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Cheap flights from Portsmouth to Cancún from £509

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CUN
15 Sep — 22 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Cancún

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Cancún
Explore the most affordable flight options available from Portsmouth to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 August 2026.

Thu 17/909:05 -
2 stops40h 45m
Thu 24/912:35 -
2 stops38h 10m
Deal found 11/8£810
Wed 4/1117:30 -
2 stops32h 25m
Sun 15/1115:00 -
2 stops21h 00m
Deal found 10/8£840
Tue 10/1108:55 -
2 stops37h 00m
Tue 24/1113:40 -
2 stops24h 50m
Deal found 11/8£849
Tue 8/919:55 -
2 stops28h 05m
Tue 22/913:50 -
2 stops23h 40m
Deal found 11/8£896
Thu 3/917:20 -
2 stops32h 45m
Thu 10/914:00 -
2 stops36h 45m
Deal found 15/8£918
Fri 13/1119:55 -
2 stops50h 00m
Fri 27/1112:20 -
2 stops23h 15m
Deal found 14/8£932
Thu 17/917:20 -
2 stops30h 20m
Thu 24/913:30 -
3 stops37h 15m
Deal found 11/8£937
Wed 9/919:55 -
2 stops28h 05m
Wed 23/912:07 -
2 stops25h 23m
Deal found 12/8£966
Thu 3/917:20 -
3 stops35h 18m
Thu 10/916:00 -
2 stops34h 25m
Deal found 15/8£997
Sat 14/1110:15 -
2 stops35h 40m
Sat 28/1112:20 -
2 stops23h 15m
Deal found 15/8£1,002
Thu 10/919:55 -
2 stops28h 05m
Thu 24/912:30 -
2 stops38h 10m
Deal found 13/8£1,082

Find flight deals from Portsmouth to Cancún

Keep the following information in mind while searching for Portsmouth to Cancún flight deals. Data was last updated 16 August 2026.

Round-trip from

£705

One-way from

£509

Popular in

August

Cheapest in

February

Average price

£861
KLM
  • KLM
  • 11/1-18/1
  • 3 total stops
  • 41h 35m total
  • Portsmouth to Cancún
Search Deals
8/1
  • 8/1
  • 3 total stops
  • 31h 05m total
  • Portsmouth to Cancún
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£63 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 August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Cancún 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 16 August 2026.
Use the filters below to find and compare flights from Portsmouth to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Sat 9/1

09:25-10:00

2 stops29h 35m

Cancun

Sat 16/1

11:00-08:55

2 stops16h 55m

£723

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Mon 11/1

17:30-18:25

2 stops29h 55m

Cancun

Mon 18/1

21:00-17:00

2 stops15h 00m

£732

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Mon 11/1

17:30-15:05

1 stop26h 35m

Cancun

Sat 16/1

11:00-08:55

2 stops16h 55m

£830
Fastest return journey

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Thu 5/11

08:40-20:55

2 stops17h 15m

Cancun

Sun 15/11

15:00-17:00

2 stops21h 00m

£840

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Wed 4/11

17:30-20:55

2 stops32h 25m

Cancun

Sun 15/11

15:00-17:00

2 stops21h 00m

£840

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Sun 10/1

09:30-10:00

2 stops29h 30m

Cancun

Thu 14/1

11:00-08:10

2 stops16h 10m

£847

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Tue 10/11

08:55-16:55

2 stops37h 00m

Cancun

Tue 24/11

13:40-19:30

2 stops24h 50m

£849

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Tue 9/2

08:55-16:55

2 stops37h 00m

Cancun

Tue 23/2

12:15-19:30

2 stops26h 15m

£855

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Sun 10/1

09:30-10:00

2 stops29h 30m

Cancun

Fri 15/1

11:00-08:55

2 stops16h 55m

£877

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Tue 8/9

19:55-18:00

2 stops28h 05m

Cancun

Tue 22/9

13:50-19:30

2 stops23h 40m

£896

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Portsmouth to Cancún

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

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

Find hourly flight availability from Portsmouth to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 August 2026.

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

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Cancún. 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 Cancún from Portsmouth?

    Cancun (CUN), located 8.9 mi from the city center, is the airport you fly into when you book flights from Portsmouth to Cancún. 16 airlines have flights to Cancun from Portsmouth on a regular basis. Booking flights from Portsmouth to Cancun should not be difficult; the airport handles an average of 0 inbound flights from Portsmouth per day.

  • How long is the flight from Portsmouth to Cancún?

    KLM and Delta can get you from Portsmouth to Cancún in just under 17h 15m. Your travel time can differ by up to 12h 20m. The distance between Portsmouth and Cancún is about 4906 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest flights from Portsmouth to Cancún?

    The cheapest flight price from Portsmouth to Cancún is £571. On average you can expect to pay £740. The most popular route, (Southampton Eastleigh - Cancun), can usually be booked for £706.

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

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

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

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

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

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

See more FAQs

Travelling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Holbox

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Top 10 airlines flying from Portsmouth to Cancún

Discover the top 10 airlines that operate flights from Portsmouth to Cancún. 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 16 August 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£253Average£680FlexibilityNo cancel feeOn-time75%
Search KLM flights
TUI AirwaysCheapest£272Average£477FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
British AirwaysCheapest£445Average£657FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£450Average£582FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£451Average£641FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£455Average£616FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£479Average£739FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£484Average£714FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapest£493Average£655FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
FinnairCheapest£495Average£827FlexibilityNo 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 Cancún?

Cheapflights helps you search for flights from Portsmouth to Cancún via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Cancún by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Cancún flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Portsmouth to Cancún flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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