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$299 Cheap Flights from Washington (IAD) to Glasgow (GLA)

View $299 flight on Mon, Nov 2, 2026Opens in a new window

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

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Cheap Flights from Washington to Glasgow (IAD-GLA)

Prices were available within the past 7 days and start at $299 for one-way flights and $761 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sun, Nov 1 - Wed, Nov 11
IAD
Washington
GLA
Glasgow
$761 Roundtrip, found 4 hours ago
$761
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Sun, Nov 1 from Washington to Glasgow, returning Wed, Nov 11, priced at $761 found 4 hours ago
Icelandair
Mon, Nov 9 - Mon, Nov 16
IAD
Washington
GLA
Glasgow
$767 Roundtrip, found 4 hours ago
$767
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Mon, Nov 9 from Washington to Glasgow, returning Mon, Nov 16, priced at $767 found 4 hours ago
Icelandair
Tue, Sep 22 - Fri, Oct 2
IAD
Washington
GLA
Glasgow
$768 Roundtrip, found 6 hours ago
$768
Roundtrip
found 6 hours ago
Select Icelandair flight, departing Tue, Sep 22 from Washington to Glasgow, returning Fri, Oct 2, priced at $768 found 6 hours ago
Icelandair
Fri, Jan 8 - Fri, Jan 15
IAD
Washington
GLA
Glasgow
$773 Roundtrip, found 2 hours ago
$773
Roundtrip
found 2 hours ago
Select Icelandair flight, departing Fri, Jan 8 from Washington to Glasgow, returning Fri, Jan 15, priced at $773 found 2 hours ago
Icelandair
Mon, Aug 24 - Fri, Dec 18
IAD
Washington
GLA
Glasgow
$774 Roundtrip, found 9 hours ago
$774
Roundtrip
found 9 hours ago
Select Icelandair flight, departing Mon, Aug 24 from Washington to Glasgow, returning Fri, Dec 18, priced at $774 found 9 hours ago
Icelandair
Sat, Aug 22 - Fri, Sep 4
IAD
Washington
GLA
Glasgow
$775 Roundtrip, found 4 hours ago
$775
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Sat, Aug 22 from Washington to Glasgow, returning Fri, Sep 4, priced at $775 found 4 hours ago
Aer Lingus
Tue, Nov 3 - Thu, Nov 12
IAD
Washington
GLA
Glasgow
$930 Roundtrip, found 5 hours ago
$930
Roundtrip
found 5 hours ago
Select Aer Lingus flight, departing Tue, Nov 3 from Washington to Glasgow, returning Thu, Nov 12, priced at $930 found 5 hours ago
British Airways
Mon, Nov 2 - Sat, Nov 7
IAD
Washington
GLA
Glasgow
$934 Roundtrip, just found
$934
Roundtrip
just found
Select British Airways flight, departing Mon, Nov 2 from Washington to Glasgow, returning Sat, Nov 7, priced at $934 just found
American Airlines
Sun, Nov 1 - Wed, Nov 11
IAD
Washington
GLA
Glasgow
$945 Roundtrip, found 4 hours ago
$945
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sun, Nov 1 from Washington to Glasgow, returning Wed, Nov 11, priced at $945 found 4 hours ago
Iberia
Mon, Nov 2 - Sat, Nov 7
IAD
Washington
GLA
Glasgow
$945 Roundtrip, just found
$945
Roundtrip
just found
Select Iberia flight, departing Mon, Nov 2 from Washington to Glasgow, returning Sat, Nov 7, priced at $945 just found

Alternative airports near Glasgow

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Glasgow Intl. GLA. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $1,224
GLA
Glasgow Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $1,224

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

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

Explore an array of airlines offering flights from Washington Dulles International Airport (IAD) to Glasgow International Airport (GLA) on this international long-haul journey. You can compare options among full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel plans while you uncover the iconic sights and neighborhoods of Glasgow. Find essential details for planning your trip with ease.

