Budapest in 4 Days Plus Day Trips
Four days is the same Danube Bend and Eger spine as the 3-day plan, plus a full day in a different country. Vienna is a cheaper, easier train ride than most people expect, book it days ahead and it costs less than a nice Budapest dinner. Shorter trip? See the 3-day version . Got a fifth day? The 5-day plan adds Bratislava.
Book these before you go
- Budapest hotel near Keleti or the M2 red metro line: check rates on Booking.com
- Vienna Railjet ticket, book days ahead for the cheap fare tier: check fares on oebb.at
- Prefer a guided Eger wine day: Eger wine day tour
Day 1: Land, settle into Budapest
Bus 100E runs from the airport straight to Deak Ferenc ter for 2,500 HUF, roughly 30-45 minutes depending on traffic; a Fotaxi booth at arrivals dispatches a fixed fare of 10,000-13,000 HUF if you’d rather not deal with the bus. Skip anyone offering a ride before you’ve reached either option. Settle in near Keleti station or anywhere on the M2 red line, since Keleti is also where Wednesday’s train to Vienna departs. Hungary uses the forint, not the euro, so decline any card terminal’s offer to charge you in euros instead.
Day 2: The Danube Bend, Szentendre
Take the HEV suburban line H5 from Batthyany ter, every 15-20 minutes, for the roughly 40 minute ride to Szentendre. A standard BKK ticket plus a small supplement covers it, around 700-800 HUF one way. Walk the Baroque old town and see the Skanzen open-air museum if time allows, then head back for the evening.
Day 3: Eger’s wine cellars
A direct MAV train from Keleti covers the roughly 132km to Eger in about 1 hour 50 minutes, close to hourly, for a fare around 3,000-4,000 HUF. Pick two or three cellars in the “Valley of the Beautiful Women” and taste Egri Bikavar properly rather than rushing five. The hilltop castle fills an extra hour if you want it.
Day 4: Vienna, a whole other country
Railjet and EuroCity services from Keleti run 12-16 times a day, covering the roughly 2 hour 16 minute to 2 hour 37 minute ride. Book online a few days ahead and fares start around EUR 12-19; wait until the day of travel and the same seat runs EUR 32 or more. Vienna’s old center is walkable straight from the Hauptbahnhof, plenty for one day of a different country’s architecture and coffeehouses before the evening train back to Budapest.
Is Vienna actually worth a day trip from Budapest?
Yes, mainly because the train removes the usual reason not to bother, cost and hassle. A same-day round trip booked ahead runs less than EUR 40 total and takes under 5 hours of travel for a full day in a different country’s capital. It’s a better use of a spare day than a second, slower pass through Budapest’s own sights.
Do you need to book the Vienna train in advance?
Book it, don’t wing it. The EUR 12-19 advance fares are tied to specific departures and sell down as the date approaches; walk-up tickets on the day can run close to double. There’s no requirement to book, but skipping it is the one decision on this whole itinerary that costs you real money.
The 6 real day trips from Budapest, for reference
| Day trip | One-way time | Fare |
|---|---|---|
| Danube Bend (Szentendre) | ~40 min, HEV from Batthyany ter | ~700-800 HUF |
| Eger | ~1h50min, MAV from Keleti | 3,000-4,000 HUF |
| Vienna, Austria | ~2h16-2h37min, Railjet from Keleti | EUR 12-19 advance, EUR 32+ walk-up |
| Bratislava, Slovakia | ~1h54min, train from Keleti | EUR 12 advance, EUR 40+ walk-up |
| Lake Balaton (summer only) | ~1.5-2h, train from Budapest-Deli | 1,900-3,000 HUF |
| Godollo Palace | ~30-45 min, train or HEV from Keleti/Ors vezer tere | standard suburban fare |
Carry your passport on the Vienna day, not just an ID card. It’s a Schengen border in name only, but train staff and hotel check-in both still ask for it.