Statistics on Dublin-Rennes 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 Rennes (from: Dublin)
The average price to go to Rennes from Dublin airport is $ 251 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 199 (in september) and $ 294 (in december), which is a saving of $ 52 or a surplus of $ 43 (compared to the average price) depending on the period you leave.
The analysis of all the prices reveals that the most frequent price is between $165 to $220 and that it is generally more economical to leave on a wednesday and return on a wednesday on a direct flight.
Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Rennes before booking your flight.
If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Dublin-Rennes plane ticket.
How are these data calculated?
We have studied a sample of 16478 airfare prices from previous years for flights to Rennes from Dublin and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.
Average price depending on the departure month
Data analysis:
By leaving in september, the price of the plane ticket will statistically be the cheapest ($ 199, saving $ 52 compared to the average price over the year which is $ 251). Conversely, december will be the most expensive ($ 294).
Flight Dublin-Rennes: when is the best time to go for the best price?
| Month | Good price* | Average price | Our opinion |
|---|---|---|---|
| January | $ 199 | $ 238 | fair price |
| February | $ 212 | $ 261 | fair price |
| March | $ 214 | $ 252 | fair price |
| April | $ 239 | $ 283 | high price |
| May | $ 204 | $ 230 | fair price |
| June | $ 213 | $ 250 | fair price |
| July | $ 213 | $ 266 | fair price |
| August | $ 215 | $ 273 | high price |
| September | $ 174 | $ 199 the cheapest | very good price |
| October | $ 188 | $ 235 | fair price |
| November | $ 183 | $ 227 | fair price |
| December | $ 218 | $ 294 the most expensive | very 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 Dublin to Rennes
Data analysis:
The prices for flights from Dublin to Rennes range from $110 to $495. 9% of tickets were purchased at the minimum price (from $110 to $165), 2% at the maximum price (from $440 to $495). The majority of plane tickets were purchased in the range of $165 to $220 (35% of tickets).
Cheapest airlines for the Dublin->Rennes flight
There are 7 companies that serve Dublin from Rennes airport: Ryanair, KLM, Aer Lingus, Air France, Lufthansa, British Airways and Flybe.
Data analysis:
Of the 16478 flights analyzed in previous years, Ryanair was the airline that offered the best fare most often in the flight ticket search results (34% of the time) on the Dublin->Rennes route.
Direct flight or flight with layover?
Data analysis:
To get the best price for the Dublin-Rennes flight, you should take a direct flight (saving an average of $ 19 compared to a flight with one or more layovers).
Which day of the week to leave?
Data analysis:
Statistically, Dublin-Rennes 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 $18. On the other hand, departing on a sunday may cost you an additional $21.
Which day of the week to come back?
Data analysis:
Statistically, return flights from Rennes to Dublin departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday for your return date, you will save an average of $13. Conversely, departing from Rennes on a sunday may cost you an additional $16.
Top prices Dublin-Rennes
| Round trip | Dates | Price | |
|---|---|---|---|
| Dublin → Rennes | 07-05 to 14-05-2025 | $ 132 | direct flight with Aer Lingus |
| Dublin → Rennes | 10-05 to 14-05-2025 | $ 179 | direct flight with Aer Lingus |
| Dublin → Rennes | 07-06 to 14-06-2025 | $ 194 | direct flight with Aer Lingus |
| Dublin → Rennes | 13-06 to 18-06-2025 | $ 195 | layover flight with KLM |
| Dublin → Rennes | 14-06 to 18-06-2025 | $ 153 | direct flight with Aer Lingus |
| Dublin → Rennes | 03-09 to 10-09-2025 | $ 175 | direct flight with Aer Lingus |
| Dublin → Rennes | 10-09 to 17-09-2025 | $ 182 | direct flight with Aer Lingus |
| Dublin → Rennes | 17-09 to 23-09-2025 | $ 196 | layover flight with KLM |
| Dublin → Rennes | 22-09 to 27-09-2025 | $ 196 | layover flight with KLM |
| Dublin → Rennes | 23-09 to 27-09-2025 | $ 188 | layover flight with Ryanair |
When to book your flight Dublin - Rennes to get the cheapest price?
