$584 Cheap Flights from Washington (DCA) to Biarritz (BIQ)

View $584 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Biarritz (BIQ-Pays Basque)

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Cheap Flights from Washington to Biarritz (DCA-BIQ)

Prices were available within the past 7 days and start at $584 for one-way flights and $787 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Dec 3 - Sat, Dec 13
DCA
Washington
BIQ
Biarritz
$787 Roundtrip, found 7 hours ago
$787
Roundtrip
found 7 hours ago
Select Delta flight, departing Wed, Dec 3 from Washington to Biarritz, returning Sat, Dec 13, priced at $787 found 7 hours ago
Delta
Wed, Dec 3 - Thu, Dec 18
DCA
Washington
BIQ
Biarritz
$813 Roundtrip, found 7 hours ago
$813
Roundtrip
found 7 hours ago
Select Delta flight, departing Wed, Dec 3 from Washington to Biarritz, returning Thu, Dec 18, priced at $813 found 7 hours ago
Delta
Sat, Nov 15 - Mon, Dec 1
DCA
Washington
BIQ
Biarritz
$825 Roundtrip, found 7 hours ago
$825
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, Nov 15 from Washington to Biarritz, returning Mon, Dec 1, priced at $825 found 7 hours ago
KLM
Sat, Nov 29 - Thu, Dec 18
DCA
Washington
BIQ
Biarritz
$839 Roundtrip, found 7 hours ago
$839
Roundtrip
found 7 hours ago
Select KLM flight, departing Sat, Nov 29 from Washington to Biarritz, returning Thu, Dec 18, priced at $839 found 7 hours ago
KLM
Sun, Nov 16 - Mon, Dec 1
DCA
Washington
BIQ
Biarritz
$852 Roundtrip, found 7 hours ago
$852
Roundtrip
found 7 hours ago
Select KLM flight, departing Sun, Nov 16 from Washington to Biarritz, returning Mon, Dec 1, priced at $852 found 7 hours ago
Delta
Mon, Oct 20 - Tue, Nov 4
DCA
Washington
BIQ
Biarritz
$886 Roundtrip, found 7 hours ago
$886
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Oct 20 from Washington to Biarritz, returning Tue, Nov 4, priced at $886 found 7 hours ago
Delta
Mon, Nov 10 - Thu, Nov 27
DCA
Washington
BIQ
Biarritz
$887 Roundtrip, found 7 hours ago
$887
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Nov 10 from Washington to Biarritz, returning Thu, Nov 27, priced at $887 found 7 hours ago
KLM
Sun, Nov 30 - Sat, Dec 13
DCA
Washington
BIQ
Biarritz
$908 Roundtrip, found 7 hours ago
$908
Roundtrip
found 7 hours ago
Select KLM flight, departing Sun, Nov 30 from Washington to Biarritz, returning Sat, Dec 13, priced at $908 found 7 hours ago
Delta
Tue, Nov 11 - Mon, Nov 24
DCA
Washington
BIQ
Biarritz
$926 Roundtrip, found 7 hours ago
$926
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Nov 11 from Washington to Biarritz, returning Mon, Nov 24, priced at $926 found 7 hours ago
KLM
Sun, Nov 30 - Thu, Dec 18
DCA
Washington
BIQ
Biarritz
$934 Roundtrip, found 7 hours ago
$934
Roundtrip
found 7 hours ago
Select KLM flight, departing Sun, Nov 30 from Washington to Biarritz, returning Thu, Dec 18, priced at $934 found 7 hours ago
Flights from Washington (DCA) to Biarritz (BIQ)
Origin airport
Ronald Reagan Washington National
Destination airport
Pays Basque
Roundtrip price
$786
Distance
3802 mi

Washington to Biarritz Flights

The cheapest times to fly from Washington to Biarritz

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

 

The best time to book a flight from Washington to Biarritz

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

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 Biarritz in 2025. You can also book with separate airlines for your outbound and return journeys, from $584 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 Biarritz 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 Biarritz 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 Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ) cost?
Snag a cheap one-way flight from $584 or cheap return flight from $787 from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ)?
The cheapest month to fly from DCA to BIQ is December, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ)?
To find the cheapest airline that'll fly you from DCA to BIQ, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ)?
Direct flights from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to BIQ?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ)?
To reach Pays Basque Airport (BIQ) on schedule, book a flight that leaves Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ) last-minute?
Booking your plane ticket from DCA to BIQ shortly before your getaway is generally more expensive. But if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a DCA to BIQ flight and hotel package?
Booking a DCA to BIQ flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Pays Basque Airport (BIQ)?
If you booked your DCA to BIQ flight in the last 24 hours, you may be able to cancel or modify 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 want more information.

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*Available to One Key members.