Take the cheapest available flight combination from Kaunas via Vilnius or Warsaw; allow roughly 6–10 hours door-to-door, including the connection. Leave very early and use public transport to the departure airport rather than paying for parking—check the exact first-bus or train connection the night before, and keep a small snack for the journey. On arrival, follow signs for the official airport transport into central Paris: from Charles de Gaulle, the RER B is usually the best-value option at about €13, while Orly’s metro connection is similarly practical. Store luggage at your accommodation or a central locker before sightseeing; avoid unofficial taxi offers inside either airport.
Begin on Île de la Cité, walking along the Seine before admiring Notre-Dame de Paris from the parvis and the riverside quays. The cathedral exterior is free to view; interior entry may require a timed reservation through the official system and can take around an hour, so keep your schedule flexible after the flight. Continue to Sainte-Chapelle, where the upper chapel’s stained glass is best appreciated in bright daylight. Allow about an hour, book a timed ticket in advance if possible, and expect airport-style security. The two sights are only a few minutes apart on foot; a short coffee break around Rue Saint-Louis en l’Île is a good way to recover without adding a long detour.
Walk north across the Pont Louis-Philippe into Le Marais, taking your time through the historic lanes toward Place des Vosges and the neighborhood’s independent shops. From Sainte-Chapelle, the walk takes roughly 15–20 minutes; otherwise use Métro line 1 to Saint-Paul. For an inexpensive, filling dinner, go to L’As du Fallafel on Rue des Rosiers—expect about €10–15 per person, with takeaway generally quicker than waiting for a table. Finish with the planned evening stroll around Place des Vosges, whose arcades and symmetrical gardens are especially atmospheric after the daytime crowds thin. Shops often close around 19:00–20:00, but the square remains freely accessible; if you are tired from the journey, make this a relaxed loop rather than trying to see every corner of the district.
Start early at the Musée du Louvre: book a timed entry for opening time, ideally around 09:00, and allow about 2½ hours for a focused visit rather than trying to see everything. Go straight to your priorities—Mona Lisa, the Venus de Milo, and the Winged Victory of Samothrace—then use the Carrousel du Louvre exit for an easy onward walk. Tickets are generally around €22, and security plus the walk from the Métro can take 20–30 minutes, so arrive before your slot.
Walk through the Jardin des Tuileries toward Place de la Concorde, taking roughly 45 minutes at an unhurried pace. This is a good reset after the museum: sit beside the fountains, browse the seasonal stalls if open, and avoid rushing through the formal avenues. From Concorde, take Métro line 12 to Saint-Germain-des-Prés—about 15 minutes including the station walk—and have a light lunch or coffee at Café de Flore. Expect €15–30 per person; it is pricier than a neighborhood café, but ordering something simple at the bar or terrace keeps the stop manageable. Go before the main lunch rush if you want a better chance of a table.
Continue on foot through Saint-Germain-des-Prés to the Jardin du Luxembourg, around 15–20 minutes. Spend an hour around the palace exterior, Medici Fountain, tree-lined promenades, and the famous green chairs by the ponds; the gardens usually close around sunset, with seasonal hours, and admission is free. From Montparnasse, begin the airport transfer at least three hours before your flight. For Orly, Métro line 4 to Denfert-Rochereau followed by the Orlyval is usually straightforward; for Charles de Gaulle, RER B is generally the cheapest central route, while a pre-booked coach or taxi may be easier with luggage. Allow roughly 6–10 hours door-to-door for the flight, connection, and onward travel to Kaunas, and verify the airport and transfer times on your tickets before leaving the gardens.