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Cheap flights from Portsmouth to Mexico from £754

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MEX
10 May — 17 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 10 April 2026.

Mon 25/517:20
SOU
-
CUN
2 stops31h 20m
Multiple Airlines
Fri 12/620:40
CUN
-
SOU
2 stops30h 05m
Multiple Airlines
Deal found 7/4£804
Fri 22/509:20
SOU
-
CUN
3 stops41h 40m
Multiple Airlines
Fri 29/511:25
CUN
-
SOU
2 stops26h 05m
Multiple Airlines
Deal found 7/4£813
Thu 21/515:25
SOU
-
CUN
2 stops33h 15m
Multiple Airlines
Thu 28/513:25
CUN
-
SOU
2 stops24h 05m
Multiple Airlines
Deal found 5/4£870
Mon 25/517:20
SOU
-
CUN
3 stops31h 20m
Multiple Airlines
Mon 1/613:25
CUN
-
SOU
3 stops37h 10m
Multiple Airlines
Deal found 10/4£877
Mon 4/519:55
SOU
-
CUN
2 stops28h 40m
British Airways
Mon 18/519:45
CUN
-
SOU
2 stops17h 40m
British Airways
Deal found 6/4£897
Sat 23/507:50
SOU
-
CUN
2 stops16h 55m
Multiple Airlines
Sat 30/514:20
CUN
-
SOU
1 stop36h 15m
Multiple Airlines
Deal found 8/4£926
Sun 17/509:15
SOU
-
CUN
2 stops17h 01m
Delta
Tue 26/513:30
CUN
-
SOU
2 stops45h 20m
Delta
Deal found 7/4£927
Sat 23/520:00
SOU
-
MEX
2 stops36h 50m
Multiple Airlines
Fri 29/503:35
MEX
-
SOU
3 stops30h 15m
Multiple Airlines
Deal found 7/4£937
Thu 21/509:05
SOU
-
MEX
3 stops46h 30m
Multiple Airlines
Wed 27/500:30
MEX
-
SOU
3 stops36h 00m
Multiple Airlines
Deal found 6/4£978
Mon 9/1117:30
SOU
-
MEX
2 stops31h 50m
Delta
Thu 19/1113:55
MEX
-
SOU
2 stops36h 55m
Delta
Deal found 8/4£999
Thu 21/509:05
SOU
-
MEX
1 stop15h 54m
KLM
Thu 28/507:05
MEX
-
SOU
2 stops18h 30m
KLM
Deal found 6/4£1,007
Mon 25/520:40
SOU
-
MEX
3 stops34h 35m
Multiple Airlines
Sun 31/501:15
MEX
-
SOU
2 stops35h 15m
Multiple Airlines
Deal found 10/4£1,011

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 10 April 2026.

Round-trip from

£804

One-way from

£754

Popular in

December

Cheapest in

February

Average price

£654
25/5-12/6
  • 25/5-12/6
  • 4 total stops
  • 61h 25m total
  • Portsmouth to Mexico
Search Deals
British Airways
  • British Airways
  • 4/10
  • 2 total stops
  • 30h 00m 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 (£11 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 10 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

Thu 21/5

15:25-18:40

2 stops33h 15m

Cancun

Thu 28/5

13:25-19:30

2 stops24h 05m

£870

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 25/5

17:20-18:40

3 stops31h 20m

Cancun

Mon 1/6

13:25-08:35

3 stops37h 10m

£877

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 4/5

19:55-18:35

2 stops28h 40m

Cancun

Mon 18/5

19:45-19:25

2 stops17h 40m

£897

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Sat 23/5

07:50-18:45

2 stops16h 55m

Cancun

Sat 30/5

14:20-08:35

1 stop36h 15m

£926

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Wed 20/5

17:20-10:10

2 stops46h 50m

Cancun

Tue 26/5

13:30-16:50

2 stops45h 20m

£927

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 18/5

09:05-10:10

2 stops31h 05m

Cancun

Wed 27/5

13:30-16:50

2 stops21h 20m

£927

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 25/5

09:05-20:16

2 stops17h 11m

Cancun

Mon 1/6

13:30-16:50

2 stops21h 20m

£931

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Mon 5/10

19:55-18:40

2 stops28h 45m

Cancun

Mon 19/10

13:50-19:30

2 stops23h 40m

£934

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Tue 6/10

19:55-18:05

2 stops28h 10m

Cancun

Tue 20/10

12:30-19:30

2 stops25h 00m

£936

SouthamptonCancún

SOU - CUN

SOUCUN

Southampton Eastleigh

Wed 7/10

19:55-18:05

2 stops28h 10m

Cancun

Wed 21/10

12:08-16:50

2 stops22h 42m

£959

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 27 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 £267). Flying from Portsmouth to Mexico in July is currently the most expensive (average of £563). 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 10 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 21% 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 4 April 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 10 April 2026.

The most flights from P0R to MX0 are scheduled on a Monday (5 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 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 17h 45m. The time it takes to get you to your destination can typically vary by up to 29h 05m. 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 £373. On average you can expect to pay £1,087. The most popular route, (Southampton Eastleigh - Mexico City Benito Juarez), can usually be booked for £1,071.

  • 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 £267). Flying from Portsmouth to Mexico in July is currently the most expensive (average of £563). 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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£255Average£695FlexibilityNo cancel feeOn-time75%
Search KLM flights
TUI AirwaysCheapest£274Average£301FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
AeromexicoCheapest£297Average£918FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
Air CanadaCheapest£379Average£638FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£442Average£799FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£446Average£589FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£459Average£691FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
AviancaCheapest£486Average£641FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air EuropaCheapest£493Average£579FlexibilityNo cancel feeOn-time83%
Search Air Europa flights
FinnairCheapest£495Average£807FlexibilityNo 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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