on average per week?
The number of flights available between London and Belfast is 167 per week as of March 2025. The most frequent departure day is Fri, with 24% of weekly flights leaving on this day.
Cheap London to Belfast flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Belfast
How far is London to Belfast by plane?
There are 518.2 km between London and Belfast. By plane, this route typically takes 1h 20m.
When did momondo last update prices for flights from London to Belfast?
Prices for flights from London to Belfast are refreshed on a daily basis.
How old do you have to be to fly from London to Belfast?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents required for your trip to Belfast 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 Belfast. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from London to Belfast
Compare and see reviews for airlines that fly from London to Belfast with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €70 | Free Cancellation | Rating 6.9 1,802 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Belfast?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Belfast. momondo saves you time and could save you money on your trip.
Can I find flights from London to Belfast with flexible booking policies on momondo?
Yes. All flights to Belfast from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to Belfast?
momondo provides multiple filters to help you find the best flight to Belfast from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to Belfast right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Belfast from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.