$330+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
FSM — MIA
Jun 25 — Jul 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Fort Smith to Key Largo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Fort Smith to Key Largo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Fort Smith to Key LargoExplore 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 May 26, 2026.
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 May 26, 2026.
This American Airlines deal was found by Cheapflights users on 5/22. 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 8/65:15 pm
FSM
- MIA
1 stop5h 43m
American Airlines
Sat 8/155:20 am
MIA
- FSM
1 stop5h 20m
American Airlines
Deal found 5/22![American Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 5/23. 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 6/235:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Tue 6/305:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/23![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 5/24. 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 7/65:15 pm
FSM
- MIA
1 stop5h 41m
American Airlines
Sun 7/125:25 am
MIA
- FSM
1 stop5h 11m
American Airlines
Deal found 5/24![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 5/22. 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 6/65:37 pm
FSM
- MIA
1 stop5h 22m
American Airlines
Wed 6/105:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/22![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/22. 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 7/46:10 am
FSM
- MIA
1 stop6h 19m
American Airlines
Sat 7/115:25 am
MIA
- FSM
1 stop5h 10m
American Airlines
Deal found 5/22![American Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 5/21. 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 8/15:21 pm
FSM
- MIA
1 stop5h 35m
American Airlines
Sat 8/85:20 am
MIA
- FSM
1 stop5h 20m
American Airlines
Deal found 5/21![American Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 5/22. 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 7/145:15 pm
FSM
- MIA
1 stop5h 41m
American Airlines
Sat 7/185:25 am
MIA
- FSM
1 stop5h 10m
American Airlines
Deal found 5/22![American Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 5/22. 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 7/115:21 pm
FSM
- MIA
1 stop5h 35m
American Airlines
Fri 7/175:25 am
MIA
- FSM
1 stop5h 11m
American Airlines
Deal found 5/22![American Airlines logo]()
$430
This American Airlines deal was found by Cheapflights users on 5/26. 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 8/285:15 pm
FSM
- MIA
1 stop5h 43m
American Airlines
Sat 9/510:10 am
MIA
- FSM
1 stop7h 35m
American Airlines
Deal found 5/26![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 5/22. 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 7/105:15 pm
FSM
- MIA
1 stop5h 41m
American Airlines
Fri 7/175:25 am
MIA
- FSM
1 stop5h 11m
American Airlines
Deal found 5/22![American Airlines logo]()
$439
Best flights from Fort Smith to Key LargoDiscover carefully curated flight deals from Fort Smith to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 26, 2026.
Discover carefully curated flight deals from Fort Smith to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 26, 2026.
This American Airlines deal was found by Cheapflights users on 5/22. 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 8/65:15 pm
FSM
- MIA
1 stop5h 43m
American Airlines
Sat 8/155:20 am
MIA
- FSM
1 stop5h 20m
American Airlines
Deal found 5/22![American Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 5/22. 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 6/65:37 pm
FSM
- MIA
1 stop5h 22m
American Airlines
Wed 6/105:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/22![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/22. 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 7/410:06 am
FSM
- MIA
1 stop7h 18m
American Airlines
Sat 7/115:25 am
MIA
- FSM
1 stop5h 10m
American Airlines
Deal found 5/22![American Airlines logo]()
$411
This American Airlines deal was found by Cheapflights users on 5/26. 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 8/285:15 pm
FSM
- MIA
1 stop5h 43m
American Airlines
Sat 9/510:10 am
MIA
- FSM
1 stop7h 35m
American Airlines
Deal found 5/26![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 5/21. 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 8/15:21 pm
FSM
- MIA
1 stop5h 35m
American Airlines
Sat 8/83:56 pm
MIA
- FSM
2 stops8h 01m
American Airlines
Deal found 5/21![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 5/23. 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 6/235:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Tue 6/303:55 pm
MIA
- FSM
2 stops9h 02m
American Airlines
Deal found 5/23![American Airlines logo]()
$481
This American Airlines deal was found by Cheapflights users on 5/21. 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 6/185:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Wed 6/245:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/21![American Airlines logo]()
$547
This American Airlines deal was found by Cheapflights users on 5/24. 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 6/265:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Sat 7/410:05 am
MIA
- FSM
1 stop7h 46m
American Airlines
Deal found 5/24![American Airlines logo]()
$555
This American Airlines deal was found by Cheapflights users on 5/22. 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 7/135:15 pm
FSM
- MIA
1 stop5h 41m
American Airlines
Mon 7/205:25 am
MIA
- FSM
1 stop5h 11m
American Airlines
Deal found 5/22![American Airlines logo]()
$558
Last-minute flights from Fort Smith to Key LargoDiscover last-minute flight deals from Fort Smith to Key Largo. Data last updated May 26, 2026 and is based on user searches.
