British Airways Flights from Chicago to Athens

British Airways on this route

British Airways serves CHI–ATH through its hub network, usually with one connection. The nonstop flight time is about 11h 4m.

Fare classes available: Economy Basic, Economy Standard / Plus, World Traveller Plus, Club World / First. Economy Basic fares cannot be changed. Standard fares change for a fee plus fare difference; Plus and premium fares have lower or no fees.

Recorded lows on CHI–ATH start at $315 one-way. That figure comes from cached search data and moves with demand, so treat it as a benchmark for what a good price looks like rather than a guaranteed fare.

Delta Air Lines and United Airlines both operate hubs at one end of this route, so nonstop or single-connection service is usually available, along with American Airlines, Southwest Airlines, and British Airways. Our agents can book any of them and compare fare classes side by side.

Covering 5,450 miles, the flight runs around 11h 4m nonstop. On sectors this long, one-stop itineraries through a hub are often priced well below the nonstop and add only a few hours; the agent will show both.

When to fly

For long-haul travel, mid-January to March and the shoulder months of October and November usually bring the lowest fares; June through August and the December holidays cost the most.

On this specific route our fare history shows December as the cheapest month and June as the most expensive, a spread of $626 between the two.

Midweek travel almost always beats weekends on price here. If your dates are flexible by a day or two, tell the agent; shifting a Friday departure to Thursday or a Sunday return to Monday is the single most reliable way to cut the fare.

For international travel, booking two to five months ahead usually gets the best fares; inside three weeks, prices rise sharply. Peak-season travel in summer and over the December holidays should be booked as early as possible.