$1,091 Cheap Flights from Southampton (SOU) to Mexico City (MEX)

View $1,091 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Southampton (SOU) to Benito Juarez International Airport (MEX)

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Cheap Flights from Southampton to Mexico City (SOU-MEX)

Prices were available within the past 7 days and start at $1,091 for one-way flights and $1,829 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,829 Roundtrip, found 2 days ago
$1,829
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,829 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,835 Roundtrip, found 2 days ago
$1,835
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,835 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,840 Roundtrip, found 2 days ago
$1,840
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,840 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,846 Roundtrip, found 2 days ago
$1,846
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,846 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,884 Roundtrip, found 2 days ago
$1,884
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,884 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,913 Roundtrip, found 2 days ago
$1,913
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,913 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,919 Roundtrip, found 2 days ago
$1,919
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,919 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,942 Roundtrip, found 2 days ago
$1,942
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,942 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 8
SOU
Southampton
MEX
Mexico City
$1,953 Roundtrip, found 2 days ago
$1,953
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jul 1 from Southampton to Mexico City, returning Wed, Jul 8, priced at $1,953 found 2 days ago
Aer Lingus
Sat, Oct 11 - Sat, Oct 18
SOU
Southampton
MEX
Mexico City
$1,978 Roundtrip, found 3 days ago
$1,978
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Sat, Oct 11 from Southampton to Mexico City, returning Sat, Oct 18, priced at $1,978 found 3 days ago
Flights from Southampton (SOU) to Mexico City (MEX)
Origin airport
Southampton
Destination airport
Mexico City Intl.
Roundtrip price
$1,829
Distance
5507 mi

Southampton to Mexico City Flights

The cheapest times to fly from Southampton to Mexico City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Southampton to Mexico City are during the month of July. You can find some of the cheapest flights from Southampton to Mexico City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Southampton to Mexico City

Sunday is one of the best days to book for cheap flights from Southampton to Mexico City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Southampton to Mexico City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Southampton to Mexico City in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,091 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Southampton to Mexico City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Southampton to Mexico City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX) cost?
Secure a cheap one-way flight from $1,091 or cheap return flight from $1,829 from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX)?
July is the most affordable month to fly from SOU to MEX. Planning your trip for the off-season is often the key to better flight prices.
Which airlines fly direct from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX)?
You can't fly nonstop to Mexico City Intl. Airport (MEX) from Southampton (SOU). However, you can seamlessly travel to Mexico City without any layovers by leaving from Heathrow Airport (LHR).
What is the cheapest airline that flies from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from SOU to MEX. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX)?
You'll have to hop on a flight with a layover if you're traveling from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from SOU to MEX?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX)?
To touch down at Mexico City Intl. Airport (MEX) without delays, opt for a flight that leaves Southampton Airport (SOU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX) last-minute?
Booking your ticket from SOU to MEX shortly before your getaway is usually more expensive. However, if there's some wiggle room with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a SOU to MEX flight and hotel package?
You'll typically save money by securing a SOU to MEX flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your preferred accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Southampton Airport (SOU) to Mexico City Intl. Airport (MEX)?
Typically, you can reschedule or cancel your SOU to MEX flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, go to our Customer Service portal.

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*Available to One Key members.