WOW Air has pre-summer discount tickets from Los Angeles and San Francisco to Iceland as low as $266 round trip for travel in May. Tickets departing late May and returning in June are as low $316 round trip. Several other cities like London, Amsterdam, Dublin are about $30 to $50 more each way.
Reykjavik, Iceland in early June means over 20 hours of sun.
Basic economy only includes one personal item (17x13x10in). WOW has raised the price for a bundled economy fare to $95 outbound and $105 inbound, but you can buy just a standard size carry-on bag for $50 each way or a checked bag for $70 each way.
I have traveled to Europe in winter for 10 days flying WOW on a $70 one way ticket to Copenhagen with only one personal item, but it is a challenge to pack that small.
Loyalty Traveler – WOW Air now allows free 22 lb. carry-on bag, but can you pack that small?
Loyalty Traveler – Winter travel in Europe packing light
WOW Air SFO – Reykjavik KEF – SFO