Riga to Lisbon is a genuine non-stop route: airBaltic flies it directly in about 4 hours 40 minutes, linking the Baltic to the Atlantic without a change of plane. It’s a thin, seasonal service of about three flights a week, so timing matters if you want the convenience of a direct flight — and so does budget, because on this route the non-stop is the expensive option rather than the cheap one. This guide covers who flies the route, what a fair return fare looks like in euros, and when to book for the best price.
Route: Riga (RIX) → Lisbon Humberto Delgado (LIS)
Distance: approximately 3,450 km (2,140 miles)
Non-stop flight time: about 4h 40m westbound
Direct flights: Yes — airBaltic flies non-stop from Riga to Lisbon, about three flights a week, with frequency varying by season. One-stop options rarely beat the direct on total time — 6h 35m at best against 4h 40m — but they do beat it on price: the cheapest non-stop we priced was €215, against €145 with a change.
Fares from Riga to Lisbon (EUR)
Lisbon is a year-round city break, but fares and frequency both climb in summer, when the direct service runs most often and demand is highest. Spring and autumn are the sweet spot for mild weather and lower prices; winter is cheapest of all, though with fewer weekly departures. The figures below are typical economy return fares in euros — the lowest sit in the shoulder and off-season, the highest around the July–August peak.
| Month | Demand |
|---|---|
| January | low |
| February | low |
| March | medium |
| April | medium |
| May | medium-high |
| June | high |
| July | very high |
| August | very high |
| September | high |
| October | medium |
| November | low |
| December | medium (holidays) |
Reference points from our own deal tracking: nothing sold below €145 in the dates we could price, and that floor is a connecting fare. A typical fare across the route is roughly €213; for the airBaltic non-stop specifically, reckon on €215–€245 in the quieter months and treat anything under €175 (with a change) or €215 (non-stop) as worth booking quickly. These are indicative economy returns, not fixed quotes.
Airlines on this route
Non-stop (about 4h 40m):
- airBaltic — the only carrier flying Riga to Lisbon non-stop, on its Airbus A220 fleet; seasonal frequency, heaviest over the summer.
One-stop (an alternative on off-peak dates or when the direct is full):
- Lufthansa via Frankfurt or Munich — frequent connections and full-service comfort into Lisbon.
- TAP Air Portugal via a European hub — Portugal’s flag carrier, with a strong onward network from Lisbon if you’re travelling beyond.
- Ryanair and Vueling — not a one-stop in the usual sense, but this is where the cheap fares are: 68 of the hundred cheapest fares we priced were self-transfers, pairing two separate tickets through Stansted, Charleroi, Bergamo or Barcelona, from €145–€228. They take 6h 35m to 17h 55m instead of 4h 40m, and because the two tickets are unconnected, a delay on the first leg is your problem rather than the airline’s.
- LOT Polish Airlines via Warsaw and Finnair via Helsinki — further one-stop options, though neither appeared among the hundred cheapest fares we priced.
For most travellers the airBaltic direct is the obvious pick on the days it runs — it’s the fastest by a wide margin. If your dates fall on a day without a direct flight, a single stop through Frankfurt or another European hub keeps the trip under about seven hours.
When to book & how to save
- Book 1–3 months ahead for the best fares; the direct service sells well in summer, so the cheapest seats go early.
- Travel in the shoulder seasons (April–May, September–October) for mild weather, lower prices and still-frequent flights.
- Check the day of the week: because the route is seasonal, direct flights don’t run daily — being flexible by a day or two can be the difference between a non-stop and a connection.
- Compare fare types: airBaltic’s cheapest fares carry very little baggage — since 6 May 2026 its cheapest ticket, Economy MINI, includes a personal item only (40 × 30 × 15 cm) and no cabin bag; Economy BASIC adds the cabin bag — so if you need a checked bag, price the bundle rather than adding it later.
- Watch winter frequency: the direct thins out in the colder months, so book ahead if you want the non-stop over Christmas or New Year.
Arriving in Lisbon
Flights land at Lisbon Humberto Delgado Airport (LIS), only about 7 km north of the city centre — one of Europe’s most central airports. The Metro (red line) runs straight from the terminal into town for around €2, and the Aerobus and city buses are similarly cheap. A taxi or ride-hail to the centre takes 15–25 minutes and costs roughly €12–€20 depending on traffic and time of day.
Frequently asked questions
Are there direct flights from Riga to Lisbon?
Yes. airBaltic flies non-stop from Riga to Lisbon in about 4 hours 40 minutes, on its A220. It is a thin, seasonal route — about three flights a week — so it doesn’t operate every day. On days without a direct, a connection through a European hub is the alternative, and on this route those connections are also where the cheapest fares are.
How long is the flight from Riga to Lisbon?
The non-stop airBaltic flight takes about 4 hours 40 minutes westbound, and a little longer on the way back against the prevailing winds. One-stop itineraries through Frankfurt, Warsaw or Helsinki usually total around 6 to 8 hours depending on the connection.
How much does it cost to fly from Riga to Lisbon?
In the dates we could price, returns ran €145–€434 with a median near €213. Which product you buy matters more than the season here: the airBaltic non-stop was €215–€434, while connecting and self-transfer fares ran €145–€264. The July–August summer peak sits toward the top of the range. A fare with a checked bag included typically starts near €135.
What is the cheapest month to fly from Riga to Lisbon?
January, February and November are usually the cheapest. Our sample covers September to January, so it cannot price February — but it does show the non-stop at its lowest in November and December (€215–€245, against €376–€434 in September), and nothing at all on the route sold below €145. Prices climb through spring and peak in July and August, so if you want warm weather at a lower price, aim for May, September or October.
Which airlines fly from Riga to Lisbon?
Non-stop: airBaltic, the only carrier flying the route directly — every direct leg in our fare sample was its A220. For the cheaper fares you change planes: Ryanair and Vueling self-transfers via Stansted, Charleroi, Bergamo or Barcelona held 68 of the hundred cheapest at €145–€228, and Lufthansa (via Frankfurt or Munich) appeared at €209–€264 as a single-ticket connection. TAP Air Portugal, LOT Polish Airlines (via Warsaw) and Finnair (via Helsinki) are handy on dates when the direct doesn’t run, though none was among the cheapest hundred.
Which airport do I fly into in Lisbon?
You arrive at Lisbon Humberto Delgado Airport (LIS), the city’s main and only commercial airport, just about 7 km north of the centre. The Metro red line connects the terminal directly to the city for around €2, making it one of the easiest airport transfers in Europe.
How far in advance should I book Riga to Lisbon flights?
Aim to book 1 to 3 months ahead. Because the direct service is seasonal and popular in summer, the cheapest non-stop seats go early — especially for July and August travel and around the Christmas holidays.
Is it cheaper to fly on weekdays?
Often, yes — midweek departures (Tuesday to Thursday) tend to be cheaper than Friday to Sunday. On a seasonal route, checking a couple of alternative days also improves your chance of catching a direct flight rather than a connection.
Fare guidance based on aifly.one deal tracking and current airline schedules; last reviewed July 2026. Indicative economy returns — always check the live fare before booking.
