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$275+ Cheap flights from Dulles Intl (IAD) to Glasgow

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GLA
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Cheap flight deals from Dulles Intl to Glasgow

Cheapest flights from Dulles Intl to Glasgow
Explore the most affordable flight options available from Dulles Intl to Glasgow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This Mytrip deal was found by Cheapflights users on 3/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Wed 10/72:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/11$583
This Gotogate deal was found by Cheapflights users on 3/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Wed 10/142:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/15$584
This Gotogate deal was found by Cheapflights users on 3/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Tue 5/122:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/14$585
This Mytrip deal was found by Cheapflights users on 3/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:20 pm
IAD
-
GLA
1 stop9h 05m
Icelandair
Sun 10/42:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/10$588
This oojo deal was found by Cheapflights users on 3/15. 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.
Sat 10/108:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Fri 10/162:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/15$591
This FlightHub deal was found by Cheapflights users on 3/15. 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 10/58:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Thu 10/152:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/15$595
This Gotogate deal was found by Cheapflights users on 3/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:20 pm
IAD
-
GLA
1 stop9h 05m
Icelandair
Mon 9/72:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/13$601
This FlightHub deal was found by Cheapflights users on 3/11. 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 4/278:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Tue 5/52:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/11$602
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Mon 9/72:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/11$603
This CrystalTravel deal was found by Cheapflights users on 3/14. 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.
Wed 8/198:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Sat 8/292:20 pm
GLA
-
IAD
1 stop12h 55m
Icelandair
Deal found 3/14$604
This oojo deal was found by Cheapflights users on 3/15. 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 9/38:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Tue 9/82:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 3/15$605
This Mytrip deal was found by Cheapflights users on 3/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:20 pm
IAD
-
PIK
2 stops23h 00m
Multiple Airlines
Sat 5/911:20 am
PIK
-
IAD
2 stops29h 15m
Multiple Airlines
Deal found 3/14$874

Find flight deals from Dulles Intl to Glasgow

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Glasgow (GG1). 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 March 15, 2026.

Round-trip from

$585
(Gotogate)

One-way from

$275
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$627
From Washington, D.C. Dulles Intl to Glasgow
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Glasgow
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Glasgow 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 March 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Glasgow that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Mon 4/13

6:10 pm-4:10 pm

1 stop17h 00m

Glasgow Intl

Mon 4/20

6:00 am-3:35 pm

1 stop14h 35m

$775

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 5/7

1:32 pm-4:10 pm

2 stops21h 38m

Glasgow Intl

Thu 5/14

9:10 am-3:35 pm

1 stop11h 25m

$778

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 5/6

12:45 pm-8:25 am

2 stops14h 40m

Glasgow Intl

Mon 5/11

1:30 pm-3:35 pm

1 stop31h 05m

$779

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 5/10

5:40 pm-4:10 pm

1 stop17h 30m

Glasgow Intl

Wed 5/20

6:00 am-10:56 pm

2 stops21h 56m

$783
Quickest round-trip

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 5/7

1:32 pm-8:25 am

2 stops13h 53m

Glasgow Intl

Thu 5/14

9:10 am-6:53 pm

2 stops14h 43m

$788

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 4/7

5:55 pm-4:45 pm

1 stop17h 50m

Glasgow Intl

Mon 4/13

5:25 pm-4:05 pm

1 stop27h 40m

$797

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 5/9

11:15 am-9:40 am

2 stops17h 25m

Glasgow Intl

Sun 5/17

6:00 am-3:35 pm

1 stop14h 35m

$844

Washington, D.C.Glasgow

IAD - PIK

IADPIK

Washington, D.C. Dulles Intl

Thu 4/30

1:20 pm-5:20 pm

2 stops23h 00m

Glasgow Prestwick

Sat 5/9

11:20 am-11:35 am

2 stops29h 15m

$874

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 4/9

6:00 am-8:25 am

2 stops21h 25m

Glasgow Intl

Wed 4/15

9:10 am-11:03 pm

2 stops18h 53m

$903

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 5/12

7:38 pm-4:10 pm

2 stops15h 32m

Glasgow Intl

Tue 5/26

6:00 am-3:35 pm

1 stop14h 35m

$932

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 32 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Glasgow

Have a flexible travel schedule? Discover the best time to fly to Glasgow 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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Glasgow. Price data was last updated on March 13, 2026.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Glasgow is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow (average of $495). Flying from Washington, D.C. Dulles Intl Airport to Glasgow in June is currently the most expensive (average of $646). 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.

What is the cheapest time of day to fly from IAD to GLA?

Find hourly flight availability from Dulles Intl to Glasgow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 15, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Glasgow as you normally would.

Reviews of airlines servicing Glasgow

Get insights into the airlines that provide service to Glasgow. 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. Reviews last updated March 15, 2026.
Read reviews from past customers who have flown Aer Lingus,Icelandair, andLufthansa from Washington, D.C. Dulles Intl Airport to Glasgow. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,477 reviews

Crew

8.1

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Overall

7.2

Food

6.6

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
1,477 reviews
Aer Lingus
7.2
Good
1,477 reviews

Crew

8.1

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Overall

7.2

Food

6.6

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
622 reviews
Aer Lingus
7.2
Good
1,477 reviews

Crew

8.1

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Overall

7.2

Food

6.6

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
7,851 reviews
Aer Lingus
7.2
Good
1,477 reviews

Crew

8.1

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Overall

7.2

Food

6.6

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
7,794 reviews
Aer Lingus
7.2
Good
1,477 reviews

Crew

8.1

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Overall

7.2

Food

6.6

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. 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?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Glasgow in 17h. Fly via KLM, Delta, or Virgin Atlantic to get the fastest option. Washington, D.C. Dulles Intl Airport and Glasgow are separated by a distance of 3426 mi. This flight may include one or multiple stops.

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

    Icelandair, at $508, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Glasgow.Alternate airlines to your destination round-trip include British Airways and Lufthansa. Icelandair is currently priced 29% below the average price you’ll pay for this route.

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

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

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

    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.

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Glasgow 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?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow (average of $495). Flying from Washington, D.C. Dulles Intl Airport to Glasgow in June is currently the most expensive (average of $646). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Dulles Intl to Glasgow

Discover the top 7 airlines that operate flights from Dulles Intl to Glasgow. 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 March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$508Average$656FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$523Average$776FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$612Average$926FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$621Average$904FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$652Average$755FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$740Average$1,061FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$920Average$990FlexibilityNo cancel feeOn-time71%

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