Large chain coffee pricing gives you a decent benchmark here
Costa Coffee at Stansted Airport runs on the same pricing logic you see across UK airports: expect to pay a clear premium over high street shops for your flat white or cappuccino. You still get the familiar menu of espresso drinks, teas, and refrigerated snacks, but a basic latte often runs notably higher than in town, and adding syrups or alternative milks pushes the total up quickly. If you just want something predictable before boarding, this hits that mark.
Food choices stay in the usual Costa lane: pre-packed sandwiches, paninis, and pastries in the chiller or on the counter. A standard ham-and-cheese panini or tomato-and-mozzarella option tends to come in at typical airport prices, often around what you’d see from other UK coffee chains airside. Portions are modest, so if you’re genuinely hungry before a longer flight, you may want to double up with a pastry or a packet of crisps to avoid needing a second stop.
Costa’s strength is speed. Multiple tills and a straightforward menu keep queues moving quicker than some of the full-service spots at Stansted, especially during the early morning bank of departures. Ordering a simple Americano or black coffee is usually fastest; complicated iced drinks or anything requiring heating can slow things down. If time is tight, stick to a plain hot drink and a cold item from the fridge so you’re not waiting for the panini press when your gate call appears on the board.
Final tip: check the board for your gate number before joining a long Costa line. Stansted’s gate clusters often involve a 10–15 minute walk from the main departures area, and boarding sometimes starts earlier than you’d expect. Grab your coffee only once you know whether your gate is nearby or out in the satellite piers, so your drink doesn’t turn into a rushed carry-on hazard en route.