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Cheap flights from Glasgow Intl Airport to Philadelphia from £340

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — PHL
6 Jul — 13 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow Intl to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow Intl to Philadelphia
Explore the most affordable flight options available from Glasgow Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 June 2026.

Wed 11/1109:45
GLA
-
PHL
1 stop11h 15m
Multiple Airlines
Wed 18/1117:30
PHL
-
GLA
1 stop15h 00m
Multiple Airlines
Deal found 4/6£554
Tue 25/812:00
GLA
-
PHL
1 stop11h 55m
British Airways
Thu 10/918:45
PHL
-
GLA
1 stop11h 45m
British Airways
Deal found 5/6£645
Thu 12/1109:55
GLA
-
PHL
1 stop11h 20m
British Airways
Wed 18/1121:10
PHL
-
GLA
1 stop13h 15m
British Airways
Deal found 4/6£653
Tue 10/1109:50
GLA
-
PHL
1 stop11h 25m
American Airlines
Mon 16/1116:00
PHL
-
GLA
2 stops13h 45m
American Airlines
Deal found 4/6£662
Tue 25/806:00
GLA
-
PHL
2 stops15h 33m
KLM
Thu 10/917:12
PHL
-
GLA
2 stops17h 58m
KLM
Deal found 5/6£666
Thu 12/1105:40
GLA
-
PHL
2 stops16h 39m
Delta
Wed 18/1109:40
PHL
-
GLA
2 stops22h 05m
Delta
Deal found 4/6£675
Fri 13/1109:40
GLA
-
PHL
1 stop11h 35m
American Airlines
Wed 18/1119:50
PHL
-
GLA
1 stop9h 55m
American Airlines
Deal found 4/6£692
Wed 9/907:30
GLA
-
PHL
1 stop14h 10m
British Airways
Sun 13/918:45
PHL
-
GLA
1 stop10h 45m
British Airways
Deal found 3/6£695

Find flight deals from Glasgow Intl to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to Philadelphia (PHL). 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 6 June 2026.

Round-trip from

£554

One-way from

£340

Popular in

July

Cheapest in

August

Average price

£702
11/11-18/11
  • 11/11-18/11
  • 2 total stops
  • 26h 15m total
  • Glasgow to Philadelphia
Search Deals
11/11
  • 11/11
  • 3 total stops
  • 36h 35m total
  • Glasgow to Philadelphia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl to Philadelphia 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 6 June 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 25/8

12:00-18:55

1 stop11h 55m

Philadelphia

Thu 10/9

18:45-13:35

1 stop13h 50m

£647

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 25/8

06:00-16:33

2 stops15h 33m

Philadelphia

Thu 10/9

17:12-16:10

2 stops17h 58m

£666

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 9/9

09:30-16:40

1 stop12h 10m

Philadelphia

Sun 13/9

13:53-10:30

2 stops15h 37m

£695

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 9/9

14:00-09:43

2 stops24h 43m

Philadelphia

Sun 13/9

18:56-10:10

2 stops34h 14m

£731
Cheapest one-way

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 11/11

08:25-16:00

3 stops36h 35m

£340

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Fri 11/9

06:50-14:04

2 stops36h 14m

£357

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 11/11

05:55-17:20

2 stops16h 25m

£475

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Sat 22/8

07:55-21:10

2 stops18h 15m

£562
Fastest single journey

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Fri 3/7

13:20-18:55

1 stop10h 35m

£645

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Sat 8/8

22:00-18:55

1 stop25h 55m

£665

Flights are sorted by cheapest return flights first.

Deals found on 4/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Glasgow Intl to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Glasgow Intl 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 Intl Airport to Philadelphia

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

Currently, August is the cheapest month in which you can book a flight from Glasgow Intl Airport to Philadelphia (average of £539). Flying from Glasgow Intl Airport to Philadelphia in July is currently the most expensive (average of £857). 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 for a return flight from Glasgow Intl Airport to Philadelphia?

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated 6 June 2026.
Check out reviews from past customers who have flown with Aer Lingus,American Airlines, andBritish Airways from Glasgow Intl Airport to Philadelphia 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
1,598 reviews
Check prices

Overall

7.3

Boarding

7.4

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

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
1,598 reviews
Aer Lingus
7.3
Good
1,598 reviews
Check prices

Overall

7.3

Boarding

7.4

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

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.
American Airlines
7.1
Good
11,651 reviews
Aer Lingus
7.3
Good
1,598 reviews
Check prices

Overall

7.3

Boarding

7.4

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

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
8,028 reviews
Aer Lingus
7.3
Good
1,598 reviews
Check prices

Overall

7.3

Boarding

7.4

Food

6.7

Entertainment

7.0

Comfort

7.2

Crew

8.1

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 Philadelphia. 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 Philadelphia from Glasgow Intl?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from Glasgow Intl to Philadelphia. You should not have trouble finding flights to Philadelphia 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 3 airlines have flights to the Philadelphia airport from Glasgow Intl. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

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

    Departing from Glasgow Intl Airport to Philadelphia will take you 11h 55m. The distance between Glasgow Intl Airport and Philadelphia is about 3297 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Glasgow Intl Airport to Philadelphia round-trip?

    Our cheapest airline available from Glasgow Intl Airport to Philadelphia is Aer Lingus. Our recent data shows that you can find tickets from as low as £477 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at £510 and £547 round-trip. Aer Lingus is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow Intl to Philadelphia 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 Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Glasgow Intl Airport to Philadelphia (average of £539). Flying from Glasgow Intl Airport to Philadelphia in July is currently the most expensive (average of £857). 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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Top 3 airlines flying from Glasgow Intl to Philadelphia

Discover the top 3 airlines that operate flights from Glasgow Intl to Philadelphia. 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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£477Average£588FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£510Average£584FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£547Average£587FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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How does Cheapflights help users find flights from Glasgow Intl to Philadelphia?

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Can Cheapflights find flights from Glasgow Intl to Philadelphia with no change fees?

Need flexible booking options for your flight to Philadelphia from Glasgow Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Glasgow Intl to Philadelphia become cheaper?

Yes! Start tracking prices for Glasgow Intl to Philadelphia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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