How long is the flight from Connecticut to London Heathrow Airport?

Airlines like United Airlines fly from Connecticut to London Heathrow Airport in about 19h 30m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3340 mi.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Connecticut to London Heathrow Airport?

The most popular route from Connecticut to London Heathrow Airport is New York John F Kennedy Intl - London Heathrow. You may also consider Newark - London Heathrow or New York LaGuardia - London Heathrow.

What is the cheapest time of day to fly from CT to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Connecticut to London Heathrow Airport as you normally would.

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

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

How can I find direct flights from Connecticut to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Connecticut 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.

£215+ Cheap Flights from Connecticut to London Heathrow Airport

Cheap flight deals from Connecticut to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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Cheapest flights from Connecticut to Heathrow
Explore the most affordable flight options available from Connecticut to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 October 2026.

Fri 4/1215:07 -

1 stop14h 43m

Sun 6/1209:00 -

2 stops19h 44m

Deal found 3/10£519

Thu 19/1106:00 -

2 stops19h 30m

Fri 20/1109:00 -

2 stops19h 59m

Deal found 7/10£525

Thu 5/1119:54 -

2 stops30h 16m

Sun 8/1107:00 -

2 stops16h 42m

Deal found 3/10£528

Thu 12/1117:02 -

1 stop33h 53m

Sun 15/1106:50 -

2 stops16h 52m

Deal found 7/10£529

Tue 17/1117:02 -

2 stops33h 08m

Fri 20/1106:50 -

2 stops22h 09m

Deal found 7/10£531

Sat 28/1117:55 -

1 stop9h 10m

Sat 12/1209:50 -

1 stop11h 35m

Deal found 7/10£570

Mon 7/1217:01 -

1 stop33h 54m

Thu 10/1206:35 -

2 stops20h 05m

Deal found 3/10£580

Sat 31/1018:55 -

1 stop10h 10m

Sat 7/1108:50 -

1 stop12h 35m

Deal found 3/10£589

Mon 12/1018:00 -

1 stop9h 05m

Mon 19/1009:50 -

1 stop11h 40m

Deal found 5/10£593

Sat 5/1206:00 -

2 stops44h 10m

Tue 8/1206:30 -

2 stops22h 14m

Deal found 7/10£599

Tue 1/1209:35 -

1 stop17h 20m

Mon 7/1211:10 -

2 stops37h 07m

Deal found 7/10£612

Mon 2/1106:00 -

1 stop19h 40m

Mon 9/1113:00 -

2 stops33h 54m

Deal found 5/10£614

Find flight deals from Connecticut to Heathrow

Round-trip from	£519
One-way from	£215
Popular in	June
Cheapest in	January
Average price	£641

United Airlines
4/12-6/12
3 total stops
34h 27m total
Connecticut to London

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Air Canada
6/1-31/12
2 total stops
20h 10m total
Connecticut to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£69 potential increase over avg. return price).

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Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

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Average for round-trip flights in October 2026

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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Thu 7/1

17:40-11:40

1 stop13h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Mon 4/1

18:44-12:00

1 stop12h 16m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£223

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 10/1

14:20-07:50

1 stop12h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£223

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Fri 27/11

11:21-11:40

1 stop19h 19m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£223

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Wed 18/11

12:57-09:55

2 stops15h 58m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£226

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Wed 18/11

09:43-07:45

1 stop17h 02m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£226

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Tue 12/1

06:00-06:40

1 stop19h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£226

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Mon 16/11

09:37-10:50

2 stops20h 13m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£226

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Mon 16/11

06:00-06:30

3 stops19h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£232

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Thu 19/11

06:00-06:30

2 stops19h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£232

Flights are sorted by cheapest return flights first.

Deals found on 6/10

Showing 1-10 of 20 resultsSorted by cheapest first

Best time to book a flight from Connecticut to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Connecticut with our price prediction graph.

