Cheap Flights from Washington (IAD) to Lannion (LAI)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Lannion (LAI-Lannion - Cote de Granit)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Flights from Washington (IAD) to Lannion (LAI)
Origin airport
Washington Dulles Intl.
Destination airport
Lannion - Cote de Granit
Distance
3599 mi

Washington to Lannion Flights

The cheapest times to fly from Washington to Lannion

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

 

The best time to book a flight from Washington to Lannion

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

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 Lannion in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Lannion 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 Lannion 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI) cost?
Secure a cheap one-way flight or cheap return flight from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between IAD and LAI. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from IAD to LAI. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI)?
You'll need to take a flight with a layover when traveling from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from IAD to LAI?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI)?
To arrive at Lannion - Cote de Granit Airport (LAI) without delays, opt for a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI) last-minute?
Booking your plane ticket from IAD to LAI right before your getaway is typically more expensive. But if you're flexible with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an IAD to LAI flight and hotel package?
You'll generally save money by booking an IAD to LAI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your preferred flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Lannion - Cote de Granit Airport (LAI)?
Typically, you're able to cancel or reschedule your IAD to LAI flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further information, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.