$136 Cheap Flights from Istanbul (IST) to Bilbao (BIO)

View $136 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Istanbul Airport (IST) to Bilbao Airport (BIO)

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Cheap Flights from Istanbul to Bilbao (IST-BIO)

Prices were available within the past 7 days and start at $136 for one-way flights and $340 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, Jul 21 - Fri, Aug 15
IST
Istanbul
BIO
Bilbao
$340 Roundtrip, found 10 hours ago
$340
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Jul 21 from Istanbul to Bilbao, returning Fri, Aug 15, priced at $340 found 10 hours ago
Lufthansa
Mon, Jul 21 - Fri, Aug 15
IST
Istanbul
BIO
Bilbao
$368 Roundtrip, found 10 hours ago
$368
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Jul 21 from Istanbul to Bilbao, returning Fri, Aug 15, priced at $368 found 10 hours ago
Lufthansa
Mon, Jul 21 - Fri, Aug 15
IST
Istanbul
BIO
Bilbao
$386 Roundtrip, found 10 hours ago
$386
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Jul 21 from Istanbul to Bilbao, returning Fri, Aug 15, priced at $386 found 10 hours ago
Lufthansa
Mon, Jul 21 - Fri, Aug 15
IST
Istanbul
BIO
Bilbao
$397 Roundtrip, found 10 hours ago
$397
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Jul 21 from Istanbul to Bilbao, returning Fri, Aug 15, priced at $397 found 10 hours ago
Lufthansa
Mon, Jul 21 - Fri, Aug 15
IST
Istanbul
BIO
Bilbao
$405 Roundtrip, found 10 hours ago
$405
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Jul 21 from Istanbul to Bilbao, returning Fri, Aug 15, priced at $405 found 10 hours ago
Lufthansa
Mon, Jul 21 - Fri, Aug 15
IST
Istanbul
BIO
Bilbao
$413 Roundtrip, found 10 hours ago
$413
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Jul 21 from Istanbul to Bilbao, returning Fri, Aug 15, priced at $413 found 10 hours ago
Aegean
Mon, Aug 11 - Mon, Aug 25
IST
Istanbul
BIO
Bilbao
$430 Roundtrip, found 3 days ago
$430
Roundtrip
found 3 days ago
Select Aegean flight, departing Mon, Aug 11 from Istanbul to Bilbao, returning Mon, Aug 25, priced at $430 found 3 days ago
Air Europa
Tue, Sep 9 - Sat, Sep 13
IST
Istanbul
BIO
Bilbao
$433 Roundtrip, found 6 days ago
$433
Roundtrip
found 6 days ago
Select Air Europa flight, departing Tue, Sep 9 from Istanbul to Bilbao, returning Sat, Sep 13, priced at $433 found 6 days ago
Turkish Airlines
Mon, Sep 1 - Sat, Sep 6
IST
Istanbul
BIO
Bilbao
$473 Roundtrip, found 3 days ago
$473
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Mon, Sep 1 from Istanbul to Bilbao, returning Sat, Sep 6, priced at $473 found 3 days ago
Vueling Airlines
Tue, Sep 9 - Sat, Sep 13
IST
Istanbul
BIO
Bilbao
$556 Roundtrip, found 6 days ago
$556
Roundtrip
found 6 days ago
Select Vueling Airlines flight, departing Tue, Sep 9 from Istanbul to Bilbao, returning Sat, Sep 13, priced at $556 found 6 days ago
Flights from Istanbul (IST) to Bilbao (BIO)
Origin airport
Istanbul
Destination airport
Bilbao
Airlines serving
Aegean, Air Europa, Iberia, Lufthansa, Turkish Airlines
Roundtrip price
$340
Distance
1614 mi
Average flight time
3 hours 17 mins

Istanbul to Bilbao Flights

The cheapest times to fly from Istanbul 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 Istanbul to Bilbao are during the month of July. You can find some of the cheapest flights from Istanbul to Bilbao with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Istanbul to Bilbao

Sunday is one of the best days to book for cheap flights from Istanbul 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 Istanbul 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 Istanbul to Bilbao in 2025. You can also book with separate airlines for your outbound and return journeys, from $136 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 Istanbul 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 Istanbul 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.

 

Frequently asked questions

How much does a flight from Istanbul (IST) to Bilbao Airport (BIO) cost?
Cheap round-trip flights from Istanbul (IST) to Bilbao Airport (BIO) start at $1860. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Turkish Airlines flight leaving IST on July 2 2025 and touching down at BIO. The price was last updated on July 1 2025 and has not changed since.
What is the cheapest month to fly from IST to BIO?
To pick up a cheap fare, search for nonstop flights from IST to BIO departing in September. You can find a one-way Turkish Airlines flight for $515 leaving on September 27 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on July 1 2025 and remains unchanged.
Which airlines fly direct from Istanbul (IST) to Bilbao Airport (BIO)?
There aren't any direct flights from Istanbul (IST) to Bilbao Airport (BIO). However, there are other airports with nonstop flights. Board your plane at Ataturk Intl. Airport (IST) and fly straight to Bilbao without layovers.
What is the cheapest airline that flies from IST to BIO?
Right now, the cheapest carrier offering one-way flights from IST to BIO is Turkish Airlines. You can jet off on this route from $773. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IST on August 11 2025. Prices were last updated on July 1 2025 and have not changed since.
How many flights per day from Istanbul (IST) to Bilbao Airport (BIO)?
There aren't any daily nonstop flights departing from Istanbul (IST) to Bilbao Airport (BIO). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from IST to BIO?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Istanbul (IST) to Bilbao Airport (BIO)?
To avoid possible delays on the Istanbul (IST) to Bilbao Airport (BIO) route, aim to fly before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Istanbul (IST) to Bilbao Airport (BIO) last-minute?
Waiting until just before your trip to book your flight from IST to BIO generally means paying more. Although you may find some last-minute offers, there's no guarantee. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book an IST to BIO flight and hotel package?
Compared with arranging hotels and flights separately, booking an IST to BIO flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Just secure your flights and choose from our wide range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Istanbul (IST) to Bilbao Airport (BIO)?
If you reserved your IST to BIO flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.