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Bilbao

$433+ 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 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BIO
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This Gotogate deal was found by Cheapflights users on 1/25. 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.
Tue 2/2411:15 am
DEN
-
BIO
2 stops17h 35m
Multiple Airlines
Tue 3/36:45 am
BIO
-
DEN
1 stop17h 15m
Multiple Airlines
Deal found 1/25$542
This Cheapflightsfares deal was found by Cheapflights users on 1/25. 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.
Tue 2/244:15 pm
DEN
-
BIO
2 stops21h 40m
Lufthansa
Tue 3/36:45 am
BIO
-
DEN
1 stop17h 15m
Lufthansa
Deal found 1/25$548
This Booking.com deal was found by Cheapflights users on 1/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:15 am
DEN
-
BIO
2 stops17h 35m
Multiple Airlines
Tue 3/106:45 am
BIO
-
DEN
1 stop17h 15m
Multiple Airlines
Deal found 1/24$551
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Mon 2/238:20 pm
DEN
-
BIO
1 stop18h 45m
United Airlines
Tue 3/106:45 am
BIO
-
DEN
1 stop17h 15m
United Airlines
Deal found 1/24$571
This Delta deal was found by Cheapflights users on 1/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:10 am
DEN
-
BIO
2 stops27h 10m
Delta
Tue 3/106:50 am
BIO
-
DEN
2 stops20h 30m
Delta
Deal found 1/24$575
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:30 am
DEN
-
BIO
2 stops19h 20m
Delta
Wed 10/710:30 am
BIO
-
DEN
1 stop13h 10m
Delta
Deal found 1/27$578
This United Airlines deal was found by Cheapflights users on 1/25. 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 10/15:40 pm
DEN
-
BIO
1 stop21h 30m
United Airlines
Fri 10/96:50 am
BIO
-
DEN
2 stops24h 28m
United Airlines
Deal found 1/25$581
This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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 9/174:15 pm
DEN
-
BIO
1 stop23h 10m
Lufthansa
Sun 9/277:15 am
BIO
-
DEN
1 stop14h 30m
Lufthansa
Deal found 1/26$582

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$542
(Gotogate)

One-way from

$433
(Cheapflightsfares)

Popular in

May

Cheapest in

February

Average price

$870
Provider with most accurate pricing for Denver Intl-Bilbao flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Bilbao flights.
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From Denver Intl to Bilbao
Search Deals
One-way flight from Denver Intl to Bilbao
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 27, 2026.
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

Tue 2/24

11:15 am-12:50 pm

2 stops17h 35m

Bilbao

Tue 3/3

6:45 am-4:00 pm

1 stop17h 15m

$542

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/24

5:45 pm-4:40 pm

1 stop14h 55m

Bilbao

Tue 3/3

6:45 am-4:00 pm

1 stop17h 15m

$555

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Mon 2/23

8:20 pm-11:05 pm

1 stop18h 45m

Bilbao

Tue 3/10

6:45 am-5:00 pm

1 stop17h 15m

$571

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Mon 2/23

6:10 am-5:20 pm

2 stops27h 10m

Bilbao

Tue 3/10

6:50 am-8:20 pm

2 stops20h 30m

$575

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/24

4:15 pm-9:55 pm

2 stops21h 40m

Bilbao

Sun 3/1

6:50 pm-4:00 pm

2 stops29h 10m

$624

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/24

11:15 am-12:50 pm

2 stops17h 35m

Bilbao

Sun 3/1

5:35 pm-4:00 pm

1 stop30h 25m

$625

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/24

5:45 pm-11:20 pm

1 stop21h 35m

Bilbao

Sun 3/1

6:45 am-7:25 pm

2 stops20h 40m

$641

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/17

5:45 pm-11:20 pm

1 stop21h 35m

Bilbao

Tue 2/24

6:45 am-4:00 pm

1 stop17h 15m

$648

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Tue 2/17

11:15 am-12:05 pm

2 stops16h 50m

Bilbao

Tue 2/24

6:45 am-4:00 pm

1 stop17h 15m

$654

DenverBilbao

DEN - BIO

DENBIO

Denver Intl

Thu 3/19

4:00 pm-6:05 pm

2 stops19h 05m

Bilbao

Tue 3/24

7:40 am-7:55 pm

1 stop19h 15m

$674

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 16 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 January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Bilbao flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 December is currently the most expensive (average of $1,104). 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.

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 January 27, 2026.
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
9,205 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,749 reviews
United Airlines
7.4
Good
9,205 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 14h 55m. Fly via Lufthansa, United Airlines, or Delta 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 42% 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 December is currently the most expensive (average of $1,104). 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

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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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$530Average$885FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$658Average$942FlexibilityNo cancel feeOn-time69%

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