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Cheap flights from Hartford to London from £221

BDL — LON
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hartford to London

Enter your travel dates to find the best prices.

Cheapest flights from Hartford to London

Mon 16/1109:37 -
1 stop21h 23m
Wed 18/1109:00 -
2 stops19h 59m
Deal found 30/10£539
Mon 23/1119:54 -
2 stops30h 16m
Thu 26/1107:00 -
2 stops16h 42m
Deal found 2/11£543
Sun 15/1117:02 -
1 stop33h 53m
Wed 18/1106:50 -
2 stops16h 52m
Deal found 30/10£549
Sat 7/1106:00 -
1 stop10h 40m
Sat 14/1112:20 -
1 stop16h 18m
Deal found 1/11£578
Tue 1/1206:00 -
1 stop10h 40m
Tue 8/1212:20 -
1 stop16h 37m
Deal found 3/11£578
Thu 3/1217:01 -
1 stop33h 54m
Sun 6/1206:50 -
2 stops15h 43m
Deal found 31/10£579
Fri 4/1217:01 -
1 stop33h 54m
Mon 7/1206:50 -
2 stops17h 27m
Deal found 3/11£585
Tue 3/1117:55 -
1 stop12h 30m
Sat 7/1109:50 -
1 stop11h 35m
Deal found 31/10£590
Wed 11/1106:00 -
1 stop10h 40m
Tue 17/1112:20 -
1 stop16h 18m
Deal found 4/11£594
Sun 15/1106:00 -
1 stop9h 55m
Sun 22/1112:20 -
1 stop16h 37m
Deal found 3/11£604
Mon 2/1112:57 -
2 stops21h 48m
Sat 7/1110:00 -
2 stops18h 59m
Deal found 31/10£638
Thu 3/1217:55 -
1 stop9h 35m
Thu 10/1208:50 -
1 stop12h 35m
Deal found 2/11£647

Find flight deals from Hartford to London

Round-trip from

£528

One-way from

£221

Popular in

June

Cheapest in

January

Average price

£642
United Airlines
  • United Airlines
  • 5/2-7/2
  • 4 total stops
  • 44h 59m total
  • Hartford to London
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JetBlue
  • JetBlue
  • 26/11-31/12
  • 1 total stop
  • 10h 40m total
  • Hartford to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Hartford to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Mon 15/2

06:00-12:00

2 stops25h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£227

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sat 20/3

13:00-07:05

2 stops14h 05m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£227

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 4/4

06:15-06:55

2 stops19h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£227

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Tue 8/12

12:53-09:25

2 stops15h 32m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£236

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 15/11

06:00-05:55

1 stop18h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£236

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Tue 8/12

09:35-09:10

2 stops18h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£236

HartfordLondon

BDL Hartford Bradley Intl - LGW London Gatwick

BDLLGW

Hartford Bradley Intl

Tue 8/12

11:31-09:00

2 stops16h 29m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£251

HartfordLondon

BDL Hartford Bradley Intl - LGW London Gatwick

BDLLGW

Hartford Bradley Intl

Tue 8/12

17:55-20:00

1 stop21h 05m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£261

HartfordLondon

BDL Hartford Bradley Intl - LGW London Gatwick

BDLLGW

Hartford Bradley Intl

Sun 15/11

11:39-09:00

2 stops16h 21m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£282

HartfordLondon

BDL Hartford Bradley Intl - LGW London Gatwick

BDLLGW

Hartford Bradley Intl

Sun 15/11

06:00-20:35

3 stops33h 35m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£347

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 36 resultsSorted by cheapest first
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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 return price

Cheapflights Insights

Everything you need to know about your flight from Hartford to London

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

Currently, February is the cheapest month in which you can book a flight from Hartford to London (average of £596). Flying from Hartford to London in June is currently the most expensive (average of £1,034). 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 for a return flight from Hartford to London?

Airfare is below average for this route at the moment.
Hartford to London flights typically cost between £621 and £657 in February.
The cheapest return price found within the last 5 days was £528 on United Airlines (5 Feb–7 Feb).

What’s the top stopover airport for flights from Hartford to London?

Washington, D.C. (IAD) – chosen by Cheapflights users on 67% of one-stop itineraries from Hartford to London on Cheapflights.

What’s the cheapest stopover airport for flights from Hartford to London?

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £482.

What’s the fastest stopover option from Hartford to London?

Flights via Washington, D.C. (IAD) have the shortest average one-way travel time for one-stop routes: 10h 26m.

Which airport typically offers the quickest stopover for flights from Hartford to London?

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average stopover time of 1h 39m.

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

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Hartford to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Hartford to London, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,461 reviews
Check prices

Boarding

7.7

Overall

7.3

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.3
Good
10,461 reviews
United Airlines
7.3
Good
10,461 reviews
Check prices

Boarding

7.7

Overall

7.3

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • What airport do you fly from for flights from Hartford to London?

    Located just 11.9 mi from the city center, Hartford Bradley Intl is the airport most travelers will use when flying to London from Hartford. Booking flights from Bradley Intl (BDL) to London should be relatively easy as there are 0 daily outbound flights to London from 0 different airlines.

  • How long is the flight from Hartford to London?

    For as low as £615, United Airlines can have you in London from Hartford in 18h 55m. There are 3340 mi between Hartford and London. This flight may include one or multiple stops.

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

    While some choose either Hartford Bradley Intl - London Gatwick or Hartford Bradley Intl - London City, Hartford Bradley Intl - London Heathrow is the most popular 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 holiday 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, February is the cheapest month in which you can book a flight from Hartford to London (average of £596). Flying from Hartford to London in June is currently the most expensive (average of £1,034). 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

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Deals for Hartford to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Hartford to London flexibly with Cheapflights today.

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