Chicago (ORD) → Copenhagen (CPH): cheap fares overview
Chicago to Copenhagen is one of those transatlantic routes where timing matters more than almost anything else. SK operates the only true nonstop, covering 6,853 km in just over eight hours, which means when that flight gets expensive, your options are either pay up or connect through somewhere like Amsterdam, Frankfurt, or Reykjavik and add two-plus hours. Fares tend to bottom out in late January through March, spike hard from mid-June through August when both American families and Danish summer holidays overlap, then soften again in September. Business traffic between these two cities keeps midweek fares artificially high year-round, so weekend departures often undercut Monday and Tuesday by a meaningful margin.
Why travel from Chicago to Copenhagen?
Denmark pulls American travelers for reasons that go well beyond a quick city break. Chicago has a substantial Scandinavian-American community, so plenty of people on this route are visiting family they actually know. Beyond that, Copenhagen has become a serious food destination — not just Noma's legacy, but an entire ecosystem of restaurants doing something genuinely different from what you find in any American city. Design obsessives make the trip specifically to see how Danes actually live. Cyclists come to study the infrastructure. Architecture fans come for the housing. Then there's the business angle — Denmark's clean energy and pharmaceutical sectors draw a steady stream of corporate travelers from the Midwest. Copenhagen's 200 nonstop destinations also make it a smart hub if Scandinavia is just your first stop.
How to find a cheap fare on this route
Book this route at least eight to ten weeks out for summer travel — waiting kills you here because SK's nonstop inventory tightens fast. For the best fares, target February departures or the shoulder window between late September and late October. On the Chicago end, ORD's 282 nonstop destinations mean connecting through a European hub on a separate ticket is genuinely viable — sometimes flying ORD to Reykjavik on one booking, then Reykjavik to CPH separately, saves real money. Always check a full month's price calendar rather than locking onto specific dates. If you hold transferable credit card points, this route prices well in SAS EuroBonus or Star Alliance partner programs depending on availability.
Frequently asked questions
What is the cheapest month to fly from Chicago to Copenhagen?
Typically, shoulder seasons like April-May and September-October offer the best prices, while summer (June-August) and December holidays are peak and more expensive. Winter months (January-February) can also be economical if you're flexible with travel dates.
How far in advance should I book a flight from Chicago to Copenhagen to get the best deal?
Generally, booking 2-3 months in advance provides good savings, though deals can vary significantly based on demand and airline sales. Setting up price alerts 3-4 months before your desired travel date helps you catch the best opportunities.
Should I book a direct flight or consider connecting flights from Chicago to Copenhagen?
Direct flights (around 8 hours 4 minutes with SK) are more convenient and minimize fatigue, though connecting flights may sometimes offer lower fares depending on the route and timing. The trade-off is worth evaluating based on your budget and how much travel time you're willing to endure.
What should I know about currency and payment when booking flights from the USA to Denmark?
Most airlines accept US credit cards and will display prices in USD, though you may see better rates if you pay in EUR or DKK depending on exchange rates. Be aware that your US bank may charge foreign transaction fees, so checking with your bank beforehand is recommended.
What should I know before booking a Chicago to Copenhagen flight?
Check visa requirements (US citizens get 90 days visa-free in the Schengen area), verify your passport validity (must be valid for 6 months beyond travel), and confirm baggage allowances with SK before booking. Also consider purchasing travel insurance early, as it's often cheaper when bought within days of your initial flight booking.