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$435 Cheap Flights from Glasgow (GLA) to Washington (IAD)

View $435 flight on Thu, Nov 26, 2026Opens in a new window

Popular airlines from Glasgow International Airport (GLA) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Glasgow to Washington (GLA-IAD)

Prices were available within the past 7 days and start at $435 for one-way flights and $680 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Mon, Nov 23 - Fri, Nov 27
GLA
Glasgow
IAD
Washington
$680 Roundtrip, found 4 days ago
$680
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Nov 23 from Glasgow to Washington, returning Fri, Nov 27, priced at $680 found 4 days ago
Icelandair
Sat, Dec 5 - Sun, Dec 6
GLA
Glasgow
IAD
Washington
$699 Roundtrip, found 3 days ago
$699
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sat, Dec 5 from Glasgow to Washington, returning Sun, Dec 6, priced at $699 found 3 days ago
Icelandair
Mon, Dec 7 - Sun, Dec 13
GLA
Glasgow
IAD
Washington
$725 Roundtrip, found 4 days ago
$725
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Dec 7 from Glasgow to Washington, returning Sun, Dec 13, priced at $725 found 4 days ago
Aer Lingus
Sat, Oct 10 - Sun, Oct 11
GLA
Glasgow
IAD
Washington
$778 Roundtrip, found 6 days ago
$778
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Sat, Oct 10 from Glasgow to Washington, returning Sun, Oct 11, priced at $778 found 6 days ago
Aer Lingus
Thu, Oct 8 - Sat, Oct 10
GLA
Glasgow
IAD
Washington
$781 Roundtrip, found 6 days ago
$781
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Thu, Oct 8 from Glasgow to Washington, returning Sat, Oct 10, priced at $781 found 6 days ago
Icelandair
Sat, Sep 5 - Sat, Sep 12
GLA
Glasgow
IAD
Washington
$785 Roundtrip, found 4 days ago
$785
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sat, Sep 5 from Glasgow to Washington, returning Sat, Sep 12, priced at $785 found 4 days ago
Icelandair
Wed, Sep 9 - Tue, Sep 15
GLA
Glasgow
IAD
Washington
$785 Roundtrip, found 3 days ago
$785
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, Sep 9 from Glasgow to Washington, returning Tue, Sep 15, priced at $785 found 3 days ago
British Airways
Mon, Nov 23 - Fri, Nov 27
GLA
Glasgow
IAD
Washington
$855 Roundtrip, found 4 days ago
$855
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Nov 23 from Glasgow to Washington, returning Fri, Nov 27, priced at $855 found 4 days ago
Iberia
Mon, Nov 23 - Fri, Nov 27
GLA
Glasgow
IAD
Washington
$888 Roundtrip, found 4 days ago
$888
Roundtrip
found 4 days ago
Select Iberia flight, departing Mon, Nov 23 from Glasgow to Washington, returning Fri, Nov 27, priced at $888 found 4 days ago
American Airlines
Thu, Oct 8 - Sun, Oct 18
GLA
Glasgow
IAD
Washington
$906 Roundtrip, found 1 hour ago
$906
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Oct 8 from Glasgow to Washington, returning Sun, Oct 18, priced at $906 found 1 hour ago

What you need to know for your flight from Glasgow Intl. to Washington Dulles Intl.

Glasgow (GLA) to Washington (IAD) at a glance

Explore a range of airlines offering flights from Glasgow (GLA) to Washington (IAD) on this international long-haul journey. Compare options from full-service carriers to discover the itinerary that suits your budget, schedule, and travel plans as you take in the iconic sights and neighborhoods of Washington. Access essential details for flights departing from Glasgow International Airport (GLA) to Washington Dulles International Airport (IAD).

  • Fastest flight duration: around 9h 15m in-flight, plus roughly 2h 45m layover with one stop
  • Route distance: roughly 3,400 miles (5,470 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $375–$1275, depending on seasonality and how far ahead you book

Flights from Glasgow International Airport (GLA) to Washington Dulles International Airport (IAD)

Based on recent traveler bookings, here are the top airlines flying from Glasgow to Washington, primarily favored for their one-stop services. Popular layover options include Dublin Airport (DUB) with an average layover of about 2 hours and 45 minutes, Keflavik International Airport (KEF) offering a 1-hour layover, and Heathrow Airport (LHR) with a 2-hour and 15-minute layover. These choices provide the flexibility to balance price, total travel time, and cabin class for the ideal itinerary.

