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

Airlines like Scandinavian Airlines, JetBlue, and United Airlines fly from Connecticut to London Heathrow Airport in about 12h 30m. The time it takes to get you to your destination can typically vary by up to 24h 30m. Airlines will cover a distance of 3440 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.

£153+ 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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Direct

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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 3 September 2026.

Mon 5/1018:55 -

1 stop21h 45m

Fri 23/1017:30 -

1 stop27h 10m

Deal found 29/8£444

Thu 15/1017:10 -

2 stops14h 45m

Thu 22/1007:05 -

1 stop13h 35m

Deal found 31/8£445

Thu 31/1216:30 -

1 stop13h 50m

Sun 3/115:00 -

1 stop12h 43m

Deal found 1/9£445

Tue 13/1017:10 -

2 stops14h 45m

Tue 20/1019:50 -

1 stop24h 50m

Deal found 29/8£445

Tue 20/1017:10 -

1 stop11h 25m

Thu 5/1121:05 -

2 stops23h 40m

Deal found 30/8£446

Mon 12/1017:10 -

2 stops14h 45m

Sat 17/1015:35 -

1 stop29h 05m

Deal found 31/8£447

Tue 13/1017:10 -

2 stops14h 45m

Wed 21/1007:05 -

1 stop13h 35m

Deal found 31/8£448

Tue 20/1017:10 -

2 stops21h 45m

Fri 6/1117:00 -

1 stop27h 45m

Deal found 30/8£449

Tue 13/1017:10 -

2 stops14h 45m

Sun 8/1121:05 -

2 stops23h 40m

Deal found 31/8£450

Sun 4/1017:10 -

1 stop11h 25m

Thu 8/1007:05 -

1 stop13h 35m

Deal found 31/8£450

Sat 10/1017:10 -

1 stop11h 25m

Sat 17/1010:35 -

1 stop34h 05m

Deal found 30/8£451

Mon 23/1121:50 -

Nonstop6h 55m

Sun 29/1119:20 -

Nonstop8h 05m

Deal found 1/9£452

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 3 September 2026.

