£42 Find Cheap Flights from Cardiff to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Belfast departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Belfast, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£104
Typical prices: £142-£100
Aer Lingus
Fri 4/9Mon 7/9
CWL - BHD • Direct
Cheapest one-way flight
£42
Typical prices: £60-£87
Aer Lingus
Wed 9/9
CWL - BHD • Direct
Direct flights
You can fly direct with Aer Lingus. Average duration is 1h 20m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travellers who book at least 7 weeks in advance save around 12% compared to booking last minute.
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Belfast!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Cardiff to Belfast (CWL-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Belfast

Fri, 4 Sep - Mon, 7 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£104Aer Lingus
Wed, 22 Jul - Sat, 25 Jul
Multiple Airlines Logo
23:15 - 22:20
CWL
-
BFS
23h 05m
2 stops
Multiple Airlines Logo
18:10 - 08:55
BFS
-
CWL
14h 45m
1 stop
£106Multiple Airlines
Wed, 22 Jul - Sat, 25 Jul
Multiple Airlines Logo
23:15 - 22:20
CWL
-
BFS
23h 05m
2 stops
Multiple Airlines Logo
18:10 - 08:55
BFS
-
CWL
14h 45m
1 stop
£106Multiple Airlines
Sun, 12 Jul - Tue, 21 Jul
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£108Aer Lingus
Thu, 6 Aug - Tue, 11 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£109Aer Lingus
Fri, 4 Sep - Mon, 7 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£110Aer Lingus
Thu, 30 Jul - Mon, 3 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£111Aer Lingus
Sun, 19 Jul - Sun, 26 Jul
Multiple Airlines Logo
21:45 - 18:25
CWL
-
BFS
20h 40m
2 stops
Multiple Airlines Logo
22:00 - 21:45
BFS
-
CWL
23h 45m
2 stops
£114Multiple Airlines
Fri, 10 Jul - Fri, 17 Jul
Multiple Airlines Logo
22:45 - 21:15
CWL
-
BFS
22h 30m
2 stops
Multiple Airlines Logo
19:20 - 06:55
BFS
-
CWL
11h 35m
2 stops
£115Multiple Airlines
Thu, 2 Jul - Thu, 9 Jul
Multiple Airlines Logo
16:55 - 07:50
CWL
-
BFS
14h 55m
1 stop
Multiple Airlines Logo
12:45 - 22:25
BFS
-
CWL
9h 40m
2 stops
£115Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Cardiff to Belfast flights

Get data-powered insights and trends into flights from Cardiff to Belfast to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Cardiff to Belfast?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Cardiff to Belfast departing in September.

What is the cheapest Cardiff to Belfast flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Cardiff to Belfast costs £105 on the route between Cardiff (CWL) and Belfast City Airport (BHD). It is also the most popular route.

What’s the cheapest day of the week to fly from Cardiff to Belfast?

The average price of all round-trip flights from Cardiff to Belfast clicked on KAYAK for each day over the last 12 months.

When flying from Cardiff to Belfast, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Cardiff, you’ll find the best rates on Fridays and the most expensive ones on Mondays.

What is the cheapest month to fly from Cardiff to Belfast?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Belfast, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cardiff to Belfast is October, where tickets cost £29 (return) on average. On the other hand, the most expensive months are June and January, where the average cost of round-trip tickets is £96 and £93 respectively.

How far in advance should I book a flight from Cardiff to Belfast?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cardiff to Belfast, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Cardiff to Belfast, you should book around 7 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know - Cheap tickets from Cardiff to Belfast

Cheapest flight£42
Flight from Cardiff to Belfast City Airport

When to book flights from Cardiff to Belfast

Are your dates flexible? Find out the best times to travel from Cardiff to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cardiff to Belfast

  • What is the cheapest flight from Cardiff to Belfast?

    In the last 3 days, the lowest price for a flight from Cardiff to Belfast was £42 for a one-way ticket and £104 for a return.

  • Which airports will I be using when flying from Cardiff to Belfast?

    When flying out of Cardiff you will be using Cardiff Wales. You will be landing at one of these airports: Belfast Intl or Belfast City.

  • Which aircraft models fly most regularly from Cardiff to Belfast?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Cardiff to Belfast?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Belfast.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Belfast?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Cardiff is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Belfast with an airline and back to Cardiff with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Belfast?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Cardiff to Belfast?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Cardiff Wales to Belfast.
Find which airlines fly direct from Cardiff Wales Airport to Belfast, which days they fly and book direct flights.

Direct departures

Cardiff Wales to Belfast

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

Belfast to Cardiff Wales

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Reviews of the top airlines flying from Cardiff to Belfast

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to Belfast? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1598 reviews
7.4Boarding
8.1Crew
7.2Comfort
6.7Food
7.0Entertainment
Airline reviews

Caring & friendly crew. Most important: got us SAFELY to our destination!

8.0 ExcellentTania, May 2026
EDI - DUB
Read more Aer Lingus reviews

Caring & friendly crew. Most important: got us SAFELY to our destination!

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

Whole way through - far more professional and slick than I expected

Good news was that Bag Check was open two and a half hours before the flight, which is essential with the chaotic immigration process. Flight was okay, but sitting at the back of the aircraft, 3 overhead bins on both sides were filled with crew bags and other misc items, so we couldn't put our cabin bags anywhere near us. To add insult, twice the crew managed to drop items that they were taking out of the overhead bins onto my wife's head, who was sitting in an aisle seat.

You need to make signage at Berlin Airport clearer. Having checked in online we had our boarding passes onlour phones. You do not make it clear that you need to check in again to receive a printed luggage tag. You get to baggage drop off and it says you can only do it with a luggage tag BUT not how to get this.

We were bumped despite seats existing on flight While checkin attendants were helpful Easyjet management was not. Only after threats were we allowed on plane at last minute. The online help desk was useless and waste of time (over an hour of useless chats)

It was good except they could offer free water and tea/coffe

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Boarding and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

Everything you need to know for your flight from Cardiff to Belfast

Information on your arrival and departure airports