Riga (RIX) to Bilbao (BIO): 1,501 miles (2,416 km) great-circle, about 3h 30m nonstop by our estimate. Cheapest fare observed: $288 round-trip on Air Baltic, with 3 stops, departing May 25, 2026.
$288 round-trip, Air Baltic BT101, departing 2026-05-25 at 08:00, returning 2026-06-01. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 30 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $288, it ranked 15th of the 30 round-trip fares we recorded from RIX (median $304). That is 19.2 cents per great-circle mile (round-trip price over one-way distance), below the RIX median of 24.3 cents across 30 round-trip routes.
Routes from RIX of similar length: Yerevan (1,477 mi) at $353 and Barcelona (1,452 mi) at $166.
Air Baltic had the cheapest fare on 3 of 30 RIX routes. It is the 13th longest of the 30 routes we track from RIX.
Of 3 departure airports with a fare to Bilbao, Riga (RIX) ranked 2nd at $288. Lowest: $149 from Porto (OPO); highest: $821 from Havana (HAV); 1 nonstop. Cheapest-fare airlines (routes): Air Baltic (1), Air Europa (1) and Vueling (1).
That depends on your passport and trip, so check the official source for Spain: European Commission: Schengen visa policy. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Riga, Europe/Madrid; flight time is our estimate.