BDL-LHR

Estimated return 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 Connecticut to London Heathrow Airport

USCT-LHR

BDL-LHR

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

Currently, February is the cheapest month in which you can book a flight from Connecticut to London Heathrow Airport (average of £479). Flying from Connecticut to London Heathrow Airport in June is currently the most expensive (average of £1,172). 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 Connecticut to London Heathrow Airport?

Airfare is below average for this route at the moment.

Connecticut to London Heathrow Airport flights typically cost between £631 and £857 in December.
The cheapest return price found within the last 5 days was £519 on United Airlines (4 Dec–6 Dec).

Related info for your journey

How long is the flight from Connecticut to London Heathrow Airport?
Airlines like United Airlines fly from Connecticut to London Heathrow Airport in about 19h 30m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3340 mi.
What are the most popular routes from Connecticut to London Heathrow Airport?
The most popular route from Connecticut to London Heathrow Airport is New York John F Kennedy Intl - London Heathrow. You may also consider Newark - London Heathrow or New York LaGuardia - London Heathrow.
Can I find deals for flights from Connecticut to Heathrow that include hotel bookings?
Yes. In addition to deals on Connecticut to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Connecticut to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Connecticut to Heathrow.
Can I find deals for business class flights from Connecticut to Heathrow?
Yes. Cheapflights offers flight deals from Connecticut 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 Connecticut to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Connecticut to London Heathrow Airport (average of £479). Flying from Connecticut to London Heathrow Airport in June is currently the most expensive (average of £1,172). 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.

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How does Cheapflights help users find flights from Connecticut to Heathrow?

Cheapflights makes it easy to find Connecticut to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Connecticut to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Connecticut to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Connecticut to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Connecticut to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Connecticut to Heathrow become cheaper?

Of course! You can now track prices for flights from Connecticut to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Connecticut to London Heathrow Airport from £215

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Connecticut to Heathrow

Cheapest flights from Connecticut to HeathrowExplore the most affordable flight options available from Connecticut to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 October 2026.

Explore the most affordable flight options available from Connecticut to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 October 2026.

Best flights from Connecticut to HeathrowDiscover carefully curated flight deals from Connecticut to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.

Discover carefully curated flight deals from Connecticut to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.

Last-minute flights from Connecticut to HeathrowDiscover last-minute flight deals from Connecticut to Heathrow. Data last updated 8 October 2026 and is based on user searches.

Discover last-minute flight deals from Connecticut to Heathrow. Data last updated 8 October 2026 and is based on user searches.

One-way flights from Connecticut to HeathrowSearch for one-way flight options from Connecticut to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.

Search for one-way flight options from Connecticut to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.

Find flight deals from Connecticut to Heathrow

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

Best time to book a flight from Connecticut to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Connecticut with our price prediction graph.

Cheapflights Insights

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

How much does it cost for a return flight from Connecticut to London Heathrow Airport?

Airfare is below average for this route at the moment.

Connecticut to London Heathrow Airport flights typically cost between £631 and £857 in December.The cheapest return price found within the last 5 days was £519 on United Airlines (4 Dec–6 Dec).

Related info for your journey

How long is the flight from Connecticut to London Heathrow Airport?

What are the most popular routes from Connecticut to London Heathrow Airport?

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

How can I find direct flights from Connecticut to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

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Alternative routes for Connecticut to Heathrow

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Can Cheapflights notify me if prices for flights from Connecticut to Heathrow become cheaper?

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Cheapest flights from Connecticut to Heathrow
Explore the most affordable flight options available from Connecticut to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 October 2026.

Best flights from Connecticut to Heathrow
Discover carefully curated flight deals from Connecticut to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.

Last-minute flights from Connecticut to Heathrow
Discover last-minute flight deals from Connecticut to Heathrow. Data last updated 8 October 2026 and is based on user searches.

One-way flights from Connecticut to Heathrow
Search for one-way flight options from Connecticut to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.

Connecticut to London Heathrow Airport flights typically cost between £631 and £857 in December.
The cheapest return price found within the last 5 days was £519 on United Airlines (4 Dec–6 Dec).