Find the exact window to book your Copenhagen flight for the lowest price — based on real transatlantic pricing patterns, not guesswork.
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Copenhagen Airport (CPH) has reliable nonstop service from the US, with direct flights from JFK, EWR, and ORD on SAS (Scandinavian Airlines) and United. Flight times run about 8.5 hours eastbound. As with most Scandinavian routes, there's no dedicated low-cost carrier flying nonstop across the Atlantic to Copenhagen.
Summer (June–August) is by far the peak season, driven by long daylight hours and mild weather — Copenhagen's famously short, dark winter days make it a much less popular, and much cheaper, destination October through March. Shoulder months — May and September — offer a good compromise: decent weather without the summer price premium.
Without a true budget transatlantic carrier on this route, "budget" fares to Copenhagen just mean the cheapest economy class SAS or United have released. These sell out earliest during the June–August peak, so booking 3–5 weeks out is your best bet for catching them; 4–6 weeks out tends to be the sweet spot for better economy and premium fares before prices climb closer to departure.
4–6 weeks out on full-service carriers, or 3–5 weeks out for the lowest discounted economy fares. Copenhagen has no dedicated budget transatlantic carrier, so the cheapest SAS and United seats go fastest during summer.
October through March is consistently cheapest and quietest, thanks to short, dark days that keep tourist demand low. Summer is by far the most expensive season; May and September are a good middle ground.
There's no dedicated low-cost carrier on this route — it comes down to which fare class SAS or United has released. Booking 4–6 weeks out generally beats waiting until the last minute.
US citizens can currently visit visa-free for up to 90 days in the Schengen area. The EU's ETIAS travel authorization has been rolling out — check the current requirement close to your travel date.