$217 Cheap Flights from Dubuque (DBQ) to Denver (DEN)

View $217 flight on Tue, Dec 16, 2025Opens in a new window

Popular airlines from Dubuque, IA (DBQ-Dubuque Regional) to Denver Intl. Airport (DEN)

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Cheap Flights from Dubuque to Denver (DBQ-DEN)

Prices were available within the past 7 days and start at $217 for one-way flights and $422 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KEY LIME AIR DBA DENVER AIR CONNECTION
Mon, Nov 3 - Wed, Nov 5
DBQ
Dubuque
DEN
Denver
$422 Roundtrip, found 2 days ago
$422
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Mon, Nov 3 from Dubuque to Denver, returning Wed, Nov 5, priced at $422 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Dec 16 - Thu, Dec 18
DBQ
Dubuque
DEN
Denver
$427 Roundtrip, found 19 hours ago
$427
Roundtrip
found 19 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Dec 16 from Dubuque to Denver, returning Thu, Dec 18, priced at $427 found 19 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Dec 9 - Fri, Dec 12
DBQ
Dubuque
DEN
Denver
$428 Roundtrip, found 3 days ago
$428
Roundtrip
found 3 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Dec 9 from Dubuque to Denver, returning Fri, Dec 12, priced at $428 found 3 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Oct 31 - Wed, Nov 5
DBQ
Dubuque
DEN
Denver
$431 Roundtrip, found 2 days ago
$431
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Oct 31 from Dubuque to Denver, returning Wed, Nov 5, priced at $431 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Oct 23 - Thu, Oct 30
DBQ
Dubuque
DEN
Denver
$432 Roundtrip, found 2 days ago
$432
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Oct 23 from Dubuque to Denver, returning Thu, Oct 30, priced at $432 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Oct 28 - Sat, Nov 1
DBQ
Dubuque
DEN
Denver
$438 Roundtrip, found 4 days ago
$438
Roundtrip
found 4 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Oct 28 from Dubuque to Denver, returning Sat, Nov 1, priced at $438 found 4 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Nov 7 - Wed, Nov 12
DBQ
Dubuque
DEN
Denver
$439 Roundtrip, found 6 days ago
$439
Roundtrip
found 6 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Nov 7 from Dubuque to Denver, returning Wed, Nov 12, priced at $439 found 6 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Oct 31 - Sat, Nov 15
DBQ
Dubuque
DEN
Denver
$440 Roundtrip, found 2 days ago
$440
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Oct 31 from Dubuque to Denver, returning Sat, Nov 15, priced at $440 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Oct 23 - Sat, Nov 1
DBQ
Dubuque
DEN
Denver
$441 Roundtrip, found 2 days ago
$441
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Oct 23 from Dubuque to Denver, returning Sat, Nov 1, priced at $441 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Mon, Nov 24 - Fri, Nov 28
DBQ
Dubuque
DEN
Denver
$442 Roundtrip, found 5 days ago
$442
Roundtrip
found 5 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Mon, Nov 24 from Dubuque to Denver, returning Fri, Nov 28, priced at $442 found 5 days ago

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $673
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $673
Flights from Dubuque (DBQ) to Denver (DEN)
Origin airport
Dubuque Regional
Destination airport
Denver Intl.
Roundtrip price
$422
Distance
747 mi

Dubuque to Denver Flights

The cheapest times to fly from Dubuque to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dubuque to Denver are during the month of November. You can find some of the cheapest flights from Dubuque to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dubuque to Denver

Sunday is one of the best days to book for cheap flights from Dubuque to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Dubuque to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dubuque to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $217 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dubuque to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dubuque to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN) cost?
Snag a cheap one-way flight from $217 or cheap return flight from $422 from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN)?
November is the least expensive month to fly from DBQ to DEN. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DBQ to DEN flight.
How many flights per day from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN)?
You'll need to catch a flight with a layover if you're traveling from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from DBQ to DEN?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN)?
Select a flight from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN) last-minute?
Waiting until just before your trip to book a ticket from DBQ to DEN generally means paying more. Although you may find some last-minute deals, there's no guarantee. Keep your travel schedule open for the best chance of scoring a bargain.
Is it cheaper to book a DBQ to DEN flight and hotel package?
Booking a DBQ to DEN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dubuque Regional Airport (DBQ) to Denver Intl. Airport (DEN)?
Typically, it's possible to reschedule or cancel your DBQ to DEN flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.