AirHint found the following cheapest return flights from Baltimore (BWI) to Oslo (OSL) in May 2026 (see full year).
Return flights
| 31 May - 06 Jun | Icelandair | ||
| 21 May - 27 May | Icelandair | ||
| 21 May - 07 Jun | Icelandair | ||
| 22 May - 27 May | Delta | ||
| 22 May - 31 May | British Airways |
Also check the deals for one-way flights from Baltimore to Oslo in May.
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