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$308+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GLA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Glasgow are usually found in April or November, booked 85 days in advance, depart on a Thursday or Monday and return on a Wednesday

Find 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 October 28, 2025.

This oojo deal was found by Cheapflights users on 10/27. 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 12/47:40 pmIAD - GLA
1 stop9h 15mIcelandair
Sun 12/1412:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/27$488
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmIAD - GLA
1 stop9h 15mIcelandair
Sun 12/1412:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/27$492
This Mytrip deal was found by Cheapflights users on 10/25. 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 12/27:40 pmIAD - GLA
2 stops19h 40mMultiple Airlines
Mon 12/811:35 pmGLA - IAD
2 stops23h 55mMultiple Airlines
Deal found 10/25$503
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:40 pmIAD - GLA
1 stop9h 15mIcelandair
Sat 12/612:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/26$505
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:40 pmIAD - GLA
1 stop9h 15mIcelandair
Wed 11/1912:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/27$510
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:40 pmIAD - GLA
1 stop9h 15mIcelandair
Wed 12/1712:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/26$517
This Mytrip deal was found by Cheapflights users on 10/25. 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 12/47:40 pmIAD - GLA
2 stops20h 45mMultiple Airlines
Mon 12/811:35 pmGLA - IAD
2 stops23h 55mMultiple Airlines
Deal found 10/25$524
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:40 pmIAD - GLA
1 stop9h 15mIcelandair
Wed 11/1912:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/27$528
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:40 pmIAD - GLA
1 stop9h 15mIcelandair
Tue 12/1612:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/26$541
This oojo deal was found by Cheapflights users on 10/27. 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 12/117:40 pmIAD - GLA
1 stop9h 15mIcelandair
Thu 12/1812:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/27$542
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:40 pmIAD - GLA
1 stop9h 15mIcelandair
Wed 11/1912:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/27$561
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Tue 12/167:40 pmIAD - GLA
1 stop9h 15mIcelandair
Sat 1/1012:35 pmGLA - IAD
1 stop10h 55mIcelandair
Deal found 10/26$570

Cheap 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 October 28, 2025.

Round-trip from

$488
(oojo)

One-way from

$308
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$613
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. 17% potential increase in price ($150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 28, 2025.
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

Wed 2/11

7:40 pm-9:55 am

1 stop9h 15m

Glasgow Intl

Mon 2/16

12:35 pm-6:30 pm

1 stop10h 55m

$488

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 4/2

8:30 pm-1:25 pm

1 stop11h 55m

Glasgow Intl

Mon 4/20

2:20 pm-7:20 pm

1 stop10h 00m

$508

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 12/4

7:40 pm-9:25 pm

2 stops20h 45m

Glasgow Intl

Mon 12/8

11:35 pm-6:30 pm

2 stops23h 55m

$524

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 4/7

8:30 pm-1:25 pm

1 stop11h 55m

Glasgow Intl

Thu 4/16

2:20 pm-7:20 pm

1 stop10h 00m

$531

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 4/23

8:30 pm-1:25 pm

1 stop11h 55m

Glasgow Intl

Thu 4/30

2:20 pm-7:20 pm

1 stop10h 00m

$567

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 12/2

9:45 am-7:40 pm

3 stops28h 55m

Glasgow Intl

Mon 12/8

11:35 pm-3:50 pm

2 stops21h 15m

$584

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Mon 1/12

6:20 pm-9:50 am

1 stop10h 30m

Glasgow Intl

Tue 1/20

8:55 am-3:35 pm

1 stop11h 40m

$621

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Fri 3/13

7:20 pm-9:35 am

1 stop10h 15m

Glasgow Intl

Fri 3/20

8:55 am-4:35 pm

1 stop11h 40m

$621

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Wed 1/14

9:45 pm-2:15 pm

1 stop11h 30m

Glasgow Intl

Sun 1/18

5:55 am-3:35 pm

1 stop14h 40m

$621

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 11/13

6:05 pm-12:45 pm

1 stop13h 40m

Glasgow Intl

Sun 11/23

6:05 am-4:05 pm

1 stop15h 00m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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 October 24, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Glasgow is 85 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow (average of $486). Flying from Washington, D.C. Dulles Intl Airport to Glasgow in June is currently the most expensive (average of $666). 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 October 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Glasgow in the evening. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

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 October 28, 2025.
Read reviews from past customers who have flown KLM, Aer Lingus, and Icelandair 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
7.7
Good
1,406 reviews

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,361 reviews
KLM
7.7
Good
1,406 reviews

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.1
Good
562 reviews
KLM
7.7
Good
1,406 reviews

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,482 reviews
KLM
7.7
Good
1,406 reviews

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 9h 15m. Fly via Icelandair to get the fastest option. Washington, D.C. Dulles Intl Airport and Glasgow are separated by a distance of 3426 mi.

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

    Icelandair, at $494, 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 31% 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Glasgow (average of $486). Flying from Washington, D.C. Dulles Intl Airport to Glasgow in June is currently the most expensive (average of $666). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Dulles Intl to Glasgow

Discover the top 8 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$494Average$673FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$574Average$760FlexibilityNo cancel feeOn-time70%
KLMCheapest$591Average$750FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$628Average$863FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$652Average$807FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$744Average$1,097FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$860Average$1,206FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$920Average$991FlexibilityNo cancel feeOn-time71%

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