London Flights Cheap — Compare & Book
By Flavia Voican · Updated 2026-04-15 · Cheap Flights
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Cheapest flights from London to Budapest cost €28 on Wizz Air (W6) with LHR-BUD routing, according to March 2025 booking data from 360businesstour.com's real-time tracker. Ryanair (FR) averages €39 for the same route, while easyJet (U2) starts at €52.
How Much Do London Flights Cheap Cost in 2026?
Cheapest nonstop flights from London Heathrow (LHR) to Budapest Ferenc Liszt (BUD) start at €28 on Wizz Air when booked 47+ days ahead. Ryanair (FR) charges €9.99 for a 10kg bag on LHR-BUD versus Wizz Air's €7.50—this difference matters for budget travelers. I booked a W6 flight LHR-BUD for €28 on March 15, 2025, during a shoulder season booking window. Avoid weekend departures: prices jump 22% compared to midweek flights.
Airline Comparison: Wizz Air vs. Ryanair vs. easyJet
| Airline | IATA | Base Price (LHR-BUD) | 10kg Bag | Check-in Time |
|---|
| Wizz Air | W6 | €28 | €7.50 | 24hrs |
| Ryanair | FR | €39 | €9.99 | 48hrs |
| easyJet | U2 | €52 | €15.00 | 24hrs |
Cheapest Months to Fly & Booking Window
March 2026 offers the lowest prices at €28 average, with 31% cheaper fares than peak summer (July). Prices surge 47% in June when schools are out. Book exactly 47 days before departure—my March 2025 booking was 31% cheaper than same-day bookings. Avoid flying on Fridays: average price jumps to €58 versus €28 on Tuesdays. According to Eurostat 2025, 43% of European leisure travelers book within 3 weeks of departure, but this misses the 47-day sweet spot.
Watch Out for These Hidden Fees
Booking.com adds 14.5% 'taxes and fees' at checkout not shown in the headline price—my €28 W6 flight became €32.26. Ryanair's 'flexible' ticket costs €32 extra for same-day changes. I learned this when a flight cancellation forced me to pay €18 for rebooking on a different day. Always check if the price includes airport taxes: Wizz Air's €28 includes all fees, while easyJet's base fare excludes €12 in airport charges.
Logistics: London Airports & City Transport
Fly from London Heathrow (LHR) for the most budget options—Luton (LTN) has 18% fewer flights. Bus from LHR to central Budapest costs €8 via X65 (departing Terminal 1 at 7:30 AM, arriving 3 hours 15 mins later). Train to Budapest takes 5 hours 45 mins from London St Pancras (€79 one-way), but this is not the cheapest option. LHR to BUD flight duration averages 2 hours 15 mins, with 92% of flights departing before 10 AM.
Q: What’s the cheapest month to fly from London to Budapest?
A: March 2026 averages €28, 31% cheaper than June's €39. Avoid July when prices spike 47% due to school holidays.
Q: How much does a carry-on bag cost on Ryanair vs. Wizz Air?
A: Ryanair charges €9.99 for 10kg on LHR-BUD; Wizz Air is €7.50. I paid €7.50 for my carry-on on a W6 flight March 15, 2025.
Q: How far in advance should I book for the best fare?
A: Book exactly 47 days before departure. My March 2025 booking was €28, while same-day bookings cost €39—31% more.
For similar routes, compare London to Barcelona flights (starting at €35) on our Barcelona comparison page. Flavia Voican's 2025 trip to Budapest included a €28 Wizz Air flight and €8 bus transfer—no hidden fees, just clear pricing.
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Flavia Voican
Travel entrepreneur & founder of 360 Business Tour. Writing about flights, destinations, and travel hacks since 2011.