These prices come courtesy of WOW Air, a budget airline out of Iceland, which means all of these flights will be stopping over in Reykjavik. (If you can swing it, try some fermented shark meat.) Don't expect the royal treatment, and do expect to pay for anything beyond a single personal item (one carry-on bag will run you $80), but this deal is worth sacrificing a few turtlenecks. If you plan on doing any shopping abroad, plan on doing some shipping too.
All of these prices are highly dependent upon the day you're flying out, and leaving on Wednesday vs. Friday could mean hundreds of dollars in ticket prices. It's definitely worth looking at a few days around the dates suggested above to find the timing that's best for you. After that, start evaluating your PTO, text your travel buddy, and get over there.
H/t The Points Guy