$144 Cheap Flights from Denver (DEN) to Moline (MLI)

View $144 flight on Thu, Nov 20, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Denver to Moline (DEN-MLI)

Prices were available within the past 7 days and start at $144 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 19 - Thu, Nov 27
DEN
Denver
MLI
Moline
$209 Roundtrip, found 15 hours ago
$209
Roundtrip
found 15 hours ago
Select United flight, departing Wed, Nov 19 from Denver to Moline, returning Thu, Nov 27, priced at $209 found 15 hours ago
United
Wed, Nov 19 - Mon, Nov 24
DEN
Denver
MLI
Moline
$219 Roundtrip, found 15 hours ago
$219
Roundtrip
found 15 hours ago
Select United flight, departing Wed, Nov 19 from Denver to Moline, returning Mon, Nov 24, priced at $219 found 15 hours ago
American Airlines
Sat, Nov 8 - Mon, Nov 10
DEN
Denver
MLI
Moline
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Nov 8 from Denver to Moline, returning Mon, Nov 10, priced at $229 found 1 hour ago
Delta
Sat, Nov 8 - Mon, Nov 10
DEN
Denver
MLI
Moline
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 8 from Denver to Moline, returning Mon, Nov 10, priced at $229 found 1 hour ago
United
Tue, Oct 14 - Tue, Oct 21
DEN
Denver
MLI
Moline
$229 Roundtrip, found 12 hours ago
$229
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Oct 14 from Denver to Moline, returning Tue, Oct 21, priced at $229 found 12 hours ago
Delta
Tue, Nov 18 - Sat, Nov 22
DEN
Denver
MLI
Moline
$239 Roundtrip, found 15 hours ago
$239
Roundtrip
found 15 hours ago
Select Delta flight, departing Tue, Nov 18 from Denver to Moline, returning Sat, Nov 22, priced at $239 found 15 hours ago
United
Tue, Nov 18 - Thu, Nov 27
DEN
Denver
MLI
Moline
$239 Roundtrip, found 15 hours ago
$239
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Nov 18 from Denver to Moline, returning Thu, Nov 27, priced at $239 found 15 hours ago
American Airlines
Wed, Oct 22 - Wed, Oct 29
DEN
Denver
MLI
Moline
$249 Roundtrip, found 6 days ago
$249
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Oct 22 from Denver to Moline, returning Wed, Oct 29, priced at $249 found 6 days ago
United
Wed, Nov 19 - Mon, Nov 24
DEN
Denver
MLI
Moline
$249 Roundtrip, found 15 hours ago
$249
Roundtrip
found 15 hours ago
Select United flight, departing Wed, Nov 19 from Denver to Moline, returning Mon, Nov 24, priced at $249 found 15 hours ago
American Airlines
Sat, Nov 8 - Mon, Nov 10
DEN
Denver
MLI
Moline
$259 Roundtrip, found 1 hour ago
$259
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Nov 8 from Denver to Moline, returning Mon, Nov 10, priced at $259 found 1 hour ago

Find the cheapest month to fly from Denver (DEN) to Moline (MLI)

February is typically the cheapest month to fly

From $208 - $757 per traveler.

Alternative airports near Moline

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

Select flight to Quad City Intl. MLI. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $219
MLI
Quad City Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $219
Flights from Denver (DEN) to Moline (MLI)
Origin airport
Denver Intl.
Destination airport
Quad City Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$209
Distance
749 mi
Average flight time
3 hours 5 mins

Denver to Moline Flights

The cheapest times to fly from Denver to Moline

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

 

The best time to book a flight from Denver to Moline

Sunday is one of the best days to book for cheap flights from Denver to Moline: 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 Denver to Moline

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 Denver to Moline in 2025. You can also book with separate airlines for your outbound and return journeys, from $144 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 Denver to Moline 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 Denver to Moline 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 Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI) cost?
Grab a cheap one-way flight from $144 or cheap return flight from $209 from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI) 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 Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
November is the most affordable month to fly from DEN to MLI. Planning your trip for the off-season is often the key to finding better deals on flights.
Which airlines fly direct from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
You can fly directly from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI) on a United Airlines flight.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
To find the cheapest airline that'll fly you from DEN to MLI, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
On average, just 1 nonstop flight departs daily from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI). Want additional options? Use our filters to discover flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
Flights between DEN and MLI tend to be busiest at 5 PM. If you're after a more relaxed atmosphere and possibly cheaper prices, look for a departure outside the usual busy windows.
What day of the week has the most flights from DEN to MLI?
Travel on a Sunday if you're searching for the largest selection of flights from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI).
What is the earliest flight from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
Denver Intl. Airport (DEN)'s first flight to Quad City Intl. Airport (MLI) departs at approximately 5:25PM UTC-7. With a total flight time of 2h 17m, you'll land at around 8:42PM UTC-6.
How long does it take to fly from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
Flights from DEN to MLI have an average travel time of 2 hours and 17 minutes. The total distance between the two airports is 750 mi.
What is the best time to fly from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
Choose a flight from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Moline from Denver Intl. Airport (DEN)?
Quad City Intl. Airport (MLI) is the only airport in Moline with direct flights from Denver Intl. Airport (DEN). Explore the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI) last-minute?
Booking your ticket from DEN to MLI just before your getaway is typically more expensive. However, if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a DEN to MLI flight and hotel package?
You'll typically save money by booking a DEN to MLI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your ideal accommodations and flights, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Quad City Intl. Airport (MLI)?
If you reserved your DEN to MLI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Explore a world of travel with Expedia

*Available to One Key members.