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Cheap flights from Portsmouth to Mexico from £417

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MEX
3 May — 10 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Mexico

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Mexico
Explore the most affordable flight options available from Portsmouth to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 April 2026.

Tue 29/919:55
SOU
-
CUN
2 stops28h 05m
British Airways
Tue 13/1013:50
CUN
-
SOU
2 stops23h 40m
British Airways
Deal found 31/3£915
Mon 27/419:55
SOU
-
CUN
2 stops28h 40m
British Airways
Mon 11/519:45
CUN
-
SOU
2 stops17h 40m
British Airways
Deal found 30/3£939
Wed 30/919:55
SOU
-
CUN
2 stops28h 10m
British Airways
Wed 14/1013:50
CUN
-
SOU
2 stops21h 00m
British Airways
Deal found 1/4£941
Thu 9/718:05
SOU
-
CUN
2 stops47h 30m
Delta
Mon 27/715:36
CUN
-
SOU
2 stops19h 59m
Delta
Deal found 2/4£944
Mon 28/919:55
SOU
-
CUN
2 stops28h 40m
British Airways
Mon 12/1012:08
CUN
-
SOU
2 stops25h 22m
British Airways
Deal found 30/3£945
Wed 15/409:05
SOU
-
CUN
2 stops17h 10m
Delta
Wed 6/508:00
CUN
-
SOU
2 stops18h 35m
Delta
Deal found 1/4£950
Tue 28/419:55
SOU
-
CUN
2 stops28h 05m
British Airways
Tue 12/513:00
CUN
-
SOU
2 stops24h 30m
British Airways
Deal found 31/3£970
Thu 9/718:05
SOU
-
CUN
2 stops47h 35m
Delta
Fri 31/714:01
CUN
-
SOU
2 stops36h 44m
Delta
Deal found 2/4£974
Sat 18/417:20
SOU
-
CUN
2 stops32h 55m
Delta
Tue 5/515:35
CUN
-
SOU
2 stops19h 15m
Delta
Deal found 1/4£980
Tue 12/509:05
SOU
-
MEX
1 stop15h 54m
KLM
Tue 19/507:05
MEX
-
SOU
2 stops18h 30m
KLM
Deal found 29/3£985
Tue 12/509:05
SOU
-
MEX
1 stop15h 54m
Multiple Airlines
Tue 19/520:05
MEX
-
SOU
1 stop13h 45m
Multiple Airlines
Deal found 29/3£989
Wed 15/409:05
SOU
-
CUN
2 stops17h 10m
Delta
Fri 8/514:10
CUN
-
SOU
2 stops20h 40m
Delta
Deal found 1/4£990

Find flight deals from Portsmouth to Mexico

Keep the following information in mind while searching for Portsmouth to Mexico flight deals. Data was last updated 3 April 2026.

Round-trip from

£915

One-way from

£417

Popular in

December

Cheapest in

February

Average price

£672
British Airways
  • British Airways
  • 29/9-13/10
  • 4 total stops
  • 51h 45m total
  • Portsmouth to Mexico
Search Deals
22/4
  • 22/4
  • 3 total stops
  • 34h 10m total
  • Portsmouth to Mexico
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£3 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Mexico 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 3 April 2026.
Use the filters below to find and compare flights from Portsmouth to Mexico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Tue 29/9

19:55-18:00

2 stops28h 05m

Cancun

Tue 13/10

13:50-19:30

2 stops23h 40m

£915

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 27/4

19:55-18:35

2 stops28h 40m

Cancun

Mon 11/5

19:45-19:25

2 stops17h 40m

£939

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Wed 30/9

19:55-18:05

2 stops28h 10m

Cancun

Wed 14/10

13:50-16:50

2 stops21h 00m

£941

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Thu 9/7

18:05-11:35

2 stops47h 30m

Cancun

Mon 27/7

15:36-17:35

2 stops19h 59m

£944

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Tue 14/7

09:15-20:15

2 stops41h 00m

Cancun

Thu 30/7

12:35-17:35

2 stops23h 00m

£944

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 28/9

19:55-18:35

2 stops28h 40m

Cancun

Mon 12/10

12:08-19:30

2 stops25h 22m

£945

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Tue 28/4

19:55-18:00

2 stops28h 05m

Cancun

Tue 12/5

13:00-19:30

2 stops24h 30m

£970
Fastest return journey

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Tue 12/5

09:05-17:59

1 stop15h 54m

Mexico City Benito Juarez

Tue 19/5

07:05-08:35

2 stops18h 30m

£985

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Sun 13/9

17:20-21:10

2 stops34h 50m

Mexico City Benito Juarez

Mon 28/9

08:40-16:50

2 stops25h 10m

£1,011

SouthamptonMexico City

SOU - MEX

SOUMEX

Southampton Eastleigh

Thu 3/9

09:05-21:15

2 stops19h 10m

Mexico City Benito Juarez

Wed 16/9

15:15-08:35

2 stops34h 20m

£1,013

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 31 resultsSorted by cheapest first
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Best time to book a flight from Portsmouth to Mexico

Have a flexible travel schedule? Discover the best time to fly to Mexico 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

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

Currently, April is the cheapest month in which you can book a flight from Portsmouth to Mexico (average of £268). Flying from Portsmouth to Mexico in July is currently the most expensive (average of £572). 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 MX?

Find hourly flight availability from Portsmouth to Mexico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 April 2026.

When flying from Portsmouth to Mexico, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 22% versus a flight in the evening.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Mexico. Price data was last updated on 28 March 2026.

Travellers seeking maximum savings on their Portsmouth to Mexico flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Mexico

Explore weekly flight availability from Portsmouth to Mexico. 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 3 April 2026.

The most flights from P0R to MX0 are scheduled on a Monday (5 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

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

  • How long is the flight from Portsmouth to Mexico?

    Airlines like British Airways, Delta, and KLM fly from Portsmouth to Mexico in about 15h 54m. The time it takes to get you to your destination can typically vary by up to 31h 36m. The distance from Portsmouth to Mexico is about 5503 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Mexico on time: Aeromexico (95%), Virgin Atlantic (95%), EL AL (95%).

  • What are the cheapest flights from Portsmouth to Mexico?

    The cheapest flight price from Portsmouth to Mexico is £376. On average you can expect to pay £1,120. The most popular route, (Southampton Eastleigh - Mexico City Benito Juarez), can usually be booked for £1,087.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Mexico 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?

    Currently, April is the cheapest month in which you can book a flight from Portsmouth to Mexico (average of £268). Flying from Portsmouth to Mexico in July is currently the most expensive (average of £572). 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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Alternative routes for Portsmouth to Mexico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Portsmouth to Mexico

Discover the top 10 airlines that operate flights from Portsmouth to Mexico. 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 3 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£259Average£705FlexibilityNo cancel feeOn-time75%
Search KLM flights
TUI AirwaysCheapest£278Average£305FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
AeromexicoCheapest£301Average£932FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
Air CanadaCheapest£385Average£649FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£449Average£810FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£453Average£597FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£466Average£700FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
AviancaCheapest£493Average£648FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air EuropaCheapest£500Average£587FlexibilityNo cancel feeOn-time83%
Search Air Europa flights
FinnairCheapest£502Average£819FlexibilityNo cancel feeOn-time76%
Search Finnair 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?

Cheapflights makes it easy to find Portsmouth to Mexico flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to Mexico 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 with no change fees?

Certainly. Search results for flights to Mexico from Portsmouth shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Portsmouth to Mexico flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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