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Cheap flights from London Southend Airport to Puerto Rico from £348

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — SJU
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southend to Puerto Rico

Enter your travel dates to find the best prices.

One-way flights from Southend to Puerto Rico
Search for one-way flight options from Southend to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 12 December 2025.

Fri 13/316:05SEN - SJU
3 stops23h 30mMultiple Airlines
Deal found 10/12£348
Tue 31/306:20SEN - SJU
3 stops23h 25mMultiple Airlines
Deal found 9/12£468
Sat 21/306:30SEN - SJU
3 stops38h 35mMultiple Airlines
Deal found 10/12£486
Wed 17/1210:35SEN - SJU
3 stops36h 20mMultiple Airlines
Deal found 10/12£688
Mon 29/1211:15SEN - SJU
3 stops35h 34mMultiple Airlines
Deal found 11/12£802

Find flight deals from Southend to Puerto Rico

Keep the following information in mind while searching for Southend to Puerto Rico flight deals. Data was last updated 12 December 2025.

Popular in

December

Cheapest in

September

Average price

£958
Highest demand for flights based on searches. 5% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend to Puerto Rico 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 December 2025.
Use the filters below to find and compare flights from London Southend Airport to Puerto Rico that are best for you.

Fly from

Southend

Fly to

Puerto Rico

Route

Depart

Return

Price

LondonSan Juan

SEN - SJU

SENSJU

London Southend

Fri 13/3

16:05-11:35

3 stops23h 30m

£348

LondonSan Juan

SEN - SJU

SENSJU

London Southend

Tue 31/3

06:20-00:45

3 stops23h 25m

£468

LondonSan Juan

SEN - SJU

SENSJU

London Southend

Sat 21/3

06:30-17:05

3 stops38h 35m

£486

LondonSan Juan

SEN - SJU

SENSJU

London Southend

Wed 17/12

10:35-18:55

3 stops36h 20m

£688

LondonSan Juan

SEN - SJU

SENSJU

London Southend

Mon 29/12

11:15-18:49

3 stops35h 34m

£802

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Best time to book a flight from Southend to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Southend 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 London Southend Airport to Puerto Rico
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • Can I find deals for flights from Southend to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Southend to Puerto Rico flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southend to Puerto Rico?

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

  • Can I find deals for business class flights from Southend to Puerto Rico?

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

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Alternative routes for Southend to Puerto Rico

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How does Cheapflights help users find flights from Southend to Puerto Rico?

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Can Cheapflights find flights from Southend to Puerto Rico with no change fees?

Yes, we can. To see specific flights from Southend to Puerto Rico with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Southend to Puerto Rico become cheaper?

Yes, Cheapflights offers price alerts on Southend to Puerto Rico 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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