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Heathrow

$249+ Cheap flights from Dayton (DAY) to Heathrow (LHR)

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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LHR
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheap flight deals from Dayton to Heathrow

Cheapest flights from Dayton to Heathrow
Explore the most affordable flight options available from Dayton to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 19, 2026.

This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/189:45 am
DAY
-
LHR
1 stop16h 55m
United Airlines
Wed 3/256:35 am
LHR
-
DAY
2 stops17h 03m
United Airlines
Deal found 2/18$633
This United Airlines deal was found by Cheapflights users on 2/16. 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 3/1610:50 am
DAY
-
LHR
1 stop17h 05m
United Airlines
Mon 3/231:25 pm
LHR
-
DAY
2 stops34h 13m
United Airlines
Deal found 2/16$641
This Travelocity deal was found by Cheapflights users on 2/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:41 pm
DAY
-
LHR
1 stop13h 59m
Iberia
Tue 4/146:15 am
LHR
-
DAY
2 stops21h 03m
Iberia
Deal found 2/16$644
This Cheapflightsfares deal was found by Cheapflights users on 2/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:50 pm
DAY
-
LHR
2 stops14h 50m
Lufthansa
Tue 4/141:30 pm
LHR
-
DAY
2 stops15h 04m
Lufthansa
Deal found 2/16$647
This United Airlines deal was found by Cheapflights users on 2/17. 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 4/17:33 pm
DAY
-
LHR
1 stop10h 07m
United Airlines
Thu 4/306:50 am
LHR
-
DAY
2 stops20h 24m
United Airlines
Deal found 2/17$649
This United Airlines deal was found by Cheapflights users on 2/17. 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 5/510:28 am
DAY
-
LHR
2 stops15h 02m
United Airlines
Tue 5/196:50 am
LHR
-
DAY
2 stops16h 54m
United Airlines
Deal found 2/17$652
This United Airlines deal was found by Cheapflights users on 2/15. 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 9/810:20 am
DAY
-
LHR
1 stop15h 35m
United Airlines
Tue 9/156:55 am
LHR
-
DAY
2 stops16h 46m
United Airlines
Deal found 2/15$654
This KLM deal was found by Cheapflights users on 2/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:35 pm
DAY
-
LHR
1 stop17h 05m
KLM
Wed 3/253:50 pm
LHR
-
DAY
1 stop22h 56m
KLM
Deal found 2/18$661
This United Airlines deal was found by Cheapflights users on 2/16. 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 3/172:07 pm
DAY
-
LHR
2 stops14h 18m
United Airlines
Mon 3/238:00 am
LHR
-
DAY
2 stops16h 21m
United Airlines
Deal found 2/16$666
This United Airlines deal was found by Cheapflights users on 2/17. 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 8/127:15 am
DAY
-
LHR
1 stop18h 30m
United Airlines
Wed 8/195:50 pm
LHR
-
DAY
2 stops29h 51m
United Airlines
Deal found 2/17$667

Find flight deals from Dayton to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$633
(United Airlines)

One-way from

$249
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$846
Provider with most accurate pricing for Dayton-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-London Heathrow flights.
Search Deals
From Dayton to London Heathrow
Search Deals
One-way flight from Dayton to London Heathrow
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton to Heathrow 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 19, 2026.
Use the filters below to find and compare flights from Dayton to London Heathrow Airport that are best for you.

Fly from

Dayton

Fly to

Heathrow

Route

Depart

Return

Price

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 3/18

10:50 am-7:10 am

2 stops16h 20m

London Heathrow

Wed 3/25

6:35 am-7:38 pm

2 stops17h 03m

$636

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Mon 3/16

10:50 am-7:55 am

1 stop17h 05m

London Heathrow

Mon 3/23

1:25 pm-7:38 pm

2 stops34h 13m

$641

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 4/1

7:33 pm-10:40 am

1 stop10h 07m

London Heathrow

Thu 4/30

6:50 am-10:14 pm

2 stops20h 24m

$649

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Tue 5/5

6:25 am-6:45 am

1 stop19h 20m

London Heathrow

Tue 5/19

6:50 am-5:08 pm

2 stops15h 18m

$649

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Tue 3/17

2:07 pm-7:55 am

1 stop13h 48m

London Heathrow

Mon 3/23

8:00 am-8:21 pm

2 stops16h 21m

$666

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 8/12

7:15 am-6:45 am

1 stop18h 30m

London Heathrow

Wed 8/19

5:50 pm-6:41 pm

2 stops29h 51m

$667

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 4/1

4:17 pm-9:05 am

1 stop11h 48m

London Heathrow

Wed 4/8

9:45 am-6:10 pm

1 stop13h 25m

$675

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 4/1

2:05 pm-6:45 am

1 stop11h 40m

London Heathrow

Wed 4/8

12:15 pm-6:58 pm

1 stop11h 43m

$678

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Mon 5/18

2:55 pm-10:40 am

1 stop14h 45m

$249

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 5/13

3:17 pm-2:35 pm

2 stops18h 18m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 16 results
1
2

Compare providers for flights from Dayton to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dayton to Heathrow in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Dayton-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dayton-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dayton-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dayton-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dayton-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dayton to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dayton 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 Dayton to London Heathrow Airport

What is the cheapest month to book a flight from Dayton to London Heathrow Airport?

Currently, March is the cheapest month in which you can book a flight from Dayton to London Heathrow Airport (average of $480). Flying from Dayton to London Heathrow Airport in June is currently the most expensive (average of $759). 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.

How much does it cost to fly round-trip from Dayton to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated February 19, 2026.
Read reviews from past customers who have flown United Airlines and British Airways from Dayton to London Heathrow Airport. 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.
United Airlines
7.4
Good
9,321 reviews

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,321 reviews
United Airlines
7.4
Good
9,321 reviews

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,752 reviews
United Airlines
7.4
Good
9,321 reviews

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Dayton to Heathrow. 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 from for flights from Dayton to London Heathrow?

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

  • How long is the flight from Dayton to London Heathrow Airport?

    For as low as $636, United Airlines can have you in London Heathrow Airport from Dayton in 16h 20m. The distance between Dayton and London Heathrow Airport is about 3893 mi.

  • What are the cheapest airlines flying from Dayton to London Heathrow Airport round-trip?

    United Airlines, at $630, was found to be the cheapest airline from Dayton to London Heathrow Airport. An alternate airline flying to your destination would be British Airways. United Airlines is currently priced 32% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from Dayton to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Dayton to Heathrow 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 Dayton to London Heathrow Airport?

    Currently, March is the cheapest month in which you can book a flight from Dayton to London Heathrow Airport (average of $480). Flying from Dayton to London Heathrow Airport in June is currently the most expensive (average of $759). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Dayton to Heathrow

Discover the top 2 airlines that operate flights from Dayton to Heathrow. 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 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$630Average$949FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$644Average$929FlexibilityNo cancel feeOn-time70%

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