£428 Cheap Flights from Glasgow Intl (GLA) to Washington Dulles (IAD)

Q: How much are return flights from Glasgow Intl to Washington Dulles?

The best price we found for a return flight from Glasgow Intl to Washington Dulles is £428. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Q: Which airlines fly direct from Glasgow Intl to Washington Dulles?

Currently, there are no airlines that fly direct from Glasgow Intl to Washington Dulles. But we found flights with one or more stops from £428.

Q: How many flights are there a week from Glasgow Intl to Washington Dulles?

As of May 2025, there are no flights flying from Glasgow Intl to Washington Dulles.

Q: When is the cheapest time to fly from Glasgow Intl to Washington Dulles?

The cheapest month to fly from Glasgow Intl to Washington Dulles is usually October.

Q: Which upcoming date is cheapest to fly from Glasgow Intl Airport to Washington Dulles Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Glasgow Intl Airport to Washington Dulles Airport on Thursday, 2 October 2025 .

Q: Can I get a direct flight from Glasgow Intl Airport to Washington Dulles Airport?

No airlines currently offer direct flights between Glasgow Intl Airport and Washington Dulles Airport. Most routes have one or more stops.

Q: How can I find the best flight deal to Washington Dulles?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

Q: When is the best time to book flights to Washington D.C.?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Q: Which is the cheapest airline to fly from Glasgow Intl Airport to Washington Dulles with?

Currently, Ryanair offers the cheapest flight tickets to Washington Dulles.

Compare Glasgow Intl to Washington Dulles flight deals

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Flight deals from Glasgow Intl to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Glasgow Intl to Washington Dulles? Find the lowest prices on one-way and return tickets right here.

Washington D.C..£428 per passenger.Departing Thu, 2 Oct, returning Tue, 7 Oct.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Thu, 2 Oct, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 7 Oct, arriving in Glasgow Intl.Price includes taxes and charges.From £428, select.

Washington D.C..£438 per passenger.Departing Tue, 2 Sep, returning Tue, 9 Sep.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Tue, 2 Sep, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 9 Sep, arriving in Glasgow Intl.Price includes taxes and charges.From £438, select.

Washington D.C..£461 per passenger.Departing Sun, 8 Jun, returning Thu, 14 Aug.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Sun, 8 Jun, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Thu, 14 Aug, arriving in Glasgow Intl.Price includes taxes and charges.From £461, select.

Washington D.C..£465 per passenger.Departing Tue, 26 Aug, returning Tue, 2 Sep.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Tue, 26 Aug, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 2 Sep, arriving in Glasgow Intl.Price includes taxes and charges.From £465, select.

Washington D.C..£467 per passenger.Departing Mon, 23 Jun, returning Tue, 22 Jul.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Mon, 23 Jun, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 22 Jul, arriving in Glasgow Intl.Price includes taxes and charges.From £467, select.

Washington D.C..£469 per passenger.Departing Fri, 7 Nov, returning Wed, 12 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Glasgow Intl on Fri, 7 Nov, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 12 Nov, arriving in Glasgow Intl.Price includes taxes and charges.From £469, select.

Washington D.C..£471 per passenger.Departing Sat, 6 Dec, returning Thu, 11 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Glasgow Intl on Sat, 6 Dec, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Thu, 11 Dec, arriving in Glasgow Intl.Price includes taxes and charges.From £471, select.

Washington D.C..£471 per passenger.Departing Sat, 25 Oct, returning Sat, 6 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Glasgow Intl on Sat, 25 Oct, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 6 Dec, arriving in Glasgow Intl.Price includes taxes and charges.From £471, select.

The cheapest month to fly from Glasgow Intl Airport to Washington Dulles Airport

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Glasgow Intl Airport to Washington Dulles Airport flight prices forecast over the next 12 months.

May

Jun

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Oct

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Cheapest month:October

Most expensive month:May

Glasgow Intl to Washington Dulles: Alternative routes

Compare routes from Glasgow Intl to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Glasgow to Washington D.C.: Flight information

The things to know before you go.

Cheapest flight found	£428
Cheapest month to fly	October

Finding cheap flights from Glasgow Intl to Washington Dulles: Frequently asked questions

How much are return flights from Glasgow Intl to Washington Dulles?

