Ranked: The Most and Least Expensive Airlines in Europe

The cost of flying in Europe continues to diverge sharply, with new data for 2025 and 2026 showing that passengers booking with the continent’s priciest airlines can pay more than seven times the average fare of those choosing the cheapest carriers.

New rankings highlight Europe’s airfare divide

A fresh ranking published in August 2026 compares 23 major European airlines using revenue per available seat kilometre, a benchmark that divides passenger revenue by capacity to show how much travellers effectively pay to fly each kilometre. Recent coverage indicates that the gap between the most and least expensive airlines has widened, even as competition on key routes remains intense.

According to the latest analysis, the cheapest airlines in Europe on a per kilometre basis include ultra low cost operators such as Wizz Air and Ryanair, which have continued to reduce their average revenue per seat kilometre between 2024 and 2025. At the other end of the table sit full service national carriers, led by British Airways as the most expensive large European airline based on 2025 data.

The ranking underscores how different business models translate into contrasting fare structures. Budget airlines still rely on stripped back base fares supplemented by optional extras, while traditional flag carriers concentrate more revenue into the ticket price, reflecting higher costs for service, network complexity and primary airport access.

The cheapest airlines: ultra low cost leads the pack

Among Europe’s least expensive airlines, recent research points consistently to Wizz Air and Ryanair as the strongest performers on price. A 2026 breakdown of low cost fares shows Wizz Air with the lowest average gross ticket price in a German market sample for spring 2025, followed closely by Ryanair and easyJet. Separate route-level studies from 2024 in Italy and elsewhere also rank Ryanair and Wizz Air at or near the bottom in terms of cents paid per kilometre flown, even when common extras such as cabin baggage are included.

Ryanair’s average fare has remained markedly below most European competitors, with industry analysis for 2024 placing it around one third lower than easyJet and significantly below other low cost rivals. Wizz Air’s pricing strategy has centred on aggressively low base fares from secondary airports, particularly in Central and Eastern Europe, helping it to undercut traditional carriers on many cross border routes.

Other relatively cheap operators in the latest European ranking include Vueling, Transavia and Norwegian, which combine low base fares with a growing range of paid add ons. These carriers often sit in the middle ground between ultra low cost and full service airlines, offering more flexibility and inclusive options while still undercutting the legacy groups on many routes.

For price sensitive travellers, the data suggests that consistently booking with ultra low cost airlines on competitive routes can translate into savings of dozens of euros per flight compared with using traditional national carriers. However, the final price still depends heavily on baggage, seat selection and timing of purchase, which can narrow or even erase the advantage if add ons are not carefully managed.

The most expensive carriers: legacy brands on top

On the more expensive side of the spectrum, the 2026 ranking identifies British Airways as the costliest major European national carrier based on revenue per available seat kilometre in 2025. The airline’s unit revenue rose again year on year, reinforcing its position at the top of the table among Europe’s traditional flag carriers.

Other full service groups, including Lufthansa, Air France and KLM, also feature toward the upper half of the cost ranking. Their higher unit revenues reflect a combination of factors such as the use of major hub airports, extensive long haul networks, business class and connecting traffic, as well as higher labour and infrastructure costs.

Mid table airlines include TAP Air Portugal, which recent coverage places around 17th out of 23 carriers surveyed, with an average of just under 7 euro cents per seat kilometre in 2025. That figure represents a modest decrease compared with 2024, showing that some legacy airlines are gradually reducing unit costs in response to low cost competition, even if they remain well above the cheapest operators.

Industry analysis notes that for many full service airlines, pushing fares significantly lower risks eroding margins on already tight networks. As a result, the pricing gap with ultra low cost competitors is likely to persist on short haul European routes, especially where business and premium leisure demand remains strong.

What the numbers really measure

While rankings based on revenue per available seat kilometre and average ticket price provide a clear snapshot of relative cost, aviation economists point out that they capture more than just the advertised base fare. Unit revenue reflects the combined impact of ticket prices, fees and load factors, as well as how efficiently an airline fills and utilises its aircraft.

Academic work on European airfares published in 2024 and 2025 highlights the role of dynamic pricing, with fares rising as departure dates approach and fluctuating in response to demand, competition and seasonality. Comparisons between low cost and full service carriers indicate that low cost operators continue to exert downward pressure on fares across markets where they compete directly.

At the same time, recent studies suggest that the price gap between budget and traditional airlines is not uniform. On some routes, particularly from secondary airports or during off peak periods, full service carriers can occasionally undercut low cost rivals, especially when baggage and ancillary fees are considered. This means that while rankings offer useful averages, the cheapest option for an individual journey still depends on timing, origin, destination and the specific mix of services required.

Analysts also stress that a focus solely on price overlooks other factors such as punctuality, network breadth and onboard product quality. Some low cost airlines now promote upgraded cabins, connectivity and flexible ticket options, blurring the line with legacy carriers and complicating simple rankings by cost alone.

How travellers can use the new rankings

For passengers planning trips around Europe, the latest list of the most and least expensive airlines serves as a reference point rather than a definitive guide to every booking decision. Knowing that carriers like Wizz Air and Ryanair typically sit at the bottom of the cost table, and that British Airways and other national airlines are among the most expensive on average, can help frame expectations when comparing fares.

Travel specialists broadly recommend that passengers treat base fare comparisons as a starting point and then factor in luggage, seat selection, payment surcharges and airport choice. In many cases, a slightly higher base fare on a mid priced airline such as Vueling, Transavia or Norwegian may work out cheaper overall once all compulsory extras are included.

The current data suggests that Europe will remain one of the most competitive short haul markets globally, with low cost carriers continuing to expand capacity and put pressure on fares. For now, the 2026 ranking highlights that the disparity between Europe’s cheapest and most expensive airlines is large and persistent, offering opportunities for travellers who are prepared to compare all elements of the ticket before they buy.