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Glasgow Intl

$246+ Cheap flights from Dulles Intl (IAD) to Glasgow Intl (GLA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GLA
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from Dulles Intl to Glasgow Intl

Cheapest flights from Dulles Intl to Glasgow Intl
Explore the most affordable flight options available from Dulles Intl to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This oojo deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Wed 3/1112:35 pm
GLA
-
IAD
1 stop10h 55m
Icelandair
Deal found 2/2$496
This Cheapflightsfares deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Mon 3/912:35 pm
GLA
-
IAD
1 stop10h 55m
Icelandair
Deal found 2/4$507
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Tue 4/282:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/3$512
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/217:40 pm
IAD
-
GLA
1 stop10h 15m
Icelandair
Sat 3/281:20 pm
GLA
-
IAD
1 stop10h 10m
Icelandair
Deal found 2/3$522
This oojo deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/228:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Sun 3/292:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/5$527
This oojo deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Wed 5/132:20 pm
GLA
-
IAD
1 stop12h 55m
Icelandair
Deal found 2/4$528
This Cheapflightsfares deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/218:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Sun 3/292:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/3$537
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Wed 4/152:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/3$543
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Mon 5/42:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/3$560
This FlightHub deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Mon 5/112:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/3$564
This CrystalTravel deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Thu 5/142:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 2/4$565

Find flight deals from Dulles Intl to Glasgow Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Glasgow Intl (GLA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$496
(oojo)

One-way from

$246
(oojo)

Popular in

June

Cheapest in

April

Average price

$659
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Glasgow Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Glasgow Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Glasgow Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Glasgow Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Glasgow Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 6, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Glasgow Intl

Route

Depart

Return

Price

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 2/15

6:05 pm-9:55 am

1 stop10h 50m

Glasgow Intl

Sun 2/22

6:05 am-4:05 pm

1 stop15h 00m

$624

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 2/15

6:05 pm-9:55 am

1 stop10h 50m

Glasgow Intl

Sat 2/21

5:20 pm-4:05 pm

1 stop27h 45m

$624

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Mon 3/16

7:59 pm-12:45 pm

2 stops12h 46m

Glasgow Intl

Mon 3/23

5:20 pm-5:05 pm

1 stop27h 45m

$628

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 3/18

1:19 pm-12:45 pm

2 stops19h 26m

Glasgow Intl

Tue 3/24

6:05 am-5:05 pm

1 stop15h 00m

$629

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 3/4

12:24 pm-12:45 pm

2 stops19h 21m

Glasgow Intl

Wed 3/11

9:05 am-5:05 pm

1 stop12h 00m

$631

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 2/28

6:05 pm-10:05 am

1 stop11h 00m

Glasgow Intl

Wed 3/11

6:05 am-11:41 pm

2 stops21h 36m

$634

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 4/2

5:40 pm-12:55 pm

1 stop14h 15m

Glasgow Intl

Wed 4/8

9:10 am-3:35 pm

1 stop11h 25m

$639

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 4/1

6:10 pm-11:10 pm

1 stop24h 00m

Glasgow Intl

Tue 4/7

1:30 pm-3:35 pm

1 stop31h 05m

$639

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Mon 4/13

6:10 pm-12:55 pm

1 stop13h 45m

Glasgow Intl

Sun 4/19

5:00 pm-3:35 pm

1 stop27h 35m

$639

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 4/7

5:40 pm-4:10 pm

1 stop17h 30m

Glasgow Intl

Mon 4/13

4:55 pm-3:35 pm

1 stop27h 40m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 20 results
1
2

Compare providers for flights from Dulles Intl to Glasgow Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Glasgow Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Glasgow Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Glasgow Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Glasgow Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Glasgow Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Glasgow Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Glasgow Intl. Price data was last updated on January 30, 2026.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport (average of $495). Flying from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport in June is currently the most expensive (average of $697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport?

Reviews of airlines servicing Glasgow Intl

Get insights into the airlines that provide service to Glasgow Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Glasgow Intl. Reviews last updated February 6, 2026.
See what other customers who have flown with Aer Lingus, Icelandair, and Lufthansa from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,445 reviews

Overall

7.2

Crew

8.0

Comfort

7.1

Food

6.6

Entertainment

6.9

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Aer Lingus
7.2
Good
1,445 reviews
Aer Lingus
7.2
Good
1,445 reviews

Overall

7.2

Crew

8.0

Comfort

7.1

Food

6.6

Entertainment

6.9

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Icelandair
7.1
Good
606 reviews
Aer Lingus
7.2
Good
1,445 reviews

Overall

7.2

Crew

8.0

Comfort

7.1

Food

6.6

Entertainment

6.9

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Lufthansa
6.8
Okay
7,762 reviews
Aer Lingus
7.2
Good
1,445 reviews

Overall

7.2

Crew

8.0

Comfort

7.1

Food

6.6

Entertainment

6.9

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
British Airways
6.7
Okay
7,716 reviews
Aer Lingus
7.2
Good
1,445 reviews

Overall

7.2

Crew

8.0

Comfort

7.1

Food

6.6

Entertainment

6.9

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Glasgow Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $624, Virgin Atlantic can have you in Glasgow Intl Airport from Washington, D.C. Dulles Intl Airport in 10h 50m. The distance from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport is about 3426 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport round-trip?

    Flying on Icelandair is currently your cheapest option to Glasgow Intl Airport, with prices starting at $508. Additional round-trip tickets that might be worth considering are offered by British Airways and Lufthansa, with the lowest prices starting at $537 and $612, respectively. Users have found that Icelandair is 29% cheaper than the other options available to this destination.

  • Can I find deals for flights from Dulles Intl to Glasgow Intl that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Glasgow Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Glasgow Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Glasgow Intl.

  • Can I find deals for business class flights from Dulles Intl to Glasgow Intl?

    Yes. Cheapflights offers flight deals from Dulles Intl to Glasgow Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport (average of $495). Flying from Washington, D.C. Dulles Intl Airport to Glasgow Intl Airport in June is currently the most expensive (average of $697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Dulles Intl to Glasgow Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Baltimore to Glasgow Intl flights

Top 4 airlines flying from Dulles Intl to Glasgow Intl

Discover the top 4 airlines that operate flights from Dulles Intl to Glasgow Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$508Average$667FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$537Average$696FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$612Average$706FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$710Average$876FlexibilityNo cancel feeOn-timeN/A

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