Find Cheap Flights Under £100

KAYAK aggregates deals from hundreds of travel providers to allow you to quickly and easily compare flight deals from United Kingdom that match your budget. Utilise the available filters to narrow down deals to ones that are perfect for you.

Getting a flight under £100, either one-way or return, can hinge on a few things like your destination, the airline you choose, and when you're buying the tickets. Return tickets used to be the standard, but these days, with budget airlines and more competition, that's not always the best option.

For domestic flights or short trips, one-way tickets under £100 often offer better deals. This is especially true if you're flying with a budget-friendly airline. If you're heading overseas or on a longer journey, return tickets under £100 usually provide more value for money. Another savvy way to stick to a £100 budget is by booking two one-way tickets with two different airlines. This clever strategy is known as a 'hacker fare'.

Yes – deals on flights under £100 can often be found on KAYAK from popular airlines such as Ryanair, easyJet and Wizz Air. Deal availability does depend on several factors, including the specific flight route you’re interested in, departure dates, and booking period. Be sure to check back regularly as new deals are often being discovered by KAYAK users.

Yes – KAYAK often has deals on flights under £100 departing and arriving within United Kingdom. Deals may vary depending on your preferred origin and arrival airports, as well as the day of the week and time of year, so be sure to check back soon if you’re not finding the flight deals you’re looking for.

Yes – deals on flights under £100 arriving outside United Kingdom can often be found on KAYAK. As international travel can often cost a bit more than domestic, the types of flight deals may vary (one-way or return) depending on the flight route and time of year you’re looking to travel. Be sure to check back soon if you’re not finding the right international flight deal under your budget as deals are consistently being refreshed.