Find flights
When to book
Airlines
FAQs

Cheap flights from Glasgow Intl Airport to Washington, D.C. from £357

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 28/3. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — WAS
21 Feb — 28 Feb1
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 22 January 2026.

Mon 16/309:50
GLA
-
IAD
2 stops37h 40m
Multiple Airlines
Sun 22/320:40
IAD
-
GLA
2 stops18h 05m
Multiple Airlines
Deal found 20/1£385
Sun 10/514:20
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 17/523:20
IAD
-
GLA
1 stop9h 05m
Icelandair
Deal found 20/1£457
Fri 6/212:35
GLA
-
IAD
1 stop10h 55m
Icelandair
Sat 14/219:40
IAD
-
GLA
1 stop9h 15m
Icelandair
Deal found 19/1£474
Mon 16/306:10
GLA
-
IAD
1 stop19h 05m
Lufthansa
Sun 22/319:00
IAD
-
GLA
1 stop13h 05m
Lufthansa
Deal found 20/1£497
Fri 6/212:35
GLA
-
BWI
1 stop11h 05m
Icelandair
Sat 14/219:40
BWI
-
GLA
1 stop9h 15m
Icelandair
Deal found 19/1£497
Fri 6/308:20
GLA
-
IAD
1 stop16h 10m
British Airways
Sat 14/322:45
IAD
-
GLA
1 stop12h 10m
British Airways
Deal found 20/1£498
Sat 7/308:20
GLA
-
IAD
1 stop16h 10m
British Airways
Sat 14/319:20
IAD
-
GLA
1 stop10h 05m
British Airways
Deal found 21/1£500
Sat 7/306:00
GLA
-
IAD
1 stop14h 50m
Lufthansa
Sat 14/319:00
IAD
-
GLA
1 stop13h 05m
Lufthansa
Deal found 21/1£509
Thu 30/408:35
GLA
-
IAD
1 stop12h 10m
British Airways
Thu 7/519:15
IAD
-
GLA
1 stop10h 20m
British Airways
Deal found 20/1£511
Tue 10/206:05
GLA
-
IAD
1 stop15h 00m
Multiple Airlines
Tue 24/212:24
IAD
-
GLA
2 stops15h 06m
Multiple Airlines
Deal found 20/1£517
Fri 6/212:50
GLA
-
IAD
1 stop12h 25m
Lufthansa
Sat 14/217:45
IAD
-
GLA
2 stops13h 20m
Lufthansa
Deal found 19/1£519
Mon 16/313:25
GLA
-
DCA
2 stops14h 19m
KLM
Sun 22/318:30
DCA
-
GLA
2 stops14h 15m
KLM
Deal found 20/1£521

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 22 January 2026.

Round-trip from

£385

One-way from

£357

Popular in

October

Cheapest in

February

Average price

£570
16/3-22/3
  • 16/3-22/3
  • 4 total stops
  • 55h 45m total
  • Glasgow to Washington, D.C.
Search Deals
28/3
  • 28/3
  • 3 total stops
  • 48h 30m total
  • Glasgow to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 22 January 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

Glasgow Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 16/3

22:00-10:24

2 stops40h 24m

Washington, D.C. Dulles Intl

Sun 22/3

18:05-07:55

1 stop9h 50m

£486

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 16/3

06:10-21:15

1 stop19h 05m

Washington, D.C. Dulles Intl

Sun 22/3

19:00-12:05

1 stop13h 05m

£497

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Fri 6/2

12:35-18:40

1 stop11h 05m

Baltimore/Washington

Sat 14/2

19:40-09:55

1 stop9h 15m

£497

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 16/3

06:05-17:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Sun 22/3

19:05-16:35

1 stop17h 30m

£517

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 10/2

06:05-16:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Tue 24/2

12:24-08:30

2 stops15h 06m

£517

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 10/2

06:05-16:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Tue 24/2

18:05-16:35

1 stop17h 30m

£518

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Mon 16/3

13:25-23:44

2 stops14h 19m

Washington, D.C. Reagan-National

Sun 22/3

18:30-12:45

2 stops14h 15m

£521

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 5/2

08:20-15:35

1 stop12h 15m

Washington, D.C. Dulles Intl

Mon 9/2

17:05-11:30

1 stop13h 25m

£529

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Thu 7/5

06:00-17:23

2 stops16h 23m

Washington, D.C. Reagan-National

Thu 14/5

06:05-08:25

2 stops21h 20m

£533

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Tue 10/2

06:05-16:38

2 stops15h 33m

Baltimore/Washington

Tue 24/2

17:25-12:45

2 stops14h 20m

£550

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 52 results
1
2
3
...
6

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 £427). Flying from Glasgow Intl Airport to Washington, D.C. in July is currently the most expensive (average of £587). 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’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 38% 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 £555.

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 31m.

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 38m.

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 22 January 2026.
Read reviews from past customers who have flown with KLM, Aer Lingus, andIcelandair 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.
KLM
7.7
Good
1,442 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,442 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Aer Lingus
7.2
Good
1,439 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Icelandair
7.1
Good
602 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,689 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 £497, Lufthansa can have you in Washington, D.C. from Glasgow Intl Airport in 11h 05m. There are 3386 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 £420, was found to be the cheapest airline from Glasgow Intl Airport to Washington, D.C..Alternate airlines flying return to your destination include KLM and British Airways. You may be able to fly from Glasgow Intl Airport to Washington, D.C. for 35% 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 - Baltimore/Washington or Glasgow Intl - Washington, D.C. Reagan-National, 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 £427). Flying from Glasgow Intl Airport to Washington, D.C. in July is currently the most expensive (average of £587). 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
Woodbridge
Arlington
Alexandria
College Park

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.

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 4 airlines flying from Glasgow Intl to Washington, D.C.

Discover the top 4 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£420Average£598FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£463Average£561FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£494Average£617FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£500Average£657FlexibilityNo 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.

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.