May is the cheapest month to fly this route, with average fares around $204 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $204 | $147 | Best | |
| June 2026 | $209 | $125 | ||
| July 2026 | $275 | $182 | Peak | |
| August 2026 | $223 | $210 |
Departing on Wednesday offers the lowest average fares at $219. Saturday departures are the most expensive at $265, a difference of $46.
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 Barcelona is May, with average round-trip fares around $204. The lowest fare found in May is $147.
Wednesday departures are the cheapest, averaging $219 round trip. The most expensive day is Saturday at $265.
Based on current pricing trends, booking for May travel offers the best value. Avoid July if possible, as fares average $275 compared to $204 in the cheapest month. August is a solid middle-ground option at $223.
Flying in May instead of July can save you approximately $71 per round trip. The cheapest month averages $204 while the most expensive averages $275.
Airlines, flight times, price calendar, and more for Oslo to Barcelona
View OSL → BCN Details