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Cheap flights from Portsmouth to Mexico City from £572

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MEX
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Mexico City

Keep the following information in mind while searching for Portsmouth to Mexico City flight deals. Data was last updated 24 October 2025.

Round-trip from

£853

One-way from

£572

Popular in

July

Cheapest in

September

Average price

£751
5/12-12/12
  • 5/12-12/12
  • 3 total stops
  • 60h 55m total
  • Portsmouth to Mexico City
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5/12
  • 5/12
  • 1 total stop
  • 18h 50m total
  • Portsmouth to Mexico City
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Portsmouth to Mexico City

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Mexico City
Explore the most affordable flight options available from Portsmouth to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 October 2025.

Fri 5/1214:25SOU - MEX
1 stop18h 50mMultiple Airlines
Fri 12/1208:40MEX - SOU
2 stops42h 05mMultiple Airlines
Deal found 23/10£853
Fri 5/1208:40SOU - MEX
1 stop17h 00mKLM
Fri 12/1221:50MEX - SOU
1 stop13h 10mKLM
Deal found 23/10£940
Fri 7/1108:40SOU - MEX
2 stops34h 10mDelta
Sun 30/1114:10MEX - SOU
2 stops36h 00mDelta
Deal found 23/10£1,010
Fri 7/1117:30SOU - MEX
2 stops31h 50mDelta
Fri 5/1216:35MEX - SOU
2 stops34h 15mDelta
Deal found 23/10£1,040
Tue 4/1112:25SOU - MEX
3 stops45h 55mMultiple Airlines
Tue 2/1219:55MEX - SOU
3 stops30h 50mMultiple Airlines
Deal found 23/10£1,209

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Mexico City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 October 2025.
Use the filters below to find and compare flights from Portsmouth to Mexico City that are best for you.

Fly from

Portsmouth

Fly to

Mexico City

Route

Depart

Return

Price

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Thu 12/3

08:50-19:40

1 stop16h 50m

Mexico City Benito Juarez

Mon 16/3

13:15-17:00

2 stops21h 45m

£883

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Thu 12/3

08:50-19:50

2 stops41h 00m

Mexico City Benito Juarez

Mon 16/3

08:40-08:05

2 stops17h 25m

£900

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Thu 12/3

08:50-19:40

1 stop16h 50m

Mexico City Benito Juarez

Mon 16/3

21:50-08:10

1 stop28h 20m

£901

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Fri 5/12

14:25-03:15

1 stop18h 50m

Mexico City Benito Juarez

Thu 11/12

00:40-14:45

3 stops32h 05m

£927

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Fri 5/12

08:40-19:40

1 stop17h 00m

Mexico City Benito Juarez

Fri 12/12

21:50-17:00

1 stop13h 10m

£940

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Fri 5/12

14:25-03:15

1 stop18h 50m

£572

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Best time to book a flight from Portsmouth to Mexico City

Have a flexible travel schedule? Discover the best time to fly to Mexico City from Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Mexico City

What is the cheapest month to book a flight from Portsmouth to Mexico City?

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Mexico City (average of £298). Flying from Portsmouth to Mexico City in July is currently the most expensive (average of £667). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from P0R to MEX?

Find hourly flight availability from Portsmouth to Mexico City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 October 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 7% on flights from Portsmouth to Mexico City by exploring options for tickets in the morning.

What is the cheapest day to fly from Portsmouth to Mexico City?

Use this chart to determine the cheapest time to fly return from Portsmouth to Mexico City. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Mexico City flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Mexico City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Mexico City from Portsmouth?

    Located just 5.5 mi from the city center, Mexico City Benito Juarez is the airport most travelers will use when flying to Mexico City from Portsmouth. Booking flights from Portsmouth to Benito Juarez (MEX) should be relatively easy as there are 0 daily inbound flights from Portsmouth from 13 different airlines.

  • How long is the flight from Portsmouth to Mexico City?

    Departing from Portsmouth to Mexico City will take you 16h 50m. There are 5503 mi between Portsmouth and Mexico City. This flight may include one or multiple stops.

  • What are the most reliable airlines from Portsmouth to Mexico City?

    The top 3 most reliable airlines when flying from Portsmouth to Mexico City are Aeromexico (92%), Virgin Atlantic (92%) and EL AL (92%).

  • What are the cheapest flights from Portsmouth to Mexico City?

    While on average a flight from Portsmouth to Mexico City is generally £1,017, our data shows the cheapest flight currently is £431. When looking at the most popular route, (Southampton Eastleigh - Mexico City Benito Juarez), you can expect to pay £853 for that flight.

  • Can I find deals for flights from Portsmouth to Mexico City that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Mexico City flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Mexico City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Mexico City.

  • Can I find deals for business class flights from Portsmouth to Mexico City?

    Yes. Cheapflights offers flight deals from Portsmouth to Mexico City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portsmouth to Mexico City?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Mexico City (average of £298). Flying from Portsmouth to Mexico City in July is currently the most expensive (average of £667). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Portsmouth to Mexico City

Discover the top 10 airlines that operate flights from Portsmouth to Mexico City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 October 2025.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest£299Average£675FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
IberiaCheapest£476Average£775FlexibilityNo cancel feeOn-time77%
Search Iberia flights
DeltaCheapest£477Average£732FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£494Average£663FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£512Average£625FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£544Average£760FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
AviancaCheapest£564Average£669FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air FranceCheapest£570Average£701FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£579Average£834FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£594Average£806FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portsmouth to Mexico City?

When you search for this flight from Portsmouth to Mexico City, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Mexico City?

Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to Mexico City for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Portsmouth to Mexico City with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Mexico City, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Portsmouth to Mexico City become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Mexico City from Portsmouth today and book when prices fit your budget.

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