Two vacations in one: How to add a second destination to your trip (for little or no cost)

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Adding a stop on your trip usually represents an additional cost on your flight. But some airlines allow you to add long stops or "stopovers" at no additional cost or for very affordable prices.

Stopovers are one of the best techniques I use on my trips to add destinations without spending a lot of money. If you are going on a trip to Europe or Asia, this can be an excellent strategy to add more destinations to your journey.

Here are several airlines that allow you to do it.

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How to add stops in Europe

Several European airlines allow you to add stops of up to six days to your flights at no additional cost.

  • Iberia Líneas Aéreas: Allows you to add a stop of up to six days in Madrid at no additional cost. For example, if you fly with the airline to France or Italy, you can request the Madrid stop for one to six days. See details here.

  • TAP Air Portugal: Allows you to add a stop of up to 10 days in Porto or Lisbon at no additional cost. See details here.

  • Icelandair: Allows you to add a stop of up to seven days in Iceland. See details here.

  • Aer Lingus: Allows you to add a stop of up to seven days in Ireland at no additional cost. You must make your purchase in a multi-city search in which you add Dublin as a stop.

  • Finnair: Allows you to add a stop of 24 hours to up to five days in Helsinki. You must make your purchase in a multi-city search in which you add Helsinki as a stop. See details here.

  • Virgin Atlantic Airways: Allows you to add a stop of 24 hours to seven days in London, United Kingdom, without paying additional money. See details here.

  • Turkish Airlines: Allows you to add a stop of one to three days in Istanbul, Turkey; some options include free hotel. See details here.

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How to add stops in Asia

  • Qatar Airways: The best airline in the world! It allows you to add a stop of one to four days in Qatar, starting at $14 (includes hotel). See details here.

  • Emirates: Allows you to add a stop of one to five days in Dubai (starting at $10). See details here.

  • Etihad Airways: Allows you to add a stop one to four days in Abu Dhabi (and book discounted hotels). See details here.

  • Singapore Airlines: Allows you to add a stop of one to seven days in Singapore (starting at $41, hotel included). See details here.

  • ANA (All Nippon Airways): Allows you to add a stop in Tokyo. You must make your purchase in a multi-city search in which you add Tokyo as a stop.

  • Japan Airlines: Allows you to add a stop of one to three days in Tokyo or Osaka. See details here.

  • EVA Air: Allows you to add a stop from one to seven days in Taipei. See details here.

It is possible to travel and save a lot of money if you use the right strategies – and stopovers are.

Wilson "Wil" Santiago Burgos is the founder of Mochileando.com, one of the largest travel platforms in Puerto Rico and the Latin American market in the U.S.

This article originally appeared on USA TODAY: How to add a second destination to your flight without spending a lot