  • Fastest flight duration: around 8h 15m in-flight, plus roughly 1h 45m layover with one stop
  • Route distance: roughly 3,400 miles (5,470 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $260–$790, depending on seasonality and how far ahead you book

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

Based on the latest traveler bookings, here are the top airlines favored for flights from Washington to Glasgow, particularly for one-stop services. Common layover points include Keflavik International Airport (KEF) with approximately a 1-hour layover, Heathrow Airport (LHR) offering around 2 hours, and Dublin Airport (DUB) which has a layover of about 1 hour and 45 minutes. These options provide the flexibility to balance price, total travel time, and cabin class to find your ideal itinerary.

  • Icelandair: As a full-service airline providing one-stop flights, Icelandair facilitates around 37% of departures on this route. One-way fares generally fall between $260 and $655. Passengers can expect an in-flight duration of 8 hours and 15 minutes, leading to a total travel time of about 10 hours, including layover.
  • British Airways: Offering one-stop services, British Airways represents roughly 25% of departures along this route. One-way fares typically range from $305 to $720. Travelers will experience an in-flight time of 8 hours and 15 minutes, resulting in an overall journey time of around 10 hours, factoring in the layover.
  • Aer Lingus: This full-service carrier provides one-stop service and accounts for about 16% of the departures on this route. Passengers can find one-way fares usually between $295 and $675. With an in-flight duration of 8 hours and 15 minutes, the total travel time is approximately 10 hours when considering layover.
  • American Airlines: Known for its one-stop service, American Airlines constitutes around 13% of departures on this route. One-way fares generally range from $305 to $910. The in-flight time is 8 hours and 15 minutes, leading to an estimated total journey time of about 10 hours, including layover.
  • Delta: As a full-service airline providing one-stop options, Delta features about 2% of departures on this route. One-way fares typically lie between $400 and $625. Expect an in-flight duration of 8 hours and 15 minutes, resulting in a total travel time of roughly 10 hours, including the layover.

Best time to fly from Washington (IAD) to Glasgow (GLA)

The most popular months for travelers flying from Washington to Glasgow are March, May, and September, when peak temperatures in Glasgow reach up to 53.6°F in September. If you prefer quieter travel, consider January, the least busy time to visit with temperatures around 38.3°F and typically the lowest average one-way fare (around $358). Flight availability peaks in September, with approximately 11 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: January usually offers good deals with average one-way fare around $358, roughly 23% cheaper than the yearly average.
  • Another budget-friendly time to fly: February typically offers an average one-way fare of around $380.
  • Most flight options: September has the highest number of flights from Washington to Glasgow, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January38.3°F (3.5°C)Moderately Low7$358
February39.0°F (3.9°C)Average8$380
March41.2°F (5.1°C)Moderately High9$402
April45.1°F (7.3°C)Average10$436
May49.8°F (9.9°C)Moderately High10$504
June55.2°F (12.9°C)Average9$610
July57.4°F (14.1°C)Average9$564
August56.3°F (13.5°C)Average10$522
September53.6°F (12.0°C)Moderately High11$416
October48.7°F (9.3°C)Moderately Low9$441
November43.0°F (6.1°C)Average9$475
December39.4°F (4.1°C)Moderately Low8$472

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

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

  • Washington to Edinburgh (IAD-EDI): Edinburgh Airport (EDI) is located approximately 42 miles from Glasgow International Airport (GLA). On this route, one-way economy tickets generally fall within the range of $325 to $1155, varying by season and advance booking. Both non-stop and one-stop flight options are available. Major airlines servicing this route include United and Aer Lingus. Additionally, travelers can choose business class on this route.
  • Washington to Edinburgh (DCA-EDI): Ronald Reagan Washington National Airport (DCA) is roughly 23 miles from Washington Dulles International Airport (IAD), while Edinburgh Airport (EDI) lies about 42 miles from Glasgow International Airport (GLA). Economy fares for one-way flights on this route typically range from $305 to $735, influenced by the time of year and how far in advance you book. This route is mostly serviced by one-stop flights, with common layovers at Logan International Airport (BOS) and John F. Kennedy International Airport (JFK). Leading airlines on this route include JetBlue Airways and United.

