These are the world's best economy and low-cost airlines, according to 13 million travelers

If you want to fly in style without spending a fortune, pay attention: There's a new top economy class in town.

It's Tokyo-based Japan Airlines, according to research firm Skytrax, which released the latest results from its annual "World's Best Airlines" rankings on Tuesday. The Japanese carrier finished ahead of runners-up Qatar Airways and Singapore Airlines, based on Skytrax's survey of more than 13.4 million airline customers across 356 different global airlines.

Or, if you're looking to get the most bang for your buck, take a look at Malaysia's AirAsia or Dallas-based Southwest Airlines, which topped this year's low-cost airline rankings.

Southwest scored particularly highly on seat comfort, WiFi and complimentary snacks and beverages on flights longer than 250 miles. AirAsia earned praise for its in-flight WiFi and seat power outlets.

Japan Airlines' economy class is designed to mimic the type of luxury you'd ordinarily find in first class. Its seats offer travelers more width and legroom than many other carriers — up to four more inches of legroom than the industry standard, according to NerdWallet.

Travelers on long-haul flights to Tokyo from cities like New York, Los Angeles, Chicago or London can expect an in-flight menu that includes options like Japanese soba noodles and smoked salmon.

The experience is "designed to ensure that customers on all classes are are able to experience premium services," Japan Airlines said in a statement on Friday.