May is the cheapest month to fly this route, with average fares around $96 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $96 | $46 | Best | |
| June 2026 | $106 | $35 | ||
| July 2026 | $137 | $93 | Peak | |
| August 2026 | $99 | $82 |
Departing on Tuesday offers the lowest average fares at $89. Sunday departures are the most expensive at $141, a difference of $52.
The best time to fly is May. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Oslo to London is May, with average round-trip fares around $96. The lowest fare found in May is $46.
Tuesday departures are the cheapest, averaging $89 round trip. The most expensive day is Sunday at $141.
Based on current pricing trends, booking for May travel offers the best value. Avoid July if possible, as fares average $137 compared to $96 in the cheapest month. June is a solid middle-ground option at $106.
Flying in May instead of July can save you approximately $41 per round trip. The cheapest month averages $96 while the most expensive averages $137.
Airlines, flight times, price calendar, and more for Oslo to London
View OSL → LHR Details