$126 Cheap Flights from Harlingen (HRL) to Moline (MLI)

View $126 flight on Tue, Sep 30, 2025Opens in a new window

Popular airlines from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI)

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Cheap Flights from Harlingen to Moline (HRL-MLI)

Prices were available within the past 7 days and start at $126 for one-way flights and $255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 24 - Mon, Sep 29
HRL
Harlingen
MLI
Moline
$255 Roundtrip, found 3 days ago
$255
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 24 from Harlingen to Moline, returning Mon, Sep 29, priced at $255 found 3 days ago
American Airlines
Thu, Sep 11 - Tue, Sep 16
HRL
Harlingen
MLI
Moline
$270 Roundtrip, found 6 days ago
$270
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Sep 11 from Harlingen to Moline, returning Tue, Sep 16, priced at $270 found 6 days ago
American Airlines
Fri, Sep 5 - Wed, Sep 17
HRL
Harlingen
MLI
Moline
$305 Roundtrip, found 6 days ago
$305
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Sep 5 from Harlingen to Moline, returning Wed, Sep 17, priced at $305 found 6 days ago
American Airlines
Fri, Sep 5 - Sun, Sep 21
HRL
Harlingen
MLI
Moline
$309 Roundtrip, found 6 days ago
$309
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Sep 5 from Harlingen to Moline, returning Sun, Sep 21, priced at $309 found 6 days ago
American Airlines
Tue, Sep 23 - Sat, Sep 27
HRL
Harlingen
MLI
Moline
$331 Roundtrip, found 3 days ago
$331
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 23 from Harlingen to Moline, returning Sat, Sep 27, priced at $331 found 3 days ago
American Airlines
Sun, Sep 21 - Sat, Sep 27
HRL
Harlingen
MLI
Moline
$335 Roundtrip, found 3 days ago
$335
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Sep 21 from Harlingen to Moline, returning Sat, Sep 27, priced at $335 found 3 days ago
American Airlines
Tue, Sep 23 - Tue, Sep 30
HRL
Harlingen
MLI
Moline
$336 Roundtrip, found 3 days ago
$336
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 23 from Harlingen to Moline, returning Tue, Sep 30, priced at $336 found 3 days ago
American Airlines
Sun, Sep 21 - Tue, Sep 30
HRL
Harlingen
MLI
Moline
$340 Roundtrip, found 3 days ago
$340
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Sep 21 from Harlingen to Moline, returning Tue, Sep 30, priced at $340 found 3 days ago
American Airlines
Tue, Sep 9 - Sat, Sep 13
HRL
Harlingen
MLI
Moline
$350 Roundtrip, found 6 days ago
$350
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Sep 9 from Harlingen to Moline, returning Sat, Sep 13, priced at $350 found 6 days ago
United
Wed, Sep 24 - Sat, Sep 27
HRL
Harlingen
MLI
Moline
$375 Roundtrip, found 3 days ago
$375
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 24 from Harlingen to Moline, returning Sat, Sep 27, priced at $375 found 3 days ago

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 $544
MLI
Quad City Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $544
Flights from Harlingen (HRL) to Moline (MLI)
Origin airport
Valley Intl.
Destination airport
Quad City Intl.
Airlines serving
American Airlines, United
Roundtrip price
$254
Distance
1128 mi

Harlingen to Moline Flights

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

 

The best time to book a flight from Harlingen to Moline

Sunday is one of the best days to book for cheap flights from Harlingen 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 Harlingen 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 Harlingen to Moline in 2025. You can also book with separate airlines for your outbound and return journeys, from $126 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 Harlingen 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 Harlingen 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 Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI) cost?
Secure a cheap one-way flight from $126 or cheap return flight from $255 from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI)?
The cheapest month to fly from HRL to MLI is September, when demand is low. Off-peak season is often when better flight deals are available between these airports.
What is the cheapest airline that flies from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest HRL to MLI flight.
How many flights per day from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI)?
Nonstop flights from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HRL to MLI?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI)?
To avoid possible delays on the Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI) route, travel before 3 PM. Departures after this hour are 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 Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI) last-minute?
Waiting until right before your break to book your flight from HRL to MLI often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Be flexible with your travel plans to maximize your chances of landing a bargain.
Is it cheaper to book a HRL to MLI flight and hotel package?
Compared with arranging hotels and flights separately, booking a HRL to MLI flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place takes the hassle out of travel planning. Just secure your flights and choose from our wide range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Valley Intl. Airport (HRL) to Quad City Intl. Airport (MLI)?
It's usually possible to reschedule or cancel your HRL to MLI flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.