£424 Cheap flights to San Juan
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to San Juan departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from the United Kingdom to San Juan
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
See travel insights to San Juan from
San Juan flights insights and trends
Explore insights for your San Juan flight to craft the best travel plan
What is the cheapest month to fly to San Juan?
The cheapest month to fly to San Juan from United Kingdom is in September. Flight prices, which tend to average around £549, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to San Juan from United Kingdom during November instead. Flights to San Juan in November, while not as cheap as those in September, still average around £557.
What is the cheapest day to depart on your flight to San Juan?
The cheapest day to depart on your flight to San Juan is on a Monday when prices can be found for as low as £535. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around £652.
What is the cheapest time of day to depart on your flight to San Juan?
In the morning is the cheapest time of day to fly from United Kingdom to San Juan when you can find flight prices for as low as £583. Flying to San Juan in the morning is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of £817.
How far in advance should I book a flight to San Juan?
You are more likely to see cheaper flights to San Juan from United Kingdom when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around £656 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from United Kingdom for as low as £548 on momondo.
Cheapest flights to San Juan
Find the cheapest flights to San Juan from your nearest city or airport
| CHEAPEST MONTH TO FLY TO SAN JUAN FROM LONDON HEATHROW AIRPORT | September | 25% cheaper | Flying from London Heathrow Airport to San Juan costs on average just £497 in September |
| MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM LONDON HEATHROW AIRPORT | December | 35% more expensive | It costs about £887 for flights to San Juan from London Heathrow Airport in December |
| MOST POPULAR MONTH TO FLY TO SAN JUAN FROM LONDON HEATHROW AIRPORT | February | 658% more users visited | More momondo users searched in flights to San Juan from London Heathrow Airport in February than any other month |
Cheap San Juan flight deals and tips
Summary info about San Juan flight prices, duration and airlines
Best One-Way Price | £451 |
|---|---|
Best Round-Trip Price | £424 |
Fastest flight time | 15h 41m |
Popular in | December |
Frequently asked questions about flying to San Juan
When is the best time to plan a beach trip to San Juan?
The month of January, February, or March is often the best time to visit San Juan to go to the beach due to the weather. Condado Beach is the most often visited beach in the area. Another popular beach in the area is Isla Verde Beach.
How far in advance should I book a flight to San Juan?
We recommend purchasing flights from United Kingdom to San Juan 89 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to San Juan for £674. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as £417.
Is there an alternative airport near San Juan?
Finding an alternative and possibly cheaper destination airport near San Juan is possible. If you are planning a flight to San Juan, consider booking flights to San Juan Isla Grande Airport (1 mi from San Juan city centre), Ceiba J. Aponte de la Torre Airport (34 mi from San Juan city centre), Ponce Mercedita Airport (43 mi from San Juan city centre), Vieques Airport (46 mi from San Juan city centre) or Culebra Airport (54 mi from San Juan city centre).
Is there a cheaper alternative to flying into San Juan?
Culebra Airport has an average price of £123 per person and is typically the cheapest airport to fly into when visiting San Juan. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.
What is the absolute cheapest flight to San Juan?
The best deal found on momondo in the last two weeks was a flight to San Juan from Bridgetown for £68. This is 72% cheaper than most flight deals to San Juan. To find the cheapest price to San Juan from your area, use momondo’s Airport-to-Airport Pricing Tool.
Are there flights to San Juan Antiguo?
Yes, if you fly to San Juan Luis Munoz Marin Intl in San Juan which is the closest available airport to San Juan Antiguo (7.8 mi away).
What’s the closest airport to Condado Beach?
The closest airport to Condado Beach is 5.3 mi away - San Juan’s San Juan Luis Munoz Marin Intl airport.
When did momondo last update prices for flights to San Juan?
Prices for flights to San Juan refresh daily.
How many operators does momondo search for flights to San Juan?
The number of operators available for flights to San Juan is 19 as of May 2025.
How old do you have to be to fly to San Juan?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to San Juan.
What documentation or ID do you need to fly to San Juan?
The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Why use momondo?
Why should I use momondo to find a flight deal to San Juan?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight to San Juan. momondo saves you time and could save you money on your trip.
Can I find flights to San Juan with flexible booking policies on momondo?
momondo does allow users to show only those flights to San Juan which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights to San Juan?
momondo provides multiple filters to help you find the best flight to San Juan. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight to San Juan right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.