Statistically, you will make the biggest savings by buying your plane ticket between 2 to 3 months in advance. However, you may end up paying a high price if you book between 0 to 1 month 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 Dublin-Rennes flight, it is recommended to book your ticket on a friday.
How far in advance should I buy my flight?
Data analysis:
To get the cheapest flight ticket from Dublin to Rennes, it is recommended to buy it 2 to 3 months before departure (it is then on average 227 $, which is a saving of 24 $ compared to the overall average price). On the other hand, if you buy your ticket 0 to 1 month in advance, you will pay the full price (28 $ more than the average price).
Depending on the departure month
The best time to buy your Dublin to Rennes 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: 205 $) Other interesting period(s): 1 to 2 months ($ 227) |
| February | Best time: 3 to 4 months before departure (average price: 215 $) Other interesting period(s): 1 to 2 months ($ 240), 2 to 3 months ($ 227) |
| March | Best time: 2 to 3 months before departure (average price: 239 $) Other interesting period(s): 1 to 2 months ($ 241) |
| April | Best time: 3 to 4 months before departure (average price: 252 $) Other interesting period(s): 2 to 3 months ($ 270), 4 to 5 months ($ 263) |
| May | Best time: 1 to 2 months before departure (average price: 215 $) Other interesting period(s): 2 to 3 months ($ 218), 3 to 4 months ($ 224) |
| June | Best time: 1 to 2 months before departure (average price: 231 $) Other interesting period(s): 2 to 3 months ($ 231) |
| July | Best time: 1 to 2 months before departure (average price: 235 $) Other interesting period(s): 2 to 3 months ($ 240), 5 to 6 months ($ 263), 7 to 8 months ($ 263), 8 to 9 months ($ 260), 9 to 10 months ($ 248), 10 to 11 months ($ 259) |
| August | Best time: 2 to 3 months before departure (average price: 217 $) Other interesting period(s): 1 to 2 months ($ 252), 3 to 4 months ($ 218), 4 to 5 months ($ 262), 5 to 6 months ($ 271), 6 to 7 months ($ 260), 7 to 8 months ($ 264) |
| September | Best time: 3 to 4 months before departure (average price: 171 $) Other interesting period(s): 1 to 2 months ($ 188), 2 to 3 months ($ 176), 4 to 5 months ($ 188), 5 to 6 months ($ 199) |
| October | Best time: 2 to 3 months before departure (average price: 185 $) Other interesting period(s): 1 to 2 months ($ 205), 3 to 4 months ($ 192) |
| November | Best time: 2 to 3 months before departure (average price: 181 $) Other interesting period(s): 1 to 2 months ($ 216) |
| December | Best time: 3 to 4 months before departure (average price: 265 $) |
What day of the week should I book my flight ticket?
Data analysis:
Statistically, friday is the day when plane tickets for Dublin->Rennes are the cheapest. So, by buying your plane ticket on a friday, you will save $3. Conversely, by buying it on a sunday, you may end up paying $5 more.
Dublin to Rennes: 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 | $ 305 $198 to $684 | high price | Find a flight |
| May 2025 | $ 206 $132 to $313 | very good price | Find a flight |
| June 2025 | $ 222 $152 to $351 | very good price | Find a flight |
| July 2025 | $ 309 $198 to $424 | high price | Find a flight |
| August 2025 | $ 242 $212 to $281 | very good price | Find a flight |
| September 2025 | $ 190 $175 to $198 | very good price | Find a flight |
| October 2025 | $ 257 $210 to $303 | high price | Find a flight |
Data analysis:
Compared to the average price, may, june, august and september are cheaper to travel to Rennes. So it may be interesting to book now to leave during these months!