Statistics on London-Cardiff flights: what is the right price and when to buy your plane ticket?
Best time to go: what is the RIGHT price for a round-trip flight to Cardiff (from: London)
The average price to go to Cardiff from London airport is $ 226 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 193 (in september) and $ 251 (in august), which is a saving of $ 33 or a surplus of $ 25 (compared to the average price) depending on the period you leave.
The analysis of all prices reveals that the most frequent price is between $163 to $217 and it is generally more economical to leave on a wednesday and return on a monday on a flight with 1 or more layovers.
Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Cardiff before booking your flight.
If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your London-Cardiff plane ticket.
How are these data calculated?
We have studied a sample of 33825 airfare prices from previous years for flights to Cardiff from London and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.
Average price depending on the departure month
Data analysis:
By leaving in september, the price of the plane ticket will statistically be the cheapest ($ 193, saving $ 33 compared to the average price over the year which is $ 226). Conversely, august will be the most expensive ($ 251).
Flight London-Cardiff: when is the best time to go for the best price?
| Month | Good price* | Average price | Our opinion |
|---|---|---|---|
| January | $ 132 | $ 200 | fair price |
| February | $ 175 | $ 240 | fair price |
| March | $ 184 | $ 222 | fair price |
| April | $ 191 | $ 236 | fair price |
| May | $ 173 | $ 231 | fair price |
| June | $ 179 | $ 239 | fair price |
| July | $ 178 | $ 242 | fair price |
| August | $ 175 | $ 251 the most expensive | very high price |
| September | $ 142 | $ 193 the cheapest | very good price |
| October | $ 134 | $ 203 | fair price |
| November | $ 134 | $ 193 | good price |
| December | $ 166 | $ 249 | high price |
*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!
Price breakdown to travel from London to Cardiff
Data analysis:
The prices for flights from London to Cardiff range from $0 to $542. 1% of tickets were purchased at the minimum price (from $0 to $55), 1% at the maximum price (from $488 to $542). The majority of plane tickets were purchased in the range of $163 to $217 (23% of tickets).
Cheapest airlines for the London->Cardiff flight
There are 9 companies that serve London from Cardiff airport: Ryanair, EasyJet, British Airways, KLM, Aer Lingus, Vueling Airlines, Wizz Air, Wizz Air Uk and Flybe.
Data analysis:
Of the 33825 flights analyzed in previous years, Ryanair was the airline that offered the best fare most often in the flight ticket search results (53% of the time) on the London->Cardiff route.
Which day of the week to leave?
Data analysis:
Statistically, London-Cardiff flights departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday as your departure date, you can save an average of $15. On the other hand, departing on a saturday may cost you an additional $16.
Which day of the week to come back?
Data analysis:
Statistically, return flights from Cardiff to London departing on a monday are cheaper than on other days of the week. By choosing a monday for your return date, you will save an average of $23. Conversely, departing from Cardiff on a thursday may cost you an additional $27.
Top prices London-Cardiff
| Round trip | Dates | Price | |
|---|---|---|---|
| London → Cardiff | 01-04 to 08-04-2025 | $ 132 | layover flight with Ryanair |
| London → Cardiff | 08-04 to 15-04-2025 | $ 127 | layover flight with Ryanair |
| London → Cardiff | 09-04 to 15-04-2025 | $ 151 | layover flight with Ryanair |
| London → Cardiff | 22-04 to 26-04-2025 | $ 151 | layover flight with Ryanair |
| London → Cardiff | 24-04 to 28-04-2025 | $ 139 | layover flight with Ryanair |
| London → Cardiff | 01-05 to 08-05-2025 | $ 153 | layover flight with Ryanair |
| London → Cardiff | 13-05 to 18-05-2025 | $ 152 | layover flight with Ryanair |
| London → Cardiff | 03-06 to 10-06-2025 | $ 129 | layover flight with Ryanair |
| London → Cardiff | 04-06 to 12-06-2025 | $ 141 | layover flight with Ryanair |
| London → Cardiff | 14-06 to 18-06-2025 | $ 125 | layover flight with Ryanair |
When to book your flight London - Cardiff to get the cheapest price?
Statistically, you will make the biggest savings by buying your plane ticket between 1 to 2 months in advance. However, you may end up paying a high price if you book between 11 to 12 months in advance.
Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a London-Cardiff flight, it is recommended to book your ticket on a monday.
How far in advance should I buy my flight?
Data analysis:
To get the cheapest flight ticket from London to Cardiff, it is recommended to buy it 1 to 2 months before departure (it is then on average 202 $, which is a saving of 24 $ compared to the overall average price). On the other hand, if you buy your ticket 11 to 12 months in advance, you will pay the full price (128 $ more than the average price).
Depending on the departure month
The best time to buy your London to Cardiff flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.
| Departure on... | How far in advance should I book? |
|---|---|
| January | Best time: 2 to 3 months before departure (average price: 148 $) Other interesting period(s): 1 to 2 months ($ 165), 4 to 5 months ($ 192) |
| February | Best time: 2 to 3 months before departure (average price: 192 $) Other interesting period(s): 1 to 2 months ($ 202), 3 to 4 months ($ 200), 4 to 5 months ($ 192), 5 to 6 months ($ 224) |
| March | Best time: 3 to 4 months before departure (average price: 203 $) Other interesting period(s): 1 to 2 months ($ 206), 2 to 3 months ($ 206), 4 to 5 months ($ 209), 5 to 6 months ($ 207) |
| April | Best time: 5 to 6 months before departure (average price: 206 $) Other interesting period(s): 1 to 2 months ($ 232), 2 to 3 months ($ 219), 3 to 4 months ($ 218), 4 to 5 months ($ 220) |
| May | Best time: 6 to 7 months before departure (average price: 203 $) Other interesting period(s): 1 to 2 months ($ 209), 2 to 3 months ($ 224), 7 to 8 months ($ 228) |
| June | Best time: 7 to 8 months before departure (average price: 207 $) Other interesting period(s): 0 to 1 month ($ 239), 1 to 2 months ($ 237), 3 to 4 months ($ 229), 4 to 5 months ($ 232), 5 to 6 months ($ 237), 8 to 9 months ($ 238), 9 to 10 months ($ 238) |
| July | Best time: 1 to 2 months before departure (average price: 215 $) Other interesting period(s): 0 to 1 month ($ 241), 3 to 4 months ($ 237), 5 to 6 months ($ 240), 7 to 8 months ($ 232), 8 to 9 months ($ 226) |
| August | Best time: 1 to 2 months before departure (average price: 217 $) Other interesting period(s): 0 to 1 month ($ 238), 8 to 9 months ($ 249) |
| September | Best time: 1 to 2 months before departure (average price: 172 $) Other interesting period(s): 0 to 1 month ($ 184) |
| October | Best time: 1 to 2 months before departure (average price: 164 $) Other interesting period(s): 0 to 1 month ($ 199), 2 to 3 months ($ 188) |
| November | Best time: 2 to 3 months before departure (average price: 163 $) Other interesting period(s): 0 to 1 month ($ 192), 1 to 2 months ($ 164) |
| December | Best time: 2 to 3 months before departure (average price: 226 $) Other interesting period(s): 1 to 2 months ($ 236) |
What day of the week should I book my flight ticket?
Data analysis:
Statistically, monday is the day when plane tickets for London->Cardiff are the cheapest. So, by buying your plane ticket on a monday, you will save $4. Conversely, by buying it on a tuesday, you may end up paying $5 more.
London to Cardiff: flight price when booking today
Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.
| Month | Current price | Our opinion | |
|---|---|---|---|
| April 2025 | $ 226 $127 to $406 | very good price | Find a flight |
| May 2025 | $ 171 $141 to $210 | very good price | Find a flight |
| June 2025 | $ 167 $125 to $232 | very good price | Find a flight |
| July 2025 | $ 238 $127 to $341 | very good price | Find a flight |
| August 2025 | $ 187 $129 to $222 | very good price | Find a flight |
| September 2025 | $ 207 $168 to $261 | high price | Find a flight |
| October 2025 | $ 255 $166 to $312 | very high price | Find a flight |
| December 2025 | $ 244 $244 to $244 | very good price | Find a flight |
| January 2026 | $ 281 $281 to $281 | very high price | Find a flight |
Data analysis:
Compared to the average price, april, may, june, july, august and december are cheaper to travel to Cardiff. So it may be interesting to book now to leave during these months!