How long is the flight from Pennsylvania to Glasgow Intl Airport?

Delta, Virgin Atlantic, and KLM can get you from Pennsylvania to Glasgow Intl Airport in just under 10h 30m. Your travel time can differ by up to 8h. There are 3205 mi between Pennsylvania and Glasgow Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Glasgow Intl Airport ranges from 33.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. May is typically the driest time to visit Glasgow Intl Airport when rainfall is around 33.0 mm.

If weather is an important factor for your trip to Glasgow Intl Airport, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Pennsylvania to Glasgow Intl Airport?

When deciding which route to take from Pennsylvania to Glasgow Intl Airport consider Newark - Glasgow Intl, New York John F Kennedy Intl - Glasgow Intl or New York LaGuardia - Glasgow Intl as they are the most popular.

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

When flying from Pennsylvania to Glasgow Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Pennsylvania to Glasgow Intl?

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

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

Yes. Cheapflights offers flight deals from Pennsylvania to Glasgow Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£157+ Cheap Flights from Pennsylvania to Glasgow Intl Airport

Cheap flight deals from Pennsylvania to Glasgow Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Pennsylvania to Glasgow Intl
Explore the most affordable flight options available from Pennsylvania to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Sun 8/1114:20 -

2 stops21h 25m

Sun 15/1122:25 -

2 stops24h 36m

Deal found 12/9£364

Wed 28/1018:45 -

1 stop10h 15m

Wed 4/1109:50 -

1 stop11h 25m

Deal found 13/9£381

Sat 24/1016:55 -

1 stop10h 00m

Mon 2/1107:50 -

1 stop11h 09m

Deal found 13/9£383

Wed 4/1116:25 -

2 stops21h 40m

Sun 8/1121:25 -

2 stops23h 20m

Deal found 12/9£387

Thu 19/1117:00 -

1 stop9h 10m

Mon 23/1107:50 -

1 stop13h 39m

Deal found 12/9£389

Tue 20/1016:45 -

2 stops15h 05m

Sat 31/1020:50 -

2 stops23h 48m

Deal found 10/9£390

Mon 26/1018:45 -

1 stop10h 20m

Mon 2/1107:50 -

1 stop13h 25m

Deal found 11/9£390

Mon 26/1018:00 -

1 stop11h 05m

Mon 2/1107:50 -

1 stop11h 09m

Deal found 11/9£390

Sat 24/1016:55 -

1 stop10h 00m

Tue 3/1109:30 -

1 stop11h 59m

Deal found 13/9£392

Wed 4/1121:15 -

1 stop15h 20m

Mon 9/1107:50 -

1 stop11h 09m

Deal found 10/9£393

Thu 22/1016:55 -

1 stop9h 05m

Mon 2/1107:50 -

1 stop11h 09m

Deal found 11/9£395

Sat 24/1018:35 -

1 stop9h 20m

Mon 2/1107:50 -

1 stop13h 25m

Deal found 11/9£395

Best flights from Pennsylvania to Glasgow Intl
Discover carefully curated flight deals from Pennsylvania to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Wed 7/1016:40 -

