$313 Find Cheap Flights from Ottawa to London - Compare and Save

Among airlines operating Ottawa to London Heathrow Airport flights:

• Air Canada: offers extra legroom; offers free seat selection
• Lufthansa: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Air Canada operates flights between Ottawa and London Heathrow Airport.

Flights from Ottawa to London Heathrow Airport usually depart from Ottawa (YOW) and arrive at London Heathrow (LHR).

Here are some options for this route, based on selected ticket types and cabin classes:

• Air Canada: a cabin bag and a checked bag in Economy Class
• Lufthansa: a cabin bag and a checked bag in Economy Class
• Austrian Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from Ottawa to London Heathrow Airport:

• Economy Class
• Premium Economy Class
• Business Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $776 round-trip via Montreal Pierre Elliott Trudeau Intl (YUL), compared to $815 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $75–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A330-300 family is used most often on this route, operated mainly by Austrian Airlines and Air Canada. Other aircraft seen on the route include Airbus A321neo variants.

One-stop flights from Ottawa to London Heathrow Airport most commonly connect through:

• Montreal Pierre Elliott Trudeau Intl (YUL) - 29% of one-stop connections
• Paris Charles de Gaulle (CDG) - 29% of one-stop connections
• Toronto Pearson Intl (YYZ) - 28% of one-stop connections
• Halifax Intl (YHZ) - 7% of one-stop connections

Montreal Pierre Elliott Trudeau Intl (YUL) handles the largest share of one-stop connections on this route.

On the Ottawa to London Heathrow Airport route, being flexible with your departure day can save you up to 10%. Sunday is the cheapest day at $753 round-trip on average, while Saturday is the most expensive at $828: a $75 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Ottawa to London Heathrow Airport route, 32% of flights were delayed in the past 3 months, with delays averaging 2 hours 22 minutes.

Some of the most popular sights in London Heathrow Airport are Hyde Park, Buckingham Palace and Trafalgar Square. These are among the most viewed places in London Heathrow Airport on KAYAK.

These are the earliest and latest flight times available from Ottawa to London Heathrow Airport:

• Earliest: departs at 6:50 pm and lands at 1:28 am
• Latest: departs at 10:40 pm and lands at 5:18 am.

The flight takes about 6h 38m.

Last-minute fares on this route - booked within 2 weeks of departure - run 2% above the route average of $779. Book 7 weeks before departure for the lowest fares.

A nonstop flight from Ottawa to London Heathrow Airport takes 6h 38m, covering 3,320 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $640 to $4,605. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Ottawa to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $587, which is 17% below the typical average for this route.

Air Canada is the only airline operating Ottawa to London Heathrow Airport flights. 68% of its flights are on time.

Evening flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 10h 34m, compared with 11h 01m via Paris Charles de Gaulle (CDG) and 11h 11m via Halifax Intl (YHZ).

London Heathrow Airport is 5 hours ahead of Ottawa (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Round-trip flights from Ottawa to London Heathrow Airport range from $690 to $904, with an average of $779 over the past 12 months. Anything below $690 counts as a good deal.

Two airlines offer in-flight Wi-Fi on Ottawa to London Heathrow Airport flights:

• Air Canada
• Lufthansa

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.