Cheap Flights from Washington (IAD) to Glasgow (PIK)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Glasgow (PIK-Prestwick)

Alternative airports near Glasgow

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Glasgow Intl. GLA. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $647
GLA
Glasgow Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $647
Flights from Washington (IAD) to Glasgow (PIK)
Origin airport
Washington Dulles Intl.
Destination airport
Prestwick
Distance
3426 mi

Washington to Glasgow Flights

The cheapest times to fly from Washington to Glasgow

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

 

The best time to book a flight from Washington to Glasgow

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

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 Washington to Glasgow 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 Washington to Glasgow 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 Washington to Glasgow 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 Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK) cost?
Get a cheap one-way flight or cheap return flight from Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK) 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 Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK)?
is the most affordable month to fly from IAD to PIK. Traveling during quieter months is often the key to finding better fares.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK)?
To find the cheapest airline flying from IAD to PIK, use Expedia's filter tool. Tailor 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 discover the cheapest flight right away.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK)?
There aren't any daily direct flights from Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from IAD to PIK?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on various factors, including 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 Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK)?
To touch down at Prestwick Airport (PIK) on schedule, select a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK) last-minute?
Last-minute bookings from IAD to PIK are typically more expensive. For the best prices, start looking for flights early. That said, if you're flexible with your travel dates, you may land a cheap fare right before your journey.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Prestwick Airport (PIK)?
If you booked your IAD to PIK flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.