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Cheap flights from Glasgow Intl Airport to Washington, D.C. from £422

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — WAS
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 November 2025.

Round-trip from

£403

Popular in

October

Cheapest in

February

Average price

£601
Aer Lingus
  • Aer Lingus
  • 10/1-17/1
  • 2 total stops
  • 23h 00m total
  • Glasgow to Washington, D.C.
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Highest demand for flights based on searches. 4% potential increase in price (£24 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 November 2025
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Find 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 27 November 2025.

Mon 15/1213:25GLA - IAD
1 stop31h 40mKLM
Mon 12/118:05IAD - GLA
1 stop10h 50mKLM
Deal found 26/11£531
Mon 15/1220:10GLA - IAD
1 stop24h 25mBritish Airways
Mon 12/118:20IAD - GLA
1 stop10h 30mBritish Airways
Deal found 25/11£557
Mon 15/1208:55GLA - IAD
1 stop11h 40mMultiple Airlines
Mon 12/113:08IAD - GLA
2 stops16h 37mMultiple Airlines
Deal found 25/11£577
Sun 21/1207:25GLA - IAD
1 stop13h 10mMultiple Airlines
Mon 29/1217:05IAD - GLA
1 stop9h 55mMultiple Airlines
Deal found 24/11£581
Mon 15/1211:35GLA - DCA
2 stops15h 32mBritish Airways
Mon 12/113:44DCA - GLA
2 stops15h 06mBritish Airways
Deal found 25/11£621
Thu 11/1208:20GLA - IAD
1 stop16h 10mAer Lingus
Sun 4/121:00IAD - GLA
1 stop9h 30mAer Lingus
Deal found 24/11£630
Sat 6/1206:35GLA - IAD
2 stops17h 56mBritish Airways
Sat 13/1221:00IAD - GLA
1 stop14h 00mBritish Airways
Deal found 25/11£635
Mon 15/1213:25GLA - IAD
2 stops15h 47mDelta
Mon 12/112:29IAD - GLA
2 stops16h 26mDelta
Deal found 25/11£648
Thu 11/1220:10GLA - DCA
3 stops31h 25mMultiple Airlines
Sun 4/106:00DCA - GLA
2 stops25h 50mMultiple Airlines
Deal found 24/11£792
Wed 24/1211:40GLA - BWI
1 stop12h 05mBritish Airways
Wed 31/1220:35BWI - GLA
1 stop11h 15mBritish Airways
Deal found 26/11£911
Mon 15/1215:25GLA - DCA
2 stops32h 46mIberia
Mon 12/117:45DCA - GLA
2 stops15h 45mIberia
Deal found 26/11£938
Wed 24/1208:20GLA - BWI
2 stops15h 25mAer Lingus
Wed 31/1220:35BWI - GLA
2 stops14h 25mAer Lingus
Deal found 26/11£979

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 27 November 2025.
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

Thu 8/1

07:15-15:35

1 stop13h 20m

Washington, D.C. Dulles Intl

Thu 15/1

17:05-07:55

1 stop9h 50m

£513

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 16/1

08:20-15:35

1 stop12h 15m

Washington, D.C. Dulles Intl

Sun 18/1

21:45-13:15

1 stop10h 30m

£514

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 16/1

06:35-15:35

1 stop14h 00m

Washington, D.C. Dulles Intl

Sun 18/1

13:08-13:15

2 stops19h 07m

£515

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 13/4

14:05-20:20

1 stop11h 15m

Washington, D.C. Dulles Intl

Mon 20/4

17:40-10:05

1 stop11h 25m

£515

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 15/12

13:25-16:05

1 stop31h 40m

Washington, D.C. Dulles Intl

Mon 12/1

18:05-09:55

1 stop10h 50m

£531

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 1/3

09:20-15:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Sat 7/3

21:45-13:20

1 stop10h 35m

£551

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 9/1

08:25-15:35

1 stop12h 10m

Washington, D.C. Dulles Intl

Fri 16/1

17:05-07:50

1 stop9h 45m

£553

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 15/12

20:10-15:35

1 stop24h 25m

Washington, D.C. Dulles Intl

Mon 12/1

18:20-09:50

1 stop10h 30m

£557

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Sun 1/3

11:40-22:15

2 stops15h 35m

Washington, D.C. Reagan-National

Sat 7/3

15:30-09:25

2 stops12h 55m

£569

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Thu 15/1

06:35-16:50

2 stops15h 15m

Washington, D.C. Reagan-National

Sun 18/1

16:43-10:45

2 stops13h 02m

£581

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 54 results
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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, May is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. (average of £433). Flying from Glasgow Intl Airport to Washington, D.C. in July is currently the most expensive (average of £598). 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 Intl 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 27 November 2025.

One of the essential ways to save on airfare from Glasgow Intl Airport to Washington, D.C. is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

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 37% 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 £565.

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 27m.

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 36m.

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 27 November 2025.
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
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

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
1,423 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

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
1,381 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

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
7.0
Good
581 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

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
7,539 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

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 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 £514, British Airways can have you in Washington, D.C. from Glasgow Intl Airport in 12h 15m. 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 £438, 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 34% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Glasgow Intl Airport to Washington, D.C. one-way?

    The cheapet airlines for a one-way flight from Glasgow Intl Airport to Washington, D.C. are Icelandair (£422), British Airways (£500), and Finnair (£512).

  • 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, May is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. (average of £433). Flying from Glasgow Intl Airport to Washington, D.C. in July is currently the most expensive (average of £598). 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

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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 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£438Average£599FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£457Average£603FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£471Average£571FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£505Average£656FlexibilityNo 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 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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