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$130+ Cheap flights from Key Largo, FL to Dayton (DAY)

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — DAY
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Key Largo to Dayton

Cheapest flights from Key Largo to Dayton
Explore the most affordable flight options available from Key Largo to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This United Airlines deal was found by Cheapflights users on 12/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:10 pmMIA - DAY
1 stop6h 12mUnited Airlines
Mon 1/52:51 pmDAY - MIA
1 stop5h 20mUnited Airlines
Deal found 12/20$414
This Delta deal was found by Cheapflights users on 12/20. 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 12/266:00 amMIA - DAY
1 stop5h 19mDelta
Mon 12/297:46 pmDAY - MIA
1 stop5h 02mDelta
Deal found 12/20$459
This American Airlines deal was found by Cheapflights users on 12/19. 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 12/233:28 pmMIA - DAY
1 stop6h 33mAmerican Airlines
Thu 12/257:07 amDAY - MIA
1 stop7h 15mAmerican Airlines
Deal found 12/19$469
This Delta deal was found by Cheapflights users on 12/19. 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 12/2611:45 amMIA - DAY
1 stop7h 16mDelta
Sun 12/287:46 pmDAY - MIA
1 stop5h 02mDelta
Deal found 12/19$508
This Delta deal was found by Cheapflights users on 12/20. 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 12/2211:54 amMIA - DAY
1 stop7h 07mDelta
Sun 12/287:46 pmDAY - MIA
1 stop5h 02mDelta
Deal found 12/20$518
This United Airlines deal was found by Cheapflights users on 12/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:00 amMIA - DAY
2 stops10h 46mUnited Airlines
Mon 12/296:28 amDAY - MIA
2 stops12h 17mUnited Airlines
Deal found 12/20$615
This United Airlines deal was found by Cheapflights users on 12/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:00 amMIA - DAY
2 stops10h 46mUnited Airlines
Sun 12/285:21 pmDAY - MIA
1 stop25h 14mUnited Airlines
Deal found 12/19$637
This American Airlines deal was found by Cheapflights users on 12/19. 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 12/241:41 pmMIA - DAY
1 stop6h 12mAmerican Airlines
Fri 12/267:30 pmDAY - MIA
1 stop5h 17mAmerican Airlines
Deal found 12/19$645
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/2410:09 amMIA - DAY
1 stop6h 58mAmerican Airlines
Sat 12/277:30 pmDAY - MIA
1 stop5h 17mAmerican Airlines
Deal found 12/18$730

Find flight deals from Key Largo to Dayton

Keep the following information in mind while searching for Key Largo to Dayton flight deals. Data was last updated December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$217
(Delta)

One-way from

$130
(Delta)

Popular in

April

Cheapest in

January

Average price

$314
Provider with most accurate pricing for Miami-Dayton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Dayton flights.
Search Deals
From Key Largo to Dayton
Search Deals
One-way flight from Key Largo to Dayton
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Dayton 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 December 21, 2025.
Use the filters below to find and compare flights from Key Largo to Dayton that are best for you.

Fly from

Key Largo

Fly to

Dayton

Route

Depart

Return

Price

MiamiDayton

MIA - DAY

MIADAY

Miami

Thu 2/5

5:50 am-10:50 am

1 stop5h 00m

Dayton

Sun 2/8

4:00 pm-8:44 pm

1 stop4h 44m

$217

MiamiDayton

MIA - DAY

MIADAY

Miami

Wed 1/7

11:05 am-11:44 pm

2 stops12h 39m

Dayton

Sat 1/10

9:05 am-10:20 pm

2 stops13h 15m

$307

MiamiDayton

MIA - DAY

MIADAY

Miami

Mon 2/2

3:35 pm-9:44 pm

1 stop6h 09m

Dayton

Thu 2/5

3:29 pm-10:42 pm

1 stop7h 13m

$311

MiamiDayton

MIA - DAY

MIADAY

Miami

Wed 12/31

2:10 pm-8:22 pm

1 stop6h 12m

Dayton

Mon 1/5

2:51 pm-8:11 pm

1 stop5h 20m

$414

MiamiDayton

MIA - DAY

MIADAY

Miami

Thu 1/1

7:00 am-4:46 pm

2 stops9h 46m

$175

MiamiDayton

MIA - DAY

MIADAY

Miami

Mon 1/19

5:50 am-10:50 am

1 stop5h 00m

$219

MiamiDayton

MIA - DAY

MIADAY

Miami

Thu 1/1

7:00 am-4:46 pm

2 stops9h 46m

$245

MiamiDayton

MIA - DAY

MIADAY

Miami

Sun 2/8

5:30 am-3:29 pm

3 stops33h 59m

$270

MiamiDayton

MIA - DAY

MIADAY

Miami

Sun 2/22

6:30 am-12:11 pm

1 stop5h 41m

$279

MiamiDayton

MIA - DAY

MIADAY

Miami

Mon 12/29

10:34 am-3:19 pm

1 stop4h 45m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 15 results
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Best time to book a flight from Key Largo to Dayton

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

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

Currently, February is the cheapest month in which you can book a flight from Key Largo to Dayton (average of $29). Flying from Key Largo to Dayton in September is currently the most expensive (average of $77). 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 KE9 to DAY?

Find hourly flight availability from Key Largo to Dayton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

It’s typically best to fly out from Key Largo to Dayton in the evening. Doing so could potentially save you 35% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Dayton

Get insights into the airlines that provide service to Dayton. 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 Dayton. Reviews last updated December 21, 2025.
Read reviews from past customers who have flown Delta and American Airlines from Key Largo to Dayton. 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.
Delta
7.9
Good
8,021 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
7.9
Good
8,021 reviews
Delta
7.9
Good
8,021 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
11,050 reviews
Delta
7.9
Good
8,021 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Dayton. 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 into for flights to Dayton from Key Largo?

    Dayton (DAY) is the airport you will fly into if you book a flight from Key Largo to Dayton. You should not have trouble finding flights to Dayton from Key Largo; the airport handles an average of 0 inbound flights from Key Largo per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Dayton airport from Key Largo. It is only a 10.0 mi journey from Dayton (DAY) to Dayton’s city center.

  • How long is the flight from Key Largo to Dayton?

    For as low as $217, Delta can have you in Dayton from Key Largo in 5h. The distance between Key Largo and Dayton is about 1000 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Dayton 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 Key Largo to Dayton?

    Currently, February is the cheapest month in which you can book a flight from Key Largo to Dayton (average of $29). Flying from Key Largo to Dayton in September is currently the most expensive (average of $77). 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

Traveling to a place near Dayton?

Book flights to Dayton if you plan to visit one of these locations
Huber Heights
Springfield
Troy
Xenia
Greenville
Miamisburg

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Top 2 airlines flying from Key Largo to Dayton

Discover the top 2 airlines that operate flights from Key Largo to Dayton. 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$386FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$307FlexibilityNo cancel feeOn-timeN/A

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