Cheap flights from London to Puerto Rico from £219
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Puerto Rico departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Icelandair flights from London to Puerto Rico
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JetBlue flights from London to Puerto Rico
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How to get the cheapest flight ticket from London to Puerto Rico
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Puerto Rico?
In general, September is the cheapest month to fly from London to Puerto Rico. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £540. If you don’t want to visit Puerto Rico in September, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of £546.
What is the cheapest day to depart on your flight to Puerto Rico?
According to our data, Monday is the cheapest day to fly to Puerto Rico from London. The lowest ticket price found for a Monday departure recently was £474. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around £634.
What is the cheapest time of day to depart on your flight to Puerto Rico?
Flying to Puerto Rico from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £561 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £716 on average. Flights to Puerto Rico from London in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.
How far in advance should I book a flight to Puerto Rico?
You are more likely to see cheaper flights to Puerto Rico from London when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £637 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from London for as low as £503 on momondo.
What is the cheapest airline that flies from London to Puerto Rico?
JetBlue, Avianca, and Iberia are the most popular carriers operating from London to Puerto Rico
Which airlines fly to Puerto Rico?
Finnair, Iberia and Icelandair are the top three most popular airlines that fly to Puerto Rico from London according to our data. Finnair is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Puerto Rico. Keep in mind that there are 6 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.
Cheap London to Puerto Rico flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Puerto Rico
When did momondo last update prices for flights from London to Puerto Rico?
Prices for flights from London to Puerto Rico are refreshed on a daily basis.
How many operators does momondo search for flights from London to Puerto Rico?
As of June 2025, there are 6 operators available to choose from for flights from London to Puerto Rico.
How old do you have to be to fly from London to Puerto Rico?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from London to Puerto Rico
Compare and see reviews for airlines that fly from London to Puerto Rico with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £355 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £408 | Free Cancellation | Rating 7.3 2,923 reviews | |||
| PriceFrom £412 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £420 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £506 | Free Cancellation | Rating 7.0 2,776 reviews | |||
| PriceFrom £532 | Free Cancellation | Rating 6.6 7,011 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Puerto Rico?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Puerto Rico for you.
Can I find flights from London to Puerto Rico with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Puerto Rico flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Puerto Rico?
Once you have performed a search for London to Puerto Rico flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from London to Puerto Rico right now. Can momondo alert me if prices change?
If you are not ready to book a flight from London to Puerto Rico now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Puerto Rico and let you know when they change.