Discover last-minute flight deals from Fort Smith to Key Largo. Data last updated May 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/22. 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 5/2310:06 am
FSM
- MIA
1 stop7h 20m
American Airlines
Sun 5/2410:05 am
MIA
- FSM
1 stop7h 39m
American Airlines
Deal found 5/22![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 5/25. 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 5/2910:06 am
FSM
- MIA
1 stop7h 20m
American Airlines
Sun 5/3110:05 am
MIA
- FSM
1 stop7h 39m
American Airlines
Deal found 5/25![American Airlines logo]()
$589
This American Airlines deal was found by Cheapflights users on 5/22. 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 6/65:37 pm
FSM
- MIA
1 stop5h 22m
American Airlines
Wed 6/105:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/22![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/23. 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 6/155:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Fri 6/195:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/23![American Airlines logo]()
$627
This American Airlines deal was found by Cheapflights users on 5/21. 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 6/185:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Wed 6/245:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/21![American Airlines logo]()
$547
This American Airlines deal was found by Cheapflights users on 5/23. 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 6/235:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Tue 6/305:24 am
MIA
- FSM
1 stop5h 12m
American Airlines
Deal found 5/23![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 5/22. 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 6/265:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Sat 7/45:25 am
MIA
- FSM
1 stop5h 10m
American Airlines
Deal found 5/22![American Airlines logo]()
$549
One-way flights from Fort Smith to Key LargoSearch for one-way flight options from Fort Smith to Key Largo. Find affordable one-way fares based on user searches. Data last updated May 26, 2026.
Search for one-way flight options from Fort Smith to Key Largo. Find affordable one-way fares based on user searches. Data last updated May 26, 2026.
This American Airlines deal was found by Cheapflights users on 5/24. 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 6/65:37 pm
FSM
- MIA
1 stop5h 22m
American Airlines
Deal found 5/24![American Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 5/23. 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 6/75:15 pm
FSM
- MIA
1 stop5h 44m
American Airlines
Deal found 5/23![American Airlines logo]()
$389
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 May 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $330 (American Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $605 |
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 May 26, 2026.
Use the filters below to find and compare flights from Fort Smith to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Thu 8/6
5:15 pm-11:58 pm
1 stop5h 43m
Miami
Sat 8/15
5:20 am-9:40 am
1 stop5h 20m
$330
Quickest round-trip
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Sat 6/6
5:37 pm-11:59 pm
1 stop5h 22m
Miami
Wed 6/10
5:24 am-9:36 am
1 stop5h 12m
$389
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Sat 7/4
10:06 am-6:24 pm
1 stop7h 18m
Miami
Sat 7/11
5:25 am-9:35 am
1 stop5h 10m
$411
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Fri 8/28
5:15 pm-11:58 pm
1 stop5h 43m
Miami
Sat 9/5
10:10 am-4:45 pm
1 stop7h 35m
$437
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Sat 8/1
5:21 pm-11:56 pm
1 stop5h 35m
Miami
Sat 8/8
3:56 pm-10:57 pm
2 stops8h 01m
$464
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Tue 6/23
5:15 pm-11:59 pm
1 stop5h 44m
Miami
Tue 6/30
3:55 pm-11:57 pm
2 stops9h 02m
$481
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Thu 6/18
5:15 pm-11:59 pm
1 stop5h 44m
Miami
Wed 6/24
5:24 am-9:36 am
1 stop5h 12m
$547
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Fri 6/26
5:15 pm-11:59 pm
1 stop5h 44m
Miami
Sat 7/4
10:05 am-4:51 pm
1 stop7h 46m
$555
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Mon 7/13
5:15 pm-11:56 pm
1 stop5h 41m
Miami
Mon 7/20
5:25 am-9:36 am
1 stop5h 11m
$558
Cheapest one-way
Quickest one-way
Fort SmithMiami
FSM - MIA
FSMMIA
Fort Smith
Sat 6/6
5:37 pm-11:59 pm
1 stop5h 22m
$385
Showing 1-10 of 11 resultsSorted by cheapest first
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.
FSM-MIA
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
FSM-KE9
FSM-MIA
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 May 26, 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.
Crew
7.9
Food
6.4
Entertainment
6.9
Overall
7.1
Boarding
7.5
Comfort
7.2
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Crew
7.9
Food
6.4
Entertainment
6.9
Overall
7.1
Boarding
7.5
Comfort
7.2
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Fort Smith
Popular flights
Top destinations
Alternative routes for Fort Smith to Key Largo
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Key Largo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Fort Smith to Key Largo by cabin class
Find flights from Fort Smith to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Fort Smith and Key Largo flights
Browse other Fort Smith and Key Largo flight options. Last updated on May 26, 2026.
Other flights from Fort Smith
Browse through other flights departing from Fort Smith. Flights are based on user searches made on Cheapflights and were last updated on May 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fort Smith to Key Largo flights
Consider these flights traveling from Fort Smith to Key Largo.
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 May 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$347 | Average$488 | FlexibilityNo cancel fee | On-time71% |