cached prices · United States fares · USD

Flights from Ottawa (YOW) to London (LGW)

The cheapest one-way fare from Ottawa to London we have seen is $361 USD, departing Nov 2 (found Sep 19): WestJet WS 611, 2 stops, 29h30m.

These are the fares the seller shows on its United States site, in USD; prices where you live may differ.

See more dates →

Prices are the cached fare only; baggage and fare rules are shown by the seller.

about this route

Ottawa to London in numbers

By month, Nov 2026 is the cheapest we hold at $361 USD and Oct 2026 the most expensive at $368 USD — a spread of 2%.

Nonstop fares are held for 1 of the 8 departure dates seen; carriers seen: British Airways, Porter, Air Transat, WestJet.

YOW serves Ottawa, Canada; LGW serves London, United Kingdom.

London runs 5 hours ahead of Ottawa.

by month

Cheapest by month

  • Oct 2026

    $368 USD

    checked Sep 25

  • Nov 2026

    $361 USD

    checked Sep 25

by date

Cheapest one-way by date

9 rows held, cheapest first — the cheapest nonstop and the cheapest with stops seen for each departure date.

  • Nov 2 · 06:10 YOW

    WS6112 stops · 29h30m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $361 USD

    Continue on the seller's site — $361

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Nov 3 · 06:10 YOW

    WS6112 stops · 29h30m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $363 USD

    Continue on the seller's site — $363

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Oct 16 · 16:00 YOW

    BA41713 stops · 21h55m

    found Sep 25 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $368 USD

    Continue on the seller's site — $368

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Nov 8 · 06:10 YOW

    WS6112 stops · 29h30m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $385 USD

    Continue on the seller's site — $385

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Nov 7 · 07:00 YOW

    PD1502 stops · 21h50m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $406 USD

    Continue on the seller's site — $406

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Nov 4 · 07:00 YOW

    PD1502 stops · 27h05m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $416 USD

    Continue on the seller's site — $416

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Nov 5 · 12:45 YOW

    PD21582 stops · 25h45m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $458 USD

    Continue on the seller's site — $458

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Nov 1 · 17:40 YOW

    PD21623 stops · 21h55m

    found Sep 19 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $486 USD

    Continue on the seller's site — $486

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

  • Oct 16 · 19:40 YOW

    TS382Nonstop · 7h15m

    found Sep 25 · baggage and fare rules are shown by the seller — this price is the cached fare only

    $547 USD

    Continue on the seller's site — $547

    a2bflight may earn a commission from the seller if you book after this click; the price you see is the seller's and does not change. How we rank, what we keep.

carriers

Carriers seen on this corridor

  • British Airways
  • Porter
  • Air Transat
  • WestJet

Marketing carriers; the operating airline is shown by the seller.

questions

Questions

What is the cheapest fare from Ottawa to London?
The cheapest one-way fare from Ottawa to London we have seen is $361 USD, departing Nov 2 (found Sep 19): WestJet WS 611, 2 stops, 29h30m.
Is there a nonstop flight from Ottawa to London?
Nonstop fares are held for 1 of the 8 departure dates seen; carriers seen: British Airways, Porter, Air Transat, WestJet.
Which month is cheapest to fly from Ottawa to London?
By month, Nov 2026 is the cheapest we hold at $361 USD and Oct 2026 the most expensive at $368 USD — a spread of 2%.
How old is this price?
It is the cheapest fare we saw for that date. We look again at least once a day for the routes people search, and stop showing a price two days after we last saw it, so a price here can be up to four days old — the date beside it says when that was. The seller's page shows the price right now.
How does a2bflight rank results?
By price and duration only; commission never enters the order. Cheapest means cheapest among what the store holds for this corridor. A click that books may earn a2bflight a commission from the seller; the price you see is the seller's own. See how we rank and what we keep.

more routes

Related routes

Return: Flights from London (LGW) to Ottawa (YOW) →Every route from Ottawa →Every route to London →

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