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$508+ 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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BIO
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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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 septiembre 15, 2025.

Round-trip from

$554
(Finnair)

One-way from

$508
(Air France)

Popular in

June

Cheapest in

March

Average price

$868
From Colorado to Bilbao
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One-way flight from Colorado to Bilbao
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Highest demand for flights based on searches. 25% potential increase in price ($340 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 septiembre 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/14. 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.
vie. 11/283:40 pmDEN - BIO
2 stops18h 55mMultiple Airlines
lun. 12/87:45 amBIO - DEN
2 stops18h 20mMultiple Airlines
Deal found 9/14$584
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mié. 11/58:20 pmDEN - BIO
1 stop18h 45mUnited Airlines
jue. 12/46:45 amBIO - DEN
1 stop14h 55mUnited Airlines
Deal found 9/14$591
This Trip.com deal was found by Cheapflights users on 9/14. 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.
vie. 11/283:40 pmDEN - BIO
2 stops18h 55mMultiple Airlines
sáb. 12/61:50 pmBIO - DEN
2 stops36h 15mMultiple Airlines
Deal found 9/14$629
This Lufthansa deal was found by Cheapflights users on 9/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/284:20 pmDEN - BIO
1 stop23h 00mLufthansa
lun. 12/85:35 pmBIO - DEN
1 stop30h 25mLufthansa
Deal found 9/14$661
This Orbitz deal was found by Cheapflights users on 9/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/107:48 pmDEN - BIO
2 stops33h 32mMultiple Airlines
lun. 10/207:10 pmBIO - DEN
2 stops30h 08mMultiple Airlines
Deal found 9/14$665
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/105:51 pmDEN - BIO
2 stops35h 29mLufthansa
lun. 10/207:10 pmBIO - DEN
2 stops28h 53mLufthansa
Deal found 9/14$685
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/35:35 pmDEN - BIO
2 stops16h 50mLufthansa
vie. 10/107:15 amBIO - DEN
1 stop14h 30mLufthansa
Deal found 9/15$687
This United Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 11/288:20 pmDEN - BIO
1 stop19h 00mUnited Airlines
sáb. 12/612:50 pmBIO - DEN
2 stops35h 50mUnited Airlines
Deal found 9/14$698

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 septiembre 15, 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

mié. 2/4

12:55 pm-11:15 pm

2 stops26h 20m

Bilbao

mié. 2/11

6:45 am-6:02 pm

2 stops19h 17m

$554

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

vie. 11/28

3:40 pm-6:35 pm

2 stops18h 55m

Bilbao

lun. 12/8

7:45 am-6:05 pm

2 stops18h 20m

$584

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

mié. 11/5

8:20 pm-11:05 pm

1 stop18h 45m

Bilbao

jue. 12/4

6:45 am-4:00 pm

1 stop17h 15m

$591

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

mié. 2/4

4:20 pm-6:05 pm

1 stop17h 45m

Bilbao

mié. 2/11

11:35 am-2:35 pm

1 stop35h 00m

$605

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

vie. 11/28

3:40 pm-6:35 pm

2 stops18h 55m

Bilbao

sáb. 12/6

1:50 pm-6:05 pm

2 stops36h 15m

$629

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

vie. 11/28

4:20 pm-11:20 pm

1 stop23h 00m

Bilbao

lun. 12/8

5:35 pm-4:00 pm

1 stop30h 25m

$661

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

dom. 1/4

12:00 pm-11:30 am

2 stops15h 30m

$508

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

dom. 1/4

5:45 pm-4:40 pm

1 stop14h 55m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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 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 septiembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Bilbao as you normally would.

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 18h 45m. 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, January is the cheapest month in which you can book a flight from Colorado to Bilbao (average of $541). Flying from Colorado to Bilbao in June is currently the most expensive (average of $1,136). 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$686Average$965FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$714Average$899FlexibilityNo cancel feeOn-time76%

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