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

Cheapflights users have booked flights from Washington, D.C. to Glasgow round-trip from $505. Other airlines that can offer you cheap pricing are British Airways, from $520, and Aer Lingus, from $766. Icelandair is priced at 37% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in Glasgow ranges from 1.3 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. May is typically the driest time to visit Glasgow when rainfall is around 1.3 in.

If weather is an important factor for your trip to Glasgow, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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

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

What are the most popular airlines that fly from Washington, D.C. to Glasgow?

Icelandair, British Airways and Aer Lingus are the most popular airlines when flying from Washington, D.C. to Glasgow.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Washington, D.C. to Glasgow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Washington, D.C. to Glasgow

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

Popular in	June
Cheapest in	February
Average price	$726

Highest demand for flights based on searches. 14% potential increase in price ($136 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

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

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

WAS-GG1

Estimated round-trip 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.

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Everything you need to know about your flight from Washington, D.C. to Glasgow

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

The best time to book flights from Washington, D.C. to Glasgow is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Glasgow (average of $628). Flying from Washington, D.C. to Glasgow in June is currently the most expensive (average of $1,184). 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 WAS to GLA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Glasgow as you normally would.

Reviews of airlines servicing Glasgow

Read through reviews of airlines operating flights from Washington, D.C. to Glasgow, such as Aer Lingus,Icelandair, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,788 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Aer Lingus

7.3

Good

1,788 reviews

Aer Lingus

7.3

Good

1,788 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2025

DUB - EDI

Icelandair

6.9

Okay

751 reviews

Aer Lingus

7.3

Good

1,788 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2025

DUB - EDI

British Airways

6.7

Okay

8,231 reviews

Aer Lingus

7.3

Good

1,788 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2025

DUB - EDI

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. to Glasgow round-trip?
Cheapflights users have booked flights from Washington, D.C. to Glasgow round-trip from $505. Other airlines that can offer you cheap pricing are British Airways, from $520, and Aer Lingus, from $766. Icelandair is priced at 37% lower than the current average price of a flight leaving 3 months from now.
What are the most popular routes from Washington, D.C. to Glasgow?
While some choose either Baltimore/Washington - Glasgow Intl or Washington, D.C. Reagan-National - Glasgow Intl, Washington, D.C. Dulles Intl - Glasgow Intl is the most popular route from Washington, D.C. to Glasgow.
Can I find deals for flights from Washington, D.C. to Glasgow that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Glasgow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Glasgow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Glasgow.
Can I find deals for business class flights from Washington, D.C. to Glasgow?
Yes. Cheapflights offers flight deals from Washington, D.C. to Glasgow 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 Washington, D.C. to Glasgow?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Glasgow (average of $628). Flying from Washington, D.C. to Glasgow in June is currently the most expensive (average of $1,184). 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.

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Top 8 airlines flying from Washington, D.C. to Glasgow

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$483	Average$768	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$520	Average$1,026	FlexibilityNo cancel fee	On-time70%
Turkish Airlines	Cheapest$652	Average$809	FlexibilityNo cancel fee	On-time77%
Aer Lingus	Cheapest$669	Average$1,142	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$772	Average$1,258	FlexibilityNo cancel fee	On-time76%
JetBlue	Cheapest$800	Average$1,096	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$828	Average$1,257	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$1,256	Average$1,340	FlexibilityNo cancel fee	On-timeN/A

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Cheap flights from Washington, D.C. (WAS) to Glasgow

Find cheap flights from Washington, D.C. to Glasgow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Popular in

Cheapest in

Average price

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

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

Cheapflights Insights

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

The best time to book flights from Washington, D.C. to Glasgow is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

What is the cheapest time of day to fly from WAS to GLA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Glasgow as you normally would.

Reviews of airlines servicing Glasgow

Read through reviews of airlines operating flights from Washington, D.C. to Glasgow, such as Aer Lingus,Icelandair, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Glasgow

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Complete your trip

Complete your trip to Glasgow by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Washington, D.C. to Glasgow by cabin class

Find flights from Washington, D.C. to Glasgow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Glasgow flights

Browse other Washington, D.C. and Glasgow flight options. Last updated on September 25, 2026.

Other flights from Washington, D.C.

Browse through other flights departing from Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.

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