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Cheap flights from Glasgow Intl Airport to Philadelphia from £225

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — PHL
24 Aug — 31 Aug1
1 adult

Cheapflights Tip: The best prices from Glasgow Intl to Philadelphia are usually found in January or May, booked 24 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 19 August 2025.

Round-trip from

£419

One-way from

£225

Popular in

August

Cheapest in

January

Average price

£756
Aer Lingus
  • Aer Lingus
  • 2/10-9/10
  • 2 total stops
  • 24h 10m total
  • Glasgow to Philadelphia
Search Deals
3/9
  • 3/9
  • 2 total stops
  • 44h 17m total
  • Glasgow to Philadelphia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Glasgow Intl to Philadelphia

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 19 August 2025.

Thu 2/1013:45GLA - PHL
1 stop10h 15mMultiple Airlines
Thu 9/1020:30PHL - GLA
1 stop13h 55mMultiple Airlines
Deal found 18/8£419
Fri 26/913:05GLA - PHL
1 stop10h 55mAer Lingus
Mon 29/920:30PHL - GLA
1 stop15h 20mAer Lingus
Deal found 17/8£488
Thu 2/1008:35GLA - PHL
1 stop15h 25mAer Lingus
Thu 9/1020:30PHL - GLA
1 stop15h 20mAer Lingus
Deal found 18/8£508
Wed 1/1013:30GLA - PHL
2 stops34h 30mMultiple Airlines
Wed 8/1020:30PHL - GLA
1 stop16h 45mMultiple Airlines
Deal found 17/8£511
Fri 26/907:55GLA - PHL
1 stop16h 05mMultiple Airlines
Mon 29/918:10PHL - GLA
2 stops16h 15mMultiple Airlines
Deal found 17/8£523
Wed 1/1009:25GLA - PHL
1 stop11h 05mBritish Airways
Wed 8/1018:30PHL - GLA
1 stop11h 55mBritish Airways
Deal found 17/8£533
Mon 20/1005:50GLA - PHL
1 stop12h 15mBritish Airways
Thu 30/1019:35PHL - GLA
1 stop11h 10mBritish Airways
Deal found 17/8£556
Wed 1/1006:00GLA - PHL
2 stops15h 52mKLM
Wed 8/1013:42PHL - GLA
2 stops13h 28mKLM
Deal found 17/8£559
Mon 22/910:35GLA - PHL
1 stop10h 50mBritish Airways
Mon 29/918:30PHL - GLA
1 stop10h 35mBritish Airways
Deal found 19/8£572

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 19 August 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to Philadelphia that are best for you.

Fly from

Glasgow Intl

Fly to

Philadelphia

Route

Depart

Return

Price

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Thu 2/10

13:45-19:00

1 stop10h 15m

Philadelphia

Thu 9/10

20:30-15:25

1 stop13h 55m

£419

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Fri 26/9

13:05-19:00

1 stop10h 55m

Philadelphia

Mon 29/9

20:30-16:50

1 stop15h 20m

£488

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Thu 2/10

08:35-19:00

1 stop15h 25m

Philadelphia

Thu 9/10

20:30-16:50

1 stop15h 20m

£508

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 1/10

13:30-19:00

2 stops34h 30m

Philadelphia

Wed 8/10

20:30-18:15

1 stop16h 45m

£511

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Fri 26/9

07:55-19:00

1 stop16h 05m

Philadelphia

Mon 29/9

18:10-15:25

2 stops16h 15m

£523

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 1/10

09:25-15:30

1 stop11h 05m

Philadelphia

Wed 8/10

18:30-11:25

1 stop11h 55m

£533

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Mon 20/10

05:50-13:05

1 stop12h 15m

Philadelphia

Thu 30/10

19:35-10:45

1 stop11h 10m

£556

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 1/10

06:00-16:52

2 stops15h 52m

Philadelphia

Wed 8/10

13:42-08:10

2 stops13h 28m

£559

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Mon 22/9

10:35-16:25

1 stop10h 50m

Philadelphia

Mon 29/9

18:30-10:05

1 stop10h 35m

£572

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 3/9

21:45-13:02

2 stops44h 17m

£225

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 16 results
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

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

Use this chart to determine the optimal time to book a return flight from Glasgow Intl to Philadelphia. Price data was last updated on 8 August 2025.

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Glasgow Intl Airport to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Glasgow Intl Airport to Philadelphia (average of £648). Flying from Glasgow Intl Airport to Philadelphia in July is currently the most expensive (average of £839). 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.

What is the cheapest time of day to fly from GLA to PHL?

Find hourly flight availability from Glasgow Intl to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

It’s typically best to fly out from Glasgow Intl Airport to Philadelphia at midday. Doing so could potentially save you 5% on the flight price compared to flying in the morning, which is usually more expensive.

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 19 August 2025.
Check out reviews from past customers who have flown with Aer Lingus and British 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
7.2
Good
1,221 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.3

Crew

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,221 reviews
Aer Lingus
7.2
Good
1,221 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.3

Crew

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
British Airways
6.7
Okay
7,283 reviews
Aer Lingus
7.2
Good
1,221 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.3

Crew

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

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 2 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 10h 55m. The distance between Glasgow Intl Airport and Philadelphia is about 3297 mi.

  • 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 British Airways. Our recent data shows that you can find tickets from as low as £400 on this airline. An additional option worth looking into is Aer Lingus, starting at £492. British Airways is 30% 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, March is the cheapest month in which you can book a flight from Glasgow Intl Airport to Philadelphia (average of £648). Flying from Glasgow Intl Airport to Philadelphia in July is currently the most expensive (average of £839). 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 2 airlines flying from Glasgow Intl to Philadelphia

Discover the top 2 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£400Average£544FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£492Average£629FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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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