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$246+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GLA
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This CrystalTravel deal was found by Cheapflights users on 1/27. 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.
Tue 2/247:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Tue 3/312:35 pm
GLA
-
IAD
1 stop10h 55m
Icelandair
Deal found 1/27$489
This oojo deal was found by Cheapflights users on 1/26. 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 2/147:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Sat 2/2112:35 pm
GLA
-
IAD
1 stop10h 55m
Icelandair
Deal found 1/26$493
This CrystalTravel deal was found by Cheapflights users on 1/26. 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.
Sat 4/48:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Sun 4/192:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 1/26$494
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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.
Sun 3/17:40 pm
IAD
-
GLA
1 stop9h 15m
Icelandair
Thu 3/512:35 pm
GLA
-
IAD
1 stop10h 55m
Icelandair
Deal found 1/27$506
This oojo deal was found by Cheapflights users on 1/27. 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 4/78:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Mon 4/132:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 1/27$509
This oojo deal was found by Cheapflights users on 1/27. 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 1/27$512
This CrystalTravel deal was found by Cheapflights users on 1/27. 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.
Fri 5/18:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Fri 5/82:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 1/27$520
This CrystalTravel deal was found by Cheapflights users on 1/26. 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.
Mon 4/208:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Thu 4/302:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 1/26$523
This oojo deal was found by Cheapflights users on 1/26. 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 4/308:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Fri 5/82:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 1/26$525
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Sun 5/38:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Fri 5/82:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 1/26$529
This oojo deal was found by Cheapflights users on 1/26. 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 1/26$540
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Tue 2/247:40 pm
IAD
-
GLA
1 stop9h 15m
Multiple Airlines
Tue 3/38:25 am
GLA
-
IAD
2 stops17h 01m
Multiple Airlines
Deal found 1/27$542

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 January 27, 2026.

Round-trip from

$493
(oojo)

One-way from

$246
(oojo)

Popular in

June

Cheapest in

April

Average price

$643
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. 16% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 27, 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

Dulles Intl

Fly to

Glasgow

Route

Depart

Return

Price

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 5/12

8:30 pm-1:25 pm

1 stop11h 55m

Glasgow Intl

Tue 5/26

2:20 pm-7:20 pm

1 stop10h 00m

$623

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Fri 2/27

6:20 pm-9:35 am

1 stop10h 15m

Glasgow Intl

Mon 3/9

7:35 am-4:35 pm

1 stop13h 00m

$630

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Fri 2/27

6:20 pm-9:35 am

1 stop10h 15m

Glasgow Intl

Sun 3/8

11:40 am-8:55 pm

1 stop13h 15m

$630

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 2/26

12:24 pm-8:30 am

2 stops15h 06m

Glasgow Intl

Fri 3/6

1:25 pm-12:21 am

2 stops15h 56m

$635

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 3/11

7:59 pm-4:35 pm

2 stops16h 36m

Glasgow Intl

Mon 3/16

9:05 am-10:59 pm

2 stops17h 54m

$635

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 3/4

12:35 pm-8:30 am

2 stops14h 55m

Glasgow Intl

Thu 3/19

6:05 am-7:19 pm

2 stops17h 14m

$635

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 4/21

6:00 am-8:25 am

2 stops21h 25m

Glasgow Intl

Tue 4/28

9:10 am-11:32 pm

2 stops19h 22m

$649

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 5/9

7:59 pm-4:10 pm

2 stops39h 11m

Glasgow Intl

Thu 6/4

9:10 am-3:35 pm

1 stop11h 25m

$678

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 5/9

7:59 pm-4:10 pm

2 stops39h 11m

Glasgow Intl

Tue 6/2

6:00 am-11:51 am

2 stops34h 51m

$682

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Mon 5/4

5:40 pm-10:05 am

1 stop11h 25m

Glasgow Intl

Mon 6/1

7:35 pm-5:25 pm

1 stop26h 50m

$688

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 24 results
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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 January 23, 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 $694). 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.

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 January 27, 2026.
Read reviews from past customers who have flown Aer Lingus, Icelandair, and Lufthansa 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
1,442 reviews

Crew

8.0

Entertainment

6.9

Food

6.6

Overall

7.2

Comfort

7.1

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,442 reviews
Aer Lingus
7.2
Good
1,442 reviews

Crew

8.0

Entertainment

6.9

Food

6.6

Overall

7.2

Comfort

7.1

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Icelandair
7.1
Good
603 reviews
Aer Lingus
7.2
Good
1,442 reviews

Crew

8.0

Entertainment

6.9

Food

6.6

Overall

7.2

Comfort

7.1

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Lufthansa
6.8
Okay
7,749 reviews
Aer Lingus
7.2
Good
1,442 reviews

Crew

8.0

Entertainment

6.9

Food

6.6

Overall

7.2

Comfort

7.1

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
British Airways
6.7
Okay
7,702 reviews
Aer Lingus
7.2
Good
1,442 reviews

Crew

8.0

Entertainment

6.9

Food

6.6

Overall

7.2

Comfort

7.1

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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 10h 15m. Fly via Icelandair, British Airways, or KLM 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 $694). 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.

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Alternative routes for Dulles Intl to Glasgow

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$508Average$668FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$537Average$729FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$612Average$862FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$621Average$871FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$652Average$767FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$744Average$1,056FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$920Average$990FlexibilityNo cancel feeOn-time71%

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