The cheapest airport in United Kingdom is London Heathrow ? we've found flights from $309.

In 2026, the cheapest airport to fly out of the UK depends largely on your destination, but London Stansted (STN) and London Luton (LTN) consistently hold the title for the lowest average fares. These airports serve as the primary bases for ultra-low-cost carriers like Ryanair, easyJet, and Wizz Air, which offer "no-frills" tickets to hundreds of European cities for as little as £15–£30. For long-haul travel, London Gatwick (LGW) is often cheaper than Heathrow, as it hosts budget long-haul airlines like Norse Atlantic. Outside of London, Manchester (MAN) and Birmingham (BHX) offer highly competitive rates due to the presence of Jet2 and TUI. While Heathrow (LHR) has the most flights, its high landing fees usually result in higher ticket prices. For a 2026 traveler, the "cheapest" flight often involves flying from a secondary airport and factor in the cost of the "National Express" bus or train to get there.

Determining the single “cheapest” airport in the UK to fly from is tricky, as it depends heavily on your destination, time of year, airline promotions, and how far in advance you book.

However, based on consistent trends and the business models of low-cost carriers, some airports are reliably cheaper for a wide range of European and some long-haul routes.

Here’s a breakdown to help you decide:

Top Contenders for Cheapest Flights

1. London Stansted (STN)

   • Why it’s cheap: The main base for Ryanair in the UK and a major base for other low-cost carriers. It offers a huge number of routes across Europe, especially to smaller cities.
   • Best for: Cheap flights to European city breaks, Ireland, and Eastern Europe.

2. London Luton (LTN)

   • Why it’s cheap: A major base for easyJet, Ryanair, and Wizz Air. It’s extremely competitive on price for many popular destinations.
   • Best for: Similar to Stansted—great for European leisure destinations.

3. Manchester (MAN)

   • Why it’s cheap: The busiest airport outside London and a major hub for Ryanair, easyJet, and Jet2. It has a vast network of low-cost routes to Europe, plus some cheaper long-haul options (e.g., with airlines like Turkish Airlines or Emirates via their hubs).
   • Best for: Those in the North. It often has the best balance of low fares and a wide range of destinations, including more long-haul than the London low-cost airports.

4. London Gatwick (LGW)

   • Why it’s cheap: The world’s busiest single-runway airport. It’s a major base for easyJet and also