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$410+ Cheap flights from Hartford (BDL) to London (LON)

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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — LON
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Hartford Bradley Intl to London are usually found in January or April, booked 57 days in advance, depart on a Monday or Sunday and return on a Friday

Cheap flight deals from Hartford to London

Discover tips and strategies to find the most affordable flight options for your journey from Hartford (BDL) to London (LON). 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$618
(Kiwi.com)

One-way from

$423
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$759
Provider with most accurate pricing for Hartford Bradley Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Hartford Bradley Intl-London (LON) flights.
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From Hartford Bradley Intl to London (LON)
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One-way flight from Hartford Bradley Intl to London (LON)
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Highest demand for flights based on searches. 13% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Hartford to London

Cheapest flights from Hartford to London
Explore the most affordable flight options available from Hartford to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/188:14 pmBDL - LGW
1 stop32h 46mMultiple Airlines
Sat 5/312:00 pmLGW - BDL
1 stop15h 25mMultiple Airlines
Deal found 4/16$642
This JetBlue deal was found by Cheapflights users on 4/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:30 amBDL - LHR
1 stop9h 15mJetBlue
Thu 10/911:55 amLHR - BDL
1 stop15h 10mJetBlue
Deal found 4/17$744
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sun 9/710:23 amBDL - LHR
1 stop19h 17mUnited Airlines
Thu 9/189:30 amLHR - BDL
2 stops40h 52mUnited Airlines
Deal found 4/17$763
This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:05 amBDL - LHR
1 stop19h 10mDelta
Tue 5/138:40 amLHR - BDL
2 stops19h 15mDelta
Deal found 4/17$772
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:15 pmBDL - LHR
1 stop12h 55mKLM
Thu 5/221:05 pmLHR - BDL
1 stop14h 11mKLM
Deal found 4/17$786
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:44 amBDL - LGW
2 stops16h 51mAmerican Airlines
Tue 5/2010:40 amLGW - BDL
2 stops18h 13mAmerican Airlines
Deal found 4/17$795
This Air France deal was found by Cheapflights users on 4/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/139:35 amBDL - LGW
2 stops19h 25mAir France
Sun 8/3112:00 pmLGW - BDL
2 stops15h 55mAir France
Deal found 4/17$799
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/297:54 pmBDL - LHR
2 stops29h 36mMultiple Airlines
Sun 10/126:30 amLHR - BDL
2 stops22h 20mMultiple Airlines
Deal found 4/17$815
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1410:31 amBDL - LHR
3 stops14h 59mAir Canada
Tue 5/208:30 amLHR - BDL
3 stops20h 29mAir Canada
Deal found 4/17$845
This lastminute.com deal was found by Cheapflights users on 4/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/56:05 pmBDL - LHR
1 stop11h 15mAer Lingus
Mon 5/199:50 amLHR - BDL
1 stop11h 45mAer Lingus
Deal found 4/17$884
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:52 pmBDL - LHR
2 stops14h 48mLufthansa
Wed 5/710:50 amLHR - BDL
2 stops18h 09mLufthansa
Deal found 4/17$900
This StudentUniverse deal was found by Cheapflights users on 4/17. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/16:06 pmBDL - LHR
1 stop13h 09mFinnair
Sat 8/162:25 pmLHR - BDL
1 stop14h 39mFinnair
Deal found 4/17$939

Cheapflights Fare Finder

Customize your flight search to find flights from Hartford to London 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 April 17, 2025.
Use the filters below to find and compare flights from Hartford to London that are best for you.

