Cheap flights from Belfast to Cardiff

Compare Belfast to Cardiff flight deals

Find the cheapest month or even day of the year to fly to Cardiff

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Flight deals from Belfast to Cardiff Airport

Looking for a cheap last-minute deal or the best return flight from Belfast to Cardiff Airport? If you want to travel next month, return fares start from $193. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Belfast to Cardiff

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Belfast to Cardiff flights are currently cheapest in March.

Direct flights from Belfast to Cardiff

Belfast to Cardiff: Alternative routes

Compare routes from Belfast to Cardiff below. You may find an airport to fly into that's cheaper, faster, or easier than Cardiff.

Belfast to Cardiff: Flight information

The things to know before you go.
Cheapest flight found$90
Cheapest month to flyMarch
Average flight time1 hr, 19 mins
Most popular airlineAer Lingus
Average flights per week15

Finding cheap flights from Belfast to Cardiff: Frequently asked questions

The best price we found for a return flight from Belfast to Cardiff is $179. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 19 minutes is the average flight time from Belfast to Cardiff.
Aer Lingus and British Airways fly direct from Belfast to Cardiff.
As of March 2026, there are 30 flights per week flying from Belfast to Cardiff.
The cheapest month to fly from Belfast to Cardiff is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Cardiff Airport on Thursday, 26 March 2026.
Yes – the average flight time is 1 hour and 19 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cardiff but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cardiff is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Cardiff is Aer Lingus .

Travelling from Belfast to Cardiff Airport (CWL): What you need to know

  • Belfast's main airport is George Best Belfast City Airport (BHD). Check out your departure options from this terminal when searching for your flights from Belfast to Cardiff Airport (CWL).

  • Cardiff (where Cardiff Airport is located) and Belfast share the UTC+0 timezone. You'll have no time difference to factor in for your trip.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your flight from Belfast to CWL.

  • Show up at the airport even earlier during popular months like September. Aim for two hours before a domestic departure and up to four hours for international journeys. After checking in, you can use any extra time to relax or go over your itinerary.

Airports in Belfast

Belfast International Airport (BFS)

  • Located around 19 kilometres from the centre of Belfast, BFS can be reached in about 25 minutes by car (depending on traffic). The journey on public transport is roughly 45 minutes.

  • Catching an early flight from Belfast to Cardiff Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by picking one of these stays near Belfast International Airport:

  • Belfast International Airport gets high marks for its on-time performance. 82% of flights that depart BFS arrive at their destination without delay.

George Best Belfast City Airport (BHD)

  • You can book a direct Belfast to Cardiff Airport (CWL) plane ticket out of George Best Belfast City Airport (BHD). Work out whether departing from BHD makes the most sense for you.

  • From BHD, direct flights from Belfast to CWL are offered by Aer Lingus.

  • Aer Lingus is the go-to airline for bookings on the BHD to CWL route.

  • Aer Lingus is the most punctual carrier flying between George Best Belfast City Airport and Cardiff Airport, with 72.73% of its services arriving as scheduled.

  • With public transport, you can travel from central Belfast to BHD in about 25 minutes. The terminal is roughly 5 kilometres away, and getting there by car will take approximately 15 minutes.

  • Catching the earliest flight? Think about checking in to one of these accommodation options near George Best Belfast City Airport the day before your Belfast to CWL flight:

  • Most flights that depart George Best Belfast City Airport get to their destination as planned. It achieves a consistent on-time performance rate of 80%.

About Cardiff Airport (CWL)

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Belfast to Cardiff Airport. Make yourself comfy at one of these accommodation options near CWL instead:

  • To lock in the lowest price, book your vehicle around four weeks in advance of your Belfast to Cardiff Airport flight.

Getting from Cardiff Airport (CWL) to central Cardiff

  • Central Cardiff is around 19 kilometres from Cardiff Airport and takes about 25 minutes to reach by car. Look into how to get from the airport to the city, whether that's with a taxi, car hire or ride-share.

  • It typically takes 40 minutes when travelling by public transport.

How to find the cheapest flights from Belfast to Cardiff Airport (CWL)

  • $90 is currently the lowest price for a one-way ticket from Belfast to Cardiff Airport. A return flight starts at $179. These fares may change based on availability.

  • Don't leave things to the last moment. You're more likely to walk away with cheap flights from Belfast to CWL if you book ahead. Airlines often have some excellent early bird deals.

  • If you have some flexibility with your travel plans, try using the 'Whole month' search tool. It'll show you the lowest price across the month when searching for your Belfast to Cardiff Airport ticket.

  • There's no need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll let you know the moment a better deal comes up on plane tickets from Belfast to CWL.

  • Lock in a cheap flight from Belfast to Cardiff Airport by using filters. Select your ideal duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Belfast to Cardiff Airport (CWL)

  • It's time to figure out your travel dates for your flight from Belfast to Cardiff Airport (CWL). June is the peak month for travel to Cardiff. If you're all about a more relaxed kind of trip, head there in December.

  • When booking your Belfast to CWL plane ticket, consider the weather you're most comfortable in. July is the warmest month in Cardiff, with temperatures ranging from 11ºC (52ºF) to 22ºC (72ºF).

  • January has temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from Belfast to Cardiff Airport around that time if you want to travel when it's cooler.

More about Cardiff

Explore more of the United Kingdom

  • You've visited Cardiff, now it's time to discover other corners of the United Kingdom. Travel about 225 kilometres east to London to check off its leading attractions. From The British Museum to Westminster Abbey and Big Ben, you've got a jam-packed schedule ahead.

  • Manchester is another standout destination in the United Kingdom and is around 241 kilometres north of Cardiff. No journey is complete without dropping by Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.