Sun 11/1018:55 -

2 stops37h 00m

Thu 15/1007:05 -

1 stop13h 35m

Deal found 31/8£513

Tue 15/913:00 -

1 stop12h 30m

Sat 26/908:15 -

Nonstop8h 04m

Deal found 2/9£558

Mon 1/309:55 -

1 stop21h 05m

Wed 3/311:05 -

2 stops37h 19m

Deal found 31/8£559

Mon 14/1200:55 -

2 stops15h 40m

Tue 29/1206:00 -

2 stops20h 05m

Deal found 2/9£579

Thu 8/1018:10 -

Nonstop7h 15m

Thu 15/1010:20 -

1 stop13h 50m

Deal found 31/8£588

Fri 6/1108:00 -

Nonstop7h 10m

Wed 11/1106:30 -

1 stop12h 30m

Deal found 31/8£604

Wed 16/919:00 -

Nonstop7h 15m

Fri 18/912:50 -

Nonstop7h 45m

Deal found 31/8£607

Thu 22/1016:15 -

1 stop14h 05m

Fri 30/1009:00 -

1 stop12h 40m

Deal found 1/9£611

Sat 17/1015:30 -

1 stop13h 30m

Tue 27/1013:00 -

1 stop12h 30m

Deal found 2/9£614

Thu 8/1016:45 -

1 stop10h 50m

Sat 17/1014:05 -

1 stop10h 31m

Deal found 29/8£619

Fri 27/1118:30 -

Nonstop7h 00m

Thu 10/1216:25 -

Nonstop8h 10m

Deal found 2/9£627

Wed 14/1017:45 -

2 stops21h 10m

Mon 26/1010:35 -

2 stops32h 50m

Deal found 31/8£548

Wed 7/1019:15 -

Nonstop7h 05m

Sun 11/1010:20 -

1 stop13h 50m

Deal found 30/8£588

Wed 4/1122:00 -

Nonstop7h 25m

Wed 11/1112:05 -

1 stop13h 25m

Deal found 1/9£596

Thu 8/1023:55 -

Nonstop7h 10m

Sun 18/1015:50 -

Nonstop7h 55m

Deal found 29/8£609

Sat 7/1112:00 -

1 stop13h 25m

Wed 11/1111:45 -

2 stops16h 38m

Deal found 31/8£613

Sun 11/1021:03 -

Nonstop7h 27m

Thu 15/1008:40 -

1 stop13h 49m

Deal found 29/8£616

Thu 22/1022:50 -

1 stop16h 50m

Fri 30/1007:30 -

1 stop16h 35m

Deal found 2/9£593

Thu 8/1017:20 -

1 stop18h 40m

Mon 12/1021:05 -

2 stops22h 54m

Deal found 2/9£593

Wed 2/1209:25 -

Nonstop6h 55m

Tue 8/1209:00 -

1 stop16h 30m

Deal found 2/9£596

Fri 13/1116:00 -

1 stop10h 50m

Tue 17/1108:55 -

2 stops15h 38m

Deal found 2/9£613

Tue 8/1212:35 -

1 stop13h 20m

Fri 11/1209:20 -

1 stop11h 42m

Deal found 29/8£621

Tue 6/1011:24 -

1 stop20h 51m

Mon 12/1008:40 -

2 stops20h 09m

Deal found 30/8£652

Wed 21/1013:59 -

2 stops14h 21m

Mon 26/1007:05 -

3 stops17h 27m

Deal found 29/8£597

Wed 28/1019:40 -

Nonstop7h 00m

Mon 2/1110:20 -

1 stop13h 45m

Deal found 1/9£598

Wed 14/1015:40 -

3 stops25h 00m

Wed 21/1021:25 -

2 stops29h 54m

Deal found 31/8£725

Mon 14/909:45 -

Nonstop6h 50m

Mon 28/906:50 -

1 stop11h 20m

Deal found 2/9£601

Sat 3/1012:55 -

1 stop13h 15m

Sat 10/1011:30 -

2 stops17h 03m

Deal found 1/9£614

Fri 16/1006:25 -

1 stop9h 20m

Sat 31/1012:20 -

1 stop15h 18m

Deal found 28/8£651

Tue 6/1014:00 -

2 stops15h 20m

Mon 19/1006:30 -

2 stops14h 59m

Deal found 1/9£654

Find flight deals from Connecticut to Heathrow

Round-trip from	£444
One-way from	£153
Popular in	June
Cheapest in	January
Average price	£677

Scandinavian Airlines
5/10-23/10
2 total stops
48h 55m total
Connecticut to London

Search Deals

British Airways
16/2
1 total stop
12h 18m total
Connecticut to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£75 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 September 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

Sun 11/10

18:55-12:55

2 stops37h 00m

London Heathrow

Thu 15/10

07:05-15:40

1 stop13h 35m

£513

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Wed 14/10

17:45-19:55

2 stops21h 10m

London Heathrow

Mon 26/10

10:35-15:25

2 stops32h 50m

£548

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Tue 15/9

13:00-06:30

1 stop12h 30m

London Heathrow

Sat 26/9

08:15-11:19

Nonstop8h 04m

£558

ProvidenceLondon

PVD Providence-TFGreen - LHR London Heathrow

PVDLHR

Providence-TFGreen

Mon 1/3

09:55-12:00

1 stop21h 05m

London Heathrow

Wed 3/3

11:05-19:24

2 stops37h 19m

£559

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Mon 14/12

00:55-21:35

2 stops15h 40m

London Heathrow

Tue 29/12

06:00-21:05

2 stops20h 05m

£579

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Thu 8/10

18:10-06:25

Nonstop7h 15m

London Heathrow

Thu 15/10

10:20-19:10

1 stop13h 50m

£588

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 7/10

19:15-07:20

Nonstop7h 05m

London Heathrow

Sun 11/10

10:20-19:10

1 stop13h 50m

£588

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Thu 22/10

22:50-20:40

1 stop16h 50m

London Heathrow

Fri 30/10

07:30-20:05

1 stop16h 35m

£593

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Thu 8/10

17:20-17:00

1 stop18h 40m

London Heathrow

Mon 12/10

21:05-14:59

2 stops22h 54m

£593

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Wed 4/11

22:00-10:25

Nonstop7h 25m

London Heathrow

Wed 11/11

12:05-20:30

1 stop13h 25m

£596

Flights are sorted by cheapest return flights first.

Deals found on 2/9

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

PVD-LHR

EWR-LHR

LGA-LHR

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

JFK-LHR

PVD-LHR

EWR-LHR

LGA-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 £470). Flying from Connecticut to London Heathrow Airport in June is currently the most expensive (average of £962). 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 typical for this route at the moment.

Connecticut to London Heathrow Airport flights typically cost between £542 and £856 in September.
The cheapest return price found within the last 5 days was £586 on Lufthansa (29 Sept–6 Oct).

Related info for your journey

How long is the flight from Connecticut to London Heathrow Airport?
Airlines like Scandinavian Airlines, JetBlue, and United Airlines fly from Connecticut to London Heathrow Airport in about 12h 30m. The time it takes to get you to your destination can typically vary by up to 24h 30m. Airlines will cover a distance of 3440 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 £470). Flying from Connecticut to London Heathrow Airport in June is currently the most expensive (average of £962). 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 £153

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 16/2. 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 3 September 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 3 September 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 3 September 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 3 September 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 3 September 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 3 September 2026.

Last-minute flights from Connecticut to HeathrowDiscover last-minute flight deals from Connecticut to Heathrow. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from Connecticut to Heathrow. Data last updated 3 September 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 3 September 2026.

Search for one-way flight options from Connecticut to Heathrow. Find affordable one-way fares based on user searches. Data last updated 3 September 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 typical for this route at the moment.

Connecticut to London Heathrow Airport flights typically cost between £542 and £856 in September.The cheapest return price found within the last 5 days was £586 on Lufthansa (29 Sept–6 Oct).

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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Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

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 3 September 2026.

Connecticut and Heathrow flights

Browse other Connecticut and Heathrow flight options. Last updated on 3 September 2026.

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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 3 September 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 3 September 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 3 September 2026.

Last-minute flights from Connecticut to Heathrow
Discover last-minute flight deals from Connecticut to Heathrow. Data last updated 3 September 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 3 September 2026.

Connecticut to London Heathrow Airport flights typically cost between £542 and £856 in September.
The cheapest return price found within the last 5 days was £586 on Lufthansa (29 Sept–6 Oct).