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$302+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GLA
Jun 13 — Jun 201
Sat 6/13
Sat 6/20
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 May 14, 2026.

This Mytrip deal was found by Cheapflights users on 5/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/104:05 pm
IAD
-
GLA
1 stop12h 35m
Multiple Airlines
Wed 6/177:45 am
GLA
-
IAD
2 stops17h 44m
Multiple Airlines
Deal found 5/13$692
This Mytrip deal was found by Cheapflights users on 5/12. 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 6/911:30 am
IAD
-
GLA
1 stop17h 10m
Multiple Airlines
Tue 6/168:40 pm
GLA
-
IAD
3 stops28h 49m
Multiple Airlines
Deal found 5/12$739
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:30 am
IAD
-
GLA
1 stop14h 20m
Multiple Airlines
Mon 6/228:35 am
GLA
-
IAD
1 stop31h 11m
Multiple Airlines
Deal found 5/13$761
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:20 pm
IAD
-
GLA
1 stop9h 05m
Multiple Airlines
Tue 8/255:40 pm
GLA
-
IAD
2 stops30h 45m
Multiple Airlines
Deal found 5/10$789
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Tue 6/211:30 am
IAD
-
GLA
1 stop17h 10m
Multiple Airlines
Wed 6/109:40 pm
GLA
-
IAD
2 stops44h 13m
Multiple Airlines
Deal found 5/12$790
This Mytrip deal was found by Cheapflights users on 5/11. 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.
Wed 6/312:40 pm
IAD
-
GLA
3 stops27h 35m
Multiple Airlines
Sun 6/79:55 pm
GLA
-
IAD
3 stops27h 34m
Multiple Airlines
Deal found 5/11$803
This Gotogate deal was found by Cheapflights users on 5/12. 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.
Thu 9/108:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Wed 9/162:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 5/12$810
This Mytrip deal was found by Cheapflights users on 5/12. 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 6/911:30 am
IAD
-
GLA
1 stop17h 10m
Multiple Airlines
Wed 6/177:45 am
GLA
-
IAD
2 stops17h 44m
Multiple Airlines
Deal found 5/12$813
This Gotogate deal was found by Cheapflights users on 5/9. 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.
Sat 9/511:20 pm
IAD
-
GLA
1 stop9h 05m
Icelandair
Sun 9/132:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Deal found 5/9$814
This Mytrip deal was found by Cheapflights users on 5/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:00 pm
IAD
-
PIK
2 stops21h 35m
Multiple Airlines
Sun 8/306:00 am
PIK
-
IAD
3 stops38h 10m
Multiple Airlines
Deal found 5/13$1,060
This Mytrip deal was found by Cheapflights users on 5/12. 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 9/1010:20 pm
IAD
-
PIK
2 stops20h 15m
Multiple Airlines
Sat 9/198:40 am
PIK
-
IAD
3 stops35h 30m
Multiple Airlines
Deal found 5/12$1,102
This Mytrip deal was found by Cheapflights users on 5/12. 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 9/1010:20 pm
IAD
-
PIK
2 stops20h 15m
Multiple Airlines
Wed 9/166:10 am
PIK
-
IAD
3 stops43h 25m
Multiple Airlines
Deal found 5/12$1,131

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 May 14, 2026.

Round-trip from

$692
(Mytrip)

One-way from

$302
(Booking.com)

Popular in

June

Cheapest in

October

Average price

$842
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. 19% potential increase in price ($186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 14, 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

Sun 9/20

7:15 pm-10:30 am

1 stop10h 15m

Glasgow Intl

Tue 9/22

7:30 pm-3:55 pm

1 stop25h 25m

$964

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 10/10

10:30 pm-10:10 am

1 stop30h 40m

Glasgow Intl

Tue 10/13

2:00 pm-10:59 pm

1 stop13h 59m

$978

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 10/7

12:30 pm-8:25 am

2 stops14h 55m

Glasgow Intl

Tue 10/13

6:00 am-6:26 pm

2 stops17h 26m

$986

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 8/11

11:44 am-8:25 am

2 stops15h 41m

Glasgow Intl

Tue 8/18

6:00 am-6:33 pm

2 stops17h 33m

$1,018

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 8/23

6:00 am-8:25 am

2 stops21h 25m

Glasgow Intl

Sun 8/30

6:00 am-3:35 pm

1 stop14h 35m

$1,027
Quickest round-trip

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 10/8

7:59 pm-4:10 pm

2 stops15h 11m

Glasgow Intl

Tue 10/13

9:10 am-3:35 pm

1 stop11h 25m

$1,027

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 10/10

12:30 pm-9:40 am

2 stops16h 10m

Glasgow Intl

Fri 10/16

6:00 am-7:10 pm

2 stops18h 10m

$1,037

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 8/8

12:29 pm-8:25 am

2 stops14h 56m

Glasgow Intl

Wed 8/19

6:00 am-3:35 pm

1 stop14h 35m

$1,042

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 8/8

12:29 pm-8:25 am

2 stops14h 56m

Glasgow Intl

Wed 8/19

1:30 pm-12:33 am

2 stops16h 03m

$1,051

Washington, D.C.Glasgow

IAD - PIK

IADPIK

Washington, D.C. Dulles Intl

Sat 8/22

9:00 pm-11:35 pm

2 stops21h 35m

Glasgow Prestwick

Sun 8/30

6:00 am-3:10 pm

3 stops38h 10m

$1,060

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 30 resultsSorted by cheapest first
1
2
3

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?

The best time to book flights from Washington, D.C. Dulles Intl Airport to Glasgow is 66 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow (average of $214). Flying from Washington, D.C. Dulles Intl Airport to Glasgow in February is currently the most expensive (average of $607). 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 May 14, 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.

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

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 May 14, 2026.
Read reviews from past customers who have flown KLM,Aer Lingus, andIcelandair 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.
KLM
7.8
Good
1,517 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,517 reviews
KLM
7.8
Good
1,517 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,561 reviews
KLM
7.8
Good
1,517 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Icelandair
7.0
Good
654 reviews
KLM
7.8
Good
1,517 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
7,980 reviews
KLM
7.8
Good
1,517 reviews

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 British Airways, United Airlines, or Delta 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 $509, 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 KLM. Icelandair is currently priced 32% 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow (average of $214). Flying from Washington, D.C. Dulles Intl Airport to Glasgow in February is currently the most expensive (average of $607). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$487Average$667FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$520Average$797FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$621Average$964FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$622Average$753FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$652Average$765FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$722Average$1,042FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$772Average$1,258FlexibilityNo cancel feeOn-time76%

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