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Cheap Flights from Cardiff to Belfast

Compare Cardiff to Belfast flight deals

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

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Flight deals from Cardiff to Belfast

Looking for a cheap last-minute deal or the best round-trip flight from Cardiff Airport to Belfast? If you want to travel next month, round-trip fares start from AED 525. Find the lowest prices on one-way and round-trip tickets right here.
Belfast.AED 226 per passenger.Departing Wed, Sep 9.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Wed, Sep 9, arriving in Belfast City.Price includes taxes and charges.From AED 226, select.
Belfast.AED 233 per passenger.Departing Tue, Jun 23.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departing from Cardiff on Tue, Jun 23, arriving in Belfast International.Price includes taxes and charges.From AED 233, select.
Belfast.AED 242 per passenger.Departing Mon, Aug 10.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Mon, Aug 10, arriving in Belfast City.Price includes taxes and charges.From AED 242, select.
Belfast.AED 242 per passenger.Departing Tue, Oct 6.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Tue, Oct 6, arriving in Belfast City.Price includes taxes and charges.From AED 242, select.
Belfast.AED 242 per passenger.Departing Thu, Jul 30.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Thu, Jul 30, arriving in Belfast City.Price includes taxes and charges.From AED 242, select.
Belfast.AED 262 per passenger.Departing Sat, Feb 13.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Sat, Feb 13, arriving in Belfast City.Price includes taxes and charges.From AED 262, select.
Belfast.AED 265 per passenger.Departing Sat, Jun 6.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Sat, Jun 6, arriving in Belfast City.Price includes taxes and charges.From AED 265, select.
Belfast.AED 267 per passenger.Departing Tue, May 19.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departing from Cardiff on Tue, May 19, arriving in Belfast International.Price includes taxes and charges.From AED 267, select.
Belfast.AED 268 per passenger.Departing Wed, Dec 9.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Wed, Dec 9, arriving in Belfast City.Price includes taxes and charges.From AED 268, select.
Belfast.AED 268 per passenger.Departing Wed, Mar 10.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Wed, Mar 10, arriving in Belfast City.Price includes taxes and charges.From AED 268, select.
Belfast.AED 268 per passenger.Departing Mon, Nov 2.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Mon, Nov 2, arriving in Belfast City.Price includes taxes and charges.From AED 268, select.
Belfast.AED 282 per passenger.Departing Sat, May 30.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Cardiff on Sat, May 30, arriving in Belfast City.Price includes taxes and charges.From AED 282, select.
Belfast.AED 1,213 per passenger.Departing Fri, Apr 23.One-way flight with KLM.Outbound indirect flight with KLM, departing from Cardiff on Fri, Apr 23, arriving in Belfast City.Price includes taxes and charges.From AED 1,213, select.

Find the cheapest month to fly from Cardiff to Belfast

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cardiff to Belfast flights are currently cheapest in September.
May
from AED 267
Jun
from AED 233
Jul
from AED 242
Aug
from AED 242
Sep
from AED 226
Oct
from AED 242
Nov
from AED 268
Dec
from AED 268
Jan
Find prices
Feb
from AED 262
Mar
from AED 268
Apr
from AED 1,213

Direct flights from Cardiff to Belfast

Alternative Cardiff to Belfast routes

Looking for the cheapest, fastest or easiest route from Cardiff to Belfast? You could fly into the following airports instead.

Belfast City

4km from central Belfast
ClosestCheapest
from AED 226
Search flights

Belfast International

20km from central Belfast
from AED 233
Search flights

Cardiff to Belfast: Flight information

The things to know before you go.
Cheapest flight foundAED 226
Cheapest month to flySeptember
Average flight time1 hr, 20 mins
Most popular airlineAer Lingus
Average flights per week15

Finding cheap flights from Cardiff to Belfast: Frequently asked questions

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a round-trip flight from Cardiff to Belfast is AED 504. 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 20 minutes is the average flight time from Cardiff to Belfast.
Aer Lingus and British Airways fly direct from Cardiff to Belfast.
There are 15 flights per week flying from Cardiff to Belfast, as of May 2026.
The cheapest month to fly from Cardiff to Belfast is usually August.
If you're flying from Cardiff Airport, the cheapest airport near Belfast is Belfast City – which is 3.7 km away from the center of Belfast. We've found flights to this airport from AED 504.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cardiff Airport to Belfast on Wednesday, August 5, 2026.
Yes – the average flight time is 1 hour and 20 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 Belfast 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 Belfast is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 10°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
Currently, Aer Lingus offers the cheapest flight tickets to Belfast.

