£49+ 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 21/11. 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
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

What to know about flights from San Juan

Discover essential information about flights departing from San Juan, including flight schedules, destinations, airlines operating at the San Juan airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 14 November 2025.

Cheapest airline

JetBlue
On average, JetBlue currently has the cheapest one-way flight from San Juan (avg. price of £177).
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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 14 November 2025.

Tue 3/306:00SJU - EWR
Nonstop4h 16mJetBlue
Wed 4/322:00EWR - SJU
Nonstop4h 00mJetBlue
Deal found 12/11£134
Thu 29/118:27SJU - EWR
1 stop7h 28mDelta
Mon 2/207:00EWR - SJU
1 stop9h 17mDelta
Deal found 12/11£141
Sat 31/107:00SJU - EWR
Nonstop4h 13mJetBlue
Mon 2/208:45EWR - SJU
Nonstop4h 03mJetBlue
Deal found 12/11£141
Sat 27/1207:10SJU - EWR
Nonstop4h 25mMultiple Airlines
Sat 3/113:55EWR - SJU
Nonstop4h 00mMultiple Airlines
Deal found 12/11£144
Thu 4/1214:03SJU - EWR
Nonstop4h 13mJetBlue
Mon 8/1206:00EWR - SJU
Nonstop3h 49mJetBlue
Deal found 14/11£149
Wed 24/1206:14SJU - EWR
Nonstop4h 16mJetBlue
Thu 1/117:54EWR - SJU
Nonstop4h 05mJetBlue
Deal found 11/11£150
Thu 15/119:35SJU - EWR
Nonstop4h 18mUnited Airlines
Sun 18/119:30EWR - SJU
1 stop9h 41mUnited Airlines
Deal found 13/11£153
Wed 24/1206:14SJU - EWR
Nonstop4h 16mJetBlue
Sun 4/119:36EWR - SJU
Nonstop4h 06mJetBlue
Deal found 11/11£154
Tue 27/115:55SJU - EWR
1 stop9h 00mDelta
Mon 2/206:00EWR - SJU
1 stop7h 30mDelta
Deal found 12/11£156
Thu 29/116:40SJU - EWR
Nonstop4h 19mJetBlue
Sun 1/219:10EWR - SJU
Nonstop4h 06mJetBlue
Deal found 12/11£157
Wed 17/1216:55SJU - ATL
1 stop6h 51mJetBlue
Sun 21/1211:50ATL - SJU
1 stop5h 25mJetBlue
Deal found 12/11£158
Sat 20/1209:36SJU - EWR
Nonstop4h 19mJetBlue
Sun 4/119:36EWR - SJU
Nonstop4h 06mJetBlue
Deal found 13/11£161

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 14 November 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

Tue 3/3

06:00-09:16

Nonstop4h 16m

Newark

Wed 4/3

22:00-03:00

Nonstop4h 00m

£134

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Fri 16/1

18:27-00:55

1 stop7h 28m

Newark

Tue 20/1

06:00-14:10

1 stop7h 10m

£163

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Wed 11/3

05:01-09:13

Nonstop4h 12m

Newark

Tue 17/3

20:55-00:51

Nonstop3h 56m

£164

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Thu 15/1

16:52-00:45

1 stop8h 53m

Newark

Mon 19/1

19:37-00:36

Nonstop3h 59m

£168

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Thu 26/2

15:38-18:58

Nonstop4h 20m

Newark

Sun 1/3

12:02-22:14

1 stop9h 12m

£175

San JuanOrlando

SJU - MCO

SJUMCO

San Juan Luis Munoz Marin Intl

Wed 6/5

22:30-01:27

Nonstop2h 57m

Orlando

Wed 13/5

10:50-13:50

Nonstop3h 00m

£185

San JuanOrlando

SJU - MCO

SJUMCO

San Juan Luis Munoz Marin Intl

Fri 3/4

20:35-23:52

Nonstop3h 17m

Orlando

Tue 7/4

15:15-00:55

1 stop9h 40m

£186

San JuanNewark

SJU - EWR

SJUEWR

San Juan Luis Munoz Marin Intl

Wed 24/12

13:40-17:00

Nonstop4h 20m

Newark

Mon 5/1

20:40-01:40

Nonstop4h 00m

£194

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 4/12

14:20-17:45

Nonstop4h 25m

Boston Logan Intl

Mon 8/12

08:10-13:10

Nonstop4h 00m

£199

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 25/11

21:25-00:30

Nonstop4h 05m

Boston Logan Intl

Mon 1/12

05:01-09:59

Nonstop3h 58m

£199

Flights are sorted by cheapest return flights first.

Deals found on 13/11

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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 7 November 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 £77). Flying from San Juan in June will prove the most costly (average of £746). 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 14 November 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!

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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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