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

Airlines like Scandinavian Airlines, United Airlines, and TAP AIR PORTUGAL fly from Connecticut to London Heathrow Airport in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 5h 30m. Airlines will cover a distance of 3438 mi. This flight may include one or multiple stops.

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.

£152+ Cheap Flights from Connecticut to London Heathrow Airport

Cheap flight deals from Connecticut to Heathrow

Enter your travel dates to find the best prices.

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Best

Direct

Last-minute

One-way

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 20 August 2026.

Tue 10/1117:35 -

2 stops35h 00m

Fri 13/1106:40 -

1 stop14h 05m

Deal found 18/8£389

Sun 6/1213:10 -

1 stop13h 00m

Sun 20/1213:00 -

1 stop13h 31m

Deal found 19/8£390

Fri 13/1117:35 -

2 stops45h 20m

Mon 16/1117:00 -

1 stop27h 45m

Deal found 17/8£390

Sat 10/1018:55 -

2 stops17h 05m

Mon 12/1010:20 -

2 stops34h 20m

Deal found 18/8£392

Thu 19/1117:35 -

2 stops40h 00m

Sun 22/1113:55 -

2 stops30h 50m

Deal found 19/8£393

Fri 6/1111:55 -

1 stop13h 35m

Thu 19/1113:00 -

1 stop11h 06m

Deal found 17/8£393

Fri 25/918:55 -

1 stop13h 40m

Sun 27/906:40 -

2 stops15h 20m

Deal found 17/8£393

Fri 2/1018:55 -

2 stops37h 00m

Mon 5/1006:40 -

1 stop15h 20m

Deal found 19/8£394

Wed 11/1115:30 -

1 stop12h 00m

Fri 13/1113:00 -

1 stop13h 31m

Deal found 17/8£396

Sun 8/1113:10 -

1 stop13h 00m

Fri 13/1111:10 -

1 stop11h 53m

Deal found 17/8£398

Wed 9/1219:25 -

1 stop10h 25m

Tue 15/1212:15 -

1 stop10h 45m

Deal found 17/8£398

Sat 7/1113:10 -

1 stop13h 00m

Wed 18/1113:00 -

1 stop13h 31m

Deal found 17/8£398

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 20 August 2026.

