$61+ Cheap flights from Charleston (CHS) 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — MIA
Mar 6 — Mar 131
1 adult, Economy
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Find cheap flights from Charleston 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.Cheapflights Tip: The best prices from Charleston to Key Largo are usually found in August or September, booked 70 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from Charleston to Key Largo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Charleston to Key LargoExplore the most affordable flight options available from Charleston to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
Explore the most affordable flight options available from Charleston to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:00 pm
CHS
- MIA
1 stop26h 13m
Spirit Airlines
Sat 3/1411:38 am
MIA
- CHS
1 stop23h 31m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:00 pm
CHS
- MIA
2 stops19h 16m
Spirit Airlines
Tue 3/1012:52 pm
MIA
- CHS
1 stop27h 13m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 pm
CHS
- MIA
2 stops19h 16m
Spirit Airlines
Tue 3/1711:38 am
MIA
- CHS
1 stop23h 31m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/156:15 am
CHS
- MIA
2 stops8h 02m
Multiple Airlines
Fri 2/2712:52 pm
MIA
- CHS
1 stop27h 13m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$164
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:04 pm
CHS
- MIA
1 stop7h 12m
Spirit Airlines
Tue 4/1411:38 am
MIA
- CHS
1 stop21h 02m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:00 pm
CHS
- MIA
2 stops24h 53m
Multiple Airlines
Sat 3/1411:38 am
MIA
- CHS
1 stop23h 31m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:04 pm
CHS
- MIA
1 stop7h 12m
Spirit Airlines
Tue 3/1711:38 am
MIA
- CHS
1 stop23h 31m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:35 pm
CHS
- MIA
2 stops17h 41m
Multiple Airlines
Fri 2/2712:52 pm
MIA
- CHS
1 stop27h 13m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$173
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:04 pm
CHS
- MIA
1 stop7h 12m
Spirit Airlines
Sat 4/187:35 am
MIA
- CHS
2 stops15h 06m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$175
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:00 pm
CHS
- MIA
1 stop7h 14m
Spirit Airlines
Tue 2/249:53 pm
MIA
- CHS
2 stops18h 12m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$176
Best flights from Charleston to Key LargoDiscover carefully curated flight deals from Charleston to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Charleston to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:00 pm
CHS
- MIA
2 stops24h 53m
Multiple Airlines
Sat 3/1411:38 am
MIA
- CHS
1 stop23h 31m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$167
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:35 am
CHS
- MIA
1 stop9h 50m
Spirit Airlines
Sat 5/27:35 am
MIA
- CHS
2 stops15h 06m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$218
This Delta deal was found by Cheapflights users on 2/2. 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 5/512:25 pm
CHS
- MIA
1 stop6h 10m
Delta
Thu 5/147:36 pm
MIA
- CHS
1 stop4h 33m
Delta
Deal found 2/2![Delta logo]()
$248
This Delta deal was found by Cheapflights users on 2/2. 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 5/55:20 am
CHS
- MIA
1 stop6h 51m
Delta
Fri 5/157:36 pm
MIA
- CHS
1 stop4h 33m
Delta
Deal found 2/2![Delta logo]()
$248
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:00 pm
CHS
- MIA
2 stops18h 16m
Spirit Airlines
Sat 3/149:14 am
MIA
- CHS
3 stops12h 59m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$249
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:04 pm
CHS
- MIA
1 stop7h 12m
Multiple Airlines
Sat 4/119:23 am
MIA
- CHS
2 stops25h 46m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$266
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:35 am
CHS
- MIA
2 stops7h 43m
Spirit Airlines
Fri 4/246:13 pm
MIA
- CHS
2 stops28h 28m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$254
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:44 pm
CHS
- MIA
1 stop5h 10m
Delta
Sat 5/27:04 am
MIA
- CHS
1 stop4h 16m
Delta
Deal found 2/3![Delta logo]()
$272
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:00 pm
CHS
- MIA
2 stops19h 16m
Spirit Airlines
Fri 2/204:01 pm
MIA
- CHS
3 stops25h 39m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 4/275:20 am
CHS
- MIA
1 stop5h 26m
Delta
Sat 5/26:00 am
MIA
- CHS
1 stop5h 20m
Delta
Deal found 2/2![Delta logo]()
$272
Last-minute flights from Charleston to Key LargoDiscover last-minute flight deals from Charleston to Key Largo. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Charleston to Key Largo. Data last updated February 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/156:15 am
CHS
- MIA
2 stops8h 02m
Multiple Airlines
Fri 2/2712:52 pm
MIA
- CHS
1 stop27h 13m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$164
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/166:35 pm
CHS
- MIA
2 stops17h 41m
Multiple Airlines
Wed 2/186:00 am
MIA
- CHS
1 stop9h 55m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$177
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:00 pm
CHS
- MIA
1 stop7h 14m
Spirit Airlines
Tue 2/249:53 pm
MIA
- CHS
2 stops18h 12m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:35 pm
CHS
- MIA
2 stops17h 41m
Multiple Airlines
Fri 2/2712:52 pm
MIA
- CHS
1 stop27h 13m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:00 pm
CHS
- MIA
2 stops19h 16m
Spirit Airlines
Tue 3/1012:52 pm
MIA
- CHS
1 stop27h 13m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:00 pm
CHS
- MIA
2 stops24h 53m
Multiple Airlines
Sat 3/1411:38 am
MIA
- CHS
1 stop23h 31m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:00 pm
CHS
- MIA
1 stop26h 13m
Spirit Airlines
Sat 3/1411:38 am
MIA
- CHS
1 stop23h 31m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$145
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:00 pm
CHS
- MIA
1 stop26h 13m
Multiple Airlines
Sat 3/145:05 am
MIA
- CHS
2 stops17h 08m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 pm
CHS
- MIA
2 stops19h 16m
Spirit Airlines
Tue 3/1711:38 am
MIA
- CHS
1 stop23h 31m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:04 pm
CHS
