$32 Cheap Flights from Porto (OPO) to Castellon de la Plana (CDT)

View $32 flight on Sat, Sep 27, 2025Opens in a new window

Popular airlines from Porto Airport (OPO) to Castellon de la Plana (CDT-Castellón Costa Azahar)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Porto to Castellon de la Plana (OPO-CDT)

Prices were available within the past 7 days and start at $32 for one-way flights and $70 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Sat, Sep 6 - Tue, Sep 9
OPO
Porto
CDT
Castelló de la Plana
$70 Roundtrip, found 3 days ago
$70
Roundtrip
found 3 days ago
Select Ryanair flight, departing Sat, Sep 6 from Porto to Castelló de la Plana, returning Tue, Sep 9, priced at $70 found 3 days ago
Ryanair
Sat, Sep 6 - Tue, Sep 9
OPO
Porto
CDT
Castelló de la Plana
$77 Roundtrip, found 4 days ago
$77
Roundtrip
found 4 days ago
Select Ryanair flight, departing Sat, Sep 6 from Porto to Castelló de la Plana, returning Tue, Sep 9, priced at $77 found 4 days ago
Ryanair
Sat, Sep 6 - Tue, Sep 9
OPO
Porto
CDT
Castelló de la Plana
$77 Roundtrip, found 1 day ago
$77
Roundtrip
found 1 day ago
Select Ryanair flight, departing Sat, Sep 6 from Porto to Castelló de la Plana, returning Tue, Sep 9, priced at $77 found 1 day ago
Ryanair
Sat, Sep 6 - Tue, Sep 9
OPO
Porto
CDT
Castelló de la Plana
$82 Roundtrip, found 2 days ago
$82
Roundtrip
found 2 days ago
Select Ryanair flight, departing Sat, Sep 6 from Porto to Castelló de la Plana, returning Tue, Sep 9, priced at $82 found 2 days ago
Ryanair
Sat, Sep 6 - Tue, Sep 9
OPO
Porto
CDT
Castelló de la Plana
$86 Roundtrip, found 5 days ago
$86
Roundtrip
found 5 days ago
Select Ryanair flight, departing Sat, Sep 6 from Porto to Castelló de la Plana, returning Tue, Sep 9, priced at $86 found 5 days ago
Ryanair
Sat, Sep 6 - Tue, Sep 9
OPO
Porto
CDT
Castelló de la Plana
$117 Roundtrip, found 11 hours ago
$117
Roundtrip
found 11 hours ago
Select Ryanair flight, departing Sat, Sep 6 from Porto to Castelló de la Plana, returning Tue, Sep 9, priced at $117 found 11 hours ago
Ryanair
Sat, Aug 2 - Sat, Aug 9
OPO
Porto
CDT
Castelló de la Plana
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select Ryanair flight, departing Sat, Aug 2 from Porto to Castelló de la Plana, returning Sat, Aug 9, priced at $299 found 2 days ago
Iberia
Sun, Aug 3 - Sun, Aug 10
OPO
Porto
CDT
Castelló de la Plana
$433 Roundtrip, found 2 days ago
$433
Roundtrip
found 2 days ago
Select Iberia flight, departing Sun, Aug 3 from Porto to Castelló de la Plana, returning Sun, Aug 10, priced at $433 found 2 days ago
Iberia
Sun, Aug 3 - Sun, Aug 10
OPO
Porto
CDT
Castelló de la Plana
$520 Roundtrip, found 2 days ago
$520
Roundtrip
found 2 days ago
Select Iberia flight, departing Sun, Aug 3 from Porto to Castelló de la Plana, returning Sun, Aug 10, priced at $520 found 2 days ago
Iberia
Sun, Aug 3 - Sun, Aug 10
OPO
Porto
CDT
Castelló de la Plana
$642 Roundtrip, found 2 days ago
$642
Roundtrip
found 2 days ago
Select Iberia flight, departing Sun, Aug 3 from Porto to Castelló de la Plana, returning Sun, Aug 10, priced at $642 found 2 days ago
Flights from Porto (OPO) to Castellon de la Plana (CDT)
Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Castellón Costa Azahar
Airlines serving
Ryanair
Roundtrip price
$70
Distance
462 mi
Average flight time
1 hour 25 mins

Porto to Castellon de la Plana Flights

The cheapest times to fly from Porto to Castellon de la Plana

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 Porto to Castellon de la Plana are during the month of September. You can find some of the cheapest flights from Porto to Castellon de la Plana with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to Castellon de la Plana

Sunday is one of the best days to book for cheap flights from Porto to Castellon de la Plana: 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 Porto to Castellon de la Plana

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 Porto to Castellon de la Plana in 2025. You can also book with separate airlines for your outbound and return journeys, from $32 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 Porto to Castellon de la Plana 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 Porto to Castellon de la Plana 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 Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT) cost?
Cheap return flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT) start at $92. 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 Ryanair flight leaving OPO on August 5 2025 and touching down at CDT. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from OPO to CDT?
The cheapest flights from OPO to CDT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from OPO to CDT?
At the moment, the cheapest carrier operating one-way flights from OPO to CDT is Ryanair. You can book a seat on this route from $61. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from OPO on August 19 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT)?
You'll have to book a flight with a layover if you're traveling from Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from OPO to CDT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT)?
Opt for a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT) that takes off before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be 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.
What airports do you fly into for Castelló de la Plana from Dr. Francisco de Sa Carneiro Airport (OPO)?
Valencia Airport (VLC) is the only airport in Castelló de la Plana with direct flights from Dr. Francisco de Sa Carneiro Airport (OPO). Consider the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT) last-minute?
Waiting until right before your break to book a ticket from OPO to CDT generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Is it cheaper to book an OPO to CDT flight and hotel package?
Securing an OPO to CDT flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Castellón Costa Azahar Airport (CDT)?
If you booked your OPO to CDT 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 fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Explore a world of travel with Expedia

*Available to One Key members.