Find flights
When to book
Airlines
FAQs

Cheap flights from Glasgow to San Juan from £665

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SJU
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Glasgow to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 June 2025.

Round-trip from

£826

One-way from

£665

Popular in

May

Cheapest in

October

Average price

£924
16/8-22/8
  • 16/8-22/8
  • 6 total stops
  • 67h 16m total
  • Glasgow to San Juan
Search Deals
28/11
  • 28/11
  • 3 total stops
  • 44h 05m total
  • Glasgow to San Juan
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Glasgow to San Juan

Cheapest flights from Glasgow to San Juan
Explore the most affordable flight options available from Glasgow to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sat 16/816:15GLA - SJU
3 stops36h 57mMultiple Airlines
Fri 22/802:06SJU - GLA
3 stops30h 19mMultiple Airlines
Deal found 10/6£826
Fri 13/608:35GLA - SJU
2 stops18h 10mBritish Airways
Fri 20/611:55SJU - GLA
2 stops19h 15mBritish Airways
Deal found 12/6£1,442
Mon 11/812:00GLA - SJU
2 stops18h 31mAer Lingus
Sun 17/803:25SJU - GLA
2 stops23h 40mAer Lingus
Deal found 10/6£1,576

Cheapflights Fare Finder

Customise your flight search to find flights from Glasgow to San Juan 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 13 June 2025.
Use the filters below to find and compare flights from Glasgow to San Juan that are best for you.

Fly from

Glasgow

Fly to

San Juan

Route

Depart

Return

Price

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Sat 16/8

16:15-00:12

3 stops36h 57m

San Juan Luis Munoz Marin Intl

Fri 22/8

02:06-13:25

3 stops30h 19m

£826

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Mon 11/8

12:00-01:31

2 stops18h 31m

San Juan Luis Munoz Marin Intl

Sun 17/8

03:25-08:05

2 stops23h 40m

£1,576

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Fri 28/11

06:55-23:00

3 stops44h 05m

£665

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Fri 28/11

12:35-01:43

2 stops17h 08m

£705

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Best time to book a flight from Glasgow to San Juan

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

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

Currently, April is the cheapest month in which you can book a flight from Glasgow to San Juan (average of £631). Flying from Glasgow to San Juan in July is currently the most expensive (average of £1,027). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated 13 June 2025.
Aer Lingus
7.1
Good
1,118 reviews
Check prices

Entertainment

6.8

Boarding

7.2

Comfort

7.0

Food

6.4

Overall

7.1

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.
Aer Lingus
7.1
Good
1,118 reviews
Aer Lingus
7.1
Good
1,118 reviews
Check prices

Entertainment

6.8

Boarding

7.2

Comfort

7.0

Food

6.4

Overall

7.1

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.
Icelandair
7.0
Good
499 reviews
Aer Lingus
7.1
Good
1,118 reviews
Check prices

Entertainment

6.8

Boarding

7.2

Comfort

7.0

Food

6.4

Overall

7.1

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.

Related info for your journey

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

  • What is the cheapest airline to fly from Glasgow to San Juan round-trip?

    Flying on Aer Lingus is currently your cheapest option to San Juan, with prices starting at £1,576.

  • Can I find deals for flights from Glasgow to San Juan that include hotel bookings?

    Yes. In addition to deals on Glasgow to San Juan flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Glasgow to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to San Juan.

  • Can I find deals for business class flights from Glasgow to San Juan?

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

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

    Currently, April is the cheapest month in which you can book a flight from Glasgow to San Juan (average of £631). Flying from Glasgow to San Juan in July is currently the most expensive (average of £1,027). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Glasgow to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Glasgow Intl to Luis Munoz Marin Intl flights
Edinburgh to Luis Munoz Marin Intl flights

Top 3 airlines flying from Glasgow to San Juan

Discover the top 3 airlines that operate flights from Glasgow to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£498Average£648FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£556Average£767FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£572Average£902FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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 Glasgow to San Juan?

When you search for this flight from Glasgow to San Juan, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Glasgow to San Juan for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to San Juan from Glasgow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Glasgow to San Juan on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights