Ryanair is slashing fares with eight consecutive days of deals via its website and app.
Reductions of up to £30 off return flights across its European network next summer are being made available today.
The price cuts cover travel between April and September, but must be booked by midnight tonight (Monday).
The no-frills carrier claims that “the lowest fares in Europe are about to get even lower” with its daily offers.
In addition to the ‘cyber week’ promotion, Ryanair is also trimming 10% off the cost of checking in bags on all bookings made this week.
A spokesman said: “We’ve launched a massive ‘cyber week’ sale with eight days of amazing deals on the Ryanair.com website and app, offering customers the lowest fares in Europe, with even bigger savings.
“We’ve slashed fares by up to £30 on return flights across our European network for travel between April and September, which are only available until midnight tonight.
“And we’ll also run a 10% discount on all check-in bags booked this week, ensuring even more savings for our customers.”
Meanwhile, Flybe is offering 100,000 seats from £25 one-way on bookings made by November 26 for travel between December 8 and March 27.