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Key Largo

$237+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — MIA
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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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 January 21, 2026.

This Delta deal was found by Cheapflights users on 1/19. 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 5/1911:00 am
MLI
-
MIA
1 stop6h 54m
Delta
Mon 6/16:00 am
MIA
-
MLI
1 stop5h 26m
Delta
Deal found 1/19$289
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/176:30 am
MLI
-
MIA
1 stop5h 43m
United Airlines
Tue 2/246:00 am
MIA
-
MLI
2 stops10h 17m
United Airlines
Deal found 1/20$294
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/176:30 am
MLI
-
MIA
2 stops8h 41m
United Airlines
Tue 3/246:00 am
MIA
-
MLI
2 stops9h 12m
United Airlines
Deal found 1/20$300
This Delta deal was found by Cheapflights users on 1/19. 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.
Thu 2/265:01 pm
MLI
-
MIA
1 stop6h 52m
Delta
Tue 3/103:33 pm
MIA
-
MLI
1 stop7h 57m
Delta
Deal found 1/19$314
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/510:47 am
MLI
-
MIA
2 stops10h 07m
United Airlines
Thu 2/122:15 pm
MIA
-
MLI
1 stop8h 12m
United Airlines
Deal found 1/20$319
This Delta deal was found by Cheapflights users on 1/19. 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 3/35:01 pm
MLI
-
MIA
2 stops16h 25m
Delta
Tue 3/103:33 pm
MIA
-
MLI
1 stop7h 57m
Delta
Deal found 1/19$337
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 3/185:15 pm
MLI
-
MIA
1 stop6h 37m
Delta
Wed 4/14:44 pm
MIA
-
MLI
1 stop6h 46m
Delta
Deal found 1/20$339
This Delta deal was found by Cheapflights users on 1/19. 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.
Fri 2/275:01 pm
MLI
-
MIA
1 stop4h 46m
Delta
Tue 3/104:44 pm
MIA
-
MLI
1 stop6h 46m
Delta
Deal found 1/19$344
This Delta deal was found by Cheapflights users on 1/19. 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 3/35:01 pm
MLI
-
MIA
2 stops16h 25m
Delta
Tue 3/173:33 pm
MIA
-
MLI
1 stop7h 57m
Delta
Deal found 1/19$362
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Thu 4/910:35 am
MLI
-
MIA
2 stops10h 53m
United Airlines
Tue 4/149:00 am
MIA
-
MLI
2 stops8h 59m
United Airlines
Deal found 1/19$364
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Wed 2/258:15 am
MLI
-
MIA
1 stop8h 14m
United Airlines
Fri 3/64:10 pm
MIA
-
MLI
1 stop7h 26m
United Airlines
Deal found 1/19$369

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$289
(Delta)

One-way from

$237
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$455
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. 8% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 21, 2026.
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

Tue 2/17

5:01 pm-12:53 am

1 stop6h 52m

Miami

Tue 2/24

4:46 pm-10:24 pm

1 stop6h 38m

$289

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Tue 3/17

5:15 pm-12:52 am

1 stop6h 37m

Miami

Tue 3/24

4:44 pm-10:30 pm

1 stop6h 46m

$289

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Tue 2/17

6:30 am-1:13 pm

1 stop5h 43m

Miami

Tue 2/24

6:00 am-3:17 pm

2 stops10h 17m

$294

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Tue 3/17

6:30 am-4:11 pm

2 stops8h 41m

Miami

Tue 3/24

6:00 am-2:12 pm

2 stops9h 12m

$300

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Wed 3/4

5:55 am-12:23 pm

1 stop5h 28m

Miami

Thu 3/12

6:27 pm-10:30 pm

1 stop5h 03m

$314

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Tue 3/3

5:01 pm-12:53 am

1 stop6h 52m

Miami

Thu 3/12

6:27 pm-10:30 pm

1 stop5h 03m

$314

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Fri 2/27

5:01 pm-10:47 pm

1 stop4h 46m

Miami

Thu 3/5

10:33 am-4:16 pm

1 stop6h 43m

$344

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Mon 3/9

5:15 pm-10:35 am

2 stops16h 20m

Miami

Tue 3/17

3:33 pm-10:30 pm

1 stop7h 57m

$362

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Sun 2/1

7:32 am-4:18 pm

1 stop7h 46m

Miami

Sat 2/7

8:35 am-3:27 pm

1 stop7h 52m

$374

MolineMiami

MLI - MIA

MLIMIA

Moline Quad-City

Fri 2/27

3:52 pm-10:20 pm

1 stop5h 28m

Miami

Wed 3/4

10:55 am-9:27 pm

2 stops11h 32m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 17 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 January 16, 2026.

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, April is the cheapest month in which you can book a flight from Moline to Key Largo (average of $62). Flying from Moline to Key Largo in September is currently the most expensive (average of $250). 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.

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 January 21, 2026.
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
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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
8,089 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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
9,191 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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
11,174 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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 5h 43m. Delta provides one of the quickest options available for as low as $294. 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, April is the cheapest month in which you can book a flight from Moline to Key Largo (average of $62). Flying from Moline to Key Largo in September is currently the most expensive (average of $250). 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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Alternative routes for Moline to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$226Average$454FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$476FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$456FlexibilityNo cancel feeOn-time71%

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