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Cheap flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport from £285

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — IAD
9 Jun — 16 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow Intl to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow Intl to Dulles Intl
Explore the most affordable flight options available from Glasgow Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 May 2026.

Wed 3/607:45
GLA
-
IAD
1 stop13h 00m
Multiple Airlines
Wed 10/621:00
IAD
-
GLA
1 stop12h 55m
Multiple Airlines
Deal found 6/5£520
Fri 16/1014:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 25/1020:40
IAD
-
GLA
1 stop11h 45m
Icelandair
Deal found 9/5£542
Wed 3/608:35
GLA
-
IAD
1 stop12h 10m
Aer Lingus
Wed 10/621:00
IAD
-
GLA
1 stop13h 25m
Aer Lingus
Deal found 6/5£554
Fri 22/507:25
GLA
-
IAD
1 stop13h 20m
Multiple Airlines
Mon 25/521:00
IAD
-
GLA
1 stop13h 40m
Multiple Airlines
Deal found 10/5£565
Thu 4/614:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Mon 8/620:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 8/5£565
Tue 13/1014:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Tue 27/1020:40
IAD
-
GLA
1 stop9h 15m
Icelandair
Deal found 9/5£573
Thu 15/1014:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 25/1020:40
IAD
-
GLA
1 stop11h 45m
Icelandair
Deal found 5/5£578
Tue 2/614:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Mon 8/620:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 6/5£582
Wed 14/1014:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 25/1020:40
IAD
-
GLA
1 stop11h 45m
Icelandair
Deal found 5/5£583
Tue 16/620:40
GLA
-
IAD
3 stops28h 49m
Multiple Airlines
Tue 23/608:18
IAD
-
GLA
2 stops20h 22m
Multiple Airlines
Deal found 6/5£585
Fri 11/914:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Fri 18/920:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 6/5£589

Find flight deals from Glasgow Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to Dulles Intl (IAD). 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 10 May 2026.

Round-trip from

£520

One-way from

£285

Popular in

April

Cheapest in

February

Average price

£638
3/6-10/6
  • 3/6-10/6
  • 2 total stops
  • 25h 55m total
  • Glasgow to Washington, D.C.
Search Deals
20/6
  • 20/6
  • 2 total stops
  • 36h 36m total
  • Glasgow to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl to Dulles 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 858,174 searches. Data last updated 10 May 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 13/10

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Mon 26/10

20:40-09:55

1 stop9h 15m

£573

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 14/10

14:20-22:15

1 stop12h 55m

Washington, D.C. Dulles Intl

Tue 27/10

20:40-09:55

1 stop9h 15m

£595

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 12/10

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Mon 26/10

20:40-09:55

1 stop9h 15m

£712

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 1/6

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Tue 9/6

20:30-13:25

1 stop11h 55m

£722

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 6/9

17:50-17:25

1 stop28h 35m

Washington, D.C. Dulles Intl

Tue 20/10

22:25-14:40

1 stop11h 15m

£724

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 4/6

11:00-20:29

1 stop14h 29m

Washington, D.C. Dulles Intl

Mon 8/6

11:30-06:50

1 stop14h 20m

£733

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 28/5

06:00-15:35

1 stop14h 35m

Washington, D.C. Dulles Intl

Thu 4/6

17:40-16:10

1 stop17h 30m

£733

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 16/6

09:10-18:32

2 stops14h 22m

Washington, D.C. Dulles Intl

Tue 23/6

11:05-08:25

2 stops16h 20m

£736

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 14/9

09:10-19:16

2 stops15h 06m

Washington, D.C. Dulles Intl

Wed 28/10

19:59-16:35

2 stops16h 36m

£737

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 11/9

06:00-19:16

2 stops18h 16m

Washington, D.C. Dulles Intl

Fri 18/9

17:40-16:15

1 stop17h 35m

£737

Flights are sorted by cheapest return flights first.

Deals found on 9/5

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Glasgow Intl with our price prediction graph.
Estimated return 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 Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport

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

The price you pay for your flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 80 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 Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport (average of £415). Flying from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of £769). 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 for a return flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles 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 Dulles Intl. Reviews last updated 10 May 2026.
Get a feel of what it's like to fly with Aer Lingus,Icelandair, andBritish Airways from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,551 reviews
Check prices

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,551 reviews
Aer Lingus
7.3
Good
1,551 reviews
Check prices

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Icelandair
7.0
Good
653 reviews
Aer Lingus
7.3
Good
1,551 reviews
Check prices

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
British Airways
6.7
Okay
7,969 reviews
Aer Lingus
7.3
Good
1,551 reviews
Check prices

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to Dulles 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 Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport in 12h 55m. Fly via Icelandair to get the fastest option. The distance from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport is about 3426 mi.

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

    Cheapflights users have booked flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport round-trip from £416. Other airlines that can offer you cheap pricing are British Airways, from £488, and Aer Lingus, from £489. Icelandair is currently priced 30% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow Intl to Dulles 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 Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport (average of £415). Flying from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of £769). 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

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Arlington
Alexandria
Sterling

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Alternative routes for Glasgow Intl to Dulles Intl

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

Top 3 airlines flying from Glasgow Intl to Dulles Intl

Discover the top 3 airlines that operate flights from Glasgow Intl to Dulles 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 858,174 searches. Data last updated 10 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£416Average£563FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£488Average£660FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£489Average£686FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Glasgow Intl to Dulles Intl?

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Why should you use Cheapflights to find cheap flight tickets from Glasgow Intl to Dulles Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Glasgow Intl to Dulles Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Glasgow Intl to Dulles Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Glasgow Intl to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Glasgow Intl to Dulles Intl become cheaper?

Not ready to book yet? You can track prices for flights from Glasgow Intl to Dulles Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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