HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dayton

$100+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — DAY
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Dayton 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 Key Largo to Dayton

Keep the following information in mind while searching for Key Largo to Dayton flight deals. Data was last updated September 11, 2025.

Round-trip from

$248
(Delta)

One-way from

$100
(American Airlines)

Popular in

April

Cheapest in

January

Average price

$345
From Key Largo to Dayton
Search Deals
One-way flight from Key Largo to Dayton
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 10/86:00 amMIA - DAY
1 stop6h 44mDelta
Wed 10/1511:09 amDAY - MIA
1 stop6h 01mDelta
Deal found 9/9$259
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 12/243:46 pmMIA - DAY
1 stop5h 15mDelta
Mon 12/297:52 pmDAY - MIA
1 stop4h 58mDelta
Deal found 9/10$263
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 11/2511:55 amMIA - DAY
2 stops11h 48mUnited Airlines
Sun 12/77:15 amDAY - MIA
1 stop7h 55mUnited Airlines
Deal found 9/10$264
This Delta deal was found by Cheapflights users on 9/10. 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 12/232:01 pmMIA - DAY
1 stop5h 06mDelta
Sun 12/287:52 pmDAY - MIA
1 stop4h 58mDelta
Deal found 9/10$274
This American Airlines deal was found by Cheapflights users on 9/10. 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 9/262:37 pmMIA - DAY
1 stop9h 00mAmerican Airlines
Sun 9/286:06 amDAY - MIA
1 stop6h 39mAmerican Airlines
Deal found 9/10$289
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/256:45 amMIA - DAY
2 stops10h 27mUnited Airlines
Mon 9/2911:42 amDAY - MIA
2 stops11h 03mUnited Airlines
Deal found 9/10$313
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/2412:00 pmMIA - DAY
1 stop8h 22mUnited Airlines
Sat 12/272:15 pmDAY - MIA
1 stop8h 00mUnited Airlines
Deal found 9/10$328
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 12/229:00 amMIA - DAY
1 stop7h 46mUnited Airlines
Sun 12/282:15 pmDAY - MIA
1 stop8h 00mUnited Airlines
Deal found 9/10$339
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/81:15 pmMIA - DAY
2 stops10h 28mUnited Airlines
Wed 10/159:00 amDAY - MIA
1 stop6h 11mUnited Airlines
Deal found 9/9$344
This Delta deal was found by Cheapflights users on 9/9. 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 10/206:00 amMIA - DAY
1 stop4h 24mDelta
Wed 10/221:29 pmDAY - MIA
1 stop5h 05mDelta
Deal found 9/9$347
This Delta deal was found by Cheapflights users on 9/9. 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.
Sun 12/146:00 amMIA - DAY
1 stop4h 34mDelta
Wed 4/16:40 pmDAY - MIA
1 stop6h 17mDelta
Deal found 9/9$348
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/236:00 amMIA - DAY
1 stop7h 44mAmerican Airlines
Fri 11/2812:48 pmDAY - MIA
1 stop8h 02mAmerican Airlines
Deal found 9/8$353

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 September 11, 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

