£53+ Cheap flights from San Juan

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 24/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SJU — LHR
27 Jan — 3 Feb1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights from San Juan
Explore the most affordable flight options available from San Juan. Find the lowest fares based on data from user searches, with prices last updated on 28 December 2025.

Fri 6/217:50SJU - EWR
Nonstop4h 15mSpirit Airlines
Sun 8/211:22EWR - SJU
Nonstop4h 00mSpirit Airlines
Deal found 26/12£105
Sat 28/206:00SJU - EWR
Nonstop4h 16mJetBlue
Sat 28/215:20EWR - SJU
Nonstop3h 57mJetBlue
Deal found 27/12£121
Wed 14/102:05SJU - EWR
Nonstop4h 19mUnited Airlines
Sun 18/119:37EWR - SJU
Nonstop3h 59mUnited Airlines
Deal found 27/12£124
Wed 25/206:00SJU - EWR
Nonstop4h 16mJetBlue
Sun 1/321:00EWR - SJU
Nonstop3h 59mJetBlue
Deal found 27/12£127
Mon 26/102:05SJU - EWR
Nonstop4h 19mUnited Airlines
Fri 30/119:30EWR - SJU
1 stop9h 41mUnited Airlines
Deal found 26/12£128
Thu 12/206:00SJU - EWR
Nonstop4h 16mJetBlue
Thu 19/220:35EWR - SJU
Nonstop4h 00mJetBlue
Deal found 26/12£130
Tue 27/107:45SJU - EWR
1 stop10h 15mUnited Airlines
Sat 31/119:30EWR - SJU
1 stop9h 41mUnited Airlines
Deal found 27/12£131
Fri 30/102:05SJU - EWR
Nonstop4h 19mUnited Airlines
Sat 31/119:30EWR - SJU
1 stop9h 41mUnited Airlines
Deal found 27/12£133
Wed 4/215:55SJU - EWR
1 stop9h 00mDelta
Wed 11/206:00EWR - SJU
1 stop7h 31mDelta
Deal found 26/12£137
Thu 5/219:15SJU - BOS
Nonstop4h 13mJetBlue
Sun 8/218:45BOS - SJU
Nonstop4h 03mJetBlue
Deal found 26/12£139
Thu 12/211:52SJU - MCO
Nonstop3h 17mSpirit Airlines
Mon 23/206:30MCO - SJU
Nonstop2h 47mSpirit Airlines
Deal found 27/12£140
Thu 22/102:05SJU - EWR
Nonstop4h 19mUnited Airlines
Fri 30/119:37EWR - SJU
Nonstop3h 59mUnited Airlines
Deal found 26/12£145

Find flights from San Juan within your budget

 
Find flights departing from San Juan that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 28 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Mon 26/1

02:05-05:24

Nonstop4h 19m

Newark

Sat 31/1

19:37-00:36

Nonstop3h 59m

£124

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Wed 14/1

02:05-05:24

Nonstop4h 19m

Newark

Sun 18/1

19:37-00:36

Nonstop3h 59m

£124

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Tue 13/1

02:05-05:24

Nonstop4h 19m

Newark

Wed 21/1

19:37-00:36

Nonstop3h 59m

£124

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Wed 25/2

06:00-09:16

Nonstop4h 16m

Newark

Sun 1/3

21:00-01:59

Nonstop3h 59m

£127

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Wed 28/1

08:35-16:16

1 stop8h 41m

Newark

Sat 31/1

19:37-00:36

Nonstop3h 59m

£128

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Thu 12/2

06:00-09:16

Nonstop4h 16m

Newark

Thu 19/2

20:35-01:35

Nonstop4h 00m

£130

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Fri 16/1

17:50-23:59

1 stop7h 09m

Newark

Mon 19/1

06:00-13:17

1 stop6h 17m

£131

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 15/1

06:15-09:25

Nonstop4h 10m

Boston Logan Intl

Wed 21/1

13:00-18:05

Nonstop4h 05m

£139

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 5/2

19:15-22:28

Nonstop4h 13m

Boston Logan Intl

Sun 8/2

18:45-23:48

Nonstop4h 03m

£139

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Thu 22/1

02:05-05:24

Nonstop4h 19m

Newark

Fri 30/1

19:37-00:36

Nonstop3h 59m

£145

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 60 results
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Best time to book a flight from San Juan

Have a flexible travel schedule? Discover the best time to fly from San Juan 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.

Travel insights for flights from San Juan

Get recent, data-driven insights about flights from San Juan including ideal travel times, pricing trends, and more.

When is the best time to book a flight from San Juan?

Use this chart to determine the optimal time to book a return flight from San Juan to Heathrow. Price data was last updated on 19 December 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Juan?

Currently, September is the cheapest month in which you can book a flight from San Juan (average of £75). Flying from San Juan in June will prove the most costly (average of £727). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Direct flights from Puerto Rico

Book a direct flight from one of these other cities located in Puerto Rico.
Direct flights from Aguadilla
Direct flights from Luis Munoz Marin Intl

Related info for your journey

Access useful and relevant information related to your journey from San Juan. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 28 December 2025.

  • What is the cheapest month to fly from San Juan?

    At the present moment the cheapest month to fly from San Juan is currently September; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • How does Cheapflights help users find flights from San Juan?

    Deals for flights from San Juan are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

  • Why should you use Cheapflights to find cheap flight tickets from San Juan?

    Cheapflights helps you find that perfect flight from San Juan by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from San Juan with no change fees?

    Users can book flights with no change fees policies with our dedicated filters. Book flights from San Juan flexibly with Cheapflights today.

  • Can Cheapflights notify me if prices for flights from San Juan become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

See more FAQs

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 San Juan?

Deals for flights from San Juan are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Juan?

Cheapflights helps you find that perfect flight from San Juan by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Juan with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Juan flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from San Juan become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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