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Cheap flights from Glasgow to Philadelphia from £333

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — PHL
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Glasgow to Philadelphia are usually found in January or May, booked 13 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Glasgow to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) 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 21 November 2025.

Round-trip from

£598

One-way from

£333

Popular in

July

Cheapest in

January

Average price

£584
British Airways
  • British Airways
  • 14/1-21/1
  • 2 total stops
  • 25h 50m total
  • Glasgow to Philadelphia
Search Deals
8/1
  • 8/1
  • 2 total stops
  • 21h 09m total
  • Glasgow to Philadelphia
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£87 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 November 2025
Search Deals

Find flight deals from Glasgow to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to Philadelphia
Explore the most affordable flight options available from Glasgow to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2025.

Mon 15/1206:35GLA - PHL
1 stop11h 30mBritish Airways
Mon 12/118:35PHL - GLA
1 stop10h 15mBritish Airways
Deal found 19/11£669
Mon 15/1206:35GLA - PHL
1 stop11h 30mAmerican Airlines
Mon 12/116:45PHL - GLA
2 stops13h 00mAmerican Airlines
Deal found 19/11£689
Thu 11/1207:15GLA - PHL
2 stops19h 33mMultiple Airlines
Sat 27/1217:30PHL - GLA
1 stop10h 20mMultiple Airlines
Deal found 19/11£691
Sat 29/1107:20GLA - PHL
1 stop13h 40mMultiple Airlines
Thu 4/1217:30PHL - GLA
1 stop9h 20mMultiple Airlines
Deal found 19/11£693
Thu 18/1216:50GLA - PHL
2 stops23h 31mBritish Airways
Thu 25/1221:15PHL - GLA
2 stops19h 10mBritish Airways
Deal found 20/11£896
Sat 20/1208:40GLA - PHL
2 stops20h 12mBritish Airways
Fri 9/115:45PHL - GLA
2 stops18h 25mBritish Airways
Deal found 19/11£925
Sat 20/1206:35GLA - PHL
1 stop11h 40mMultiple Airlines
Fri 9/116:45PHL - GLA
2 stops15h 20mMultiple Airlines
Deal found 19/11£951

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow 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 21 November 2025.
Use the filters below to find and compare flights from Glasgow to Philadelphia that are best for you.

Fly from

Glasgow

Fly to

Philadelphia

Route

Depart

Return

Price

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 14/1

06:05-16:50

2 stops15h 45m

Philadelphia

Wed 21/1

12:29-09:55

2 stops16h 26m

£629

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 21/4

08:45-15:30

1 stop11h 45m

Philadelphia

Tue 5/5

22:20-16:45

1 stop13h 25m

£630

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 21/4

09:10-19:22

2 stops15h 12m

Philadelphia

Tue 5/5

13:24-08:25

2 stops14h 01m

£630

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Thu 22/1

06:35-13:30

1 stop11h 55m

Philadelphia

Mon 26/1

13:49-10:45

2 stops15h 56m

£641

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Mon 13/4

05:50-16:40

1 stop15h 50m

Philadelphia

Mon 27/4

18:45-10:05

1 stop10h 20m

£646

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 21/4

09:10-21:13

2 stops17h 03m

Philadelphia

Tue 5/5

10:35-13:00

2 stops21h 25m

£648

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Tue 21/4

08:45-20:20

2 stops16h 35m

Philadelphia

Tue 5/5

22:20-14:40

1 stop11h 20m

£648

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Thu 8/1

08:20-00:29

2 stops21h 09m

£333

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Thu 4/12

07:15-16:00

1 stop13h 45m

£406

GlasgowPhiladelphia

GLA - PHL

GLAPHL

Glasgow Intl

Wed 21/1

09:45-16:15

1 stop11h 30m

£438

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 12 results
1
2

Best time to book a flight from Glasgow to Philadelphia

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

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

Use this chart to determine the optimal time to book a return flight from Glasgow to Philadelphia. Price data was last updated on 14 November 2025.

The best time to book flights from Glasgow to Philadelphia is 8 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Glasgow to Philadelphia (average of £326). Flying from Glasgow to Philadelphia in August is currently the most expensive (average of £423). 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 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 21 November 2025.

It’s typically best to fly out from Glasgow to Philadelphia in the morning. Doing so could potentially save you 17% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from Glasgow 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 21 November 2025.
Check out reviews from past customers who have flown with Aer Lingus and British Airways from Glasgow 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
1,377 reviews
Check prices

Entertainment

6.9

Boarding

7.4

Comfort

7.1

Crew

8.0

Overall

7.2

Food

6.6

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,377 reviews
Aer Lingus
7.2
Good
1,377 reviews
Check prices

Entertainment

6.9

Boarding

7.4

Comfort

7.1

Crew

8.0

Overall

7.2

Food

6.6

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
British Airways
6.7
Okay
7,533 reviews
Aer Lingus
7.2
Good
1,377 reviews
Check prices

Entertainment

6.9

Boarding

7.4

Comfort

7.1

Crew

8.0

Overall

7.2

Food

6.6

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

Related info for your journey

Find useful and relevant information for your journey from Glasgow 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?

    Most people fly into Philadelphia (PHL) if they book a flight to Philadelphia from Glasgow. On average, Philadelphia has 0 inbound flights from Glasgow per day from 5 airlines. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • How long is the flight from Glasgow to Philadelphia?

    A quick flight from Glasgow to Philadelphia can take about 11h 45m. Air France provides one of the quickest options available for as low as £630. Airlines will cover a distance of 3297 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Glasgow to Philadelphia is British Airways. Our recent data shows that you can find tickets from as low as £411 on this airline. An additional option worth looking into is Aer Lingus, starting at £489. British Airways is priced at 31% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow 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 to Philadelphia?

    Currently, February is the cheapest month in which you can book a flight from Glasgow to Philadelphia (average of £326). Flying from Glasgow to Philadelphia in August is currently the most expensive (average of £423). 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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Alternative routes for Glasgow to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Glasgow to Philadelphia

Discover the top 5 airlines that operate flights from Glasgow 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 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£369Average£394FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£411Average£588FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£472Average£607FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapest£512Average£619FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£529Average£670FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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

Deals for Glasgow to Philadelphia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Philadelphia?

Millions of users choose and trust Cheapflights to book the best flight deals from Glasgow to Philadelphia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Philadelphia from Glasgow? 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 to Philadelphia become cheaper?

Yes! Start tracking prices for Glasgow 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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