Traveling from Cardiff Airport (CWL) to Belfast: what you need to know

  • Cardiff (the location of Cardiff Airport) and Belfast follow the same timezone — UTC+0.

  • With seven departures a week between the two airports, Cardiff Airport (CWL) to George Best Belfast City Airport (BHD) is the most popular route. Hop on Aer Lingus's 08:55 flight to get your trip from CWL to BHD underway.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. That way, you won't have to rush to board your CWL to Belfast flight.

  • During popular months like June, you'll want to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're traveling during peak periods in general.

  • You can book a direct Cardiff Airport to Belfast ticket. Start your journey at CWL and land at George Best Belfast City Airport (BHD).

  • Be on the lookout for offers from Aer Lingus. This airline operates direct flights from Cardiff Airport to Belfast.

  • Traveling from central Cardiff to CWL takes around 40 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 14 kilometers in 25 minutes or so, depending on traffic conditions.

  • Want a leisurely start to your travels? Stay near CWL. Whether you're catching an early flight from Cardiff Airport to Belfast or don't want departure day to feel hectic, these hotels are all about convenience:

  • 81% of flights departing from Cardiff Airport touch down at their destination according to schedule. With its reliable on-time performance, you're unlikely to experience delays when flying out of CWL.

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

  • AED 226 is currently the lowest price for a one-way Cardiff Airport to Belfast flight. Return plane tickets start at AED 504. These prices may change depending on availability.

  • Book one month before flying. Pricing trends suggest that this is the ideal window for finding cheap flights from CWL to Belfast.

  • The best month for landing cheap Cardiff Airport to Belfast tickets is June. Use the 'Whole month' tool to compare all available prices, then select the dates offering the lowest fares.

  • Picking up a cheap flight from CWL to Belfast couldn't be easier with Price Alerts. All you need to do is set up one of these automatic notifications and we'll get in touch when a better deal is available.

  • Snag an affordable flight from Cardiff Airport to Belfast with the help of our filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) is around 19 kilometers from the center of Belfast. If you're getting a cab or a ride-share, the drive will take roughly 25 minutes.

  • When traveling on public transport, expect a journey time of about 45 minutes.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Cardiff Airport to Belfast. Check in to one of these accommodation options near BFS instead:

  • Secure the lowest price by booking your ride from Belfast International Airport about three weeks in advance of your flight from CWL to Belfast.

George Best Belfast City Airport (BHD)

  • Central Belfast is about 5 kilometers from George Best Belfast City Airport (BHD). Once your flight from Cardiff Airport to Belfast has hit the runway and you've made your way through the terminal, the drive should be around 15 minutes.

  • Public transport will get you there in about 25 minutes.

  • Place the 'Do not disturb' sign on your door and relax at a hotel close to BHD. Here are a few options where you can take a load off after your CWL to Belfast flight:

  • Get exactly what you want. Booking your ride from BHD two weeks in advance often means more savings and a wider range of vehicles.

Best time to go to Belfast

  • September is the most popular month for flights from Cardiff Airport to Belfast. To escape the crowds, plan your trip to Belfast in January.

  • Book a Cardiff Airport to Belfast plane ticket with a departure in July if you're eager to explore the city during its warmest month. Expect temperatures to range from 9ºC (48ºF) to 19ºC (66ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from CWL to Belfast in January when temperatures average between 1ºC (34ºF) and 8ºC (46ºF).

More about Belfast

  • When it comes to searching for somewhere to lay your head, you'll find the best stays in Belfast right here. Explore these options once you've locked in your flight from Cardiff Airport to Belfast:

  • There are so many things to see and do in this city it can be tricky to work out where to begin. Titanic People, Titanic Shipyard and Titanic Belfast are major attractions which should be on every Belfast itinerary.

Explore more of the United Kingdom

  • Manchester is just one of the many cities in the United Kingdom waiting to be explored once you've taken in the sights of Belfast. Around 274 kilometers away to the southeast, its best attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • Around 354 kilometers southeast of Belfast, Birmingham is another essential stop in the United Kingdom. Experience major highlights starting with Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

More travel options

Plan the rest of your trip from Cardiff to Belfast

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