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Cheap flights from Glasgow to San Juan from £721

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SJU
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

Round-trip from

£773

One-way from

£721

Popular in

August

Cheapest in

March

Average price

£928
Icelandair
  • Icelandair
  • 1/11-5/11
  • 4 total stops
  • 61h 03m total
  • Glasgow to San Juan
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Aer Lingus
  • Aer Lingus
  • 8/11
  • 2 total stops
  • 23h 28m total
  • Glasgow to San Juan
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Highest demand for flights based on searches. 10% potential increase in price (£90 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Glasgow to San Juan

Enter your travel dates to find the best prices.

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 17 October 2025.

Sat 1/1112:35GLA - SJU
2 stops39h 18mIcelandair
Wed 5/1108:10SJU - GLA
2 stops21h 45mIcelandair
Deal found 16/10£773
Sat 1/1110:40GLA - SJU
3 stops34h 25mMultiple Airlines
Wed 5/1118:30SJU - GLA
3 stops23h 40mMultiple Airlines
Deal found 16/10£1,246

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 17 October 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 1/11

12:35-23:53

2 stops39h 18m

San Juan Luis Munoz Marin Intl

Wed 5/11

08:10-09:55

2 stops21h 45m

£773

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Mon 9/3

12:35-01:47

2 stops17h 12m

San Juan Luis Munoz Marin Intl

Wed 11/3

11:05-09:55

2 stops18h 50m

£1,231

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Sat 1/11

10:40-17:05

3 stops34h 25m

San Juan Luis Munoz Marin Intl

Wed 5/11

18:30-22:10

3 stops23h 40m

£1,246

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Sat 8/11

12:00-03:48

2 stops19h 48m

£721

Flights are sorted by cheapest return flights first.

Deals found on 15/10

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, September is the cheapest month in which you can book a flight from Glasgow to San Juan (average of £452). Flying from Glasgow to San Juan in August is currently the most expensive (average of £855). 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.

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 17 October 2025.
See what other customers who have flown with British Airways from Glasgow to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,457 reviews
Check prices

Food

6.3

Boarding

6.9

Entertainment

6.4

Overall

6.7

Comfort

6.7

Crew

7.6

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,457 reviews
British Airways
6.7
Okay
7,457 reviews
Check prices

Food

6.3

Boarding

6.9

Entertainment

6.4

Overall

6.7

Comfort

6.7

Crew

7.6

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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.

  • How long is the flight from Glasgow to San Juan?

    Icelandair can get you from Glasgow to San Juan in just under 39h 18m. Your travel time can differ by up to . The distance between Glasgow and San Juan is about 4073 mi.

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

    Flying on British Airways is currently your cheapest option to San Juan, with prices starting at £800. You may be able to fly from Glasgow to San Juan for 20% less than the average price by searching for this airline.

  • 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, September is the cheapest month in which you can book a flight from Glasgow to San Juan (average of £452). Flying from Glasgow to San Juan in August is currently the most expensive (average of £855). 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

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Alternative routes for Glasgow to San Juan

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

Top 4 airlines flying from Glasgow to San Juan

Discover the top 4 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£438Average£596FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£508Average£697FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£566Average£835FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£579Average£994FlexibilityNo 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.

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