On your own: Brussels → London
For a trip of about 18 days in November 2026, the best price we have seen is $721 CAD for Montreal → Brussels, plus $594 CAD for London → Montreal, $1315 CAD in total.
That is $566 CAD more than the round trip to Brussels: the price of adventure, with no retracing your steps.
By road, expect about 432 km (about 5 h of driving) between Brussels and London.
Open jaw or round trip?
A round trip brings you back to where you landed; the open jaw has you travel between the two cities.
Open jaw or round trip, month by month: Brussels and London
In our scans, the open jaw between Brussels and London costs $532 more on average (68%) than the best round trip to either city. The gap is smallest in December ($387 more): it is the price of landing in one city and flying home from another.
| Month | Open jaw | Brussels round trip | London round trip | Versus best round trip |
|---|---|---|---|---|
| November | $1315 | $749 | $923 | $566 more |
| December | $1342 | $955 | $991 | $387 more |
| January | $1319 | $762 | $837 | $557 more |
| February | $1319 | $762 | $837 | $557 more |
| March | $1319 | $762 | $938 | $557 more |
| April | $1319 | $752 | $880 | $567 more |
For each month: the best open-jaw price (two one-way flights, stays of 18 to 18 days) and the best round trip to each of the two cities (stays of 14 to 22 days, depending on the lengths we scan). Only our latest scans are used.
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Frequently asked questions: Brussels → London
What is an open-jaw flight?
An open-jaw (or multi-city) flight arrives in one city and leaves from another. Here you arrive in Brussels and fly home from London instead of returning to where you landed.
How much is a flight from Montreal into Brussels, home from London?
For about 18 days, the best price we have seen is $1315 CAD: $721 CAD to fly into Brussels and $594 CAD to fly home from London.
Is it cheaper than a round trip to Brussels or London?
That is $566 CAD more than the round trip to Brussels: the price of adventure, with no retracing your steps.
How do I get from Brussels to London?
By road it is about 432 km (about 5 h of driving) from Brussels to London. Train, bus or a rental car are the usual options; that cost is not included in the prices shown.
Are these prices guaranteed?
No. They are the best prices from our latest scan and they change often. Check the final price on Google Flights before you book.