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Cheap flights from Glasgow Intl Airport to Philadelphia from £511

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — PHL
19 May — 26 May1
1 adult

Cheapflights Tip: The best prices from Glasgow Intl to Philadelphia are usually found in January or November, booked 30 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 14 May 2025.

Round-trip from

£511

Popular in

August

Cheapest in

January

Average price

£520
British Airways
  • British Airways
  • 20/5-3/6
  • 2 total stops
  • 25h 45m total
  • Glasgow to Philadelphia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 14 May 2025.

Tue 20/505:50GLA - PHL
1 stop12h 00mBritish Airways
Tue 3/619:55PHL - GLA
1 stop13h 45mBritish Airways
Deal found 13/5£511
Tue 20/506:00GLA - PHL
2 stops17h 03mKLM
Tue 3/613:00PHL - GLA
2 stops14h 10mKLM
Deal found 13/5£534
Tue 20/505:50GLA - PHL
1 stop14h 25mAmerican Airlines
Tue 3/618:00PHL - GLA
2 stops13h 10mAmerican Airlines
Deal found 13/5£544
Mon 14/706:00GLA - PHL
2 stops18h 29mDelta
Mon 28/713:25PHL - GLA
2 stops21h 45mDelta
Deal found 13/5£551
Wed 9/717:40GLA - PHL
2 stops31h 15mIberia
Tue 15/719:55PHL - GLA
1 stop11h 15mIberia
Deal found 13/5£591
Wed 25/621:15GLA - PHL
3 stops41h 32mMultiple Airlines
Tue 22/706:13PHL - GLA
2 stops33h 32mMultiple Airlines
Deal found 13/5£659
Wed 9/717:40GLA - PHL
2 stops25h 10mFinnair
Thu 17/722:25PHL - GLA
1 stop19h 00mFinnair
Deal found 13/5£665

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 14 May 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

Tue 20/5

05:50-12:50

1 stop12h 00m

Philadelphia

Tue 3/6

19:55-14:40

1 stop13h 45m

£511

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 20/5

06:00-18:03

2 stops17h 03m

Philadelphia

Tue 3/6

13:00-08:10

2 stops14h 10m

£534

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 20/5

05:50-15:15

1 stop14h 25m

Philadelphia

Tue 3/6

18:00-12:10

2 stops13h 10m

£544

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Mon 14/7

06:00-19:29

2 stops18h 29m

Philadelphia

Mon 28/7

13:25-16:10

2 stops21h 45m

£551

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 9/7

17:40-19:55

2 stops31h 15m

Philadelphia

Tue 15/7

19:55-12:10

1 stop11h 15m

£591

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 25/6

21:15-09:47

3 stops41h 32m

Philadelphia

Tue 22/7

06:13-20:45

2 stops33h 32m

£659

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 9/7

17:40-13:50

2 stops25h 10m

Philadelphia

Thu 17/7

22:25-22:25

1 stop19h 00m

£665

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 28/5

09:25-15:15

1 stop10h 50m

£727

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 28/5

08:40-19:42

2 stops16h 02m

£739

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 21/5

14:25-08:37

2 stops23h 12m

£1,689

Flights are sorted by cheapest return flights first.

Deals found on 13/5

Showing 1-10 of 12 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 9 May 2025.

Booking 30 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 14 May 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.

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 14 May 2025.
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,342 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,278 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Icelandair
7.0
Good
489 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 £511 on this airline. Additional options worth looking into are KLM and American Airlines, starting at £534 and £544 round-trip. British Airways is 12% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Glasgow Intl Airport to Philadelphia one-way?

    £727 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on British Airways and Icelandair, with prices starting from £739 and £1,689, respectively.

  • 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

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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 14 May 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£420Average£572FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£502Average£735FlexibilityNo 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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