[Nonstop] Calgary to London flights for $642 - Mar 2026

If London has been on your list, this is a great moment to book: WestJet has nonstop roundtrip flights from Calgary to London for as low as $642 in March 2026. For a direct transatlantic route, that’s a great price that makes a spring getaway feel surprisingly doable. Note that these fares do include a carry-on even at that price.

Deal Highlights

Example Departure Dates

These are some sample dates we found at this price:

• March 2-6
• March 2-13
• March 10-17

View all Calgary to London flights →

Prices and availability can change quickly, so we recommend booking soon if these dates work for your schedule.

About London

London is special for its mix of royal history, world-class museums, and lively neighborhoods where centuries-old landmarks sit beside cutting-edge food and theater. In March, the city starts to shake off winter, making it a great time to explore without peak-season crowds.

Expect cool, changeable weather, typically around 5–12°C (41–54°F), with a mix of cloud cover, breezes, and light rain—pack a warm layer and a waterproof jacket. Spend a day between the British Museum and the National Gallery, then catch a West End show or take a Thames walk past Westminster and Tower Bridge. Plenty of dates are available in March at $654 as well.

How to Book

1. View all Calgary to London flights we found on MintFlying to see current prices
2. Consider using WestJet Dollars if you have them when booking directly with WestJet.

Tips for This Route

• WestJet’s Calgary–London nonstop is typically an overnight “red-eye,” so eat in YYC and then ask for your meal as soon as service starts (or skip it) to maximize sleep.
• March in London is damp and changeable: pack a compact umbrella and a thin waterproof layer in your personal item, because you’ll often step straight from the airport into drizzle and chilly wind.
• In the UK, tap-to-pay is everywhere (including the Tube/Elizabeth line), tipping is modest (often 10–12.5% if not already added), and those March $654 dates can sell fast once school-break demand spikes.

Prices were found at time of posting and are subject to change. Always verify current prices before booking.

Happy travels! ✈️