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Bilbao

$256+ Cheap flights from Colorado to Bilbao (BIO)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BIO
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Colorado to Bilbao

Best flights from Colorado to Bilbao
Discover carefully curated flight deals from Colorado to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This Mytrip deal was found by Cheapflights users on 12/21. 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.
Wed 2/411:15 amDEN - BIO
2 stops20h 55mMultiple Airlines
Wed 2/1111:35 amBIO - DEN
1 stop35h 00mMultiple Airlines
Deal found 12/21$562
This Trip.com deal was found by Cheapflights users on 12/21. 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.
Wed 2/44:20 pmDEN - BIO
1 stop17h 45mLufthansa
Wed 2/1111:35 amBIO - DEN
1 stop35h 00mLufthansa
Deal found 12/21$599
This United Airlines deal was found by Cheapflights users on 12/20. 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 1/294:20 pmDEN - BIO
1 stop21h 35mUnited Airlines
Mon 2/211:35 amBIO - DEN
1 stop35h 00mUnited Airlines
Deal found 12/20$630
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Tue 2/177:45 amDEN - BIO
2 stops30h 10mUnited Airlines
Sun 2/227:25 amBIO - DEN
2 stops34h 58mUnited Airlines
Deal found 12/20$630
This FlightHub deal was found by Cheapflights users on 12/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:45 pmDEN - BIO
1 stop21h 35mLufthansa
Sun 2/226:45 amBIO - DEN
2 stops23h 20mLufthansa
Deal found 12/20$630
This FlightHub deal was found by Cheapflights users on 12/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1811:15 amDEN - BIO
2 stops22h 50mMultiple Airlines
Sat 1/2411:35 amBIO - DEN
2 stops61h 05mMultiple Airlines
Deal found 12/20$632
This Cheapflightsfares deal was found by Cheapflights users on 12/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:20 pmDEN - BIO
1 stop13h 45mLufthansa
Sat 3/76:45 amBIO - DEN
1 stop17h 15mLufthansa
Deal found 12/22$633

Find flight deals from Colorado to Bilbao

Keep the following information in mind while searching for Colorado to Bilbao flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$562
(Mytrip)

One-way from

$256
(Finnair)

Popular in

May

Cheapest in

February

Average price

$1,380
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
One-way flight from Colorado to Bilbao
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($321 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 23, 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

Wed 2/4

11:15 am-4:10 pm

2 stops20h 55m

Bilbao

Wed 2/11

11:35 am-2:35 pm

1 stop35h 00m

$562

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Wed 2/4

4:20 pm-6:05 pm

1 stop17h 45m

Bilbao

Wed 2/11

11:35 am-2:35 pm

1 stop35h 00m

$599

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Thu 1/29

4:20 pm-9:55 pm

1 stop21h 35m

Bilbao

Mon 2/2

11:35 am-2:35 pm

1 stop35h 00m

$630

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/17

7:45 am-9:55 pm

2 stops30h 10m

Bilbao

Sun 2/22

7:25 am-10:23 am

2 stops34h 58m

$630

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/17

5:45 pm-11:20 pm

1 stop21h 35m

Bilbao

Sun 2/22

6:45 am-10:05 pm

2 stops23h 20m

$630

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Sun 1/18

11:15 am-6:05 pm

2 stops22h 50m

Bilbao

Sat 1/24

11:35 am-4:40 pm

2 stops61h 05m

$632

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Thu 2/19

8:20 pm-6:05 pm

1 stop13h 45m

Bilbao

Sat 3/7

6:45 am-4:00 pm

1 stop17h 15m

$633

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Wed 5/6

10:38 am-11:15 pm

2 stops28h 37m

$256

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Wed 5/6

7:55 pm-5:30 pm

1 stop13h 35m

$331

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 1/6

3:40 pm-10:35 pm

2 stops22h 55m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 14 results
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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 June is currently the most expensive (average of $1,163). 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 December 23, 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 45m. Fly via Lufthansa or United Airlines to get the fastest option. The distance from Colorado to Bilbao is about 4902 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 June is currently the most expensive (average of $1,163). 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

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Alternative routes for Colorado to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$530Average$885FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$686Average$942FlexibilityNo cancel feeOn-time69%

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