A bit more experienced travellers may consider current offer of American Airlines to visit both USA and countries of Central America during the trip. The cheapest flights are available when departing either from Barcelona or Madrid and returning back to UK (London, Manchester) or Germany (Frankfurt, Dusseldorf). The flights to USA (Miami) and various countries of Central America (Panama, Nicaragua, Honduras, El Salvador, Guatemala, Costa Rica) are available from quite interesting Ł374 (€455).
In case of interest you may book the flights directly with carrier American Airlines here. Go to “refine your search” and choose multi-city search option. You have to look for three leg flights as below:
Barcelona/Madrid – coutry of Central America
country of Central America – Miami
Miami – cities in UK/Germany
Any doubts please refer to the booking samples at the bottom of this entry. We have managed to find the cheapest flights within April and May 2014.
The easiest way to look up your connection flight to Barcelona or Madrid is through Skyscanner. For instance you may fly from London to Barcelona with low-cost airline Norwegian for just Ł30 (one-way ticket).
Do not forget to issue ESTA certification before your way to USA.
Booking sample of an multi city flight from Europe to USA and Costa Rica for Ł374 (€455) below. in this case you would be departing from Barcelona on 9th of May to San Jose. You would be leaving Costa Rica to Miami on 20th of May and your final flight from USA to London would take place on 26th of May 2014.
Booking sample of a multi city flight from Barcelona to Nicaragua (Managua) then to Miami and with return flight to Frankfurt for Ł406 (€495) below.