Budget airline Ryanair has suffered a 25 million euro (£22 million) blow in the wake of its flight cancellation fiasco, but has still bolstered half-year profits by 11%.
The Irish firm said costs in its "sales, marketing and other" bracket leapt 30%, as it dished out compensation after around 700,000 customers were disrupted by cancelled flights stretching from September to October.
The low-cost carrier has come under fire after cancelling around 20,000 flights in the autumn due to an error over pilot holiday rosters.
Despite the hit, pre-tax profits climbed to 1.293 billion euro (£1.139 billion) for the six months ending in September, up from 1.168 billion euro (£1.029 billion) over the period last year.
The jump was driven by a strong Easter period, helping bolster customer numbers by 11% to 72.1 million.
Revenues also picked up 7% to 4.425 billion euro (£3.899 billion), as it added 80 new routes and drove down air fares by 5%.
Chief executive Michael O'Leary said: "These strong H1 results reinforce the robust nature of Ryanair's low fare, pan-European growth model, even during a period which suffered a material failure in our pilot rostering function in early September.
"Prior to this event, we were on track to deliver strong H1 results during which we opened three new bases and 80 new routes.
"We took delivery of 35 new B737s in the first six months of 2017, we stimulated 11% traffic growth with 5% lower airfares, and achieved an industry record load factor of 97% in the peak summer months."
World's weirdest airlines
World's weirdest airlines
Not all airlines offer standard flight experiences. Travellers looking for fun or unusual services can enjoy the most unexpected journeys across the skies with the world's wackiest airlines.
Whether you and your travel companion are 'cuddlers' or you're a social media junkie, these are the weirdest and unique airlines offering unconventional flights...
This South African low-cost airline is known for offering one of the most entertaining in-flight services. The brand was built on South African humour and has a fleet of 12 bright green Boeing 737s. Its tongue-in-cheek style includes in-flight instructions such as, "Please note we do not accept unwanted mother-in-laws or children". In 2011, the airline offered bride-to-be Kate Middleton's family a herd of cows as a gift.
Ideal for passengers who have trouble relaxing on a plane, Air Malta's Sky Spa offers the unusual service of free pampering on short-haul flights - and for economy passengers. Two professional therapists welcome flyers with beauty product samples and pamper them with the complimentary treatments, which include hand, feet and neck massages as they listen to relaxing music.
When it comes to themed aircraft, EVA Air wins for its colourful Hello Kitty jets that are designed to make flying fun and give passengers an experience to remember. Adorned with images of Hello Kitty and her friends, the planes are not the only feature cartoon fans can enjoy. At check-in, passengers receive Hello Kitty boarding passes and on-board, the cabin crew wears Hello Kitty uniform. The quirky flights are available on selected routes, including Taipei to Paris, Taipei to Singapore and Taipei to Chicago.
The flights are no longer available and after hosting a mid-flight dance by bikini-wearing beauty pageant contestants in 2011, Vietnamese no-frills airline VietJet Air was fined 20m dong (£611) by aviation authorities. The company said it wanted to capture a "holiday atmosphere" for its new flight route to Nha Trang. Nguyen Trong Thang, chief inspector of Vietnam's civil aviation body, said the carrier "had violated the local aviation regulations by organising unapproved show on a plane".
If you can't get enough of social media, KLM is the airline for you. The carrier's Meet & Seat service allows you to find out who will be on your flight, view other passengers' Facebook or LinkedIn and see where they are sitting. It's a fun way to find out about interesting people who will be on board. But for those who find it creepy, you can opt out of having your social media accounts linked with your flight bookings - phew!
Passengers who can't keep their hands off their travel companions will adore Air New Zealand's Economy SkyCouch, also known to some travellers as 'cuddle class'. The SkyCouch is a row of three seats that are like having your own couch on the plane. Passengers can create a flat, flexible space to use however they like and it even has an extension belt for when you want to lie down and armrests that disappear into the back of the seat.
Pokémon fans far and wide can fly in a themed jet with ANA on routes such as Tokyo to Frankfurt and Tokyo to Paris. The planes feature characters including Pikachu, Togepi, Mew and Snorlax, with in-flight treats ranging from juice served in Pokémon cups and flight attendants wearing colourful poké-aprons.
Can't decide where you want to fly? Eurowings offers mystery flights at a fixed price. The Blind Booking service allows you to choose a departure airport and what sort of trip you're in the mood for (gay-friendly, shopping and culture are some of the options). If there are locations you'd rather not visit, you can pay five euros per undesirable destination to exclude these from the selection. As soon as your booking is complete, you'll find out your destination.
Low-cost airline WOW air is so supportive of LGBT rights and advancing support of the community in the US that it introduced a new aircraft name TF-GAY to its fleet in 2016. The carrier, known for its bright-purple planes, launched the new Airbus A330-300 to serve its Reykjavik to San Francisco route. WOW air's CEO Skuli Mogensen said: "Since day one, we’ve emphasised joy and friendliness in our services because we want everybody to feel welcome in the WOW family. And we think TF-GAY fits right in with our modern family concept."