Cheap Flights from Denver International to Bilbao

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Compare Denver International to Bilbao flight deals

Find the cheapest month or even day of the year to fly to Bilbao

Book the best Bilbao fare with no extra fees

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Flight deals from Denver International to Bilbao

Looking for a cheap last-minute deal or the best return flight from Denver International Airport to Bilbao Airport? If you want to travel next month, return fares start from $1,357. Find the lowest prices on one-way and return tickets right here.

Bilbao.$1,212 per passenger.Departing Tue, 22 Sep, returning Wed, 14 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Tue, 22 Sep, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Wed, 14 Oct, arriving in Denver International.Price includes taxes and charges.From $1,212, select.

Bilbao.$1,259 per passenger.Departing Tue, 23 Mar, returning Wed, 14 Apr.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Denver International on Tue, 23 Mar, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Wed, 14 Apr, arriving in Denver International.Price includes taxes and charges.From $1,259, select.

Bilbao.$1,259 per passenger.Departing Tue, 2 Mar, returning Tue, 9 Mar.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Denver International on Tue, 2 Mar, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Tue, 9 Mar, arriving in Denver International.Price includes taxes and charges.From $1,259, select.

Bilbao.$1,259 per passenger.Departing Tue, 27 Apr, returning Tue, 4 May.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Denver International on Tue, 27 Apr, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Tue, 4 May, arriving in Denver International.Price includes taxes and charges.From $1,259, select.

Bilbao.$1,259 per passenger.Departing Tue, 13 Apr, returning Tue, 20 Apr.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Denver International on Tue, 13 Apr, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Tue, 20 Apr, arriving in Denver International.Price includes taxes and charges.From $1,259, select.

Bilbao.$1,271 per passenger.Departing Wed, 6 Jan, returning Thu, 14 Jan.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Denver International on Wed, 6 Jan, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Thu, 14 Jan, arriving in Denver International.Price includes taxes and charges.From $1,271, select.

Bilbao.$1,287 per passenger.Departing Thu, 19 Nov, returning Sun, 29 Nov.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Denver International on Thu, 19 Nov, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Sun, 29 Nov, arriving in Denver International.Price includes taxes and charges.From $1,287, select.

Bilbao.$1,312 per passenger.Departing Tue, 4 May, returning Tue, 11 May.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Denver International on Tue, 4 May, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Tue, 11 May, arriving in Denver International.Price includes taxes and charges.From $1,312, select.

Bilbao.$1,357 per passenger.Departing Wed, 21 Oct, returning Wed, 28 Oct.Return flight with United.Outbound indirect flight with United, departs from Denver International on Wed, 21 Oct, arriving in Bilbao.Inbound indirect flight with United, departs from Bilbao on Wed, 28 Oct, arriving in Denver International.Price includes taxes and charges.From $1,357, select.

Bilbao.$1,512 per passenger.Departing Tue, 13 Jul, returning Tue, 20 Jul.Return flight with United.Outbound indirect flight with United, departs from Denver International on Tue, 13 Jul, arriving in Bilbao.Inbound indirect flight with United, departs from Bilbao on Tue, 20 Jul, arriving in Denver International.Price includes taxes and charges.From $1,512, select.

Bilbao.$1,522 per passenger.Departing Mon, 31 May, returning Wed, 9 Jun.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Denver International on Mon, 31 May, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Wed, 9 Jun, arriving in Denver International.Price includes taxes and charges.From $1,522, select.

Bilbao.$1,679 per passenger.Departing Tue, 29 Jun, returning Tue, 6 Jul.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Denver International on Tue, 29 Jun, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Tue, 6 Jul, arriving in Denver International.Price includes taxes and charges.From $1,679, select.

Bilbao.$1,861 per passenger.Departing Wed, 23 Jun, returning Wed, 30 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Wed, 23 Jun, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Wed, 30 Jun, arriving in Denver International.Price includes taxes and charges.From $1,861, select.

Bilbao.$2,002 per passenger.Departing Tue, 22 Dec, returning Wed, 30 Dec.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Denver International on Tue, 22 Dec, arriving in Bilbao.Inbound indirect flight with Lufthansa, departs from Bilbao on Wed, 30 Dec, arriving in Denver International.Price includes taxes and charges.From $2,002, select.

Bilbao.$2,075 per passenger.Departing Tue, 22 Dec, returning Tue, 5 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Tue, 22 Dec, arriving in Bilbao.Inbound indirect flight with Delta, departs from Bilbao on Tue, 5 Jan, arriving in Denver International.Price includes taxes and charges.From $2,075, select.

Find the cheapest month to fly from Denver International to Bilbao

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Bilbao flights are currently cheapest in March.

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Denver International to Bilbao: Alternative routes

Compare routes from Denver International to Bilbao below. You may find an airport to fly into that's cheaper, faster, or easier than Bilbao.

