$151 Cheap Flights from Bucharest (OTP) to Bilbao (BIO)

View $151 flight on Sun, Jan 25, 2026Opens in a new window

Popular airlines from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO)

    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

Cheap Flights from Bucharest to Bilbao (OTP-BIO)

Prices were available within the past 7 days and start at $151 for one-way flights and $202 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$202 Roundtrip, found 11 hours ago
$202
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $202 found 11 hours ago
Lufthansa
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$211 Roundtrip, found 11 hours ago
$211
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $211 found 11 hours ago
Lufthansa
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$221 Roundtrip, found 11 hours ago
$221
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $221 found 11 hours ago
Lufthansa
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$230 Roundtrip, found 11 hours ago
$230
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $230 found 11 hours ago
Lufthansa
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$230 Roundtrip, found 11 hours ago
$230
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $230 found 11 hours ago
Lufthansa
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$232 Roundtrip, found 11 hours ago
$232
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $232 found 11 hours ago
Swiss International Air Lines
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$264 Roundtrip, found 11 hours ago
$264
Roundtrip
found 11 hours ago
Select Swiss International Air Lines flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $264 found 11 hours ago
Austrian Airlines
Sat, Dec 6 - Sat, Dec 13
OTP
Bucharest
BIO
Bilbao
$277 Roundtrip, found 11 hours ago
$277
Roundtrip
found 11 hours ago
Select Austrian Airlines flight, departing Sat, Dec 6 from Bucharest to Bilbao, returning Sat, Dec 13, priced at $277 found 11 hours ago
Turkish Airlines
Wed, Dec 31 - Sat, Jan 3
OTP
Bucharest
BIO
Bilbao
$364 Roundtrip, found 6 days ago
$364
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Wed, Dec 31 from Bucharest to Bilbao, returning Sat, Jan 3, priced at $364 found 6 days ago
Air Serbia
Wed, Dec 31 - Sat, Jan 3
OTP
Bucharest
BIO
Bilbao
$714 Roundtrip, found 6 days ago
$714
Roundtrip
found 6 days ago
Select Air Serbia flight, departing Wed, Dec 31 from Bucharest to Bilbao, returning Sat, Jan 3, priced at $714 found 6 days ago

Frequently asked questions

How much does a flight from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO) cost?
Get a cheap one-way flight from $151 or cheap return flight from $202 from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO)?
The cheapest month to fly from OTP to BIO is December, when there's less demand. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest OTP to BIO flight.
How many flights per day from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO)?
There aren't any daily direct flights from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from OTP to BIO?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO)?
Choose a flight from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO) last-minute?
Last-minute fares from OTP to BIO are usually more expensive. For the best rates, start looking for flights as early as possible. That being said, if you're flexible with your travel plans, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book an OTP to BIO flight and hotel package?
Opting for an OTP to BIO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Henri Coanda Intl. Airport (OTP) to Bilbao Airport (BIO)?
Typically, you can cancel or reschedule your OTP to BIO flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Henri Coanda Intl.
Destination airport
Bilbao
Airlines serving
Air Europa, Austrian Airlines, Lufthansa, Swiss International Air Lines, Tarom-Romanian Air Transport, Turkish Airlines
Roundtrip price
$202
Distance
1436 mi

Book with confidence

Bucharest to Bilbao Flights

The cheapest times to fly from Bucharest to Bilbao

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

 

The best time to book a flight from Bucharest to Bilbao

Sunday is one of the best days to book for cheap flights from Bucharest to Bilbao: 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 Bucharest to Bilbao

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 Bucharest to Bilbao in 2025. You can also book with separate airlines for your outbound and return journeys, from $151 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 Bucharest to Bilbao 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 Bucharest to Bilbao 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.

 

Bucharest to Bilbao Flights

Explore a world of travel with Expedia

*Available to One Key members.