Cheap flights from Calgary to London from C$493 YYC → LCY, LGW, LHR, LTN, SEN, STN

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was C$689 (US$483) to C$1,189 (US$834).

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 34-night return fares leaving within 3 days of 28 Jan 2027 to compare.

Every date we hold

166 fares on 7 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from C$723 (US$507).

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was C$239 (US$168) to C$493 (US$346).

At C$493 (US$346), the cheapest one-way found recently is at the high end of that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 20 Feb 2027 to compare.

Every date we hold

1 fares on 1 departure dates

Return

Fares 30 to 59 days before departure were typically 13% lower than 14 to 29 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Timing didn't matter much here — prices were about the same in every range.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Calgary to London?

The cheapest return found recently is C$764 (US$536) with Air Transat, 28 Jan 2027 to 3 Mar 2027, found 2 days ago. The cheapest return we hold, of any age, is C$723 (US$507) with WestJet, 27 Jan 2027 to 3 Mar 2027, found 7 days ago. The cheapest return fare on each of 7 departure dates is usually C$770 (US$540) to C$1,009 (US$708).

How much is a one-way flight from Calgary to London?

The cheapest one-way found recently is C$493 (US$346) with WestJet, 20 Feb 2027, found 3 days ago.

What is the cheapest month to fly from Calgary to London?

January 2027 is the cheapest month for a return, from C$723 (US$507), 27 Jan 2027 to 3 Mar 2027, found 7 days ago.

How far ahead should I book a flight from Calgary to London?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 13% lower than 14 to 29 days before departure. One-way fares cost about the same whether the flight was days or months away.

Is there a direct flight from Calgary to London?

Yes, the cheapest nonstop return found recently is C$1,114 (US$781) with WestJet, 4 Dec to 12 Dec, found 3 days ago.

How long is the flight from Calgary to London?

The cheapest one-way found recently, with WestJet on 20 Feb 2027, takes 20 h 25 min with 1 stop.

Which airlines have the cheapest flights from Calgary to London?

Between 4 Dec and 1 Mar 2027, Air Transat has the cheapest return on 3 of the 7 departure dates we hold, American Airlines on 2 and British Airways on 1.