Good news for Christmas travellers after Ryanair shelved plans to reduce its cabin baggage allowance until 15 January 2018.

The airline says it's delaying the change “to allow customers more time to familiarise themselves with the policy changes”.

However, some of the changes have actually already been put in place.

For example, the cost of checking in a 20kg bag to the hold has been reduced from £35 to £25, while you can no longer check in a smaller 15kg bag.

[Read more: How we travel the world on the cheap]

So what changes are being pushed back into 2018?

As it stands, you can take on up to two items of hand luggage (55cm x 40cm x 20cm) and a smaller bag like a handbag or laptop bag which has a maximum size of 35cm x 20cm x 20cm.

There's no weight limit on the smaller bag.

After mid-January you’ll still be able to take both bags through security and you can bring your smaller bag onboard but you’ll need to put the larger bag in the hold at the gate. Don’t worry, it won’t cost you any extra.

If you’d like to take two bags onto the plane, you can pay £5 more for priority boarding.

What Ryanair had to say

Ryanair's chief marketing officer Kenny Jacobs said:

“From January, we will be restricting non-priority customers to one small carry-on bag (their wheelie bag will be placed in the hold, free of charge, at the boarding gate) which will speed up the boarding of flights and eliminate flight delays.

"We have already introduced the first phase of the new bag policy which offers our customers lower bag fees for a 33% increase in their check-in bag allowance. This will lead to fewer customers with two carry-on bags at the boarding gates, which is causing flight delays."

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