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$422+ Cheap flights from Glasgow Intl (GLA) to San Francisco (SFO)

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SFO
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Glasgow Intl to San Francisco

Cheapest flights from Glasgow Intl to San Francisco
Explore the most affordable flight options available from Glasgow Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This lastminute.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:20 am
GLA
-
SFO
1 stop15h 15m
Aer Lingus
Sat 11/285:20 pm
SFO
-
GLA
1 stop15h 30m
Aer Lingus
Deal found 7/27$701
This Expedia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:20 am
GLA
-
SFO
1 stop15h 15m
Aer Lingus
Sun 11/225:20 pm
SFO
-
GLA
1 stop15h 30m
Aer Lingus
Deal found 7/27$723
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:35 am
GLA
-
SFO
1 stop15h 15m
Aer Lingus
Tue 9/295:40 pm
SFO
-
GLA
1 stop13h 45m
Aer Lingus
Deal found 7/27$724
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:35 am
GLA
-
SFO
1 stop15h 20m
Aer Lingus
Wed 9/165:40 pm
SFO
-
GLA
1 stop13h 45m
Aer Lingus
Deal found 7/30$725
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:35 am
GLA
-
SFO
1 stop15h 15m
Aer Lingus
Wed 9/305:40 pm
SFO
-
GLA
1 stop13h 45m
Aer Lingus
Deal found 7/27$726
This Travcart deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travcart is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:40 am
GLA
-
SFO
1 stop14h 15m
Finnair
Sat 12/58:35 pm
SFO
-
GLA
1 stop30h 10m
Finnair
Deal found 7/30$783
This Travcart deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travcart is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:45 am
GLA
-
SFO
1 stop17h 00m
Finnair
Mon 11/305:25 pm
SFO
-
GLA
1 stop19h 00m
Finnair
Deal found 7/31$789
This Expedia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:20 am
GLA
-
SFO
1 stop15h 15m
Multiple Airlines
Wed 11/1812:15 pm
SFO
-
GLA
2 stops16h 35m
Multiple Airlines
Deal found 7/28$794
This Travcart deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travcart is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 pm
GLA
-
SFO
1 stop31h 40m
Finnair
Sat 11/288:35 pm
SFO
-
GLA
1 stop17h 55m
Finnair
Deal found 7/30$800

Find flight deals from Glasgow Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to San Francisco (SFO). 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 August 1, 2026.

Most accurate provider

BusinessClass
3 stars

Most trusted provider

BusinessClass
3 stars

Round-trip from

$701
(lastminute.com)

One-way from

$422
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$991
Provider with most accurate pricing for Glasgow Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Glasgow Intl-San Francisco flights.
Search Deals
From Glasgow Intl to San Francisco
Search Deals
One-way flight from Glasgow Intl to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Glasgow Intl to San Francisco 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 2,558,603 searches. Data last updated August 1, 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Mon 9/21