Mon 7/1217:35 -

2 stops20h 15m

Mon 11/119:30 -

1 stop25h 15m

Deal found 18/8£477

Tue 3/1100:10 -

1 stop16h 25m

Sun 8/1106:00 -

2 stops21h 00m

Deal found 16/8£537

Fri 9/1023:55 -

Nonstop7h 10m

Sun 11/1011:45 -

1 stop10h 20m

Deal found 19/8£538

Sun 15/1110:44 -

2 stops16h 11m

Tue 17/1106:50 -

2 stops16h 28m

Deal found 15/8£559

Tue 6/1018:10 -

Nonstop7h 15m

Mon 19/1007:30 -

1 stop16h 40m

Deal found 17/8£594

Sat 5/920:15 -

Nonstop7h 35m

Wed 9/906:30 -

1 stop11h 02m

Deal found 19/8£600

Sun 15/1106:00 -

1 stop9h 45m

Tue 17/1112:20 -

1 stop16h 13m

Deal found 16/8£660

Tue 10/1110:25 -

1 stop15h 10m

Thu 19/1115:40 -

1 stop13h 15m

Deal found 18/8£660

Wed 9/918:55 -

1 stop16h 05m

Tue 22/906:40 -

2 stops15h 20m

Deal found 19/8£511

Tue 17/1117:02 -

2 stops33h 08m

Fri 20/1106:50 -

2 stops19h 57m

Deal found 18/8£566

Sat 29/810:55 -

1 stop18h 45m

Mon 31/806:15 -

1 stop20h 45m

Deal found 19/8£577

Wed 4/1113:20 -

2 stops17h 05m

Wed 11/1106:00 -

1 stop19h 05m

Deal found 18/8£590

Thu 1/1019:15 -

Nonstop7h 05m

Tue 6/1010:20 -

1 stop13h 50m

Deal found 18/8£594

Thu 24/918:00 -

Nonstop7h 20m

Fri 2/1008:55 -

1 stop11h 55m

Deal found 19/8£600

Fri 4/917:45 -

2 stops14h 50m

Fri 11/921:05 -

2 stops21h 10m

Deal found 16/8£553

Tue 15/917:35 -

Nonstop7h 20m

Mon 21/912:10 -

1 stop13h 05m

Deal found 18/8£592

Thu 5/1122:00 -

1 stop14h 30m

Mon 9/1118:30 -

2 stops32h 24m

Deal found 19/8£594

Mon 5/1006:25 -

1 stop9h 20m

Mon 19/1011:55 -

1 stop16h 49m

Deal found 15/8£660

Tue 12/108:05 -

Nonstop6h 55m

Thu 21/107:30 -

1 stop16h 35m

Deal found 19/8£601

Sun 25/1023:20 -

Nonstop7h 10m

Mon 16/1116:35 -

Nonstop8h 25m

Deal found 15/8£605

Thu 24/908:15 -

Nonstop6h 55m

Fri 25/911:45 -

Nonstop8h 15m

Deal found 18/8£605

Wed 4/1118:30 -

2 stops13h 25m

Wed 11/1121:05 -

2 stops21h 20m

Deal found 18/8£559

Sun 13/906:40 -

1 stop9h 05m

Fri 18/911:55 -

1 stop17h 14m

Deal found 16/8£660

Sat 17/1020:30 -

1 stop29h 00m

Sat 24/1007:25 -

2 stops16h 36m

Deal found 16/8£603

Mon 12/1018:59 -

1 stop13h 16m

Sun 6/1206:30 -

2 stops15h 56m

Deal found 16/8£610

Tue 6/1011:24 -

1 stop14h 51m

Wed 21/1006:30 -

2 stops22h 02m

Deal found 15/8£638

Thu 1/1006:40 -

1 stop9h 05m

Thu 8/1011:55 -

1 stop17h 08m

Deal found 17/8£660

Tue 1/919:50 -

Nonstop7h 30m

Thu 17/910:25 -

Nonstop8h 20m

Deal found 15/8£605

Fri 6/1113:59 -

1 stop12h 51m

Thu 12/1108:40 -

2 stops13h 46m

Deal found 16/8£612

Mon 19/1013:59 -

2 stops14h 21m

Sat 24/1014:20 -

2 stops36h 07m

Deal found 19/8£623

Find flight deals from Connecticut to Heathrow

Round-trip from	£389
One-way from	£152
Popular in	June
Cheapest in	January
Average price	£772

Scandinavian Airlines
10/11-13/11
3 total stops
49h 05m total
Connecticut to London

Search Deals

British Airways
24/11
1 total stop
12h 16m total
Connecticut to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£66 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Mon 7/12

17:35-18:50

2 stops20h 15m

London Heathrow

Mon 11/1

19:30-15:45

1 stop25h 15m

£477

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 9/9

18:55-16:00

1 stop16h 05m

London Heathrow

Tue 22/9

06:40-17:00

2 stops15h 20m

£511

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Tue 3/11

00:10-21:35

1 stop16h 25m

London Heathrow

Sun 8/11

06:00-22:00

2 stops21h 00m

£537

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Fri 9/10

23:55-12:05

Nonstop7h 10m

London Heathrow

Sun 11/10

11:45-17:05

1 stop10h 20m

£538

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Fri 4/9

17:45-13:35

2 stops14h 50m

London Heathrow

Fri 11/9

21:05-13:15

2 stops21h 10m

£553

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 15/11

10:44-07:55

2 stops16h 11m

London Heathrow

Tue 17/11

06:50-18:18

2 stops16h 28m

£559

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Wed 4/11

18:30-12:55

2 stops13h 25m

London Heathrow

Wed 11/11

21:05-13:25

2 stops21h 20m

£559

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Tue 17/11

17:02-07:10

2 stops33h 08m

London Heathrow

Fri 20/11

06:50-21:47

2 stops19h 57m

£566

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Sat 29/8

10:55-10:40

1 stop18h 45m

London Heathrow

Mon 31/8

06:15-22:00

1 stop20h 45m

£577

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 4/11

13:20-11:25

2 stops17h 05m

London Heathrow

Wed 11/11

06:00-20:05

1 stop19h 05m

£590

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 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.

JFK-LHR

LGA-LHR

EWR-LHR

BDL-LHR

PVD-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

JFK-LHR

LGA-LHR

EWR-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 £467). Flying from Connecticut to London Heathrow Airport in June is currently the most expensive (average of £957). 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 £592 and £839 in November.
The cheapest return price found within the last 5 days was £559 on United Airlines (15 Nov–17 Nov).

Related info for your journey

How long is the flight from Connecticut to London Heathrow Airport?
Airlines like Scandinavian Airlines, United Airlines, and TAP AIR PORTUGAL fly from Connecticut to London Heathrow Airport in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 5h 30m. Airlines will cover a distance of 3438 mi. This flight may include one or multiple stops.
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 £467). Flying from Connecticut to London Heathrow Airport in June is currently the most expensive (average of £957). 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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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 £152

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 24/11. 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 20 August 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 20 August 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 20 August 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 20 August 2026.

Direct flights from Connecticut to HeathrowExplore direct flight options from Connecticut to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Explore direct flight options from Connecticut to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Last-minute flights from Connecticut to HeathrowDiscover last-minute flight deals from Connecticut to Heathrow. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Connecticut to Heathrow. Data last updated 20 August 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 20 August 2026.

Search for one-way flight options from Connecticut to Heathrow. Find affordable one-way fares based on user searches. Data last updated 20 August 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 £592 and £839 in November.The cheapest return price found within the last 5 days was £559 on United Airlines (15 Nov–17 Nov).

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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Direct flights to England

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Search flights from Connecticut to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 August 2026.

Connecticut and Heathrow flights

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How does Cheapflights help users find flights from 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 20 August 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 20 August 2026.

Direct flights from Connecticut to Heathrow
Explore direct flight options from Connecticut to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Last-minute flights from Connecticut to Heathrow
Discover last-minute flight deals from Connecticut to Heathrow. Data last updated 20 August 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 20 August 2026.

Connecticut to London Heathrow Airport flights typically cost between £592 and £839 in November.
The cheapest return price found within the last 5 days was £559 on United Airlines (15 Nov–17 Nov).