Circle K 51 O'neill Rd, Belfast
51 O'neill Rd, BT36 6UN Belfast — Northern Ireland
Circle K is a petrol station in Belfast, Northern Ireland. Find current diesel and unleaded prices, the full price history, opening hours and accepted payment methods — data source: UK Fuel Finder.
The prices for this petrol station have not been updated for some time.
Note: Price data is updated hourly and may be several hours out of date.
Unleaded (E10)
£ 1.539
Last price change: 27/08/2026, 14:40
3.0 p below regional avg
Diesel
£ 1.759
Last price change: 01/09/2026, 14:10
3.0 p below regional avg
Fill-up costUnleaded (E10)£61.56Diesel£70.36
Price history
Interactive price history for this petrol station — shows diesel and unleaded price trends over the selected time range. Circle K: Unleaded (E10): £ 1.539, Diesel: £ 1.759.
| Date | Diesel | Unleaded (E10) |
|---|---|---|
| 29/08/2026 | £ 1.769 | £ 1.539 |
| 30/08/2026 | £ 1.769 | £ 1.539 |
| 31/08/2026 | £ 1.769 | £ 1.539 |
| 01/09/2026 | £ 1.759 | £ 1.539 |
| 03/09/2026 | £ 1.759 | £ 1.539 |
| 04/09/2026 | £ 1.759 | £ 1.539 |
| 05/09/2026 | £ 1.759 | £ 1.539 |
Prices are based on data reported by the station and may differ from the price at the pump.
Price analysis
- Circle K is currently 3.0p (1.7%) cheaper than the average in Northern Ireland.
- Circle K is located in Belfast, Northern Ireland.
Price statistics
30 days
Low£ 1.699
High£ 1.779
Average£ 1.751
90 days
Low£ 1.499
High£ 1.779
Average£ 1.662
1 year
Low£ 1.499
High£ 1.899
Average£ 1.704
- Statistically, the cheapest day to fill up here is Sunday.
- The price has changed 6 times in the last 30 days.
| Month | Avg. price |
|---|---|
| April 2026 | £ 1.805 |
| May 2026 | £ 1.767 |
| June 2026 | £ 1.615 |
| July 2026 | £ 1.615 |
| August 2026 | £ 1.746 |
| September 2026 | £ 1.761 |
Data since April 2026
Frequently asked questions about Circle K
When is fuel cheapest at Circle K?
Statistically, the cheapest day to fill up at Circle K is Sunday.
How often does the fuel price change at Circle K?
Over the last 30 days, the Diesel price at Circle K has changed 6 times.
Loading map… — Circle K, 51 O'neill Rd, BT36 6UN Belfast. 5 nearby petrol stations.