Denver to Bilbao: Flight information

The things to know before you go.

Cheapest flight found	$1,212
Cheapest month to fly	September

Finding cheap flights from Denver International to Bilbao: Frequently asked questions

How much are return flights from Denver International to Bilbao?

The best price we found for a return flight from Denver International to Bilbao is $1,212. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Denver International to Bilbao?

Currently, there are no airlines that fly direct from Denver International to Bilbao. But we found flights with one or more stops from $1,212.

How many flights are there a week from Denver International to Bilbao?

As of September 2026, there are no flights flying from Denver International to Bilbao.

When is the cheapest time to fly from Denver International to Bilbao?

The cheapest month to fly from Denver International to Bilbao is usually September.

Which upcoming date is cheapest to fly from Denver International Airport to Bilbao Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Bilbao Airport on Tuesday, 22 September 2026.

Can I get a direct flight from Denver International Airport to Bilbao Airport?

No airlines currently offer direct flights between Denver International Airport and Bilbao Airport. Most routes have one or more stops.

How can I find the best flight deal to Bilbao?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bilbao but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Bilbao?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bilbao is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Denver International Airport to Bilbao with?

Currently, Delta offers the cheapest flight tickets to Bilbao.

Flying from Denver International Airport (DEN) to Bilbao Airport (BIO): what you need to know

Bilbao's timezone is UTC+1, making Bilbao eight hours ahead of Denver.
For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to board your DEN to BIO flight.
Flying during a peak time like July? Public holidays and other popular seasons can mean longer lines and delays at airport checkpoints. Play things extra safe and get there up to four hours ahead of international flights and two hours before domestic departures.
We make it a breeze to book a flight with a stopover. To see all your options for tickets from Denver International Airport to Bilbao Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Worthwhile stopovers between DEN and BIO include:
- Frankfurt am Main Airport
- Munich Airport
- Dublin Airport

How to find the cheapest flights from Denver International Airport (DEN) to Bilbao Airport (BIO)

Currently, $580 is the lowest price we've found for a one-way Denver International Airport to Bilbao Airport flight. The best price for a return plane ticket is $1,212. Bear in mind that fares can change due to availability when booking.
Don't wait until the last minute. You're more likely to find cheap tickets from DEN to BIO if you book early. Airlines often offer some excellent early bird discounts.
If you're willing to be flexible with your travel plans, use the 'Whole month' search tool. It'll find the cheapest price across the month when searching for a flight from Denver International Airport to Bilbao Airport.
Snapping up cheap flights from DEN to BIO is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when fares go down.
Tailor your flights using filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from Denver International Airport to Bilbao Airport.

Handy information about Denver International Airport (DEN)

You'll find DEN at 8500 Pena Boulevard.
80% of flights departing from Denver International Airport land at their destination on schedule. Given its dependable on-time performance, delays are unlikely when taking off from DEN.
Central Denver to Denver International Airport is approximately 40 kilometres. Depending on traffic, it'll take about 35 minutes to get there if you're driving, catching a taxi or ride-sharing.
Catching public transport? You can expect a journey time of around 35 minutes.
Spending the night in a hotel can take the stress out of getting to the airport on time. If you want a place to stay before your flight from Denver International Airport to Bilbao Airport, have a look at Baymont by Wyndham Denver International Airport. It's a quick drive from DEN.

Arriving at Bilbao Airport (BIO)

The last thing you need is a long journey to your hotel if you're getting in late on a Denver International Airport to Bilbao Airport flight. Check in to one of these accommodation options near BIO instead:
Follow your own route with a Bilbao Airport rental car. Book your wheels from Record Go, Click and Rent or Goldcar and venture far and wide through Bilbao and beyond.
Lock in the lowest price by reserving your ride from Bilbao Airport about four weeks before your trip.

When to fly to Bilbao Airport (BIO)

It's time to plan your travel dates for your flight from Denver International Airport to Bilbao Airport. June is the busiest month to visit Bilbao. If you'd like a more relaxed vibe, go in March.
When reserving your flight from Denver International Airport to Bilbao Airport, think about the type of weather you like. August is the warmest month in Bilbao, with temperatures ranging from 16ºC to 26ºC.
January has average temperatures of between 5ºC and 13ºC. Search for cheap tickets from DEN to BIO sometime then if you like cooler conditions.

Explore more of Spain

Bilbao has plenty going for it, but there are so many other parts of Spain waiting to be discovered. Around 241 kilometres south-east of Bilbao, a trip to Zaragoza will keep you on the go. Check out popular attractions like Plaza del Pilar, La Seo del Salvador and Basílica de Nuestra Senora del Pilar.
Salamanca is another favourite destination in Spain and is around 338 kilometres south-west of Bilbao. No journey is complete without a visit to Catedral de Salamanca, Salamanca, Casco Historico and Plaza Mayor.