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Key Largo

$299+ 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
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap 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 February 6, 2026.

This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:10 am
FSM
-
MIA
1 stop7h 36m
American Airlines
Tue 4/145:31 pm
MIA
-
FSM
1 stop5h 54m
American Airlines
Deal found 2/3$299
This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:24 pm
FSM
-
MIA
1 stop5h 35m
American Airlines
Tue 2/245:00 am
MIA
-
FSM
1 stop5h 49m
American Airlines
Deal found 2/3$314
This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:44 pm
FSM
-
MIA
1 stop5h 03m
American Airlines
Sun 9/205:18 am
MIA
-
FSM
1 stop5h 07m
American Airlines
Deal found 2/3$438
This American Airlines deal was found by Cheapflights users on 2/5. 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 2/196:24 pm
FSM
-
MIA
1 stop5h 35m
American Airlines
Mon 2/235:00 am
MIA
-
FSM
1 stop5h 49m
American Airlines
Deal found 2/5$473
This American Airlines deal was found by Cheapflights users on 2/5. 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.
Tue 3/176:24 pm
FSM
-
MIA
1 stop5h 35m
American Airlines
Sun 3/225:00 am
MIA
-
FSM
1 stop5h 49m
American Airlines
Deal found 2/5$556
This American Airlines deal was found by Cheapflights users on 2/5. 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 3/56:07 am
FSM
-
MIA
2 stops8h 24m
American Airlines
Thu 3/125:00 am
MIA
-
FSM
1 stop5h 49m
American Airlines
Deal found 2/5$561
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Mon 4/1311:10 am
FSM
-
MIA
1 stop7h 36m
American Airlines
Wed 4/156:05 am
MIA
-
FSM
1 stop5h 35m
American Airlines
Deal found 2/4$581
This American Airlines deal was found by Cheapflights users on 2/5. 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 6/205:15 pm
FSM
-
MIA
1 stop15h 39m
American Airlines
Sat 6/275:26 am
MIA
-
FSM
1 stop12h 19m
American Airlines
Deal found 2/5$751

Find 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 February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$299
(American Airlines)

Popular in

March

Cheapest in

July

Average price

$458
Provider with most accurate pricing for Fort Smith-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Fort Smith-Miami flights.
Search Deals
From Fort Smith to Key Largo
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 6, 2026.
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

11:10 am-7:46 pm

1 stop7h 36m

Miami

Tue 4/14

6:05 am-10:40 am

1 stop5h 35m

$299

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Thu 3/5

6:24 pm-12:59 am

1 stop5h 35m

Miami

Thu 3/12

5:00 am-9:49 am

1 stop5h 49m

$299

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Fri 2/20

6:24 pm-12:59 am

1 stop5h 35m

Miami

Tue 2/24

5:00 am-9:49 am

1 stop5h 49m

$314

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Thu 2/19

6:24 pm-12:59 am

1 stop5h 35m

Miami

Mon 2/23

5:00 am-9:49 am

1 stop5h 49m

$473

Fort SmithMiami

FSM - MIA

FSMMIA

Fort Smith

Mon 4/13

11:10 am-7:46 pm

1 stop7h 36m

Miami

Wed 4/15

6:05 am-10:40 am

1 stop5h 35m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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, March is the cheapest month in which you can book a flight from Fort Smith to Key Largo (average of $87). Flying from Fort Smith to Key Largo in November is currently the most expensive (average of $252). 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 February 6, 2026.
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
11,237 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,237 reviews
American Airlines
7.2
Good
11,237 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 7h 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, March is the cheapest month in which you can book a flight from Fort Smith to Key Largo (average of $87). Flying from Fort Smith to Key Largo in November is currently the most expensive (average of $252). 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 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$388Average$525FlexibilityNo cancel feeOn-time71%

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