A Singapore Airlines flight takes off from Los Angeles International Airport (AFP via Getty Images)
A new ranking has identified the best and worst 19 airlines for long-haul flights, with Singapore Airlines securing the top position.
American Airlines and United were placed at the bottom of the list, ranking 19th and 18th respectively, while Delta Air Lines came in ninth.
The index was compiled by travel insurance firm Moneysupermarket, which analysed ratings from Skytrax, AirlineQuality, Tripadvisor, Trustpilot, and UK consumer advocacy group Which?.
Qatar Airways came in second, Cathay Pacific third, and TUI fourth, with Emirates rounding out the top five.
American and United's low scores were attributed to poor seat quality, entertainment, staff service, and food and drink offerings.