Cheap flights from Riga to Lisbon from €93

In general, May is the cheapest month to fly from Riga to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €188. If you don’t want to visit Lisbon in May, then you should wait until June to fly from Riga, when ticket prices are also cheap, with an average price of €196.

Fly from Riga Intl to Lisbon Humberto Delgado for the best Riga Intl - Lisbon Humberto Delgado flight prices

You are more likely to see cheaper flights to Lisbon from Riga when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around €296 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Riga for as low as €184 on momondo.

There is only 1 cabin class available to choose from on Riga to Lisbon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 12% on your flight if you consider stops on a Riga to Lisbon flight.

As of September 2026, prices for Riga to Lisbon flights are approximately 12% more expensive when compared to flights at the same time last year.

Historically, on average around 26% of flights between Riga and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 97 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Carpatair have had the fewest delays on this route over the last 12 months, with about 26% of their flights experiencing any sort of delay.

Copenhagen (CPH) was the most common stop: 85% of momondo users choosing one-stop flights on this route connected there.

Flights via Copenhagen (CPH) offer the lowest average return price of €181.

Flights connecting via Copenhagen (CPH) have the shortest average one-way travel time: 6h 38m.

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 31m.