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$184 Cheap Flights from Moline (MLI) to Denver (DEN)

View $184 flight on Wed, Nov 25, 2026Opens in a new window

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

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Cheap Flights from Moline to Denver (MLI-DEN)

Prices were available within the past 7 days and start at $184 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Sep 6 - Sat, Sep 12
MLI
Moline
DEN
Denver
$269 Roundtrip, found 6 hours ago
$269
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Sep 6 from Moline to Denver, returning Sat, Sep 12, priced at $269 found 6 hours ago
United
Sat, Nov 7 - Sat, Nov 14
MLI
Moline
DEN
Denver
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Nov 7 from Moline to Denver, returning Sat, Nov 14, priced at $279 found 4 hours ago
American Airlines
Sat, Aug 15 - Tue, Aug 18
MLI
Moline
DEN
Denver
$289 Roundtrip, just found
$289
Roundtrip
just found
Select American Airlines flight, departing Sat, Aug 15 from Moline to Denver, returning Tue, Aug 18, priced at $289 just found
Delta
Sat, Aug 15 - Tue, Aug 18
MLI
Moline
DEN
Denver
$289 Roundtrip, just found
$289
Roundtrip
just found
Select Delta flight, departing Sat, Aug 15 from Moline to Denver, returning Tue, Aug 18, priced at $289 just found
United
Tue, Aug 25 - Sat, Aug 29
MLI
Moline
DEN
Denver
$289 Roundtrip, found 7 hours ago
$289
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Aug 25 from Moline to Denver, returning Sat, Aug 29, priced at $289 found 7 hours ago
United
Thu, Dec 3 - Mon, Dec 7
MLI
Moline
DEN
Denver
$292 Roundtrip, found 2 hours ago
$292
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 3 from Moline to Denver, returning Mon, Dec 7, priced at $292 found 2 hours ago
United
Wed, Aug 19 - Thu, Aug 27
MLI
Moline
DEN
Denver
$296 Roundtrip, found 3 days ago
$296
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 19 from Moline to Denver, returning Thu, Aug 27, priced at $296 found 3 days ago
United
Sun, Sep 6 - Sat, Sep 12
MLI
Moline
DEN
Denver
$298 Roundtrip, found 6 hours ago
$298
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Sep 6 from Moline to Denver, returning Sat, Sep 12, priced at $298 found 6 hours ago
United
Tue, Aug 25 - Sat, Aug 29
MLI
Moline
DEN
Denver
$299 Roundtrip, found 7 hours ago
$299
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Aug 25 from Moline to Denver, returning Sat, Aug 29, priced at $299 found 7 hours ago
United
Thu, Aug 13 - Mon, Aug 17
MLI
Moline
DEN
Denver
$300 Roundtrip, found 1 day ago
$300
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 13 from Moline to Denver, returning Mon, Aug 17, priced at $300 found 1 day 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 $309
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $309

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

April is typically the cheapest month to fly

From $209 - $457 per traveler.

What you need to know for your flight from Quad City Intl. to Denver Intl.

Moline (MLI) to Denver (DEN) at a glance

Explore a range of airlines offering flights from Moline (MLI) to Denver (DEN) on this domestic short-haul route. Compare options to find the best itinerary that aligns with your budget and schedule as you prepare to discover Denver's iconic attractions and vibrant neighborhoods. Get all the essential details for your journey from Quad City International Airport to Denver International Airport.

  • Fastest flight duration: around 2h 45m non-stop
  • Route distance: roughly 800 miles (1,290 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $105–$435, depending on seasonality and how far ahead you book

Flights from Quad City International Airport (MLI) to Denver International Airport (DEN)

According to recent traveler bookings, the most popular airlines for flights from Moline to Denver typically feature both non-stop and one-stop options. Layovers are commonly through O'Hare International Airport (ORD), with an average layover of about 1 hour and 30 minutes; Dallas-Fort Worth International Airport (DFW), around 1 hour and 15 minutes; and Charlotte-Douglas International Airport (CLT), also about 1 hour and 15 minutes. This variety allows you to customize your journey based on price, total travel time, and cabin class to secure the ideal itinerary.

  • United: This full-service airline provides both non-stop and one-stop flights, capturing about 81% of departures on this route. One-way ticket prices generally fall between $105 and $465, with a typical non-stop flight duration of 2 hours and 45 minutes.
  • American Airlines: As another full-service option, American Airlines offers one-stop flights that make up around 18% of the departures here. Passengers can expect one-way fares ranging from $105 to $390, with a flight time of 4 hours and an overall journey time of approximately 5 hours and 45 minutes, including layovers.

Travelers can enhance their journey from Moline to Denver by upgrading to first-class service, available through United Airlines on this route.

