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

Popular airlines from Glasgow International Airport (GLA) to Washington Dulles Intl. Airport (IAD)

Flights from Glasgow (GLA) to Washington (IAD)
Origin airport
Glasgow Intl.
Destination airport
Washington Dulles Intl.
Distance
3428 mi

Glasgow to Washington Flights

The cheapest times to fly from Glasgow to Washington

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

 

The best time to book a flight from Glasgow to Washington

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

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 Washington 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 Washington 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 Washington 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 Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from GLA to IAD 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 GLA to IAD?
The cheapest flights from GLA to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from GLA to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GLA to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Glasgow Intl. Airport (GLA) to Washington Dulles Intl. Airport (IAD)?
There aren't any daily nonstop flights available from Glasgow Intl. Airport (GLA) to Washington Dulles Intl. Airport (IAD). But you can choose 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.
What day of the week has the most flights from GLA to IAD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often 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 Washington Dulles Intl. Airport (IAD)?
Choose a flight from Glasgow Intl. Airport (GLA) to Washington Dulles Intl. Airport (IAD) 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 Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until right before your break to book a ticket from GLA to IAD generally means paying more. While you may come across some last-minute discounts, there's no guarantee. Keep your travel plans flexible for the best chance of getting a bargain.
Is it cheaper to book a GLA to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a GLA to IAD flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place takes the hassle out of travel planning. Simply secure your flights and select from our wide range of hotels, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Glasgow Intl. Airport (GLA) to Washington Dulles Intl. Airport (IAD)?
In most instances, you're able to cancel or reschedule your GLA to IAD flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further information, go to our Customer Service portal.

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*Available to One Key members.