Budget airline Ryanair is taking part in the shopping extravaganza this year.
The travel firm has launched a "Buy One Get One Free" offer on 1,700 routes across its network.
Ryanair's incredible deal is available on travel between December 1, 2020, and March 27, 2021.
Its sale is expected to last until midnight tonight (November 28), so if you want to make the most of it you've got to be quick.
From the UK, you can fly to Ireland, Italy, Portugal, Poland, Netherlands, Malta and many more destinations.
Dara Brady, Ryanair's Director of Marketing, said: "Book from 3pm today for travel from December 1, 2020, until March 27, 2021, across 1,700 routes and get a second ticket on the same flight for free."
The promotion is subject to availability and only works for selected routes only.
Customers will have to book one fare ticket to get the second same flight for free.
Any flight changes that are made to bookings apart of the BOGOF deal will be charged a Flight Change Fee.
Are you looking for more promotions?
Here are the best Black Friday 2020 travel deals with cheap flights and discounted packages.
Virgin Experience Days has deals going up on the site all week.
Even easyJet is getting involved with 350,000 seats now as little as £24.99 on its Black Friday promotion.
If you're looking for a long haul flight, Virgin Atlantic has got you covered.
The airline is selling return flights to New York from just £280.
Plus there are deals on flights to LA, San Francisco, Barbados and many more.
Just don't forget to check the travel guidelines before booking anything.