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Cheap flights from Florida Keys to the United States from $29

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Florida Keys to the United States departing on 1/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Florida Keys to the United States

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
7:05 am - 9:07 am
MIA
-
ATL
2h 02mnonstop
Spirit Airlines Logo
10:12 am - 12:16 pm
ATL
-
MIA
2h 04mnonstop
$52Spirit Airlines
Thu, Feb 19 - Tue, Feb 24
Multiple Airlines Logo
7:00 am - 9:02 am
MIA
-
ATL
2h 02mnonstop
Multiple Airlines Logo
10:45 pm - 12:42 am
ATL
-
MIA
1h 57mnonstop
$55Multiple Airlines
Fri, Jan 16 - Mon, Jan 19
Multiple Airlines Logo
6:59 pm - 9:26 pm
MIA
-
ATL
2h 27mnonstop
Multiple Airlines Logo
9:57 am - 11:56 am
ATL
-
MIA
1h 59mnonstop
$57Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Frontier Logo
7:09 pm - 9:45 pm
MIA
-
ATL
2h 36mnonstop
Frontier Logo
10:45 pm - 12:42 am
ATL
-
MIA
1h 57mnonstop
$58Frontier
Tue, Feb 17 - Thu, Feb 26
Frontier Logo
5:15 am - 7:29 am
MIA
-
ATL
2h 14mnonstop
Frontier Logo
12:16 pm - 2:15 pm
ATL
-
MIA
1h 59mnonstop
$59Frontier
Fri, Jan 16 - Mon, Jan 19
Spirit Airlines Logo
7:00 am - 9:02 am
MIA
-
ATL
2h 02mnonstop
Spirit Airlines Logo
9:57 am - 11:56 am
ATL
-
MIA
1h 59mnonstop
$61Spirit Airlines
Sun, Jan 18 - Sun, Jan 25
Southwest Logo
7:00 am - 9:20 am
MIA
-
DAL
3h 20mnonstop
Southwest Logo
6:30 pm - 10:10 pm
DAL
-
MIA
2h 40mnonstop
$179Southwest
Fri, Feb 6 - Mon, Feb 9
Southwest Logo
7:00 am - 9:20 am
MIA
-
DAL
3h 20mnonstop
Southwest Logo
6:30 pm - 10:10 pm
DAL
-
MIA
2h 40mnonstop
$199Southwest
Fri, Jan 16 - Mon, Jan 19
Delta Logo
6:05 pm - 10:29 pm
MIA
-
DAL
5h 24m1 stop
Delta Logo
6:00 am - 12:23 pm
DAL
-
MIA
5h 23m1 stop
$217Delta
Thu, Jan 22 - Mon, Jan 26
Delta Logo
5:50 am - 11:04 am
MIA
-
DAL
6h 14m1 stop
Delta Logo
2:17 pm - 9:41 pm
DAL
-
MIA
6h 24m1 stop
$218Delta
Thu, Jan 15 - Wed, Jan 21

Frontier flights from Florida Keys to United States

Our best Frontier deals on Florida Keys to United States flight tickets
Frontier
Feb 17
MIA5:05 amMiami
2h 14m
ATL7:19 amAtlanta Hartsfield-Jackson
Feb 24
ATL3:48 pmAtlanta Hartsfield-Jackson
2h 01m
MIA5:49 pmMiami
$58
Find similar
Frontier
Jan 16
MIA5:15 amMiami
2h 14m
ATL7:29 amAtlanta Hartsfield-Jackson
Jan 19
ATL12:16 pmAtlanta Hartsfield-Jackson
1h 59m
MIA2:15 pmMiami
$59
Find similar
Frontier
Jan 6
MIA12:49 pmMiami
2h 21m
ATL3:10 pmAtlanta Hartsfield-Jackson
Jan 9
ATL12:33 pmAtlanta Hartsfield-Jackson
2h 01m
MIA2:34 pmMiami
$64
Find similar

Spirit Airlines flights from Florida Keys to United States

Our best Spirit Airlines deals on Florida Keys to United States flight tickets
Spirit Airlines
Feb 19
MIA7:05 amMiami
2h 02m
ATL9:07 amAtlanta Hartsfield-Jackson
Feb 22
ATL10:12 amAtlanta Hartsfield-Jackson
2h 04m
MIA12:16 pmMiami
$52
Find similar
Spirit Airlines
Jan 18
MIA7:00 amMiami
2h 02m
ATL9:02 amAtlanta Hartsfield-Jackson
Jan 25
ATL9:57 amAtlanta Hartsfield-Jackson
1h 59m
MIA11:56 amMiami
$61
Find similar
Spirit Airlines
Jan 5
MIA9:59 pmMiami
2h 00m
ATL11:59 pmAtlanta Hartsfield-Jackson
Jan 12
ATL9:57 amAtlanta Hartsfield-Jackson
1h 59m
MIA11:56 amMiami
$63
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Florida Keys to United States 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, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Florida Keys to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MiamiAtlanta

