Warmer weather will make a welcome return over the bank holiday weekend.
While those flying abroad head for hotspots such as Nice, Malaga and Rome, those staying in Britain can expect temperatures to reach 19C (66F) over the weekend.
Some roadworks on motorways and major A-roads have been lifted for the holiday period but works remain on some busy roads, including the M25 and the M4. On the railways, there will be engineering work on some routes, including the West Coast main line, and major development work beginning at London Bridge station.
Paul Mott, a senior forecaster with MeteoGroup, the weather division of the Press Association, said: "The weather is going to be warming up a little bit, although the weekend is not going to be a scorcher."
He said Friday could be quite chilly in England and Wales with temperatures probably only reaching 13C (55F), although Scotland could see 16C (61F). Saturday is expected to be a mostly dry day in England and Wales, with temperatures as high as 17C (63F), while the thermometer could touch 19C in southern England on Sunday.
Bank Holiday Monday could be chillier in the west, though, with rain sweeping in. But southern England could see temperatures of 17C.
British Airways will be carrying more than 463,000 customers over the bank holiday weekend, with 128,000 travelling on Friday and 116,000 flying on Bank Holiday Monday. The most popular long-haul destinations for BA customers include New York, Boston, Los Angeles and San Francisco. Top short-haul destinations include Nice, Barcelona, Malaga, Rome, Edinburgh and Paris.
The AA said as many as 17 million cars could be on the roads over the weekend. It said the busiest times would be Friday evening and Saturday with people possibly making up for not getting away at Easter.
Information company Trafficmaster said routes likely to be particularly busy included the M3 in Hampshire, the M4 heading west, the M6 around Blackpool, sections of the M25 and the A82 towards the Scottish Highlands.