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Cheap flights from Bilbao to Porto from £28

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — OPO
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bilbao to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Bilbao to Porto
Explore the most affordable flight options available from Bilbao to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Sun 27/919:50 -
Nonstop1h 20m
Wed 30/906:35 -
1 stop6h 20m
Deal found 9/8£58
Wed 23/918:20 -
Nonstop1h 20m
Tue 29/920:15 -
Nonstop1h 15m
Deal found 13/8£61
Thu 24/919:45 -
Nonstop1h 20m
Tue 29/922:00 -
1 stop9h 15m
Deal found 10/8£67
Thu 24/920:05 -
Nonstop1h 20m
Thu 1/1020:55 -
Nonstop1h 15m
Deal found 10/8£71
Thu 24/920:05 -
Nonstop1h 20m
Sun 27/920:50 -
Nonstop1h 20m
Deal found 10/8£74
Thu 8/1020:05 -
Nonstop1h 20m
Sun 11/1020:50 -
Nonstop1h 20m
Deal found 10/8£75
Wed 23/918:20 -
Nonstop1h 20m
Tue 29/921:30 -
1 stop10h 05m
Deal found 13/8£78
Wed 14/1018:20 -
Nonstop1h 20m
Wed 14/1022:00 -
1 stop9h 15m
Deal found 11/8£83
Sun 27/919:50 -
Nonstop1h 20m
Sun 4/1020:50 -
Nonstop1h 20m
Deal found 13/8£84
Mon 28/922:30 -
1 stop9h 50m
Mon 5/1021:45 -
1 stop13h 40m
Deal found 14/8£87

Find flight deals from Bilbao to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 August 2026.

Round-trip from

£58

One-way from

£28

Popular in

August

Cheapest in

January

Average price

£118
27/9-30/9
  • 27/9-30/9
  • 1 total stop
  • 7h 40m total
  • Bilbao to Porto
Search Deals
Volotea
  • Volotea
  • 4/10
  • Nonstop
  • 1h 20m total
  • Bilbao to Porto
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bilbao to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from Bilbao to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Thu 24/9

19:45-20:05

Nonstop1h 20m

Porto

Tue 29/9

22:00-08:15

1 stop9h 15m

£67
Fastest return journey

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Sun 27/9

19:50-20:10

Nonstop1h 20m

Porto

Sun 4/10

20:50-23:10

Nonstop1h 20m

£84

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Wed 9/9

08:20-10:50

1 stop3h 30m

Porto

Sun 13/9

07:35-11:55

1 stop3h 20m

£114

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Sat 26/12

19:10-19:30

Nonstop1h 20m

Porto

Fri 1/1

08:45-17:40

1 stop7h 55m

£114

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Thu 24/12

12:10-07:30

1 stop20h 20m

Porto

Sat 2/1

05:00-11:25

1 stop5h 25m

£123

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Tue 22/9

08:20-10:50

1 stop3h 30m

Porto

Wed 23/9

11:35-15:55

1 stop3h 20m

£135

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Tue 22/9

19:15-19:35

Nonstop1h 20m

Porto

Wed 30/9

22:00-08:15

1 stop9h 15m

£212

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Mon 24/8

12:45-06:50

1 stop19h 05m

Porto

Fri 28/8

20:10-07:35

1 stop10h 25m

£231

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Sat 5/9

12:00-22:15

1 stop11h 15m

Porto

Tue 8/9

05:00-15:55

2 stops9h 55m

£299

BilbaoPorto

BIO Bilbao - OPO Porto

BIOOPO

Bilbao

Thu 24/12

08:30-19:20

2 stops11h 50m

Porto

Sat 2/1

05:55-17:25

1 stop10h 30m

£319

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Best time to book a flight from Bilbao to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Bilbao with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bilbao to Porto

How far ahead should I book a flight from Bilbao to Porto?

The price you pay for your flight from Bilbao to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Bilbao to Porto?

Currently, January is the cheapest month in which you can book a flight from Bilbao to Porto (average of £58). Flying from Bilbao to Porto in August is currently the most expensive (average of £115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BIO to OPO?

Find hourly flight availability from Bilbao to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 August 2026.

When flying from Bilbao to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Bilbao to Porto?

Airfare is below average for this route at the moment.

Bilbao to Porto flights typically cost between £91 and £148 in September.
The cheapest return price found within the last 5 days was £58 on Multiple Airlines (27 Sept–30 Sept).

Related info for your journey

Find useful and relevant information for your journey from Bilbao to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bilbao to Porto?

    Departing from Bilbao to Porto will take you 1h 20m. The distance from Bilbao to Porto is about 327 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Bilbao to Porto?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Bilbao to Porto on time: Vueling (92%), Volotea (57%), TAP AIR PORTUGAL (57%).

  • Can I find deals for flights from Bilbao to Porto that include hotel bookings?

    Yes. In addition to deals on Bilbao to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to Porto.

  • Can I find deals for business class flights from Bilbao to Porto?

    Yes. Cheapflights offers flight deals from Bilbao to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bilbao to Porto?

    Currently, January is the cheapest month in which you can book a flight from Bilbao to Porto (average of £58). Flying from Bilbao to Porto in August is currently the most expensive (average of £115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Guimarães
Santa Maria da Feira
Viseu
Chaves
Coimbra
Aveiro
Vila Nova de Gaia

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Cheapflights makes it easy to find Bilbao to Porto flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Bilbao to Porto?

Cheapflights simply makes it quick and affordable to book flights from Bilbao to Porto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Bilbao to Porto with no change fees?

Need flexible booking options for your flight to Porto from Bilbao? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Bilbao to Porto become cheaper?

Of course! You can now track prices for flights from Bilbao to Porto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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