Cheap Flights from Glasgow (PIK) to London (LHR)

Popular airlines from Glasgow (PIK-Prestwick) to Heathrow Airport (LHR)

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Flights from Glasgow (PIK) to London (LHR)
Origin airport
Prestwick
Destination airport
Heathrow
Distance
327 mi

Glasgow to London Flights

The cheapest times to fly from Glasgow to London

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 London are during the month of . You can find some of the cheapest flights from Glasgow to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Glasgow to London

Sunday is one of the best days to book for cheap flights from Glasgow to London: 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 London

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 London in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 London 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 London 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 Prestwick Airport (PIK) to Heathrow Airport (LHR) cost?
Discover the latest flight deals from PIK to LHR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PIK to LHR?
The cheapest flights from PIK to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Prestwick Airport (PIK) to Heathrow Airport (LHR)?
There aren't any direct flights from Glasgow (PIK-Prestwick) to Heathrow Airport (LHR). However, you'll find other airports that offer nonstop flights. Hop on your plane at Glasgow Intl. Airport (GLA) and travel straight to London without a layover.
What is the cheapest airline that flies from PIK to LHR?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PIK to LHR. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Prestwick Airport (PIK) to Heathrow Airport (LHR)?
You'll have to hop on a flight with a layover if you're traveling from Prestwick Airport (PIK) to Heathrow Airport (LHR). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PIK to LHR?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Prestwick Airport (PIK) to Heathrow Airport (LHR)?
To avoid possible delays on the Prestwick Airport (PIK) to Heathrow Airport (LHR) route, fly before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Prestwick Airport (PIK) to Heathrow Airport (LHR) last-minute?
Booking your ticket from PIK to LHR right before your journey is generally more expensive. However, if you're flexible with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a PIK to LHR flight and hotel package?
Compared with arranging hotels and flights separately, booking a PIK to LHR flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Prestwick Airport (PIK) to Heathrow Airport (LHR)?
Typically, it's possible to cancel or reschedule your PIK to LHR flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.