1 stop18h 30m

Tue 13/1006:00 -

1 stop11h 33m

Deal found 9/9£509

Tue 27/1018:00 -

1 stop10h 30m

Wed 4/1106:00 -

1 stop13h 00m

Deal found 9/9£509

Wed 4/1118:35 -

1 stop10h 55m

Mon 9/1120:15 -

1 stop22h 25m

Deal found 9/9£516

Wed 7/1019:15 -

1 stop14h 25m

Tue 13/1007:00 -

1 stop15h 25m

Deal found 12/9£523

Tue 27/1020:25 -

1 stop14h 10m

Tue 3/1106:15 -

2 stops16h 32m

Deal found 11/9£523

Wed 17/218:35 -

1 stop10h 55m

Tue 23/209:50 -

2 stops19h 51m

Deal found 10/9£530

Sun 22/1117:00 -

1 stop10h 30m

Wed 2/1217:15 -

1 stop23h 09m

Deal found 13/9£531

Sat 24/1016:55 -

1 stop11h 00m

Wed 4/1108:25 -

1 stop13h 04m

Deal found 13/9£548

Thu 29/1016:01 -

2 stops19h 09m

Thu 5/1120:20 -

1 stop28h 00m

Deal found 14/9£553

Mon 12/1022:25 -

Nonstop6h 45m

Sun 18/1014:00 -

Nonstop7h 40m

Deal found 11/9£578

Fri 18/1219:35 -

1 stop9h 20m

Mon 21/1211:55 -

1 stop11h 30m

Deal found 9/9£861

Wed 14/1017:26 -

2 stops17h 44m

Wed 21/1009:10 -

1 stop10h 25m

Deal found 9/9£513

Tue 20/1019:35 -

1 stop14h 05m

Tue 10/1109:50 -

1 stop11h 25m

Deal found 12/9£516

Tue 2/314:00 -

2 stops17h 45m

Wed 17/309:05 -

1 stop10h 55m

Deal found 14/9£519

Sun 1/1121:45 -

1 stop11h 50m

Mon 9/1120:15 -

1 stop28h 40m

Deal found 13/9£523

Mon 5/1022:10 -

1 stop10h 15m

Sun 11/1006:00 -

1 stop11h 10m

Deal found 12/9£553

Thu 29/1020:25 -

1 stop14h 45m

Thu 5/1117:40 -

1 stop25h 00m

Deal found 13/9£553

Fri 23/1016:00 -

2 stops12h 40m

Wed 4/1113:25 -

2 stops14h 00m

Deal found 13/9£558

Mon 12/1011:30 -

2 stops23h 40m

Mon 19/1013:30 -

1 stop32h 37m

Deal found 11/9£513

Wed 4/1115:38 -

2 stops16h 07m

Wed 11/1109:05 -

2 stops17h 51m

Deal found 10/9£523

Mon 12/1022:25 -

Nonstop6h 45m

Mon 19/1014:00 -

Nonstop7h 40m

Deal found 11/9£578

Mon 26/1017:45 -

2 stops13h 10m

Wed 11/1109:45 -

2 stops16h 14m

Deal found 13/9£532

Tue 10/1116:25 -

2 stops13h 25m

Sun 15/1106:35 -

1 stop14h 40m

Deal found 11/9£557

Thu 5/1119:40 -

1 stop10h 10m

Mon 9/1115:30 -

2 stops28h 25m

Deal found 13/9£572

Sat 31/1017:05 -

2 stops35h 25m

Mon 9/1113:25 -

2 stops39h 01m

Deal found 13/9£520

Wed 2/1218:05 -

1 stop10h 25m

Sat 12/1212:40 -

1 stop12h 15m

Deal found 9/9£560

Fri 9/1022:25 -

Nonstop6h 45m

Mon 12/1014:00 -

Nonstop7h 40m

Deal found 10/9£619

Wed 4/1116:25 -

2 stops13h 05m

Mon 9/1109:45 -

2 stops14h 27m

Deal found 9/9£563

Tue 29/913:15 -

2 stops14h 10m

Tue 6/1009:10 -

2 stops17h 49m

Deal found 9/9£520

Sun 11/1018:45 -

1 stop10h 05m

Sun 18/1021:20 -

1 stop19h 50m

Deal found 11/9£560

Find flight deals from Pennsylvania to Glasgow Intl

Round-trip from	£364
One-way from	£157
Popular in	November
Cheapest in	February
Average price	£635

8/11-15/11
4 total stops
46h 01m total
Pennsylvania to Glasgow

Search Deals

20/9-31/12
2 total stops
35h 40m total
Pennsylvania to Glasgow

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£141 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 10% potential price decrease (£49 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Pennsylvania to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkGlasgow

JFK New York John F Kennedy Intl - GLA Glasgow Intl

JFKGLA

New York John F Kennedy Intl

Mon 28/9

21:15-16:10

1 stop13h 55m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£186

New YorkGlasgow

LGA New York LaGuardia - GLA Glasgow Intl

LGAGLA

New York LaGuardia

Mon 28/9

11:59-08:25

2 stops15h 26m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£188

NewarkGlasgow

EWR Newark - GLA Glasgow Intl

EWRGLA

Newark

Mon 28/9

17:35-07:55

1 stop9h 20m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£189

Washington, D.C.Glasgow

IAD Washington, D.C. Dulles Intl - GLA Glasgow Intl

IADGLA

Washington, D.C. Dulles Intl

Sat 14/11

19:40-09:55

1 stop9h 15m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£206

Fastest return journey

NewarkGlasgow

EWR Newark - GLA Glasgow Intl

EWRGLA

Newark

Tue 22/9

22:25-10:10

Nonstop6h 45m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

NewarkGlasgow

EWR Newark - GLA Glasgow Intl

EWRGLA

Newark

Mon 28/9

22:25-10:10

Nonstop6h 45m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

NewarkGlasgow

EWR Newark - GLA Glasgow Intl

EWRGLA

Newark

Thu 5/11

23:00-07:10

1 stop27h 10m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£228

NewarkGlasgow

EWR Newark - GLA Glasgow Intl

EWRGLA

Newark

Tue 15/12

19:35-09:55

1 stop9h 20m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£229

New YorkGlasgow

JFK New York John F Kennedy Intl - GLA Glasgow Intl

JFKGLA

New York John F Kennedy Intl

Thu 5/11

19:25-12:45

1 stop12h 20m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£230

New YorkGlasgow

JFK New York John F Kennedy Intl - GLA Glasgow Intl

JFKGLA

New York John F Kennedy Intl

Fri 6/11

17:00-07:55

1 stop9h 55m

Glasgow Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£236

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Pennsylvania to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Pennsylvania with our price prediction graph.

EWR-GLA

JFK-GLA

LGA-GLA

IAD-GLA

PHL-GLA

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 Pennsylvania to Glasgow Intl Airport

USPA-GLA

EWR-GLA

JFK-GLA

LGA-GLA

IAD-GLA

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

Currently, February is the cheapest month in which you can book a flight from Pennsylvania to Glasgow Intl Airport (average of £489). Flying from Pennsylvania to Glasgow Intl Airport in November is currently the most expensive (average of £1,314). 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 Pennsylvania to Glasgow Intl Airport?

Airfare is below average for this route at the moment.

Pennsylvania to Glasgow Intl Airport flights typically cost between £560 and £821 in December.
The cheapest return price found within the last 5 days was £457 on Multiple Airlines (2 Dec–8 Dec).

Related info for your journey

How long is the flight from Pennsylvania to Glasgow Intl Airport?
Delta, Virgin Atlantic, and KLM can get you from Pennsylvania to Glasgow Intl Airport in just under 10h 30m. Your travel time can differ by up to 8h. There are 3205 mi between Pennsylvania and Glasgow Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from Pennsylvania to Glasgow Intl Airport?
When deciding which route to take from Pennsylvania to Glasgow Intl Airport consider Newark - Glasgow Intl, New York John F Kennedy Intl - Glasgow Intl or New York LaGuardia - Glasgow Intl as they are the most popular.
Can I find deals for flights from Pennsylvania to Glasgow Intl that include hotel bookings?
Yes. In addition to deals on Pennsylvania to Glasgow Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Pennsylvania to Glasgow Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Glasgow Intl.
Can I find deals for business class flights from Pennsylvania to Glasgow Intl?
Yes. Cheapflights offers flight deals from Pennsylvania to Glasgow Intl 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 Pennsylvania to Glasgow Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Pennsylvania to Glasgow Intl Airport (average of £489). Flying from Pennsylvania to Glasgow Intl Airport in November is currently the most expensive (average of £1,314). 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