Fly from

Hartford

Fly to

London

Route

Depart

Return

Price

HartfordLondon

BDL - LGW

BDLLGW

Hartford Bradley Intl

Sun 5/18

8:14 pm-10:00 am

1 stop32h 46m

London Gatwick

Sat 5/31

2:00 pm-12:25 am

1 stop15h 25m

$618

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Wed 5/7

8:22 am-6:45 am

1 stop17h 23m

London Heathrow

Tue 5/13

8:40 am-11:33 pm

2 stops19h 53m

$696

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Wed 5/14

2:59 pm-11:10 am

1 stop15h 11m

London Heathrow

Thu 5/22

1:05 pm-10:16 pm

1 stop14h 11m

$718

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Fri 9/26

6:30 am-8:45 pm

1 stop9h 15m

London Heathrow

Thu 10/9

11:55 am-10:05 pm

1 stop15h 10m

$743

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Thu 5/15

6:00 am-6:20 am

1 stop19h 20m

London Heathrow

Thu 5/22

8:40 am-11:59 pm

2 stops20h 19m

$760

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Wed 5/7

10:31 am-6:30 am

2 stops14h 59m

London Heathrow

Tue 5/13

8:30 am-11:59 pm

3 stops20h 29m

$792

HartfordLondon

BDL - LGW

BDLLGW

Hartford Bradley Intl

Wed 5/14

8:44 am-8:10 am

2 stops18h 26m

London Gatwick

Wed 5/21

12:20 pm-11:53 pm

2 stops16h 33m

$795

HartfordLondon

BDL - LGW

BDLLGW

Hartford Bradley Intl

Wed 8/13

9:35 am-10:00 am

2 stops19h 25m

London Gatwick

Sun 8/31

12:00 pm-10:55 pm

2 stops15h 55m

$799

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Wed 5/7

10:31 am-6:30 am

3 stops14h 59m

London Heathrow

Tue 5/13

8:30 am-11:59 pm

3 stops20h 29m

$799

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Tue 5/13

2:59 pm-11:10 am

1 stop15h 11m

London Heathrow

Mon 5/19

3:15 pm-11:59 pm

1 stop13h 44m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 46 results
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Compare providers for flights from Hartford to London

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 Hartford to London in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 Hartford-London flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Hartford-London flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Hartford-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hartford-London flights, Cheapflights users trust AranGrant the most. AranGrant 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 Hartford-London 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 Hartford to London

Have a flexible travel schedule? Discover the best time to fly to London from Hartford 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 Hartford to London

How far ahead should I book a flight from Hartford to London?

Use this chart to determine the optimal time to book a round-trip flight from Hartford to London. Price data was last updated on April 11, 2025.

The price you pay for your flight from Hartford to London may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Hartford to London?

Currently, November is the cheapest month in which you can book a flight from Hartford to London (average of $661). Flying from Hartford to London in June is currently the most expensive (average of $1,110). 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 BDL to LON?

Find hourly flight availability from Hartford to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

One of the essential ways to save on airfare from Hartford to London is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 5% on airfare.

What is the cheapest day to fly from Hartford to London?

Use this chart to determine the cheapest time to fly round-trip from Hartford to London. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Hartford to London flight should consider departing on Sunday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated April 17, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Hartford to London. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,327 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Hartford to London. 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 Hartford to London?

    Most people fly from Hartford Bradley Intl (BDL) if they book a flight from Hartford to London. On average, Bradley Intl has 0 outbound flights to London per day from 4 airlines. Hartford Bradley Intl is conveniently located just 11.9 mi from Hartford’s city center.

  • What are the cheapest airlines flying from Hartford to London round-trip?

    Our cheapest airline available from Hartford to London is Delta. Our recent data shows that you can find tickets from as low as $696 on this airline. Additional options worth looking into are KLM and JetBlue, starting at $718 and $743 round-trip. Users have found that Delta is 22% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Hartford to London one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $436. However, be on the lookout for offers from Aer Lingus and KLM, as they are both options that can get you from Hartford to London for a low price.

  • What are the most popular routes from Hartford to London?

    Most travelers choose Hartford Bradley Intl - London Heathrow, Hartford Bradley Intl - London City or Hartford Bradley Intl - London Gatwick when deciding on the best route from Hartford to London.

  • Can I find deals for flights from Hartford to London that include hotel bookings?

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

  • How can I find direct flights from Hartford to London?

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

  • Can I find deals for business class flights from Hartford to London?

    Yes. Cheapflights offers flight deals from Hartford to London 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 Hartford to London?

    Currently, November is the cheapest month in which you can book a flight from Hartford to London (average of $661). Flying from Hartford to London in June is currently the most expensive (average of $1,110). 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 Hartford?

Book flights to Hartford if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Wembley
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Milton Keynes
Chelmsford
Sutton

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Alternative routes for Hartford to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Hartford to London

Discover the top 4 airlines that operate flights from Hartford to London. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$569Average$868FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$634Average$837FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$696Average$940FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$704Average$944FlexibilityNo cancel feeOn-time71%

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