HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SFO
Jul 14 — Jul 211
Tue 7/14
Tue 7/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Glasgow Intl to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 14, 2026.

This TravelUp deal was found by Cheapflights users on 6/11. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:35 am
GLA
-
SFO
1 stop16h 25m
British Airways
Sun 11/295:30 pm
SFO
-
GLA
1 stop15h 10m
British Airways
Deal found 6/11$710
This ChecknFly deal was found by Cheapflights users on 6/9. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:00 pm
GLA
-
SFO
1 stop27h 59m
Lufthansa
Mon 7/203:00 pm
SFO
-
GLA
1 stop35h 10m
Lufthansa
Deal found 6/9$711
This ChecknFly deal was found by Cheapflights users on 6/10. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/92:00 pm
GLA
-
SFO
2 stops26h 47m
Lufthansa
Sat 7/186:00 am
SFO
-
GLA
2 stops20h 10m
Lufthansa
Deal found 6/10$713
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:00 pm
GLA
-
SFO
2 stops18h 32m
United Airlines
Mon 7/206:15 am
SFO
-
GLA
2 stops19h 55m
United Airlines
Deal found 6/9$732
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:00 pm
GLA
-
SFO
2 stops18h 32m
United Airlines
Fri 7/1710:15 am
SFO
-
GLA
1 stop15h 55m
United Airlines
Deal found 6/10$734
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:00 pm
GLA
-
SFO
1 stop27h 09m
United Airlines
Wed 7/2212:35 pm
SFO
-
GLA
1 stop13h 35m
United Airlines
Deal found 6/13$736
This TravelUp deal was found by Cheapflights users on 6/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am
GLA
-
SFO
1 stop13h 45m
KLM
Wed 9/231:45 pm
SFO
-
GLA
1 stop18h 25m
KLM
Deal found 6/10$737
This British Airways deal was found by Cheapflights users on 6/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:30 am
GLA
-
SFO
1 stop14h 20m
British Airways
Sun 10/184:35 pm
SFO
-
GLA
1 stop14h 05m
British Airways
Deal found 6/9$780
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/108:35 am
GLA
-
SFO
2 stops19h 31m
American Airlines
Fri 7/177:30 pm
SFO
-
GLA
1 stop15h 25m
American Airlines
Deal found 6/10$782
This KLM deal was found by Cheapflights users on 6/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:30 pm
GLA
-
SFO
1 stop30h 15m
KLM
Mon 7/201:45 pm
SFO
-
GLA
1 stop18h 30m
KLM
Deal found 6/9$784

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 June 14, 2026.

Most accurate provider

BusinessClass
3 stars

Most trusted provider

BusinessClass
3 stars

Round-trip from

$710
(TravelUp)

One-way from

$422

Popular in

June

Cheapest in

May

Average price

$1,023
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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 14, 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

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Wed 7/8

2:00 pm-3:01 pm

1 stop33h 01m

San Francisco

Mon 7/20

6:00 am-10:10 am

2 stops20h 10m

$711

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Wed 7/8

2:00 pm-12:32 am

2 stops18h 32m

San Francisco

Mon 7/20

7:00 am-10:10 am

1 stop19h 10m

$732

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Thu 7/9

2:00 pm-6:53 am

2 stops24h 53m

San Francisco

Sun 7/19

6:15 am-10:10 am

2 stops19h 55m

$734

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Thu 7/9

2:00 pm-9:09 am

1 stop27h 09m

San Francisco

Sat 7/18

11:15 am-10:10 am

1 stop14h 55m

$734

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Wed 10/14

2:00 pm-8:45 am

2 stops26h 45m

San Francisco

Sun 10/18

7:00 am-10:10 am

2 stops19h 10m

$734

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Fri 7/10

2:00 pm-7:07 am

2 stops25h 07m

San Francisco

Thu 7/16

6:00 am-10:10 am

2 stops20h 10m

$734

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Thu 7/2

2:00 pm-12:32 am

2 stops18h 32m

San Francisco

Wed 7/22

7:00 am-10:10 am

1 stop19h 10m

$736
Quickest round-trip

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Wed 10/14

7:30 am-1:50 pm

1 stop14h 20m

San Francisco

Sun 10/18

4:35 pm-2:40 pm

1 stop14h 05m

$781

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Wed 7/8

1:30 pm-11:45 am

1 stop30h 15m

San Francisco

Mon 7/20

1:45 pm-4:15 pm

1 stop18h 30m

$784
Cheapest one-way

GlasgowSan Francisco

GLA - SFO

GLASFO

Glasgow Intl

Tue 9/1

5:35 pm-2:35 pm

2 stops29h 00m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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 June.
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, May is the cheapest month in which you can book a flight from Glasgow Intl Airport to San Francisco (average of $771). Flying from Glasgow Intl Airport to San Francisco in June is currently the most expensive (average of $1,023). 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?

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 June 14, 2026.
Peruse reviews from past customers who have flown with Aer Lingus and British Airways 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
1,603 reviews

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

Overall

7.3

Boarding

7.4

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
1,603 reviews
Aer Lingus
7.3
Good
1,603 reviews

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

Overall

7.3

Boarding

7.4

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.
British Airways
6.7
Okay
8,047 reviews
Aer Lingus
7.3
Good
1,603 reviews

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

Overall

7.3

Boarding

7.4

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 2 airlines have 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 18h 32m. Fly via Lufthansa or United Airlines 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 are the cheapest airlines flying from Glasgow Intl Airport to San Francisco round-trip?

    Flying on British Airways is currently your cheapest option to San Francisco, with prices starting at $586. Another option worth looking into is Aer Lingus, starting at $832 round trip. You may be able to fly from Glasgow Intl Airport to San Francisco for 32% less than the average price by searching for these airlines.

  • 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, May is the cheapest month in which you can book a flight from Glasgow Intl Airport to San Francisco (average of $771). Flying from Glasgow Intl Airport to San Francisco in June is currently the most expensive (average of $1,023). 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 Cruz
Santa Clara
Fairfield
Rancho Cordova
Roseville
Cupertino
Emeryville
Newark
San Bruno
Watsonville
San Ramon
Vacaville
San Carlos
Redwood City
Daly City
Sunnyvale
Turlock
Vallejo
San Lorenzo

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 Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Glasgow Intl to Los Angeles flights
Glasgow Intl to Las Vegas flights
Glasgow Intl to Oakland flights
Glasgow Intl to Sacramento flights

Top 2 airlines flying from Glasgow Intl to San Francisco

Discover the top 2 airlines 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 June 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$957FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$832Average$914FlexibilityNo cancel feeOn-timeN/A

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.