MIA - ATL

MIAATL

Miami

Thu 2/19

7:05 am-9:07 am

Nonstop2h 02m

Atlanta Hartsfield-Jackson

Tue 2/24

10:12 am-12:16 pm

Nonstop2h 04m

$52

MiamiAtlanta

MIA - ATL

MIAATL

Miami

Fri 1/16

7:00 am-9:02 am

Nonstop2h 02m

Atlanta Hartsfield-Jackson

Mon 1/19

10:45 pm-12:42 am

Nonstop1h 57m

$55

MiamiAtlanta

MIA - ATL

MIAATL

Miami

Tue 1/20

6:59 pm-9:26 pm

Nonstop2h 27m

Atlanta Hartsfield-Jackson

Tue 1/27

9:57 am-11:56 am

Nonstop1h 59m

$57

MiamiAtlanta

MIA - ATL

MIAATL

Miami

Tue 2/17

7:09 pm-9:45 pm

Nonstop2h 36m

Atlanta Hartsfield-Jackson

Thu 2/26

10:45 pm-12:42 am

Nonstop1h 57m

$58

MiamiAtlanta

MIA - ATL

MIAATL

Miami

Fri 1/16

5:15 am-7:29 am

Nonstop2h 14m

Atlanta Hartsfield-Jackson

Mon 1/19

12:16 pm-2:15 pm

Nonstop1h 59m

$59

MiamiAtlanta

MIA - ATL

MIAATL

Miami

Sun 1/18

7:00 am-9:02 am

Nonstop2h 02m

Atlanta Hartsfield-Jackson

Sun 1/25

9:57 am-11:56 am

Nonstop1h 59m

$61

MiamiDallas

MIA - DAL

MIADAL

Miami

Fri 2/6

7:00 am-9:20 am

Nonstop3h 20m

Dallas Love Field

Mon 2/9

6:30 pm-10:10 pm

Nonstop2h 40m

$179

MiamiDallas

MIA - DAL

MIADAL

Miami

Fri 1/16

7:00 am-9:20 am

Nonstop3h 20m

Dallas Love Field

Mon 1/19

6:30 pm-10:10 pm

Nonstop2h 40m

$199

MiamiDallas

MIA - DAL

MIADAL

Miami

Thu 1/22

6:05 pm-10:29 pm

1 stop5h 24m

Dallas Love Field

Mon 1/26

6:00 am-12:23 pm

1 stop5h 23m

$217

MiamiDallas

MIA - DAL

MIADAL

Miami

Thu 1/15

5:50 am-11:04 am

1 stop6h 14m

Dallas Love Field

Wed 1/21

2:17 pm-9:41 pm

1 stop6h 24m

$218

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United States from

How to get the cheapest flight ticket from Florida Keys to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to United States?

In general, January is the cheapest month to fly from Florida Keys to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $137. If you aren’t able to travel during the month of January, then book flights to United States from Florida Keys during September instead. Flights to United States in September, while not as cheap as those in January, still average around $137.

What is the cheapest day to depart on your flight to United States?

According to our data, Wednesday is the cheapest day to fly to United States from Florida Keys. The lowest ticket price found for a Wednesday departure recently was $324. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $730. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $324. Try not to purchase tickets at noon because they tend to be around $387. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Florida Keys to United States flight route?

Fly from Key West to Orlando for the best Florida Keys - United States flight prices

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from Florida Keys when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $176 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Florida Keys for as low as $143 on momondo.

What cabin class options are available on Florida Keys to United States flights?

There are 4 cabin classes available to choose from on Florida Keys to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Florida Keys to United States flights?

No. A direct flight is the cheapest option for a flight between Florida Keys to United States.

Cheap Florida Keys to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Florida Keys to United States

Fastest flight time

0h 56m

Direct flights

Every day

Airports in United States

4,296 airports
The fastest flight from Florida Keys to United States takes 0h 56m
Direct flights go from Florida Keys to United States every day.
There are 4,296 airports in United States. From Florida Keys there are direct flights to Atlanta Hartsfield-Jackson (ATL).
Search flight deals

  • When did momondo last update prices for flights from Florida Keys to United States?

    Prices for flights from Florida Keys to United States are refreshed on a daily basis.

  • How many operators does momondo search for flights from Florida Keys to United States?

  • How old do you have to be to fly from Florida Keys to United States?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Florida Keys to United States.

  • What documentation or ID do you need to fly to United States?

    The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Florida Keys to United States?

Best airlines flying from Florida Keys to United States

Compare and see reviews for airlines that fly from Florida Keys to United States with momondo
Airline
Rating
Free Cancellation
Price
Breeze AirwaysPriceFrom $101Free CancellationRating
8.2
249 reviews
Search Breeze Airways flights
Silver AirwaysPriceFrom $172Free CancellationRating
5.7
235 reviews
Search Silver Airways flights
American AirlinesPriceFrom $182Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,015 reviews
Search Delta flights
JetBluePriceFrom $277Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights

Why use momondo?

Why should I use momondo to find a flight deal from Florida Keys to United States?

It is quick and easy to find Florida Keys to United States flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United States that suits you.

Can I find flights from Florida Keys to United States with flexible booking policies on momondo?

Yes. All flights to United States from Florida Keys on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Florida Keys to United States?

momondo helps you find the best flight between Florida Keys and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Florida Keys to United States right now. Can momondo alert me if prices change?

Price alerts on flights to United States from Florida Keys are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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