Flight prices from London Heathrow to Sarnia

There’s no fixed price — fares between London and Sarnia can vary a lot by day or time.

Choose a date to explore the best fares now.

The lowest fares are often found with some flexibility in travel dates. If your plans are flexible, you’ll have a better chance of finding cheap flights.

Are there multiple airports in London and Sarnia?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

• Airports in London: 6 airports are active in London - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
• Airports in Sarnia: Sarnia is the only airport currently running.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Find flights from London Heathrow to Sarnia that suit your schedule

Use Jetcost to sort and filter results based on your preferred flight time, number of stops, price range, or airline. View deals from the best airlines and travel agencies.

Other popular destinations

Interested in Canada? These cities are also in demand: Calgary, Montreal, Quebec, Toronto, Vancouver.

Connecting flights can be cheaper but often mean longer layovers. You can easily select either direct or connecting flights with a single click using the filters.