Cheap flights from Oslo to London

School holidays, Christmas and London's summer are the periods that most often pressure fares and seats on a route like this, so those dates are worth booking early. December is the cheapest month shown, although Christmas departures within it can cost more than the monthly pattern implies. Midweek flights are often easier to find than weekend flights, and early-morning or late-evening departures can undercut prime-time ones. Use the full-year price calendar to compare dates just before or after school breaks and public holidays in Norway and the United Kingdom.

Ryanair, Ryanair UK, Wizz Air and Norwegian are the carriers most associated with low base fares and paid extras, while British Airways, Scandinavian Airlines and LOT Polish Airlines usually include more in a standard ticket. Norwegian International, Cityjet and TUI Airways also appear on the route, so check cabin baggage, changes and seat rules for each fare. Direct flights operate between the cities, but some itineraries connect through another airport; compare the connection, airport change and baggage handling before treating two separate tickets as one journey.

London City is the smallest airport among the London options and the quickest transfer into central London by Docklands Light Railway; Heathrow is large, with Underground and rail links and longer walks between terminals. Gatwick, Stansted and Luton lie outside the centre and depend on trains or coaches, so allow for transfer time when comparing fares. London City suits short city stays, while the outlying airports can work if the final address is near a rail line. Check terminal, late-night transport and whether a hotel near one airport saves more time than a cheaper flight from another.

Currency

GBP (£)

Power sockets

Type G · 230 V

Language

English

Emergency number

112, 999

Calling code

+44

Internet domain

.uk

Population of London

8.8 M (2021)

Time zone

UTC+00 (Europe/London)

Country facts: Wikidata

• Check passport validity, UK entry rules and any transit requirements before booking, because these can change by nationality.
• Confirm whether the ticket departs from Oslo Airport or Sandefjord and how you will reach that airport.
• Check which London airport is named on the ticket and the onward journey to your stay.
• Compare baggage, seat and change rules across the named carriers before assuming the lowest fare is cheapest.
• Check connection times and ticket protection if the itinerary is not a single through-ticket.
• Look at dates around December and school holidays, not only the cheapest month, before locking in travel.