HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$614+ Cheap flights from Colorado to Bilbao (BIO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BIO
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Bilbao with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Colorado to Bilbao

Cheapest flights from Colorado to Bilbao
Explore the most affordable flight options available from Colorado to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Trip.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:40 pmDEN - BIO
2 stops18h 55mMultiple Airlines
Sat 11/226:15 pmBIO - DEN
2 stops31h 50mMultiple Airlines
Deal found 11/6$614
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/243:40 pmDEN - BIO
2 stops22h 55mMultiple Airlines
Tue 12/97:45 amBIO - DEN
2 stops18h 20mMultiple Airlines
Deal found 11/5$625
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:20 pmDEN - BIO
1 stop17h 45mUnited Airlines
Thu 12/116:45 amBIO - DEN
1 stop14h 55mUnited Airlines
Deal found 11/6$767
This lol.travel deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/244:05 pmDEN - BIO
2 stops23h 00mLufthansa
Tue 12/97:45 amBIO - DEN
1 stop16h 15mLufthansa
Deal found 11/5$805
This Gotogate deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:15 amDEN - BIO
2 stops17h 35mAir Canada
Tue 12/96:45 amBIO - DEN
2 stops17h 55mAir Canada
Deal found 11/5$807
This Gotogate deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/54:20 pmDEN - BIO
1 stop23h 00mMultiple Airlines
Sun 12/1412:45 pmBIO - DEN
2 stops29h 38mMultiple Airlines
Deal found 11/5$813

Cheap flight deals from Colorado to Bilbao

Keep the following information in mind while searching for Colorado to Bilbao flight deals. Data was last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$614
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$737
Provider with most accurate pricing for Denver Intl-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Bilbao flights.
Search Deals
From Colorado to Bilbao
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($370 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Bilbao 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 2,558,603 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Colorado to Bilbao that are best for you.

Fly from

Colorado

Fly to

Bilbao

Route

Depart

Return

Price

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 11/18

3:40 pm-6:35 pm

2 stops18h 55m

Bilbao

Sat 11/22

6:15 pm-6:05 pm

2 stops31h 50m

$614

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Mon 11/24

3:40 pm-10:35 pm

2 stops22h 55m

Bilbao

Tue 12/9

7:45 am-6:05 pm

2 stops18h 20m

$625

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Thu 12/4

8:20 pm-9:55 pm

1 stop17h 35m

Bilbao

Thu 12/11

6:45 am-4:40 pm

2 stops17h 55m

$774

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Mon 11/24

4:05 pm-11:05 pm

2 stops23h 00m

Bilbao

Tue 12/9

7:45 am-4:00 pm

1 stop16h 15m

$805

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Mon 11/24

11:15 am-12:50 pm

2 stops17h 35m

Bilbao

Tue 12/9

6:45 am-4:40 pm

2 stops17h 55m

$807

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Fri 12/5

11:15 am-12:00 pm

2 stops16h 45m

Bilbao

Sun 12/14

12:45 pm-10:23 am

2 stops29h 38m

$814

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Fri 12/5

4:20 pm-11:20 pm

1 stop23h 00m

Bilbao

Sun 12/14

6:45 am-4:00 pm

1 stop17h 15m

$821

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Sun 1/4

5:45 pm-10:50 am

2 stops33h 05m

$687

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Sun 1/4

8:20 pm-6:05 pm

1 stop13h 45m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Best time to book a flight from Colorado to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Colorado with our price prediction graph.
Estimated round-trip 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 Colorado to Bilbao

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

Currently, February is the cheapest month in which you can book a flight from Colorado to Bilbao (average of $530). Flying from Colorado to Bilbao in December is currently the most expensive (average of $1,244). 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 CO to BIO?

Find hourly flight availability from Colorado to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

When flying from Colorado to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 30% versus a flight in the evening.

Related info for your journey

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

  • What airport do you fly into for flights to Bilbao from Colorado?

    Located just 3.0 mi from the city center, Bilbao (BIO) is the airport most travelers will use when flying to Bilbao from Colorado.

  • How long is the flight from Colorado to Bilbao?

    There are many flights that can get you from Colorado to Bilbao in 17h 35m. Fly via United Airlines to get the fastest option. The distance from Colorado to Bilbao is about 4902 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colorado to Bilbao 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 Colorado to Bilbao?

    Currently, February is the cheapest month in which you can book a flight from Colorado to Bilbao (average of $530). Flying from Colorado to Bilbao in December is currently the most expensive (average of $1,244). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Bilbao flights
Newark to Bilbao flights
Boston to Bilbao flights
Hobby to Bilbao flights
Dallas/Fort Worth to Bilbao flights
Miami to Bilbao flights
Los Angeles to Bilbao flights
Seattle to Bilbao flights
San Francisco to Bilbao flights
LaGuardia to Bilbao flights
George Bush Intcntl to Bilbao flights
John F Kennedy Intl to San Sebastian flights
Los Angeles to San Sebastian flights
Atlanta to Bilbao flights
Philadelphia to Bilbao flights
Omaha to Bilbao flights
Ontario to San Sebastian flights
Dulles Intl to Bilbao flights
Miami to San Sebastian flights
Denver to Bilbao flights
O'Hare Intl to Bilbao flights
O'Hare Intl to San Sebastian flights
Baltimore to Bilbao flights
Love Field to Bilbao flights
Reagan-National to Bilbao flights
Fort Lauderdale to Bilbao flights
Indianapolis to Bilbao flights
Salt Lake City to Bilbao flights
Denver to San Sebastian flights
Newark to San Sebastian flights
Sacramento to Bilbao flights
Minneapolis to Bilbao flights
Charlotte to Bilbao flights
Cincinnati to Bilbao flights
Raleigh to Bilbao flights
San Jose to Bilbao flights
LaGuardia to San Sebastian flights
Orlando to Bilbao flights
San Diego to Bilbao flights
Boise to Bilbao flights
Ontario to Bilbao flights
Santa Ana to San Sebastian flights
Dayton to Bilbao flights
Portland to Bilbao flights
Sky Harbor Intl to Bilbao flights
Austin to Bilbao flights
Detroit to Bilbao flights
Charlotte to San Sebastian flights
Fort Lauderdale to San Sebastian flights

Top 2 airlines flying from Colorado to Bilbao

Discover the top 2 airlines that operate flights from Colorado to Bilbao. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$530Average$855FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$686Average$1,001FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.