With the continued absence of Saturday evening flights, an overnight stay has become essential for most games.
Unfortunately, Liverpool on Saturday evenings is party‑central and hotel prices reflect this accordingly. For other nights of the week, prices are generally much more reasonable.
If you’re determined to stay in the city centre, a useful website is…
Google Hotel Finder
For anyone looking for a hotel in Liverpool, Google Hotel Finder is a pretty neat way to quickly look at what's on offer ... although you will need to zoom in to see all of the accommodation on offer, and not all of the places have prices listed.
However, if you’re not a party animal, it’s worthwhile investigating hotels outside of the city centre and, in particular, those on the south side close to the airport.
Currently, there are just three hotels, plus a small guesthouse, within walking distance of the airport terminal (helpful for those late night arrivals/early morning departures whenever buses aren’t operating)...
Hampton by Hilton - Liverpool Airport
It is generally priced at around £99 per night per room, but this can vary quite a bit. Sometimes, there are advance purchase reductions available, and breakfast is included. For full details visit their website.
Premier Inn - Liverpool Airport
It is normally priced at £66 per room, but there are often good bargains to be had.
For full details check their website.
The Gateway Lodge is a modest guesthouse featuring simple ensuite rooms with free WiFi, plus a garden patio. It is located within a short walking distance (12 mins) from the airport terminal.
It is generally priced at £50/£75 per room. For full details check their website.
Travelodge - Liverpool Airport
It is normally priced at about £99 per room, but prices do vary. For full details check their website.
Trip Advisor Hotel Reviews
For extensive reviews of Liverpool's many hotels, see Trip Advisor's dedicated webpage.
Incidentally, this webpage is currently sorted in order of review rankings but can be easily changed to sort in order of costs.