I like to ride in second class ( Standard class ) to save money . The Eurostar train passes under the English Channel in 20 minutes . Air France is operating a competing direct service between London and Paris . A one - way , full - fare ticket runs about $ 200 first - class and $ 300 second - class . Cheaper tickets come with more restrictions and can sell out quickly .
The Eurostar train passes under the English Channel in 20 minutes . Air France is operating a competing direct service between London and Paris . A one - way , full - fare ticket runs about $ 200 first - class and $ 300 second - class . Cheaper tickets come with more restrictions and can sell out quickly .