DEN - BIO

$322 Find Cheap Flights from Denver to Bilbao

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Bilbao departing on 7/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Bilbao

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Bilbao, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Bilbao, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$748
Typical prices: $889-$797
Iberia
Sun 10/11Tue 10/20
DEN - BIO • 2 stops
Cheapest one-way
$322
Multiple Airlines
Mon 7/27
DEN - BIO • 2 stops
Top airlines
Cheapest • from $748 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Denver and Bilbao. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $693 (round-trip)
Shortest trip • 13h 37m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 38% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bilbao!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Bilbao (DEN-BIO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Bilbao that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Bilbao

Sun, Oct 11 - Tue, Oct 20
Iberia Logo
6:35 pm - 10:40 pm
DEN
-
BIO
20h 05m
2 stops
Iberia Logo
9:15 am - 10:21 pm
BIO
-
DEN
21h 06m
2 stops
$748Iberia
Sun, Oct 11 - Tue, Oct 20
Lufthansa Logo
4:05 pm - 11:25 pm
DEN
-
BIO
23h 20m
1 stop
Lufthansa Logo
6:50 am - 3:40 pm
BIO
-
DEN
16h 50m
1 stop
$772Lufthansa
Sun, Oct 11 - Tue, Oct 20
Lufthansa Logo
4:05 pm - 11:25 pm
DEN
-
BIO
23h 20m
1 stop
Lufthansa Logo
2:05 pm - 11:53 pm
BIO
-
DEN
17h 48m
2 stops
$787Lufthansa
Sun, Sep 20 - Tue, Sep 29
Air Canada Logo
7:16 pm - 5:55 pm
DEN
-
BIO
38h 39m
2 stops
Air Canada Logo
7:15 am - 12:31 pm
BIO
-
DEN
37h 16m
2 stops
$790Air Canada
Mon, Sep 21 - Tue, Sep 29
Air Canada Logo
11:25 am - 5:55 pm
DEN
-
BIO
22h 30m
2 stops
Air Canada Logo
7:15 am - 11:08 pm
BIO
-
DEN
23h 53m
2 stops
$793Air Canada
Sat, Oct 17 - Mon, Oct 26
British Airways Logo
4:21 pm - 12:45 pm
DEN
-
BIO
36h 24m
2 stops
British Airways Logo
9:35 pm - 8:32 pm
BIO
-
DEN
29h 57m
2 stops
$795British Airways
Sun, Sep 20 - Tue, Sep 29
United Airlines Logo
4:15 pm - 5:55 pm
DEN
-
BIO
17h 40m
1 stop
United Airlines Logo
6:50 am - 10:29 pm
BIO
-
DEN
23h 39m
2 stops
$798United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
7:45 am - 10:45 am
DEN
-
BIO
19h 00m
2 stops
United Airlines Logo
11:10 am - 11:53 pm
BIO
-
DEN
20h 43m
2 stops
$800United Airlines
Mon, Aug 17 - Fri, Aug 28
Lufthansa Logo
4:15 pm - 5:55 pm
DEN
-
BIO
17h 40m
1 stop
Lufthansa Logo
6:45 am - 3:40 pm
BIO
-
DEN
16h 55m
1 stop
$803Lufthansa
Tue, Aug 11 - Wed, Aug 19
Lufthansa Logo
4:15 pm - 11:25 pm
DEN
-
BIO
23h 10m
1 stop
Lufthansa Logo
7:15 am - 1:45 pm
BIO
-
DEN
14h 30m
1 stop
$804Lufthansa
Booking Insights

KAYAK's insights & trends for Denver to Bilbao flights

Get data-powered insights and trends into flights from Denver to Bilbao to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Bilbao?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Bilbao departing in October.

What is the cheapest month to fly from Denver to Bilbao?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Bilbao, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Bilbao is February, where tickets cost $573 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,365 and $1,275 respectively.

Good to know

Low seasonJanuary
Cheapest flight$322
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 38% increase in price.
Flight from Denver to Bilbao

When to book flights from Denver to Bilbao

Are your dates flexible? Find out the best times to travel from Denver to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Bilbao

  • What is the cheapest flight from Denver to Bilbao?

    In the last 5 days, the lowest price for a flight from Denver to Bilbao was $333 for a one-way ticket and $748 for a round-trip.

  • Do I need a passport to fly between Denver and Bilbao?

    A passport is required to fly from Denver to Bilbao.

  • Which airports will I be using when flying from Denver to Bilbao?

    Denver and Bilbao are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Bilbao.

  • Which aircraft models fly most regularly from Denver to Bilbao?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Bilbao?

    Star Alliance is the only airline alliance operating flights between Denver and Bilbao.

  • Which is the best airline for flights from Denver to Bilbao, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Denver to Bilbao are United Airlines and Lufthansa. With an average price for the route of $900 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $866 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Denver to Bilbao?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Bilbao.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Bilbao?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Bilbao?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Denver with another airline. Booking your flights between Denver and BIO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Bilbao?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Denver to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from Denver to Bilbao. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Bilbao? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9831 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

2.0 MediocreMike, Jun 2026
DEN - SNA
Read more United Airlines reviews

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

This is a very basic flight with no-frills. I just wish the seats were a little bit more comfortable.

Everything you need to know for your flight from Denver to Bilbao

Information on your arrival and departure airports