Which airlines fly direct from Glasgow Intl to Washington Dulles?

How many flights are there a week from Glasgow Intl to Washington Dulles?

When is the cheapest time to fly from Glasgow Intl to Washington Dulles?

Which upcoming date is cheapest to fly from Glasgow Intl Airport to Washington Dulles Airport on?

Can I get a direct flight from Glasgow Intl Airport to Washington Dulles Airport?

How can I find the best flight deal to Washington Dulles?

When is the best time to book flights to Washington D.C.?

Which is the cheapest airline to fly from Glasgow Intl Airport to Washington Dulles with?

Flying from Glasgow International Airport (GLA) to Washington Dulles International Airport (IAD): what you need to know

The timezone in Washington DC is UTC-4, which is four hours behind Glasgow.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to board your GLA to IAD flight.
During popular months such as June, it's a good idea to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you fly during a peak period in general.
Think about adding a stopover when booking your ticket from Glasgow International Airport to Washington Dulles International Airport. Simply deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Here are some options between GLA and IAD:
- Keflavik International Airport
- Dublin Airport
- London Heathrow Airport

How to find the cheapest flights from Glasgow International Airport (GLA) to Washington Dulles International Airport (IAD)

The cheapest price we've found for a one-way Glasgow International Airport to Washington Dulles International Airport flight is £258. A return ticket is currently £428. Depending on the availability and when you book, these fares could change.
Don't leave everything to the last minute. You're more likely to find cheap tickets from GLA to IAD if you book in advance. Airlines often offer some terrific early bird discounts.
If you can be flexible with your trip dates, try using the 'Whole month' search tool. It'll find the lowest price across every month when searching for your flight from Glasgow International Airport to Washington Dulles International Airport.
Finding cheap flights from GLA to IAD is easy with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as a new discounted fare appears.
Find the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Glasgow International Airport to Washington Dulles International Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Glasgow International Airport (GLA)

70.07% of flights that depart Glasgow International Airport reach their destination on time.
To get to Glasgow International Airport from central Glasgow, it'll take about 15 minutes if you're going by car. Of course, this depends on traffic. It's approximately 9 miles from the airport to the city centre.
The journey on public transport takes roughly 35 minutes.
Get your trip off to a leisurely start by staying near GLA. Whether you're catching an early flight from Glasgow International Airport to Washington Dulles International Airport or just don't want to be rushed, these hotels are the answer:

Arriving at Washington Dulles International Airport (IAD)

The last thing you want is a lengthy journey to your hotel if you're getting in late on a Glasgow International Airport to Washington Dulles International Airport flight. Reserve one of these accommodation options near IAD instead:
Hit the road running by picking up a Washington Dulles International Airport rental car. Grab your wheels from Dollar, Thrifty or Sixt and explore beyond Washington DC's main sights.
Lock in the lowest price by booking your ride from Washington Dulles International Airport about one week ahead of your departure.

Getting from Washington Dulles International Airport (IAD) to central Washington DC

You'll find IAD at 1 Saarinen Circle.
Washington Dulles International Airport is approximately 35 miles from central Washington DC. The drive time takes around 50 minutes.
It takes around 3 hours 25 minutes when travelling by public transport.

When to fly to Washington Dulles International Airport (IAD)

April is the busiest month for flights from Glasgow International Airport to Washington Dulles International Airport. To skip the crowds, visit Washington DC in January.
Book your flight from Glasgow International Airport to Washington Dulles International Airport for July if you want to go to Washington DC during its warmest month. Expect temperatures of between 19ºC (66ºF) and 33ºC (91ºF).
If you'd rather travel in cooler conditions, search for a cheap ticket from GLA to IAD in January. Temperatures average between -6ºC (21ºF) and 10ºC (50ºF) then.

Explore more of United States

New York is just one of the many places in United States waiting to be explored once you've seen Washington DC. Around 200 miles away to the north-east, top sights here include Statue of Liberty, Central Park and Empire State Building.
Around 120 miles north-east of Washington DC, Philadelphia is another favourite stop in United States. Start your sightseeing at Liberty Bell, Independence Hall and Philadelphia Museum of Art.