Cheap Flights from Mexico City to London
Round-trip economy fares between Mexico City (MEX) and London (LHR) average A$1,016 across the year. Book for January and typical prices fall to A$833. The 8,904 km hop takes about 11.1 hours non-stop, and the nicest window to visit London is May – September.
Today's tracked low
A$775 −7% vs. seasonal low
Not flying from Mexico City? See London deals from your nearest hub.
When is the cheapest time to fly from Mexico City to London?
Average round-trip economy fare by departure month. January is the statistical sweet spot at A$833.
| Month | Avg. round-trip | vs. yearly average |
|---|---|---|
| January Cheapest | A$833 | −A$183 |
| February | A$853 | −A$163 |
| March | A$955 | −A$61 |
| April | A$1,036 | +A$20 |
| May | A$1,118 | +A$102 |
| June | A$1,219 | +A$203 |
| July | A$1,280 | +A$264 |
| August | A$1,240 | +A$224 |
| September | A$1,057 | +A$41 |
| October | A$975 | −A$41 |
| November | A$894 | −A$122 |
| December | A$1,097 | +A$81 |
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Mexico City to London flight FAQs
- What is the cheapest month to fly from Mexico City to London?
- January is typically cheapest, with round-trips from A$833 — about A$183 under the yearly average of A$1,016.
- How long is the flight from Mexico City to London?
- Non-stop services cover the 8,904 km route in roughly 11.1 hours.
- When is the best time to visit London?
- May – September. Entry requirements: UK ETA required for visa-exempt nationals since 2025.