Cheap Flights from Glasgow (GLA) to Portsmouth (PSM)

Popular airlines from Glasgow International Airport (GLA) to Portsmouth, NH (PSM-Portsmouth Intl.)

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Flights from Glasgow (GLA) to Portsmouth (PSM)
Origin airport
Glasgow Intl.
Destination airport
Portsmouth Intl.
Distance
2981 mi

Glasgow to Portsmouth Flights

The cheapest times to fly from Glasgow to Portsmouth

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

 

The best time to book a flight from Glasgow to Portsmouth

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

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 Portsmouth 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 Portsmouth 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 Portsmouth 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 Portsmouth Intl. Airport (PSM) cost?
Get a cheap one-way flight or cheap return flight from Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM) 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 Portsmouth Intl. Airport (PSM)?
Planning your getaway for can help you save, as it's the cheapest month for flights between GLA and PSM. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from GLA to PSM. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM)?
You'll have to hop on a flight with a layover when traveling from Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from GLA to PSM?
You'll usually 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 Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM)?
To avoid possible delays on the Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM) route, aim to travel 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 Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM) last-minute?
Booking your flight from GLA to PSM just before your journey is usually more expensive. But if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a GLA to PSM flight and hotel package?
Compared with arranging flights and hotels separately, booking a GLA to PSM flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the hassle out of planning your trip. Simply secure your flights and select from our wide range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Glasgow Intl. Airport (GLA) to Portsmouth Intl. Airport (PSM)?
Typically, you can cancel or modify your GLA to PSM flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more information, visit our Customer Service portal.

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