Paisley

Kilmarnock

Arrochar

Dunoon

East Kilbride

Helensburgh

Largs

Clydebank

Renfrew

Inveraray

Rothesay

Alexandria

Glencoe

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Scotland

Flights by cabin class

Glasgow Intl flight routes

Other flight options

Popular flights

Alternative routes for Pennsylvania to Glasgow Intl

Newark to Glasgow Intl flights

John F Kennedy Intl to Glasgow Intl flights

Boston to Glasgow Intl flights

LaGuardia to Glasgow Intl flights

O'Hare Intl to Glasgow Intl flights

Dulles Intl to Glasgow Intl flights

Baltimore to Glasgow Intl flights

San Diego to Glasgow Intl flights

Nashville to Glasgow Intl flights

Detroit to Glasgow Intl flights

Los Angeles to Glasgow Intl flights

Orlando to Glasgow Intl flights

Denver to Glasgow Intl flights

Dallas/Fort Worth to Glasgow Intl flights

San Francisco to Glasgow Intl flights

Atlanta to Glasgow Intl flights

Seattle to Glasgow Intl flights

Philadelphia to Glasgow Intl flights

Portland to Glasgow Intl flights

Minneapolis to Glasgow Intl flights

Miami to Glasgow Intl flights

Charlotte to Glasgow Intl flights

George Bush Intcntl to Glasgow Intl flights

Raleigh to Glasgow Intl flights

Sky Harbor Intl to Glasgow Intl flights

Indianapolis to Glasgow Intl flights

Pittsburgh to Glasgow Intl flights

Tampa to Glasgow Intl flights

Ontario to Glasgow Intl flights

Austin to Glasgow Intl flights

Fort Myers to Glasgow Intl flights

Sacramento to Glasgow Intl flights

Columbus to Glasgow Intl flights

Cincinnati to Glasgow Intl flights

Buffalo to Glasgow Intl flights

Norfolk to Glasgow Intl flights

Fort Lauderdale to Glasgow Intl flights

Las Vegas to Glasgow Intl flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Pennsylvania to Glasgow Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Pennsylvania to Glasgow Intl 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 Pennsylvania to Glasgow Intl with no change fees?

Certainly. Search results for flights to Glasgow Intl from Pennsylvania shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Pennsylvania to Glasgow Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.

Cheap flights from Pennsylvania to Glasgow Intl Airport from £157

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Pennsylvania to Glasgow Intl

Cheapest flights from Pennsylvania to Glasgow IntlExplore the most affordable flight options available from Pennsylvania to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Explore the most affordable flight options available from Pennsylvania to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Best flights from Pennsylvania to Glasgow IntlDiscover carefully curated flight deals from Pennsylvania to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Discover carefully curated flight deals from Pennsylvania to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Direct flights from Pennsylvania to Glasgow IntlExplore direct flight options from Pennsylvania to Glasgow Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2026.

Explore direct flight options from Pennsylvania to Glasgow Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2026.

Last-minute flights from Pennsylvania to Glasgow IntlDiscover last-minute flight deals from Pennsylvania to Glasgow Intl. Data last updated 14 September 2026 and is based on user searches.

Discover last-minute flight deals from Pennsylvania to Glasgow Intl. Data last updated 14 September 2026 and is based on user searches.

One-way flights from Pennsylvania to Glasgow IntlSearch for one-way flight options from Pennsylvania to Glasgow Intl. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.

Search for one-way flight options from Pennsylvania to Glasgow Intl. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.

Find flight deals from Pennsylvania to Glasgow Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Pennsylvania to Glasgow Intl Airport that are best for you.

Best time to book a flight from Pennsylvania to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Pennsylvania with our price prediction graph.

Cheapflights Insights

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

How much does it cost for a return flight from Pennsylvania to Glasgow Intl Airport?

Airfare is below average for this route at the moment.

Pennsylvania to Glasgow Intl Airport flights typically cost between £560 and £821 in December.The cheapest return price found within the last 5 days was £457 on Multiple Airlines (2 Dec–8 Dec).

Related info for your journey

How long is the flight from Pennsylvania to Glasgow Intl Airport?

What are the most popular routes from Pennsylvania to Glasgow Intl Airport?

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

How can I find direct flights from Pennsylvania to Glasgow Intl?

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

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

Travelling to a place near Glasgow Intl Airport?

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 Pennsylvania to Glasgow Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Glasgow Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Scotland

Book a non-stop flight to one of these other cities located in Scotland.

Search flights from Pennsylvania to Glasgow Intl by cabin class

Find flights from Pennsylvania to Glasgow Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Glasgow Intl

Explore flights to Glasgow Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 September 2026.

Pennsylvania and Glasgow Intl flights

Browse other Pennsylvania and Glasgow Intl flight options. Last updated on 14 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Pennsylvania to Glasgow Intl
Explore the most affordable flight options available from Pennsylvania to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Best flights from Pennsylvania to Glasgow Intl
Discover carefully curated flight deals from Pennsylvania to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Direct flights from Pennsylvania to Glasgow Intl
Explore direct flight options from Pennsylvania to Glasgow Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2026.

Last-minute flights from Pennsylvania to Glasgow Intl
Discover last-minute flight deals from Pennsylvania to Glasgow Intl. Data last updated 14 September 2026 and is based on user searches.

One-way flights from Pennsylvania to Glasgow Intl
Search for one-way flight options from Pennsylvania to Glasgow Intl. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.

Pennsylvania to Glasgow Intl Airport flights typically cost between £560 and £821 in December.
The cheapest return price found within the last 5 days was £457 on Multiple Airlines (2 Dec–8 Dec).