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$641+ Cheap flights from Dayton (DAY) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LHR
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheap 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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$642
(Delta)

Popular in

February

Cheapest in

October

Average price

$754
Provider with most accurate pricing for Dayton-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Dayton-London Heathrow flights.
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From Dayton to London Heathrow
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 14, 2025.

This United Airlines deal was found by Cheapflights users on 10/14. 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 11/2810:27 amDAY - LHR
2 stops17h 53mUnited Airlines
Fri 12/56:50 amLHR - DAY
2 stops18h 19mUnited Airlines
Deal found 10/14$641
This Delta deal was found by Cheapflights users on 10/13. 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 11/146:34 pmDAY - LHR
1 stop12h 06mDelta
Tue 11/1811:30 amLHR - DAY
2 stops16h 40mDelta
Deal found 10/13$642
This Virgin Atlantic deal was found by Cheapflights users on 10/14. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 amDAY - LHR
1 stop20h 50mVirgin Atlantic
Fri 12/56:30 amLHR - DAY
2 stops16h 17mVirgin Atlantic
Deal found 10/14$643
This Delta deal was found by Cheapflights users on 10/13. 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 10/201:29 pmDAY - LHR
1 stop16h 41mDelta
Mon 10/278:55 amLHR - DAY
1 stop17h 49mDelta
Deal found 10/13$650
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/112:10 pmDAY - LHR
1 stop10h 45mMultiple Airlines
Tue 11/186:50 amLHR - DAY
2 stops15h 16mMultiple Airlines
Deal found 10/12$660
This KLM deal was found by Cheapflights users on 10/12. 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.
Tue 11/111:22 pmDAY - LHR
2 stops13h 43mKLM
Tue 11/186:30 amLHR - DAY
2 stops16h 17mKLM
Deal found 10/12$661
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/189:15 amDAY - LHR
1 stop15h 40mUnited Airlines
Sun 11/236:50 amLHR - DAY
2 stops17h 11mUnited Airlines
Deal found 10/12$669
This KLM deal was found by Cheapflights users on 10/12. 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.
Tue 11/184:10 pmDAY - LHR
1 stop11h 50mKLM
Sun 11/2312:30 pmLHR - DAY
1 stop15h 40mKLM
Deal found 10/12$699
This KLM deal was found by Cheapflights users on 10/13. 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.
Fri 11/141:22 pmDAY - LHR
2 stops13h 43mKLM
Tue 11/186:30 amLHR - DAY
2 stops16h 17mKLM
Deal found 10/13$700
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Sat 11/82:10 pmDAY - LHR
2 stops36h 00mUnited Airlines
Tue 11/186:50 amLHR - DAY
2 stops18h 25mUnited Airlines
Deal found 10/13$719

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 October 14, 2025.
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

Fri 11/28

10:27 am-9:20 am

2 stops17h 53m

London Heathrow

Fri 12/5

6:50 am-8:09 pm

2 stops18h 19m

$641

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Fri 11/14

6:34 pm-11:40 am

1 stop12h 06m

London Heathrow

Tue 11/18

11:30 am-11:10 pm

2 stops16h 40m

$642

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Fri 11/28

6:00 am-7:50 am

1 stop20h 50m

London Heathrow

Fri 12/5

6:30 am-5:47 pm

2 stops16h 17m

$643

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 11/5

1:29 pm-7:50 am

1 stop13h 21m

London Heathrow

Sat 11/15

12:30 pm-11:10 pm

1 stop15h 40m

$650

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Fri 11/14

4:10 pm-9:00 am

1 stop11h 50m

London Heathrow

Tue 11/18

8:55 am-5:47 pm

1 stop13h 52m

$650

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Mon 1/12

2:04 pm-5:55 am

1 stop10h 51m

London Heathrow

Mon 1/19

6:50 am-5:03 pm

2 stops15h 13m

$677

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Fri 11/14

1:22 pm-8:05 am

2 stops13h 43m

London Heathrow

Tue 11/18

6:30 am-5:47 pm

2 stops16h 17m

$700

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Sat 11/8

9:15 am-7:10 am

2 stops40h 55m

London Heathrow

Tue 11/18

6:50 am-8:15 pm

2 stops18h 25m

$719

DaytonLondon

DAY - LHR

DAYLHR

Dayton

Wed 2/4

1:33 pm-6:55 am

1 stop12h 22m

London Heathrow

Wed 3/4

7:35 am-8:38 pm

2 stops18h 03m

$799

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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, August is the cheapest month in which you can book a flight from Dayton to London Heathrow Airport (average of $527). Flying from Dayton to London Heathrow Airport in June is currently the most expensive (average of $787). 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 DAY to LHR?

Find hourly flight availability from Dayton to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Dayton to London Heathrow Airport at noon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

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 October 14, 2025.
Read reviews from past customers who have flown United Airlines, American 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
8,976 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,976 reviews
United Airlines
7.4
Good
8,976 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,042 reviews
United Airlines
7.4
Good
8,976 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,456 reviews
United Airlines
7.4
Good
8,976 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 3 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 $642, United Airlines can have you in London Heathrow Airport from Dayton in 12h 06m. The distance between Dayton and London Heathrow Airport is about 3893 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.Alternate airlines to your destination round-trip include British Airways and American Airlines. United Airlines is currently priced 37% 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, August is the cheapest month in which you can book a flight from Dayton to London Heathrow Airport (average of $527). Flying from Dayton to London Heathrow Airport in June is currently the most expensive (average of $787). 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
Hounslow
Hayes
Ilford
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley

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Alternative routes for Dayton to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Dayton to Heathrow

Discover the top 3 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$630Average$1,001FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$644Average$954FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$754Average$1,147FlexibilityNo cancel feeOn-time71%

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