Rises in petrol, diesel and airfares pushed UK inflation up to 3.1% in the year to August.
Inflation accelerated from 2.9% in the 12 months to July, according to the Office for National Statistics (ONS).
The cost of filling up a vehicle soared in August as the conflict in the Middle East continued to disrupt global oil supplies. Petrol prices jumped to the highest for nearly four years, the ONS said, while diesel also rocketed.
Meanwhile, the cost of flying jumped during the key month for summer getaways.
Overall, motor fuel prices rose by 23% compared to August last year.
Inflation has moved further away from the Bank of England’s 2% target.
The bank uses interest rates to control inflation.
The rate currently stands at 3.75% and the Bank of England is meeting on Thursday to decide whether to change it.
