$729 Cheap Flights from Glasgow (GLA) to Philadelphia (PHL)

View $729 flight on Wed, Mar 11, 2026Opens in a new window

Popular airlines from Glasgow International Airport (GLA) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Glasgow to Philadelphia (GLA-PHL)

Prices were available within the past 7 days and start at $729 for one-way flights and $650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Thu, Sep 4 - Sun, Sep 7
GLA
Glasgow
PHL
Philadelphia
$650 Roundtrip, found 2 days ago
$650
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Thu, Sep 4 from Glasgow to Philadelphia, returning Sun, Sep 7, priced at $650 found 2 days ago
Aer Lingus
Mon, Sep 15 - Mon, Sep 22
GLA
Glasgow
PHL
Philadelphia
$668 Roundtrip, found 2 days ago
$668
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Mon, Sep 15 from Glasgow to Philadelphia, returning Mon, Sep 22, priced at $668 found 2 days ago
Aer Lingus
Tue, Oct 7 - Wed, Oct 15
GLA
Glasgow
PHL
Philadelphia
$715 Roundtrip, found 4 days ago
$715
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Oct 7 from Glasgow to Philadelphia, returning Wed, Oct 15, priced at $715 found 4 days ago
Aer Lingus
Thu, Sep 4 - Sun, Sep 7
GLA
Glasgow
PHL
Philadelphia
$716 Roundtrip, found 2 days ago
$716
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Thu, Sep 4 from Glasgow to Philadelphia, returning Sun, Sep 7, priced at $716 found 2 days ago
British Airways
Wed, Oct 29 - Thu, Nov 6
GLA
Glasgow
PHL
Philadelphia
$730 Roundtrip, just found
$730
Roundtrip
just found
Select British Airways flight, departing Wed, Oct 29 from Glasgow to Philadelphia, returning Thu, Nov 6, priced at $730 just found
British Airways
Tue, Oct 7 - Wed, Oct 15
GLA
Glasgow
PHL
Philadelphia
$734 Roundtrip, found 4 days ago
$734
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Oct 7 from Glasgow to Philadelphia, returning Wed, Oct 15, priced at $734 found 4 days ago
British Airways
Wed, Oct 29 - Thu, Nov 6
GLA
Glasgow
PHL
Philadelphia
$735 Roundtrip, just found
$735
Roundtrip
just found
Select British Airways flight, departing Wed, Oct 29 from Glasgow to Philadelphia, returning Thu, Nov 6, priced at $735 just found
American Airlines
Wed, Oct 29 - Thu, Nov 6
GLA
Glasgow
PHL
Philadelphia
$751 Roundtrip, just found
$751
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 29 from Glasgow to Philadelphia, returning Thu, Nov 6, priced at $751 just found
Virgin Atlantic
Tue, Oct 7 - Wed, Oct 15
GLA
Glasgow
PHL
Philadelphia
$796 Roundtrip, found 4 days ago
$796
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Tue, Oct 7 from Glasgow to Philadelphia, returning Wed, Oct 15, priced at $796 found 4 days ago
Iberia
Sun, Jan 25 - Mon, Feb 2
GLA
Glasgow
PHL
Philadelphia
$814 Roundtrip, found 1 day ago
$814
Roundtrip
found 1 day ago
Select Iberia flight, departing Sun, Jan 25 from Glasgow to Philadelphia, returning Mon, Feb 2, priced at $814 found 1 day ago

Find the cheapest month to fly from Glasgow (GLA) to Philadelphia (PHL)

February is typically the cheapest month to fly

From $520 - $1,197 per traveler.

Graph displaying average flight prices per month

Flights from Glasgow (GLA) to Philadelphia (PHL)
Origin airport
Glasgow Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Aer Lingus, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Virgin Atlantic
Roundtrip price
$649
Distance
3299 mi

Glasgow to Philadelphia Flights

The cheapest times to fly from Glasgow to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Glasgow to Philadelphia are during the month of September. You can find some of the cheapest flights from Glasgow to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Glasgow to Philadelphia

Sunday is one of the best days to book for cheap flights from Glasgow to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Glasgow to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Glasgow to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $729 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Glasgow to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Glasgow to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL) cost?
Snag a cheap one-way flight from $729 or cheap return flight from $650 from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from GLA to PHL is September, when demand is low. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL)?
To find the cheapest airline that'll fly you from GLA to PHL, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL)?
Direct flights from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GLA to PHL?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a number of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL)?
Opt for a flight from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your ticket from GLA to PHL shortly before your trip is usually more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a GLA to PHL flight and hotel package?
You'll generally save money by securing a GLA to PHL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Glasgow Intl. Airport (GLA) to Philadelphia Intl. Airport (PHL)?
Typically, it's possible to cancel or reschedule your GLA to PHL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.