Tue 11/25

4:11 pm-11:43 pm

1 stop7h 32m

Dayton

Sun 12/7

7:15 am-3:10 pm

1 stop7h 55m

$259

MiamiDayton

MIA - DAY

MIADAY

Miami

Wed 10/8

6:00 am-12:44 pm

1 stop6h 44m

Dayton

Wed 10/15

11:09 am-5:10 pm

1 stop6h 01m

$259

MiamiDayton

MIA - DAY

MIADAY

Miami

Thu 9/25

3:28 pm-9:57 pm

1 stop6h 29m

Dayton

Sun 9/28

6:06 am-12:45 pm

1 stop6h 39m

$289

MiamiDayton

MIA - DAY

MIADAY

Miami

Thu 9/25

7:30 am-12:29 pm

1 stop4h 59m

Dayton

Mon 9/29

4:36 pm-9:23 pm

1 stop4h 47m

$289

MiamiDayton

MIA - DAY

MIADAY

Miami

Fri 9/26

2:37 pm-11:37 pm

1 stop9h 00m

Dayton

Sun 9/28

6:06 am-12:45 pm

1 stop6h 39m

$289

MiamiDayton

MIA - DAY

MIADAY

Miami

Fri 9/26

4:01 pm-11:44 pm

1 stop7h 43m

Dayton

Mon 9/29

6:06 am-12:45 pm

1 stop6h 39m

$289

MiamiDayton

MIA - DAY

MIADAY

Miami

Thu 9/25

6:45 am-5:12 pm

2 stops10h 27m

Dayton

Mon 9/29

11:42 am-10:45 pm

2 stops11h 03m

$313

MiamiDayton

MIA - DAY

MIADAY

Miami

Wed 10/8

1:15 pm-11:43 pm

2 stops10h 28m

Dayton

Wed 10/15

9:00 am-3:11 pm

1 stop6h 11m

$344

MiamiDayton

MIA - DAY

MIADAY

Miami

Sat 9/20

6:00 am-10:22 am

1 stop4h 22m

Dayton

Sun 9/21

6:37 pm-12:23 am

1 stop5h 46m

$369

MiamiDayton

MIA - DAY

MIADAY

Miami

Fri 10/10

6:00 am-10:24 am

1 stop4h 24m

Dayton

Mon 10/13

6:44 pm-11:09 pm

1 stop4h 25m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

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, August is the cheapest month in which you can book a flight from Key Largo to Dayton (average of $325). Flying from Key Largo to Dayton in March is currently the most expensive (average of $396). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Dayton as you normally would.

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 September 11, 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
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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 $289, United Airlines can have you in Dayton from Key Largo in 6h 29m. 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, August is the cheapest month in which you can book a flight from Key Largo to Dayton (average of $325). Flying from Key Largo to Dayton in March is currently the most expensive (average of $396). 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
Troy
Springfield
Xenia
Miamisburg
Richmond

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 for Key Largo to Dayton

See prices for flight routes from nearby airports that may be better suited for you.
Fort Lauderdale to Detroit flights
Orlando to Cleveland flights
Orlando to Pittsburgh flights
Orlando to Detroit flights
Orlando to Cincinnati flights
Tampa to Cincinnati flights
Tampa to Cleveland flights
Miami to Detroit flights
Tampa to Detroit flights
Fort Lauderdale to Cleveland flights
Fort Lauderdale to Pittsburgh flights
Jacksonville to Detroit flights
Orlando to Columbus flights
Fort Myers to Cincinnati flights
Miami to Pittsburgh flights
West Palm Beach to Detroit flights
Tampa to Pittsburgh flights
Fort Lauderdale to Columbus flights
Tampa to Columbus flights
Fort Myers to Detroit flights
Fort Lauderdale to Cincinnati flights
Fort Myers to Cleveland flights
Orlando to Akron flights
Miami to Cincinnati flights
Miami to Cleveland flights
Tampa to Akron flights
West Palm Beach to Cincinnati flights
Sarasota to Akron flights
Pensacola to Cleveland flights
Miami to Columbus flights
West Palm Beach to Cleveland flights
Tampa to Dayton flights
Pensacola to Detroit flights
Orlando Sanford Intl to Cincinnati flights
Sarasota to Columbus flights
West Palm Beach to Akron flights
Fort Myers to Pittsburgh flights
Sarasota to Pittsburgh flights
Sarasota to Cleveland flights
Jacksonville to Pittsburgh flights
Pensacola to Pittsburgh flights
Fort Myers to Columbus flights
Sarasota to Detroit flights
St Petersburg to Cincinnati flights
Orlando to Dayton flights
West Palm Beach to Columbus flights
Jacksonville to Cincinnati flights
Jacksonville to Columbus flights
St Petersburg to Pittsburgh flights
Fort Lauderdale to Akron flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$380FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$296FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.