Find flights
When to book
Airlines
FAQs

Cheap flights from Glasgow to Washington, D.C. from £306

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — WAS
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to Washington, D.C.
Explore the most affordable flight options available from Glasgow to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 June 2026.

Fri 25/914:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Fri 9/1020:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/6£495
Sun 20/914:20
GLA
-
BWI
1 stop12h 55m
Icelandair
Sun 4/1020:30
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 8/6£497
Wed 2/1211:55
GLA
-
BWI
1 stop11h 45m
Icelandair
Sun 6/1219:40
BWI
-
GLA
1 stop9h 15m
Icelandair
Deal found 5/6£504
Fri 11/914:20
GLA
-
IAD
1 stop12h 55m
Icelandair
Fri 18/923:20
IAD
-
GLA
1 stop9h 05m
Icelandair
Deal found 8/6£505
Fri 25/906:50
GLA
-
IAD
2 stops20h 25m
Multiple Airlines
Fri 9/1020:30
IAD
-
GLA
2 stops18h 55m
Multiple Airlines
Deal found 7/6£508
Thu 3/914:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Mon 7/920:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/6£522
Tue 7/713:20
GLA
-
IAD
1 stop11h 05m
British Airways
Tue 14/719:15
IAD
-
GLA
1 stop10h 15m
British Airways
Deal found 8/6£523
Thu 17/914:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Mon 21/920:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 5/6£530
Sun 6/914:00
GLA
-
IAD
1 stop12h 28m
Lufthansa
Tue 20/1022:40
IAD
-
GLA
1 stop30h 30m
Lufthansa
Deal found 8/6£533
Wed 24/614:00
GLA
-
BWI
2 stops24h 26m
Lufthansa
Thu 9/718:38
BWI
-
GLA
2 stops34h 32m
Lufthansa
Deal found 8/6£533
Fri 7/809:40
GLA
-
IAD
1 stop11h 05m
British Airways
Thu 13/817:15
IAD
-
GLA
1 stop9h 50m
British Airways
Deal found 7/6£546
Tue 7/714:00
GLA
-
IAD
1 stop12h 01m
United Airlines
Tue 14/708:29
IAD
-
GLA
1 stop20h 41m
United Airlines
Deal found 8/6£548

Find flight deals from Glasgow to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) to Washington, D.C. (WAS). 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 9 June 2026.

Round-trip from

£495

One-way from

£306

Popular in

April

Cheapest in

February

Average price

£672
Icelandair
  • Icelandair
  • 25/9-9/10
  • 2 total stops
  • 21h 55m total
  • Glasgow to Washington, D.C.
Search Deals
8/9
  • 8/9
  • 2 total stops
  • 50h 49m total
  • Glasgow to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£37 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow to Washington, D.C. 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 9 June 2026.
Use the filters below to find and compare flights from Glasgow to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 3/9

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Mon 7/9

20:30-13:25

1 stop11h 55m

£522

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Thu 3/9

14:00-21:59

1 stop12h 59m

Washington, D.C. Reagan-National

Mon 7/9

16:30-10:10

1 stop12h 40m

£548

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Tue 7/7

14:00-21:53

1 stop12h 53m

Washington, D.C. Reagan-National

Tue 14/7

06:00-10:10

1 stop23h 10m

£548

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Tue 7/7

14:00-13:57

2 stops28h 57m

Baltimore/Washington

Tue 14/7

08:16-10:10

2 stops20h 54m

£548

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 20/9

14:00-22:59

1 stop13h 59m

Washington, D.C. Dulles Intl

Sun 4/10

17:50-10:10

1 stop11h 20m

£549

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 20/9

14:00-07:19

1 stop22h 19m

Washington, D.C. Dulles Intl

Mon 5/10

12:38-10:10

1 stop16h 32m

£549

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Sun 20/9

14:00-09:46

1 stop24h 46m

Washington, D.C. Reagan-National

Sun 4/10

13:00-10:10

1 stop16h 10m

£549

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Fri 25/9

14:00-07:49

1 stop22h 49m

Washington, D.C. Reagan-National

Fri 9/10

11:45-10:10

1 stop17h 25m

£549

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Sun 20/9

14:00-07:49

1 stop22h 49m

Washington, D.C. Reagan-National

Mon 5/10

16:30-10:10

1 stop12h 40m

£549
Fastest return journey

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 15/11

13:20-19:30

1 stop11h 10m

Washington, D.C. Dulles Intl

Mon 15/2

21:45-13:05

1 stop10h 20m

£551

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 52 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Glasgow to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Glasgow 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 to Washington, D.C.

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

Currently, June is the cheapest month in which you can book a flight from Glasgow to Washington, D.C. (average of £201). Flying from Glasgow to Washington, D.C. in April is currently the most expensive (average of £534). 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 GLA to WAS?

Find hourly flight availability from Glasgow to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 June 2026.

When flying from Glasgow to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Glasgow to Washington, D.C.?

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

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Glasgow to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 9 June 2026.
Read reviews from past customers who have flown with Aer Lingus,Icelandair, andBritish Airways from Glasgow to Washington, D.C.. 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
7.3
Good
1,599 reviews
Check prices

Crew

8.1

Overall

7.3

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

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
1,599 reviews
Aer Lingus
7.3
Good
1,599 reviews
Check prices

Crew

8.1

Overall

7.3

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

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
670 reviews
Aer Lingus
7.3
Good
1,599 reviews
Check prices

Crew

8.1

Overall

7.3

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

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
8,034 reviews
Aer Lingus
7.3
Good
1,599 reviews
Check prices

Crew

8.1

Overall

7.3

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

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 to Washington, D.C.. 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 to Washington, D.C.?

    For as low as £522, Icelandair can have you in Washington, D.C. from Glasgow in 10h. Glasgow and Washington, D.C. are separated by a distance of 3426 mi. This flight may include one or multiple stops.

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

    Flying on Icelandair is currently your cheapest option to Washington, D.C., with prices starting at £427. Additional return tickets that might be worth considering are offered by British Airways and Aer Lingus, with the lowest prices starting at £499 and £500, respectively. You may be able to fly from Glasgow to Washington, D.C. for 37% less than the average price by searching for these airlines.

  • What are the most popular routes from Glasgow to Washington, D.C.?

    While some choose either Glasgow Intl - Baltimore/Washington or Glasgow Intl - Washington, D.C. Reagan-National, Glasgow Intl - Washington, D.C. Dulles Intl is the most popular route from Glasgow to Washington, D.C..

  • Can I find deals for flights from Glasgow to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Glasgow to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Glasgow to Washington, D.C.?

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

  • Can I find deals for business class flights from Glasgow to Washington, D.C.?

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

    Currently, June is the cheapest month in which you can book a flight from Glasgow to Washington, D.C. (average of £201). Flying from Glasgow to Washington, D.C. in April is currently the most expensive (average of £534). 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.?

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

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 6 airlines flying from Glasgow to Washington, D.C.

Discover the top 6 airlines that operate flights from Glasgow to Washington, D.C.. 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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£419Average£573FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£458Average£650FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£500Average£693FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£513Average£558FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£588Average£801FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£626Average£835FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Glasgow to Washington, D.C.?

Cheapflights makes it easy to find Glasgow to Washington, D.C. flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Washington, D.C.?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Glasgow to Washington, D.C. for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Glasgow to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Glasgow to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Glasgow to Washington, D.C. become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.