8:35 am-3:50 pm

1 stop15h 15m

San Francisco

Wed 9/30

5:40 pm-3:25 pm

1 stop13h 45m

$726

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Mon 9/21

6:00 am-11:45 am

1 stop13h 45m

San Francisco

Tue 9/29

9:30 am-4:10 pm

2 stops22h 40m

$850

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Tue 9/29

5:55 am-1:50 pm

1 stop15h 55m

San Francisco

Tue 10/6

7:30 pm-7:35 pm

1 stop16h 05m

$850

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Wed 9/9

6:00 am-11:45 am

1 stop13h 45m

San Francisco

Wed 9/16

7:00 am-12:55 pm

2 stops21h 55m

$854

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Tue 9/1

6:00 am-3:50 pm

2 stops17h 50m

San Francisco

Tue 9/15

2:20 pm-4:10 pm

2 stops17h 50m

$855

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Tue 9/29

9:10 am-8:18 pm

2 stops19h 08m

San Francisco

Tue 10/6

6:03 am-12:55 pm

2 stops22h 52m

$855

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Tue 9/1

4:05 pm-2:40 pm

2 stops30h 35m

San Francisco

Tue 9/15

4:45 pm-10:10 pm

2 stops21h 25m

$872

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Tue 9/1

9:10 am-9:47 pm

2 stops20h 37m

San Francisco

Tue 9/15

2:20 pm-4:10 pm

2 stops17h 50m

$874

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Thu 9/17

7:30 pm-1:50 pm

1 stop26h 20m

San Francisco

Mon 9/21

4:35 pm-4:10 pm

1 stop15h 35m

$883

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Thu 9/10

2:00 pm-10:37 pm

1 stop16h 37m

San Francisco

Thu 9/17

8:15 am-10:10 am

1 stop17h 55m

$942

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Glasgow Intl to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Glasgow Intl to San Francisco in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
BusinessClassPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Glasgow Intl Airport-San Francisco flights, users find the pricing of BusinessClass to be most consistent on Cheapflights vs. BusinessClass Users can find the same prices on Glasgow Intl Airport-San Francisco flight deals on Cheapflights vs. BusinessClass >95% of the time. Price accuracy is based on data collected from Glasgow Intl Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Glasgow Intl Airport-San Francisco flights, Cheapflights users trust BusinessClass the most. BusinessClass has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Glasgow Intl Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Glasgow Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Glasgow Intl with our price prediction graph.
Estimated round-trip 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 Intl Airport to San Francisco

How far ahead should I book a flight from Glasgow Intl Airport to San Francisco?

To ensure you get the cheapest price possible for a flight from Glasgow Intl Airport to San Francisco, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Glasgow Intl Airport to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to San Francisco (average of $793). Flying from Glasgow Intl Airport to San Francisco in December is currently the most expensive (average of $1,072). 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.

How much does it cost to fly round-trip from Glasgow Intl Airport to San Francisco?

Airfare is below average for this route at the moment.

Glasgow Intl Airport to San Francisco flights typically cost between $920 and $1,135 in November.
The cheapest round-trip price found within the last 5 days was $701 on Aer Lingus (Nov 18-Nov 28).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 Francisco. Reviews last updated August 1, 2026.
Peruse reviews from past customers who have flown with Aer Lingus from Glasgow Intl Airport to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,683 reviews

Food

6.7

Crew

8.1

Comfort

7.2

Boarding

7.4

Overall

7.3

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,683 reviews
Aer Lingus
7.3
Good
1,683 reviews

Food

6.7

Crew

8.1

Comfort

7.2

Boarding

7.4

Overall

7.3

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

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

  • What airport do you fly into for flights to San Francisco from Glasgow Intl?

    San Francisco (SFO) is the airport you will fly into if you book a flight from Glasgow Intl to San Francisco. You should not have trouble finding flights to San Francisco from Glasgow Intl; the airport handles an average of 0 inbound flights from Glasgow Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights to the San Francisco airport from Glasgow Intl. It is only a 11.0 mi journey from San Francisco (SFO) to San Francisco’s city center.

  • How long is the flight from Glasgow Intl Airport to San Francisco?

    There are many flights that can get you from Glasgow Intl Airport to San Francisco in 13h 45m. Fly via Aer Lingus, Delta, or British Airways to get the fastest option. Airlines will cover a distance of 5021 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Glasgow Intl Airport to San Francisco round-trip?

    Flying on Aer Lingus is currently your cheapest option to San Francisco, with prices starting at $832. You may be able to fly from Glasgow Intl Airport to San Francisco for 8% less than the average price by searching for this airline.

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

    Yes. In addition to deals on Glasgow Intl to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow Intl to San Francisco 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 Intl Airport to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to San Francisco (average of $793). Flying from Glasgow Intl Airport to San Francisco in December is currently the most expensive (average of $1,072). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Clara
Santa Cruz
Fairfield
Emeryville
Roseville
Burlingame
Rancho Cordova
San Bruno
Cupertino
Newark
Hayward
San Ramon
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Alternative routes for Glasgow Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Glasgow Intl to San Francisco

Discover the top airline that operate flights from Glasgow Intl to San Francisco. 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 2,558,603 searches. Data last updated August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$832Average$914FlexibilityNo cancel feeOn-timeN/A

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