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Key Largo

$172+ Cheap flights from Moline (MLI) to Key Largo, FL

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — MIA
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Moline Quad-City to Key Largo are usually found in February or August, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Moline to Key Largo

Cheapest flights from Moline to Key Largo
Explore the most affordable flight options available from Moline to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Delta deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:08 pmMLI - MIA
1 stop6h 38mDelta
Thu 1/812:00 pmMIA - MLI
1 stop5h 26mDelta
Deal found 12/2$339
This United Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:50 amMLI - MIA
2 stops9h 53mUnited Airlines
Thu 1/812:18 pmMIA - MLI
1 stop5h 36mUnited Airlines
Deal found 12/2$344
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:00 amMLI - MIA
1 stop6h 10mUnited Airlines
Mon 12/227:15 amMIA - MLI
1 stop5h 58mUnited Airlines
Deal found 12/3$374
This United Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:30 amMLI - MIA
1 stop7h 40mUnited Airlines
Tue 1/61:45 pmMIA - MLI
2 stops8h 51mUnited Airlines
Deal found 12/2$399
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:31 pmMLI - MIA
1 stop7h 57mAmerican Airlines
Fri 12/195:14 pmMIA - MLI
1 stop7h 26mAmerican Airlines
Deal found 12/2$404
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:43 pmMLI - MIA
1 stop6h 04mAmerican Airlines
Sun 12/288:20 amMIA - MLI
1 stop6h 45mAmerican Airlines
Deal found 12/2$407
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:30 amMLI - MIA
1 stop7h 34mUnited Airlines
Wed 12/317:15 amMIA - MLI
1 stop5h 58mUnited Airlines
Deal found 12/3$419
This Delta deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:08 pmMLI - MIA
1 stop6h 38mDelta
Tue 1/66:20 pmMIA - MLI
1 stop5h 13mDelta
Deal found 12/2$424
This United Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/710:50 amMLI - MIA
2 stops12h 09mUnited Airlines
Fri 12/194:06 pmMIA - MLI
1 stop6h 15mUnited Airlines
Deal found 12/2$426

Find flight deals from Moline to Key Largo

Keep the following information in mind while searching for Moline to Key Largo flight deals. Data was last updated December 4, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$259
(American Airlines)

One-way from

$172
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$487
Provider with most accurate pricing for Moline Quad-City-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Moline Quad-City-Miami flights.
Search Deals
From Moline Quad-City to Key Largo
Search Deals
One-way flight from Moline Quad-City to Key Largo
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Moline to Key Largo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from Moline to Key Largo that are best for you.

Fly from

Moline

Fly to

Key Largo

Route

Depart

Return

Price

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Fri 1/9

5:11 pm-12:51 am

1 stop6h 40m

Miami

Tue 1/13

12:00 pm-4:26 pm

1 stop5h 26m

$269

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Fri 1/9

10:47 am-11:59 pm

2 stops12h 12m

Miami

Tue 1/13

9:00 am-3:09 pm

1 stop7h 09m

$274

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Sat 1/17

10:47 am-10:20 pm

2 stops10h 33m

Miami

Wed 1/21

9:05 am-4:54 pm

2 stops8h 49m

$306

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Sat 1/17

11:28 am-9:10 pm

2 stops8h 42m

Miami

Sun 1/25

5:15 am-10:30 am

1 stop6h 15m

$309

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Sun 1/11

3:45 pm-10:15 pm

1 stop5h 30m

Miami

Sat 1/17

11:17 am-9:36 pm

2 stops11h 19m

$309

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Sat 1/10

10:47 am-10:20 pm

2 stops10h 33m

Miami

Wed 1/14

12:18 pm-4:54 pm

1 stop5h 36m

$354

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Tue 1/13

10:47 am-8:29 pm

2 stops8h 42m

Miami

Sat 1/17

4:19 pm-9:36 pm

1 stop6h 17m

$354

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Tue 3/17

3:25 pm-10:24 pm

1 stop5h 59m

Miami

Wed 3/25

1:30 pm-9:59 pm

2 stops9h 29m

$354

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Sat 1/10

12:36 pm-12:07 am

2 stops34h 31m

$177

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Fri 1/30

5:51 pm-5:48 pm

3 stops46h 57m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 18 results
1
2

Best time to book a flight from Moline to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Moline with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Moline to Key Largo

How far ahead should I book a flight from Moline to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Moline to Key Largo. Price data was last updated on November 28, 2025.

To ensure you get the cheapest price possible for a flight from Moline to Key Largo, you should look to book at least 33 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Moline to Key Largo?

Currently, August is the cheapest month in which you can book a flight from Moline to Key Largo (average of $67). Flying from Moline to Key Largo in October is currently the most expensive (average of $264). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MLI to KE9?

Find hourly flight availability from Moline to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

One of the essential ways to save on airfare from Moline to Key Largo is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 73% on airfare.

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key Largo. Reviews last updated December 4, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Moline to Key Largo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
9,066 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
11,047 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from Moline to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Moline to Key Largo?

    Located just 4.0 mi from the city center, Moline Quad-City is the airport most travelers will use when flying to Key Largo from Moline. Booking flights from Quad-City (MLI) to Key Largo should be relatively easy as there are 0 daily outbound flights to Key Largo from 3 different airlines.

  • How long is the flight from Moline to Key Largo?

    A quick flight from Moline to Key Largo can take about 6h 40m. Delta provides one of the quickest options available for as low as $269. The distance from Moline to Key Largo is about 1228 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Moline to Key Largo that include hotel bookings?

    Yes. In addition to deals on Moline to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Moline to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Moline to Key Largo.

  • Can I find deals for business class flights from Moline to Key Largo?

    Yes. Cheapflights offers flight deals from Moline to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Moline to Key Largo?

    Currently, August is the cheapest month in which you can book a flight from Moline to Key Largo (average of $67). Flying from Moline to Key Largo in October is currently the most expensive (average of $264). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Moline to Key Largo

Discover the top 3 airlines that operate flights from Moline to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$452FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$430FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$470FlexibilityNo cancel feeOn-time69%

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