$109 Cheap Flights from Chicago (ORD) to Dubuque (DBQ)

View $109 flight on Mon, Aug 4, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Dubuque, IA (DBQ-Dubuque Regional)

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Cheap Flights from Chicago to Dubuque (ORD-DBQ)

Prices were available within the past 7 days and start at $109 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Aug 8 - Sun, Aug 10
ORD
Chicago
DBQ
Dubuque
$218 Roundtrip, found 5 hours ago
$218
Roundtrip
found 5 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Aug 8 from Chicago to Dubuque, returning Sun, Aug 10, priced at $218 found 5 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Jul 25 - Fri, Aug 8
ORD
Chicago
DBQ
Dubuque
$238 Roundtrip, found 11 hours ago
$238
Roundtrip
found 11 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Jul 25 from Chicago to Dubuque, returning Fri, Aug 8, priced at $238 found 11 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Aug 15 - Mon, Sep 1
ORD
Chicago
DBQ
Dubuque
$258 Roundtrip, found 22 hours ago
$258
Roundtrip
found 22 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Aug 15 from Chicago to Dubuque, returning Mon, Sep 1, priced at $258 found 22 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Sat, Jul 19 - Fri, Jul 25
ORD
Chicago
DBQ
Dubuque
$278 Roundtrip, found 8 hours ago
$278
Roundtrip
found 8 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Sat, Jul 19 from Chicago to Dubuque, returning Fri, Jul 25, priced at $278 found 8 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Sat, Jul 19 - Sun, Jul 20
ORD
Chicago
DBQ
Dubuque
$298 Roundtrip, found 8 hours ago
$298
Roundtrip
found 8 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Sat, Jul 19 from Chicago to Dubuque, returning Sun, Jul 20, priced at $298 found 8 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Jul 17 - Fri, Jul 18
ORD
Chicago
DBQ
Dubuque
$318 Roundtrip, found 8 hours ago
$318
Roundtrip
found 8 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Jul 17 from Chicago to Dubuque, returning Fri, Jul 18, priced at $318 found 8 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Sat, Jul 19 - Mon, Jul 28
ORD
Chicago
DBQ
Dubuque
$338 Roundtrip, found 8 hours ago
$338
Roundtrip
found 8 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Sat, Jul 19 from Chicago to Dubuque, returning Mon, Jul 28, priced at $338 found 8 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Jul 17 - Mon, Jul 28
ORD
Chicago
DBQ
Dubuque
$358 Roundtrip, found 8 hours ago
$358
Roundtrip
found 8 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Jul 17 from Chicago to Dubuque, returning Mon, Jul 28, priced at $358 found 8 hours ago
0
Flights from Chicago (ORD) to Dubuque (DBQ)
Origin airport
O'Hare Intl.
Destination airport
Dubuque Regional
Airlines serving
KEY LIME AIR DBA DENVER AIR CONNECTION
Roundtrip price
$218
Distance
146 mi

Chicago to Dubuque Flights

The cheapest times to fly from Chicago to Dubuque

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 Chicago to Dubuque are during the month of August. You can find some of the cheapest flights from Chicago to Dubuque with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Dubuque

Sunday is one of the best days to book for cheap flights from Chicago to Dubuque: 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 Chicago to Dubuque

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 Chicago to Dubuque in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 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 Chicago to Dubuque 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 Chicago to Dubuque 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 O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ) cost?
You can find cheap return flights from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ) starting from $218. Grab a seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Key Lime DBA Denver Air Connection flight leaving ORD on July 31 2025 and touching down at DBQ. The price was last updated on July 9 2025 and has not changed since.
What is the cheapest month to fly from ORD to DBQ?
The cheapest flights from ORD to DBQ are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
Board a nonstop flight with Denver Air Connection and fly straight from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ).
What is the cheapest airline that flies from ORD to DBQ?
Fly from ORD to DBQ with Key Lime DBA Denver Air Connection. This airline currently offers the cheapest one-way ticket on this route, starting from $109. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on September 24 2025. Prices were last updated on July 9 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
On average, there is just 1 nonstop flight taking off from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ) every day. If this doesn't suit your schedule, consider flights with a layover. Just customize your search on Expedia to include one or two stops to find the next best option.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
Flights between ORD and DBQ are their busiest at 2 PM. For a quieter trip and potentially cheaper prices, choose a time outside the usual busy windows.
What day of the week has the most flights from ORD to DBQ?
Friday has the most flights from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ). Consider taking off on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
O'Hare Intl. Airport (ORD)'s first flight to Dubuque Regional Airport (DBQ) takes off at approximately 2:30PM UTC-6. With a total travel time of 55m, you'll land at around 3:25PM UTC-6.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
The average flight time from ORD to DBQ is 55 minutes, covering a distance of 150 mi.
What airline has the least delays from ORD to DBQ?
American Airlines has the strongest track record for on-time direct flights from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ), with an on-time rating of 90%. Use the Expedia App to see your flight schedule before you head off and get notified of any changes.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
To reach Dubuque Regional Airport (DBQ) on schedule, choose a flight that takes off from O'Hare Intl. Airport (ORD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
What airports do you fly into for Dubuque from O'Hare Intl. Airport (ORD)?
Dubuque Regional Airport (DBQ) is the only airport in Dubuque with direct flights from O'Hare Intl. Airport (ORD). Check out your options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ) last-minute?
Waiting until just before your departure to book your flight from ORD to DBQ generally means paying more. While you may find some last-minute offers, there's no guarantee. Keep your travel schedule open to boost your chances of getting a bargain.
Is it cheaper to book an ORD to DBQ flight and hotel package?
Compared with arranging hotels and flights separately, booking an ORD to DBQ flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place takes the hassle out of planning your trip. Just pick your flights and select from our wide range of stays, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Dubuque Regional Airport (DBQ)?
In most instances, you can modify or cancel your ORD to DBQ flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need more details, visit our Customer Service portal.

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