GLA - IAD

$399 Find Cheap Flights from Glasgow to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Glasgow to Dulles Intl departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Washington, D.C., as well as popular online travel agencies
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Flight Deals

Cheap Flights from Glasgow to Dulles Intl (GLA-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Glasgow to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Glasgow to Dulles Intl

Tue, Oct 28 - Tue, Nov 4
 Logo
8:25 am - 4:35 pmGLA-IAD
12h 10m1 stop
 Logo
5:05 pm - 7:20 amIAD-GLA
9h 15m1 stop
Thu, Oct 30 - Wed, Nov 5
 Logo
7:15 am - 4:35 pmGLA-IAD
13h 20m1 stop
 Logo
5:05 pm - 10:05 amIAD-GLA
12h 00m1 stop
Sat, Oct 25 - Sun, Nov 2
Aer Lingus Logo
10:10 am - 6:55 pmGLA-IAD
13h 45m1 stop
Aer Lingus Logo
9:00 pm - 11:30 amIAD-GLA
9h 30m1 stop
$567Aer Lingus
Find Deal
Sat, Nov 1 - Fri, Nov 7
 Logo
7:20 am - 4:35 pmGLA-IAD
13h 15m1 stop
 Logo
5:05 pm - 7:50 amIAD-GLA
9h 45m1 stop
Wed, Nov 5 - Fri, Nov 14
Icelandair Logo
12:35 pm - 6:30 pmGLA-IAD
10h 55m1 stop
Icelandair Logo
7:40 pm - 9:55 amIAD-GLA
9h 15m1 stop
$598Icelandair
Find Deal
Thu, Nov 6 - Sat, Nov 15
Icelandair Logo
12:35 pm - 6:30 pmGLA-IAD
10h 55m1 stop
Icelandair Logo
7:40 pm - 9:55 amIAD-GLA
9h 15m1 stop
$621Icelandair
Find Deal
Wed, Oct 29 - Fri, Nov 7
Virgin Atlantic Logo
9:05 am - 11:00 pmGLA-IAD
17h 55m2 stops
Virgin Atlantic Logo
7:59 pm - 8:30 amIAD-GLA
55h 31m2 stops
$651Virgin Atlantic
Find Deal
Tue, Oct 28 - Sat, Nov 8
KLM Logo
9:05 am - 5:05 pmGLA-IAD
12h 00m1 stop
KLM Logo
6:05 pm - 10:05 amIAD-GLA
11h 00m1 stop
$652KLM
Find Deal
Thu, Oct 23 - Mon, Nov 3
Aer Lingus Logo
8:35 am - 6:55 pmGLA-IAD
15h 20m1 stop
Aer Lingus Logo
5:05 pm - 7:50 amIAD-GLA
9h 45m1 stop
$674Aer Lingus
Find Deal
Thu, Oct 30 - Thu, Nov 6
KLM Logo
9:05 am - 5:05 pmGLA-IAD
12h 00m1 stop
KLM Logo
9:25 pm - 4:40 pmIAD-GLA
14h 15m2 stops
$677KLM
Find Deal

Everything you should know

Top airlines
Aer Lingus
Cheapest • from $567 (round-trip)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 12% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$561
Overall average: $768
Multiple Airlines
Tue 10/28Tue 11/4
GLA - IAD • 1 stop
Cheapest one-way
$399
Typical prices: $608-707
Multiple Airlines
Thu 10/30
GLA - IAD • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Booking Insights

KAYAK's insights & trends for Glasgow to Dulles Intl flights

Get data-powered insights and trends into flights from Glasgow to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Glasgow to Washington Dulles Airport?

The average price of all round-trip flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Glasgow to Washington Dulles Airport, you should consider leaving on a Thursday and avoid Wednesdays if you are looking for the best rates. For your return to Glasgow, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport is January, where tickets cost $726 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $940 and $934 respectively.

How far in advance should I book a flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$399
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Glasgow to Washington Dulles Airport

When to book flights from Glasgow to Dulles Intl

Are your dates flexible? Find out the best times to travel from Glasgow to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Glasgow to Washington Dulles Airport flights

  • What is the cheapest flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport was $399 for a one-way ticket and $561 for a round-trip.

  • Do I need a passport to fly between Glasgow and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Glasgow and on arrival in Washington Dulles Airport.

  • Which aircraft models fly most regularly from Glasgow to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Glasgow to Washington Dulles Airport?

    oneworld, and SkyTeam are the airline alliances operating flights between Glasgow and Washington Dulles Airport, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Glasgow to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Glasgow to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Glasgow to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Glasgow is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Glasgow to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Glasgow with another airline. Booking your flights between Glasgow and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Glasgow up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Glasgow to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Glasgow to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Glasgow to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1270 reviews
7.1Comfort
6.9Entertainment
6.5Food
8.0Crew
7.3Boarding
Airline reviews

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

8.0 ExcellentRick, Sep 2025CVG - PHL
Read more Aer Lingus reviews

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

We had a long delay leaving IOM. No food or drunk service as it is a short flight. Shuttled by bus from terminal to plane with packed in conditions on bus.

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

Everything you need to know for your flight from Glasgow to Dulles Intl

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