- MIA
1 stop7h 12m
Spirit Airlines
Tue 3/1711:38 am
MIA
- CHS
1 stop23h 31m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$172
One-way flights from Charleston to Key LargoSearch for one-way flight options from Charleston to Key Largo. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Charleston to Key Largo. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1812:04 pm
CHS
- MIA
1 stop7h 12m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$61
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/185:00 pm
CHS
- MIA
1 stop7h 14m
Spirit Airlines
Deal found 2/4![Spirit Airlines logo]()
$67
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:00 pm
CHS
- MIA
1 stop27h 13m
Spirit Airlines
Deal found 2/4![Spirit Airlines logo]()
$69
This CheapOair deal was found by Cheapflights users on 2/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1412:04 pm
CHS
- MIA
1 stop7h 12m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$71
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:00 pm
CHS
- MIA
1 stop7h 14m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$75
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:00 pm
CHS
- MIA
1 stop27h 13m
Spirit Airlines
Deal found 2/4![Spirit Airlines logo]()
$77
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:00 pm
CHS
- MIA
2 stops19h 16m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$83
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:35 pm
CHS
- MIA
2 stops17h 05m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$92
Find flight deals from Charleston to Key Largo
Keep the following information in mind while searching for Charleston to Key Largo flight deals. Data was last updated February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $145 (Kiwi.com) |
One-way from | $61 (Mytrip) |
Popular in | March |
Cheapest in | August |
Average price | $309 |
Cheapflights Fare Finder
Customize your flight search to find flights from Charleston 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 4, 2026.
Use the filters below to find and compare flights from Charleston to Key Largo that are best for you.
Fly from
Charleston
Fly to
Key Largo
Route
Depart
Return
Price
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Fri 3/6
5:00 pm-5:53 pm
2 stops24h 53m
Miami
Sat 3/14
11:38 am-11:09 am
1 stop23h 31m
$167
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Fri 4/24
9:35 am-7:25 pm
1 stop9h 50m
Miami
Sat 5/2
7:35 am-10:41 pm
2 stops15h 06m
$218
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Tue 5/5
12:25 pm-6:35 pm
1 stop6h 10m
Miami
Thu 5/14
7:36 pm-12:09 am
1 stop4h 33m
$248
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Tue 5/5
5:20 am-12:11 pm
1 stop6h 51m
Miami
Fri 5/15
7:36 pm-12:09 am
1 stop4h 33m
$248
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Sat 3/7
5:00 pm-11:16 am
2 stops18h 16m
Miami
Sat 3/14
9:14 am-10:13 pm
3 stops12h 59m
$249
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Mon 4/20
9:35 am-5:18 pm
2 stops7h 43m
Miami
Fri 4/24
6:13 pm-10:41 pm
2 stops28h 28m
$254
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Tue 2/17
5:00 pm-12:16 pm
2 stops19h 16m
Miami
Fri 2/20
4:01 pm-5:40 pm
3 stops25h 39m
$257
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Tue 4/7
12:04 pm-7:16 pm
1 stop7h 12m
Miami
Sat 4/11
9:23 am-11:09 am
2 stops25h 46m
$266
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Fri 4/24
7:44 pm-12:54 am
1 stop5h 10m
Miami
Sat 5/2
7:04 am-11:20 am
1 stop4h 16m
$272
CharlestonMiami
CHS - MIA
CHSMIA
Charleston
Mon 4/27
5:20 am-10:46 am
1 stop5h 26m
Miami
Sat 5/2
6:00 am-11:20 am
1 stop5h 20m
$272
Showing 1-10 of 21 results
Best time to book a flight from Charleston to Key Largo
Have a flexible travel schedule? Discover the best time to fly to Key Largo from Charleston with our price prediction graph.
CHS-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 Charleston to Key Largo
CHS-KE9
CHS-MIA
How far ahead should I book a flight from Charleston to Key Largo?
Use this chart to determine the optimal time to book a round-trip flight from Charleston to Key Largo. Price data was last updated on January 30, 2026.
The best time to book flights from Charleston to Key Largo is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Charleston to Key Largo?
Currently, March is the cheapest month in which you can book a flight from Charleston to Key Largo (average of $33). Flying from Charleston to Key Largo in June is currently the most expensive (average of $76). 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 CHS to KE9?
Find hourly flight availability from Charleston 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 February 4, 2026.
A simple way to save on the total cost of your ticket is to fly from Charleston to Key Largo in the afternoon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Charleston to Key Largo?
Use this chart to determine the cheapest time to fly round-trip from Charleston to Key Largo. Price data was last updated on January 31, 2026.
Travelers seeking maximum savings on their Charleston to Key Largo flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Charleston to Key Largo
Explore weekly flight availability from Charleston to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 4, 2026.
The most flights from CHS to KE9 are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
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 4, 2026.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Charleston 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.
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Charleston to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Charleston and Key Largo flights
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Top 6 airlines flying from Charleston to Key Largo
Discover the top 6 airlines that operate flights from Charleston 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$34 | Average$97 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$78 | Average$192 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$95 | Average$211 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$113 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$245 | Average$339 | FlexibilityNo cancel fee | On-time63% |