A three-times-daily weekday service between London St Pancras International and Amsterdam Centraal station resumed on Monday (10 February).
Eurostar will also operate the route three times a day on Sundays, and twice a day on Saturdays.
It follows works at Amsterdam Centraal to create a new UK Eurostar terminal capable of accommodating a greater number of passengers.
Passenger numbers from Amsterdam will be increased in phases over the next six months, with services through to late-March initially able to accommodate a maximum of 400 passengers.
Then, following a temporary terminal closure between 30 March and 22 April to accommodate further platform renovations, passenger capacity from Amsterdam will increase to 600, and finally to 650 by September.
Eurostar’s longer-term aim is to expand the London-Amsterdam route to five daily services by 2026.
Gwendoline Cazenave, Eurostar chief executive, said the "state-of-the-art" new terminal would ensure a "seamless and sustainable" travel experience, and along with the restoration of capacity, "set the standards for connectivity across Europe".
"The tripling of capacity on the Netherlands-UK route is step one in a broader strategy to increase Eurostar’s network for customers all across Europe," she added.
Eurostar said its new Amsterdam terminal featured carbon-negative flooring, recycled plating, felt ceilings and smart lighting to ensure an A+ energy efficiency rating.
Other features include high-speed WiFi, a real-time information system, seating areas designed both for relaxation and productivity, barista coffee and fresh pastries from a new cafe, and free chilled water.
