Some good option for travellers in the UK looking for some reasonable solution to Mexico. Non-stop flights from London to Mexico City are now available already for £413 (€480). This is including travel dates over summer holidays 2017. Althought summer is not main tourist season in there you should still enjoy it (expect short rain showers in afternoon). Also flights in July / August are usually significantly more expensive. You can also depart from other airports in the UK with layover in London.