Cheap flights from Portsmouth to Mexico City from £395

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MEX
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

£1,034

One-way from

£395

Popular in

December

Cheapest in

February

Average price

£701
KLM
  • KLM
  • 26/10-2/11
  • 2 total stops
  • 45h 10m total
  • Portsmouth to Mexico City
11/10
  • 11/10
  • 3 total stops
  • 55h 35m total
  • Portsmouth to Mexico City
Highest demand for flights based on searches. 1% potential increase in price (£10 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Portsmouth to Mexico City

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 12 September 2025.

Sun 26/1018:05SOU - MEX
1 stop31h 35mKLM
Sun 2/1121:50MEX - SOU
1 stop13h 35mKLM
Deal found 11/9£1,034
Sun 26/1009:30SOU - MEX
2 stops30h 35mBritish Airways
Sun 2/1108:00MEX - SOU
2 stops29h 40mBritish Airways
Deal found 11/9£1,119
Sun 26/1009:30SOU - MEX
2 stops32h 00mMultiple Airlines
Sat 1/1101:05MEX - SOU
3 stops25h 40mMultiple Airlines
Deal found 11/9£1,370
Thu 11/917:35SOU - MEX
2 stops48h 50mDelta
Mon 15/913:55MEX - SOU
2 stops20h 05mDelta
Deal found 10/9£1,877
Wed 17/908:40SOU - MEX
2 stops18h 05mBritish Airways
Wed 17/622:00MEX - SOU
2 stops27h 25mBritish Airways
Deal found 12/9£2,625
Sat 13/909:20SOU - MEX
2 stops33h 05mDelta
Mon 15/913:15MEX - SOU
2 stops20h 45mDelta
Deal found 10/9£2,749
Fri 12/908:40SOU - MEX
2 stops18h 05mBritish Airways
Fri 12/922:00MEX - SOU
2 stops27h 15mBritish Airways
Deal found 10/9£3,018

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 12 September 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

Sun 26/10

18:05-19:40

1 stop31h 35m

Mexico City Benito Juarez

Sun 2/11

21:50-17:25

1 stop13h 35m

£1,034

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Sun 26/10

09:30-10:05

2 stops30h 35m

Mexico City Benito Juarez

Sun 2/11

08:00-19:40

2 stops29h 40m

£1,119

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Sun 26/10

09:30-11:30

2 stops32h 00m

Mexico City Benito Juarez

Sat 1/11

01:05-08:45

3 stops25h 40m

£1,370

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Sat 11/10

16:25-17:00

3 stops55h 35m

£395

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Fri 10/10

20:00-00:35

3 stops35h 35m

£621

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Tue 28/10

16:05-10:05

2 stops48h 00m

£800

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Wed 15/10

09:10-16:15

2 stops38h 05m

£851

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Tue 21/10

09:10-16:15

2 stops38h 05m

£851

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Tue 14/10

09:10-20:45

2 stops18h 35m

£851

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Sun 19/10

20:00-16:15

2 stops51h 15m

£859

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 14 results
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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, April is the cheapest month in which you can book a flight from Portsmouth to Mexico City (average of £791). Flying from Portsmouth to Mexico City in July is currently the most expensive (average of £1,261). 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 12 September 2025.

When flying from Portsmouth to Mexico City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portsmouth to Mexico City

Explore weekly flight availability from Portsmouth to Mexico City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 September 2025.

The most flights from P0R to MEX are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

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 30h 35m. 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 Virgin Atlantic (93%), Aeromexico (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 £1,418, our data shows the cheapest flight currently is £428. When looking at the most popular route, (Southampton Eastleigh - Mexico City Benito Juarez), you can expect to pay £773 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, April is the cheapest month in which you can book a flight from Portsmouth to Mexico City (average of £791). Flying from Portsmouth to Mexico City in July is currently the most expensive (average of £1,261). 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

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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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest£294Average£675FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
IberiaCheapest£469Average£842FlexibilityNo cancel feeOn-time77%
Search Iberia flights
DeltaCheapest£470Average£721FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£487Average£670FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£507Average£622FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£512Average£672FlexibilityNo cancel feeOn-time77%
Search Air France flights
LufthansaCheapest£532Average£767FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
AviancaCheapest£556Average£658FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest£564Average£787FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£570Average£821FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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