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Bilbao

$463+ Cheap flights from Denver (DEN) 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BIO
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Denver to Bilbao

Cheapest flights from Denver to Bilbao
Explore the most affordable flight options available from Denver to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This KAYAK deal was found by Cheapflights users on 12/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:20 pmDEN - BIO
1 stop36h 50mTurkish Airlines
Thu 1/295:10 pmBIO - DEN
1 stop32h 25mTurkish Airlines
Deal found 12/11$757
This KAYAK deal was found by Cheapflights users on 12/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:20 pmDEN - BIO
1 stop36h 50mTurkish Airlines
Fri 1/3012:00 pmBIO - DEN
1 stop37h 35mTurkish Airlines
Deal found 12/11$776
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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.
Sun 12/285:45 pmDEN - BIO
1 stop14h 55mLufthansa
Tue 1/2711:35 amBIO - DEN
2 stops18h 24mLufthansa
Deal found 12/11$813
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/318:20 pmDEN - BIO
1 stop13h 45mUnited Airlines
Fri 1/306:45 amBIO - DEN
1 stop14h 55mUnited Airlines
Deal found 12/11$841
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/314:20 pmDEN - BIO
1 stop17h 45mUnited Airlines
Thu 1/297:40 amBIO - DEN
1 stop14h 55mUnited Airlines
Deal found 12/11$842
This Air Canada deal was found by Cheapflights users on 12/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:15 amDEN - BIO
2 stops22h 50mAir Canada
Fri 1/306:45 amBIO - DEN
2 stops37h 52mAir Canada
Deal found 12/11$844
This Air Canada deal was found by Cheapflights users on 12/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 pmDEN - BIO
2 stops40h 35mAir Canada
Fri 1/306:45 amBIO - DEN
2 stops18h 59mAir Canada
Deal found 12/11$847
This Air Canada deal was found by Cheapflights users on 12/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:15 amDEN - BIO
2 stops22h 50mAir Canada
Wed 1/2811:35 amBIO - DEN
2 stops40h 20mAir Canada
Deal found 12/11$849
This Air Canada deal was found by Cheapflights users on 12/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:15 amDEN - BIO
2 stops22h 50mAir Canada
Thu 1/2912:50 pmBIO - DEN
2 stops35h 50mAir Canada
Deal found 12/11$850
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 12/285:45 pmDEN - BIO
1 stop14h 55mUnited Airlines
Fri 1/306:45 amBIO - DEN
1 stop14h 55mUnited Airlines
Deal found 12/11$852

Find flight deals from Denver to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$534
(Mytrip)

One-way from

$463
(Kiwi.com)

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 Denver Intl to Bilbao
Search Deals
One-way flight from Denver Intl to Bilbao
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($49 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 Denver 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 12, 2025.
Use the filters below to find and compare flights from Denver to Bilbao that are best for you.

Fly from

Denver

Fly to

Bilbao

Route

Depart

Return

Price

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Wed 3/11

5:20 pm-9:55 pm

1 stop21h 35m

Bilbao

Fri 3/20

6:45 am-11:40 pm

2 stops23h 55m

$681

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Thu 1/29

7:20 pm-11:00 am

1 stop31h 40m

Bilbao

Mon 2/2

12:00 pm-5:35 pm

1 stop37h 35m

$694

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Fri 2/6

11:15 am-12:00 pm

2 stops16h 45m

Bilbao

Thu 2/12

11:35 am-2:35 pm

1 stop35h 00m

$721

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Fri 2/6

4:20 pm-11:20 pm

1 stop23h 00m

Bilbao

Thu 2/12

12:50 pm-2:35 pm

2 stops33h 45m

$723

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 12/30

7:20 pm-4:10 pm

1 stop36h 50m

Bilbao

Wed 1/28

5:10 pm-5:35 pm

1 stop32h 25m

$776

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Fri 1/9

8:10 am-10:50 am

2 stops18h 40m

Bilbao

Thu 1/22

7:40 am-9:59 pm

2 stops22h 19m

$779

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Thu 1/29

11:49 am-9:55 pm

2 stops26h 06m

Bilbao

Mon 2/2

11:35 am-2:35 pm

1 stop35h 00m

$787

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Sat 3/21

10:30 pm-10:50 pm

3 stops41h 20m

$463

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Sat 3/21

9:20 pm-6:05 pm

1 stop13h 45m

$531

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Sun 1/4

6:00 am-4:10 pm

2 stops26h 10m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 11 results
1
2

Compare providers for flights from Denver to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Bilbao in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Bilbao flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Bilbao flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Bilbao flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Denver 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 Denver to Bilbao

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

Currently, February is the cheapest month in which you can book a flight from Denver to Bilbao (average of $530). Flying from Denver to Bilbao in May is currently the most expensive (average of $1,191). 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 DEN to BIO?

Find hourly flight availability from Denver 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 12, 2025.

One of the essential ways to save on airfare from Denver to Bilbao is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 30% on airfare.

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bilbao. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with United Airlines and Lufthansa from Denver to Bilbao by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Lufthansa
6.8
Okay
7,626 reviews
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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

  • How long is the flight from Denver to Bilbao?

    There are many flights that can get you from Denver to Bilbao in 21h 35m. Fly via United Airlines or Turkish Airlines to get the fastest option. Airlines will cover a distance of 4902 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Denver to Bilbao round-trip?

    Cheapflights users have booked flights from Denver to Bilbao round-trip from $530. Another airline that can offer you cheap pricing is United Airlines. These flights start at 43% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Denver to Bilbao (average of $530). Flying from Denver to Bilbao in May is currently the most expensive (average of $1,191). 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 Denver to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Denver to San Sebastian flights

Top 2 airlines flying from Denver to Bilbao

Discover the top 2 airlines that operate flights from Denver 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$530Average$885FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$686Average$942FlexibilityNo cancel feeOn-time69%

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