Cheapest one-way flights from Ottawa (YOW) to London (LGW), December

8 dates in December, from $ 373. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
4 Dec Porter Airlines (Canada) Ltd
5 Dec Porter Airlines (Canada) Ltd
3 Dec WestJet
30 Dec Porter Airlines (Canada) Ltd
7 Dec Air Transat
24 Dec Air Transat
25 Dec Air Transat
23 Dec Porter Airlines (Canada) Ltd
Powered by

Cheapest deals for the full year

Deals for return flights from Ottawa to London in December.

Book a cheap hotel in London

Cheap car rent in Gatwick

Updated Oct 14, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.