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Key Largo

$344+ Cheap flights from Fort Smith (FSM) to Key Largo, FL

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
FSM — MIA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Fort Smith to Key Largo

Keep the following information in mind while searching for Fort Smith to Key Largo flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$354
(American Airlines)

Popular in

March

Cheapest in

July

Average price

$734
Provider with most accurate pricing for Fort Smith-Miami flight deals.
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Provider most trusted by Cheapflights users for Fort Smith-Miami flights.
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From Fort Smith to Key Largo
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Highest demand for flights based on searches. 5% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Fort Smith to Key Largo

Cheapest flights from Fort Smith to Key Largo
Explore the most affordable flight options available from Fort Smith to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. 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 11/156:31 pmFSM - MIA
1 stop5h 05mAmerican Airlines
Tue 11/185:18 amMIA - FSM
1 stop5h 22mAmerican Airlines
Deal found 10/27$374
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/136:16 pmFSM - MIA
1 stop5h 04mAmerican Airlines
Mon 11/175:18 amMIA - FSM
1 stop5h 22mAmerican Airlines
Deal found 10/29$463
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 12/36:28 pmFSM - MIA
1 stop5h 15mAmerican Airlines
Fri 12/55:30 pmMIA - FSM
1 stop5h 58mAmerican Airlines
Deal found 10/30$561

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fort Smith 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 October 30, 2025.
Use the filters below to find and compare flights from Fort Smith to Key Largo that are best for you.

Fly from

Fort Smith

Fly to

Key Largo

Route

Depart

Return

Price

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Tue 4/7

6:07 am-12:43 pm

1 stop5h 36m

Miami

Tue 4/14

6:15 pm-11:39 pm

1 stop6h 24m

$344

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Sat 11/15

6:31 pm-12:36 am

1 stop5h 05m

Miami

Tue 11/18

5:18 am-9:40 am

1 stop5h 22m

$374

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Wed 3/4

6:35 pm-12:59 am

1 stop5h 24m

Miami

Sat 3/7

5:05 am-9:50 am

1 stop5h 45m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Fort Smith to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Fort Smith 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 Fort Smith to Key Largo

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

Currently, August is the cheapest month in which you can book a flight from Fort Smith to Key Largo (average of $91). Flying from Fort Smith to Key Largo in September is currently the most expensive (average of $234). 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.

How much does it cost to fly round-trip from Fort Smith to Key Largo?

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 October 30, 2025.
Read reviews from past customers who have flown American Airlines from Fort Smith 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.
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
11,034 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

Related info for your journey

Find useful and relevant information for your journey from Fort Smith 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 Fort Smith to Key Largo?

    Most people fly from Fort Smith (FSM) if they book a flight from Fort Smith to Key Largo. On average, Fort Smith has 0 outbound flights to Key Largo per day from 1 airline. Fort Smith is conveniently located just 3.8 mi from Fort Smith’s city center.

  • How long is the flight from Fort Smith to Key Largo?

    There are many flights that can get you from Fort Smith to Key Largo in 5h 36m. Fly via American Airlines to get the fastest option. Fort Smith and Key Largo are separated by a distance of 1063 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Fort Smith 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 Fort Smith to Key Largo?

    Currently, August is the cheapest month in which you can book a flight from Fort Smith to Key Largo (average of $91). Flying from Fort Smith to Key Largo in September is currently the most expensive (average of $234). 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.

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Top airline flying from Fort Smith to Key Largo

Discover the top airline that operate flights from Fort Smith 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$388Average$530FlexibilityNo cancel feeOn-time71%

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