Fly from Boston to Oslo for $351 roundtrip on Icelandair.
Searching Icelandair, we found seats departing BOS on Wednesday, October 17 returning from OSL on Wednesday, October 24. Flights connect via Keflavík KEF.
This is Icelandair's Economy Light, which includes one carry-on, and a 3 night stopover in Iceland. If you'd like a stopover to up to 7 days, and a checked bag, upgrade to their Standard Ecoomy for $451 total.
Other dates are also available for travel through mid December, with fares just a few dollars more for travel in 2019.
See our fare details for booking info.
Need a room in Oslo? Here's a look at what's available for the above dates on Hotelwatchdog.