GLA - IAD

$349 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 1/8. 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, 0 bags

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

Sun, Dec 14 - Sun, Dec 21
Multiple Airlines Logo
7:25 am - 3:35 pmGLA-IAD
13h 10m1 stop
Multiple Airlines Logo
5:05 pm - 7:55 amIAD-GLA
9h 50m1 stop
$606Multiple Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 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
$615Icelandair
Find Deal
Tue, Nov 25 - Tue, Dec 16
Icelandair Logo
12:35 pm - 6:30 pmGLA-IAD
10h 55m1 stop
Icelandair Logo
7:40 pm - 9:55 amIAD-GLA
9h 15m1 stop
$618Icelandair
Find Deal
Thu, Dec 11 - Sun, Dec 14
Aer Lingus Logo
8:20 am - 3:35 pmGLA-IAD
12h 15m1 stop
Aer Lingus Logo
9:00 pm - 4:00 pmIAD-GLA
14h 00m1 stop
$714Aer Lingus
Find Deal
Sun, Dec 7 - Sun, Jan 11
Aer Lingus Logo
12:00 pm - 7:30 pmGLA-IAD
12h 30m1 stop
Aer Lingus Logo
5:05 pm - 7:50 amIAD-GLA
9h 45m1 stop
$781Aer Lingus
Find Deal
Wed, Nov 26 - Wed, Dec 3
Lufthansa Logo
12:50 pm - 8:15 pmGLA-IAD
12h 25m1 stop
Lufthansa Logo
5:15 pm - 12:05 pmIAD-GLA
13h 50m1 stop
$933Lufthansa
Find Deal
Wed, Nov 26 - Wed, Dec 3
Lufthansa Logo
12:50 pm - 8:15 pmGLA-IAD
12h 25m1 stop
Lufthansa Logo
5:40 pm - 12:05 pmIAD-GLA
13h 25m2 stops
$960Lufthansa
Find Deal
Mon, Dec 1 - Sun, Dec 7
KLM Logo
5:20 pm - 4:05 pmGLA-IAD
27h 45m1 stop
KLM Logo
6:05 pm - 12:45 pmIAD-GLA
13h 40m1 stop
$967KLM
Find Deal
Wed, Apr 29 - Sun, May 3
American Airlines Logo
10:35 am - 5:25 pmGLA-IAD
11h 50m1 stop
American Airlines Logo
2:12 pm - 10:30 amIAD-GLA
15h 18m2 stops
$971American Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 14
KLM Logo
9:05 am - 7:19 pmGLA-IAD
15h 14m2 stops
KLM Logo
9:25 pm - 4:35 pmIAD-GLA
14h 10m2 stops
$1,020KLM
Find Deal

Everything you should know

Top airlines
Icelandair
Cheapest • from $615 (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 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 14% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$606
Overall average: $883
Multiple Airlines
Sun 12/14Sun 12/21
GLA - IAD • 1 stop
Cheapest one-way
$349
Typical prices: $803-$1,024
Multiple Airlines
Thu 1/8
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 October, where tickets cost $701 (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 $919 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 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$349
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 8% 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 $349 for a one-way ticket and $606 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.

  • 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 1365 reviews
6.6Food
8.0Crew
6.9Entertainment
7.1Comfort
7.4Boarding
Airline reviews

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

8.0 ExcellentAnonymous, Oct 2025EDI - DUB
Read more Aer Lingus reviews

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

I liked that I went thru customs in Dublin instead of having to do that in LA.

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

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

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