Cheap flights from London to Oslo

October is the cheapest month on this route, once the summer crowds have gone and the fares settle down. Late autumn and the quieter weeks of January and February are usually kind to your budget too, while June, July and August bring the highest demand — Oslo is a summer city, and people head north when the days are long. Fly midweek if you can: Tuesday, Wednesday and Thursday departures tend to undercut Friday evenings and Sunday returns. Watch the school holidays in the United Kingdom and Norway, plus Christmas, New Year and Easter, when fares climb and the cheap seats go first. For summer travel, book a few weeks ahead.

Several carriers share this route, and the mix explains most of the price differences you will see. Ryanair UK, Ryanair, Norwegian, Norwegian International and Wizz Air are the low-cost names: the fare buys you a seat, and a cabin bag, a checked bag and a chosen seat cost extra. Scandinavian Airlines and British Airways sit at the full-service end, where a bag in the hold and a seat assignment are usually part of the ticket. If Air France, Finnair or Vueling Airlines show up in your results, check the routing carefully — those fares can involve a stop, and the layover adds hours to your day.

Oslo Airport is the main gateway, a short train ride north of the city, with the airport express and local trains running into Oslo Central Station, plus coaches and taxis from the terminal. Sandefjord, the smaller option, sits well to the south, so the transfer into Oslo takes a long time by coach or train — a cheap fare there can eat half your day. Whichever you land at, follow the signs rather than the first taxi rank, and check your passport and entry rules before you fly, since Norway is not in the European Union.

Currency

NOK (kr)

Power sockets

Type C, F · 230 V

Language

Sámi, Bokmål, Nynorsk, Norwegian

Emergency number

112, 110, 113

Driving side

right

Calling code

+47

Internet domain

.no

EU / Schengen

Schengen area

Population of Oslo

718 k (2024)

Time zone

UTC+01 (Europe/Oslo)

Country facts: Wikidata

• Decide which London airport you are leaving from, because Heathrow, Gatwick, Stansted, Luton and London City are far apart and the cross-town transfer can cost more than the fare difference.
• Check whether your fare is nonstop or routes through another hub, and add the connection time to your day.
• On a low-cost ticket, price the cabin bag and the checked bag before you compare totals.
• If you book two separate tickets, leave a long gap in case the first flight runs late.
• Check your passport validity and the entry rules for Norway, which sits outside the European Union.
• Look at the price calendar before you fix a date, since October is usually the cheapest month.