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Cheap flights from Glasgow Intl Airport to Washington, D.C. from £320

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — WAS
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow Intl to Washington, D.C.
Explore the most affordable flight options available from Glasgow Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2026.

Thu 16/409:05
GLA
-
IAD
2 stops15h 15m
Multiple Airlines
Mon 20/420:30
IAD
-
GLA
2 stops14h 10m
Multiple Airlines
Deal found 1/4£462
Thu 16/409:05
GLA
-
IAD
2 stops15h 15m
Multiple Airlines
Tue 21/420:30
IAD
-
GLA
2 stops20h 40m
Multiple Airlines
Deal found 1/4£464
Wed 29/414:20
GLA
-
BWI
1 stop10h 05m
Icelandair
Tue 5/520:30
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 1/4£476
Mon 18/514:30
GLA
-
BWI
1 stop9h 55m
Icelandair
Sun 31/520:30
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 1/4£479
Thu 16/409:05
GLA
-
BWI
2 stops15h 20m
Multiple Airlines
Mon 20/420:30
BWI
-
GLA
2 stops14h 10m
Multiple Airlines
Deal found 1/4£485
Fri 24/414:30
GLA
-
IAD
1 stop9h 50m
Icelandair
Sun 31/520:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 1/4£486
Thu 23/414:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 26/420:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 31/3£491
Thu 5/1111:55
GLA
-
BWI
1 stop11h 45m
Icelandair
Mon 9/1119:40
BWI
-
GLA
1 stop9h 15m
Icelandair
Deal found 30/3£496
Thu 23/414:20
GLA
-
BWI
1 stop10h 05m
Icelandair
Sun 26/420:30
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 31/3£529
Thu 16/414:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Tue 21/420:30
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 1/4£551
Wed 13/507:45
GLA
-
IAD
1 stop13h 00m
Multiple Airlines
Wed 20/520:55
IAD
-
GLA
1 stop13h 00m
Multiple Airlines
Deal found 29/3£552
Thu 16/414:20
GLA
-
BWI
1 stop10h 05m
Icelandair
Tue 21/420:30
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 1/4£555

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

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) 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 1 April 2026.

Round-trip from

£462

One-way from

£320

Popular in

July

Cheapest in

February

Average price

£719
16/4-20/4
  • 16/4-20/4
  • 4 total stops
  • 29h 25m total
  • Glasgow to Washington, D.C.
Search Deals
27/5
  • 27/5
  • 2 total stops
  • 25h 50m total
  • Glasgow to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl 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 1 April 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport 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 23/4

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Sun 26/4

20:30-13:25

1 stop11h 55m

£491

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Wed 13/5

07:45-22:28

2 stops19h 43m

Washington, D.C. Reagan-National

Wed 20/5

06:00-09:40

2 stops22h 40m

£583

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 18/5

08:35-20:29

2 stops16h 54m

Washington, D.C. Dulles Intl

Sun 31/5

09:55-09:40

1 stop18h 45m

£629

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Mon 25/5

19:35-19:40

1 stop29h 05m

Baltimore/Washington

Mon 15/6

21:30-13:25

1 stop10h 55m

£635

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Mon 18/5

09:05-19:40

1 stop15h 35m

Baltimore/Washington

Sun 31/5

21:35-14:40

1 stop12h 05m

£636

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 3/6

10:50-17:25

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 7/6

17:40-09:50

1 stop11h 10m

£637

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Mon 18/5

11:00-22:28

1 stop16h 28m

Washington, D.C. Reagan-National

Sun 31/5

06:00-09:40

2 stops22h 40m

£643

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 22/4

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Sun 26/4

20:30-13:25

1 stop11h 55m

£646
Fastest return journey

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Fri 1/5

13:25-19:40

1 stop11h 15m

Baltimore/Washington

Tue 1/9

19:25-10:30

1 stop10h 05m

£648

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 31/7

09:30-17:25

1 stop12h 55m

Washington, D.C. Dulles Intl

Sun 9/8

17:20-14:40

2 stops16h 20m

£653

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 55 resultsSorted by cheapest first
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Best time to book a flight from Glasgow Intl to Washington, D.C.

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

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

Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. (average of £422). Flying from Glasgow Intl Airport to Washington, D.C. in December is currently the most expensive (average of £552). 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.?

What’s the top stopover airport for flights from Glasgow Intl Airport to Washington, D.C.?

Share of one-stop return flights from Glasgow Intl Airport to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 50% of one-stop itineraries from Glasgow Intl Airport to Washington, D.C. on Cheapflights.

What’s the cheapest stopover airport for flights from Glasgow Intl Airport to Washington, D.C.?

Average return fare for one-stop flights from Glasgow Intl Airport to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Boston (BOS) is the most affordable one-stop option, with an average return flight price of £561.

What’s the fastest stopover option from Glasgow Intl Airport to Washington, D.C.?

Shortest average travel time for one-stop one-way flights from Glasgow Intl Airport to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 29m.

Which airport typically offers the quickest stopover for flights from Glasgow Intl Airport to Washington, D.C.?

Average stopover duration for one-stop one-way flights from Glasgow Intl Airport to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 44m.

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 1 April 2026.
Read reviews from past customers who have flown with Aer Lingus,Icelandair, andBritish Airways from Glasgow Intl Airport 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
7.2
Good
1,495 reviews
Check prices

Overall

7.2

Crew

8.1

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Aer Lingus
7.2
Good
1,495 reviews
Aer Lingus
7.2
Good
1,495 reviews
Check prices

Overall

7.2

Crew

8.1

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Icelandair
7.0
Good
630 reviews
Aer Lingus
7.2
Good
1,495 reviews
Check prices

Overall

7.2

Crew

8.1

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
British Airways
6.7
Okay
7,842 reviews
Aer Lingus
7.2
Good
1,495 reviews
Check prices

Overall

7.2

Crew

8.1

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Related info for your journey

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

    For as low as £491, Icelandair can have you in Washington, D.C. from Glasgow Intl Airport in 10h. There are 3426 mi between Glasgow Intl Airport and Washington, D.C.. Both multi-stop and direct flights can be found to your destination and back.

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

    Icelandair, at £427, was found to be the cheapest airline from Glasgow Intl Airport to Washington, D.C..Alternate airlines flying return to your destination include British Airways and Aer Lingus. You may be able to fly from Glasgow Intl Airport to Washington, D.C. for 33% less than the average price by searching for these airlines.

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. (average of £422). Flying from Glasgow Intl Airport to Washington, D.C. in December is currently the most expensive (average of £552). 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
Arlington
Alexandria

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Alternative routes for Glasgow Intl to Washington, D.C.

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

Top 3 airlines flying from Glasgow Intl to Washington, D.C.

Discover the top 3 airlines that operate flights from Glasgow Intl 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 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£427Average£598FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£501Average£642FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£501Average£687FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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 Intl to Washington, D.C.?

Cheapflights helps you search for flights from Glasgow Intl to Washington, D.C. via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Glasgow Intl to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Glasgow Intl 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 Intl to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Glasgow Intl to Washington, D.C. flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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