  • Aer Lingus: This full-service airline provides one-stop flights, with one-way ticket prices generally between $375 and $1110. It handles around 58% of departures on this route, featuring an in-flight duration of 9 hours and 15 minutes, resulting in a total travel time of about 12 hours, including layover.
  • Icelandair: As a full-service carrier, Icelandair offers one-stop service, and its one-way fares usually vary from $420 to $1335. It represents approximately 23% of the flights on this route, with a flight time of 9 hours and 15 minutes, leading to a total journey time of roughly 12 hours, inclusive of layover.
  • British Airways: This full-service airline also provides one-stop service, with one-way fares typically ranging from $375 to $780. British Airways accounts for about 16% of the departures on this route, with an in-flight time of 9 hours and 15 minutes, resulting in an overall travel duration of approximately 12 hours, factoring in the layover.

Alternative route from Glasgow (GLA) to Washington (IAD)

  • Edinburgh to Washington (EDI-IAD): Edinburgh Airport (EDI) is located approximately 42 miles from Glasgow International Airport (GLA). One-way economy ticket prices for this route generally fall between $380 and $1695, influenced by the time of year and how early you book. Travelers can choose from both non-stop and one-stop flights, with popular layover points being Dublin Airport (DUB) and Keflavik International Airport (KEF). Leading airlines operating on this route include Aer Lingus and United, with business class service also offered.

How to find the best prices for flights from Glasgow (GLA) to Washington (IAD)

Getting some of the best deals on flights from Glasgow to Washington is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically available when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Morning departures from 5 am to 12 pm often offer lower prices, while afternoon flights from 12 pm to 6 pm are more popular. Additionally, flying on Saturday usually provides cheaper rates, although Wednesday remains the most common travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Washington Dulles International Airport from Glasgow International Airport

Washington welcomes travelers from Glasgow with a range of transport options based on price, convenience, and proximity. For departures, Glasgow International Airport is roughly a 15-minute drive (covering about 9 miles) from central Glasgow. Washington city center is approximately a 40-minute drive (covering about 29 miles) from Washington Dulles International Airport, depending on traffic. Here's how to reach Washington efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Washington, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Washington Dulles International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Washington Dulles International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Washington Dulles International Airport, the Washington Dulles International Airport Metrorail Station, a metro station, is located about 0.2 miles away on foot, providing easy access to the city.

Frequently asked questions

How much does a flight from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $435 and cheap return flights from $680 Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights generally range between $705 and $4449, and roundtrip flights usually range from $792 to $4750. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest month to fly from GLA to IAD is November when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter GLA to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Finnair is one of the cheapest airlines offering connecting flights from Glasgow (GLA) to Washington, DC (IAD), with round-trip tickets starting from around $905. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Glasgow International Airport (GLA) to Washington Dulles International Airport (IAD) typically departs at around 5:50 AM. This seasonal service is operated by British Airways and American Airlines, allowing you to start your day early and maximize your time in Washington, DC. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Glasgow (GLA) to Washington, DC (IAD) are in the early morning, from 6am to 9am. About 51% of passengers prefer this time window. Many major carriers, including British Airways and American Airlines, offer flights during this window. This timing works well because it allows you to arrive in Washington with a full day ahead to explore the city.
How long does it take to fly from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Flying from GLA to IAD with a connection usually takes about 12 hours 20 minutes, traveling roughly 3,429 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Business class is available on flights from GLA to IAD. Airlines that offer business class service on this route include:

  • British Airways
  • KLM
  • Icelandair
  • Lufthansa

How do I earn miles on a Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Glasgow Intl. (GLA)?
From Glasgow Intl. (GLA), you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD) in Washington. Some flights may connect through major hubs like Heathrow (LHR), Schiphol (AMS), DUB (DUB) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Glasgow (GLA-Glasgow Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Glasgow Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, United, Virgin Atlantic
Roundtrip price
$679
Distance
3428 mi

Book with confidence

Glasgow to Washington Flights

The cheapest times to fly from Glasgow to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Glasgow to Washington are during the month of November. You can find some of the cheapest flights from Glasgow to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Glasgow to Washington

Sunday is one of the best days to book for cheap flights from Glasgow to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Glasgow to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Glasgow to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $435 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Glasgow to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Glasgow to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Glasgow to Washington Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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