Best time to fly from Moline (MLI) to Denver (DEN)

The most popular months for travelers flying from Moline to Denver are January, March, and April, when peak temperatures in Denver reach up to 45.3°F in April. If you prefer quieter travel, consider February, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 28.6°F. For better deals, April usually offers the lowest average one-way fare around $193. Flight availability peaks in November, with approximately 11 flights per week, making it easier to find convenient departure times. January and July have the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: April usually offers good deals with average one-way fare around $193, roughly 14% cheaper than the yearly average.
  • More budget-friendly months to fly: November, August, and January typically offer average one-way fares roughly ranging from $194 to $205.
  • Most flight options: November has the highest number of flights from Moline to Denver, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January28.4°F (-2.0°C)Moderately High7$205
February28.6°F (-1.9°C)Moderately Low8$248
March38.5°F (3.6°C)Moderately High8$224
April45.3°F (7.4°C)Moderately High8$193
May54.0°F (12.2°C)Average9$207
June66.9°F (19.4°C)Moderately Low9$282
July72.1°F (22.3°C)Average7$239
August71.2°F (21.8°C)Average9$200
September65.1°F (18.4°C)Average8$229
October50.2°F (10.1°C)Average9$225
November38.5°F (3.6°C)Average11$194
December28.9°F (-1.7°C)Moderately Low9$263

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Moline (MLI) to Denver (DEN)

  • Moline to Colorado Springs (MLI-COS): Colorado Springs Airport (COS) lies approximately 73 miles from Denver International Airport (DEN). One-way economy ticket prices for this journey generally fall between $135 and $400, influenced by the time of year and when you make your booking. Typically, this route features one-stop flights, with common layover points at O'Hare International Airport (ORD) and Denver International Airport (DEN). Major airlines servicing this route include United and American Airlines.

How to find the best prices for flights from Moline (MLI) to Denver (DEN)

Getting some of the best deals on flights from Moline to Denver is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Morning departures between 5 AM and 12 PM tend to offer lower prices and are also the most popular. Additionally, flying on Thursday usually results in cheaper rates, although Friday remains the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Denver International Airport from Quad City International Airport

Denver welcomes travelers from Moline with a range of transport options based on price, convenience, and proximity. Here's how to reach Denver efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Denver, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Denver International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Denver International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Denver International Airport, Jeppesen Terminal Station, a metro station, is conveniently located just 0.1 miles away on foot, providing easy access to public transportation options into the city.

Frequently asked questions

How much does a flight from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from $184 and cheap return flights from $269 Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) with Expedia. One-way flights usually range from $222 to $684, and return flights typically cost between $303 and $1399. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
The cheapest month to fly from MLI to DEN is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
United offers around 7 weekly direct flights from MLI to DEN.
What is the cheapest airline that flies from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
United is one of the cheapest airlines offering nonstop flights from Moline (MLI) to Denver (DEN), with round-trip tickets starting from around $209. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Moline, IL (MLI) to Denver, CO (DEN) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United offers the most daily flights from Moline to Denver, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
You can find approximately 1 nonstop flights per day from Quad City Intl. (MLI) to Denver Intl. (DEN). For more options, look at flights that include layovers.
What is the earliest flight from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Moline, IL (Quad City International Airport) to Denver, CO (Denver International Airport) typically departs at around 5:00 AM, operated by American Airlines. This is a seasonal service active in July, allowing you to start your day early and maximize your time in Denver. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Moline, IL (MLI) to Denver, CO (DEN) are from 6am to 9am. About 38% of passengers prefer this time window. Many major carriers, including American Airlines and United Airlines, offer flights during this window. This timing is favored as it allows travelers to maximize their time in Denver.
How long does it take to fly from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
Direct flights from MLI to DEN usually take about 2 hours 50 minutes, traveling roughly 750 miles. If you opt for a connecting flight, expect to add around 4 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
You can fly first class between MLI and DEN. First class cabins are available on:

  • American Airlines
  • United Airlines
  • Delta Air Lines

How much is a business class flight from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
A direct, return business class ticket from Moline (MLI) to Denver (DEN) typically costs between $915 - $1,337. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Quad City Intl. (MLI)?
From Quad City Intl. (MLI), you can fly into Denver Intl. (DEN) to reach Denver. Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Dallas-Fort Worth Intl. (DFW) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) Denver Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive 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 Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.)?
If you booked your Moline, IL (MLI-Quad City Intl.) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Quad City Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$269
Distance
749 mi
Average flight time
2 hours 30 mins

Book with confidence

Moline to Denver Flights

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

 

The best time to book a flight from Moline to Denver

Sunday is one of the best days to book for cheap flights from Moline 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 Moline 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 Moline to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $184 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 Moline 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 Moline 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.

 

Moline to Denver Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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