$923 Cheap Flights from Glasgow (GLA) to Sun Valley (SUN)

View $923 flight on Tue, Jun 2, 2026Opens in a new window

Popular airlines from Glasgow International Airport (GLA) to Sun Valley, ID (SUN-Friedman Memorial)

Cheap Flights from Glasgow to Sun Valley (GLA-SUN)

Prices were available within the past 7 days and start at $923 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Glasgow (GLA) to Sun Valley (SUN)
Origin airport
Glasgow Intl.
Destination airport
Friedman Memorial
Distance
4451 mi

Glasgow to Sun Valley Flights

The cheapest times to fly from Glasgow to Sun Valley

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

 

The best time to book a flight from Glasgow to Sun Valley

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

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 Sun Valley in 2025. You can also book with separate airlines for your outbound and return journeys, from $923 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 Sun Valley 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 Sun Valley 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 Friedman Memorial Airport (SUN) cost?
Secure a cheap one-way flight from $923 or cheap return flight from Glasgow Intl. Airport (GLA) to Friedman Memorial Airport (SUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Glasgow Intl. Airport (GLA) to Friedman Memorial Airport (SUN)?
is the least expensive month to fly from GLA to SUN. Avoiding peak travel times is often the key to landing a great deal.
What is the cheapest airline that flies from Glasgow Intl. Airport (GLA) to Friedman Memorial Airport (SUN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest GLA to SUN flight.
How many flights per day from Glasgow Intl. Airport (GLA) to Friedman Memorial Airport (SUN)?
You'll have to take a flight with a layover when traveling from Glasgow Intl. Airport (GLA) to Friedman Memorial Airport (SUN). There are no daily direct flights on this route. However, simply 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 GLA to SUN?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, airline and other factors.*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 Friedman Memorial Airport (SUN)?
To land at Friedman Memorial Airport (SUN) on schedule, opt for a flight that takes off from Glasgow Intl. Airport (GLA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Friedman Memorial Airport (SUN) last-minute?
Last-minute bookings from GLA to SUN are typically more expensive. To secure the lowest prices, start searching for flights as soon as possible. That said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a GLA to SUN flight and hotel package?
You'll generally save money by booking a GLA to SUN 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 place. After choosing your ideal flights and accommodations, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Glasgow Intl. Airport (GLA) to Friedman Memorial Airport (SUN)?
In most cases, you're able to reschedule or cancel your GLA to SUN flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, head to our Customer Service portal.

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*Available to One Key members.