Cheap Flights from Ottawa to London
Browse current best options from Ottawa. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Ottawa
RatePunk searches hundreds of travel sites at once for deals on flights to London
Prices updated 7 days ago
482 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Oct 26, 2026.)
Today’s best flight deals from Ottawa to London
Explore current cheapest deals departing from Ottawa to London
2027-04-13 – 2027-04-27
YOW - London
81% AI deal score
CA$1,145
CA$935
Round trip
2027-04-13 – 2027-04-20
YOW - London
81% AI deal score
CA$1,155
CA$935
Round trip
2027-04-14 – 2027-04-21
YOW - London
81% AI deal score
CA$1,159
CA$935
Round trip
2027-04-05 – 2027-04-23
YOW - London
80% AI deal score
CA$1,085
CA$936
Round trip
2027-04-13 – 2027-04-24
YOW - London
81% AI deal score
CA$1,152
CA$943
Round trip
2027-04-18 – 2027-04-28
YOW - London
81% AI deal score
CA$1,149
CA$943
Round trip
2027-04-18 – 2027-04-24
YOW - London
81% AI deal score
CA$1,156
CA$943
Round trip
2027-04-12 – 2027-04-18
YOW - London
81% AI deal score
CA$1,148
CA$943
Round trip
2027-04-05 – 2027-04-16
YOW - London
80% AI deal score
CA$1,109
CA$943
Round trip
2027-04-12 – 2027-04-16
YOW - London
81% AI deal score
CA$1,178
CA$944
Round trip