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

Getting some of the best deals on flights from Washington to Glasgow 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 usually found when booking 2 to 8 weeks in advance, although most travelers tend to book at least 2 months ahead. Evening departures between 6 PM and 12 AM are not only cheaper but also the most popular. Additionally, flying on Monday often leads to lower prices, while Tuesday remains the most favored 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.* Find Glasgow hotel and flight deals.
  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 Glasgow International Airport from Washington Dulles International Airport

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

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Glasgow, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Glasgow International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Glasgow 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 Glasgow International Airport, Glasgow Seaport, a seaport, is located about 0.4 miles away by car, while Paisley St James Station, a train station, is about 1.4 miles away by car. Additionally, Govan Station, a metro station, is situated approximately 6.5 miles from the airport, all easily accessible by car.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.) cost?
You can find cheap one-way flights from $299 and cheap return flights from $761 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.) with Expedia. One-way flights usually range from $393 to $5256, and return flights typically cost between $810 and $5599. 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
January is the cheapest month to fly from Washington, DC (IAD) to Glasgow (GLA), with average return fares around $636. This is about 17% lower than the average price throughout the year, as January typically sees a drop in travel demand after the holiday season. Other budget-friendly months to fly include February and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
Enter IAD to GLA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
British Airways is one of the cheapest airlines offering connecting flights from Washington Dulles Intl. (IAD) to Glasgow (GLA), with round-trip tickets starting from around $658. 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
The best time to fly from Washington, DC (IAD) to Glasgow (GLA) is in January or February. Both months have an average price of around $636, making them budget-friendly options. These months are ideal for travelers seeking lower fares and a variety of flight schedules, based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
The earliest flight from Washington, DC (IAD) to Glasgow (GLA) typically departs at around 5:00 AM, operated by American Airlines and Aer Lingus. This is a seasonal service active in May, allowing you to maximize your time in Scotland. 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
When flying from Washington Dulles Intl. (IAD) to Glasgow Intl. (GLA), the most popular departure times are in the evening, from 6pm to 9pm. About 39% of passengers prefer this time window. Many major carriers, including British Airways, Finnair and Aer Lingus, offer flights during this window. This timing is favored as it allows you to enjoy a full day in Washington before your flight.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
Flying from IAD to GLA with a connection usually takes about 13 hours 50 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
You can fly business class between IAD and GLA. Airlines that offer business class service on this route include:

  • British Airways
  • KLM
  • United Airlines
  • Delta Air Lines
  • Lufthansa
  • Icelandair
  • Iberia
  • Virgin Atlantic
  • Air France
  • Brussels Airlines

First class is available with United Airlines and Lufthansa.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow 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 Glasgow from Washington Dulles Intl. (IAD)?
From Washington Dulles Intl. (IAD), you can fly into Glasgow Intl. (GLA) to reach Glasgow. Some flights may connect through major hubs like Charlotte-Douglas Intl. (CLT), Detroit Metropolitan Wayne County (DTW), Hartsfield-Jackson Atlanta Intl. (ATL) before reaching Glasgow. 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.) Scotland 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 Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow Intl.)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Glasgow (GLA-Glasgow 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
Washington Dulles Intl.
Destination airport
Glasgow 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
$760
Distance
3428 mi

Book with confidence

Washington to Glasgow Flights

The cheapest times to fly from Washington to Glasgow

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 Washington to Glasgow are during the month of November. You can find some of the cheapest flights from Washington to Glasgow with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Glasgow

Sunday is one of the best days to book for cheap flights from Washington to Glasgow: 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 Washington to Glasgow

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 Washington to Glasgow in 2026. You can also book with separate airlines for your outbound and return journeys, from $299 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 Washington to Glasgow 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 Washington to Glasgow 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.

 

Washington to Glasgow Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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