AirHint found the following cheapest one-way flights from Oslo (OSL) to Billund (BLL) in September 2025 (see full year).

One-Way flights

30 Sep	Wizz Air
07 Sep	Norwegian	direct
28 Sep	Norwegian	direct
20 Sep	Norwegian	direct
16 Sep	Norwegian	direct
24 Sep	Norwegian	direct
02 Sep	Norwegian	direct
15 Sep	Norwegian	direct
13 Sep	Norwegian	direct
11 Sep	Norwegian	direct

Also check the deals for return flights from Oslo to Billund in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Billund

Cheap car rent in Billund

Cheapest one-way flights from Oslo to Billund in September from 35€

One-Way flights