Boris Johnson has granted pubs special permission to open until 11.15pm – 15 minutes after normal closing time – in case the showpiece event goes to extra time and penalties.
And pubs and bars from Chorley to Blackpool and from Preston to Burnley will be taking full advantage.
The Fan Zone on Preston's Flag Market is a sell-out once again.
Preston City Centre Business Improvement District manager Mark Whittle said today (Thursday): "Last night was huge for towns and city centres across the land, and Preston was no exception.
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"Venues who've had a really tough time were given an opportunity to have good trade.
"Sunday is going to be special for many reasons, and we hope that people will consider safely enjoying the final in one of the city's venues.
"They still need our support and I am sure they would welcome people booking in advance where necessary."
The final is due to start at 8pm, and would ordinarily finish by about 10pm.
However, the potential for extra time and a penalty shoot-out means the match could end later than planned.
The Prime Minister’s official spokesman said: “We are taking forward plans to allow pubs to open until 11.15pm on Sunday.
“The entire nation has been gripped by the Euros and this will ensure people can come together to enjoy the final in pubs, should they wish to do so.”
Preston venues so far confirmed as showing the match include:
Market Street Social
Wings & Beer
Winckley St Ale House
Ships & Giggles
Old White Bull
In Chorley, pubs confirmed include the Prince of Wales, the Yarrow Bridge and the Cardwell Arms at Adlington; and in Leyland the Queens, The Railway and the Gables.
Contact your local directly for more details about timings. booking etc.