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Cheap flights from Connecticut to London Heathrow Airport from £138

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — LHR
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Connecticut to Heathrow

Enter your travel dates to find the best prices.

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 26 January 2026.

Tue 10/319:10
JFK
-
LHR
1 stop14h 55m
Austrian Airlines
Tue 24/306:00
LHR
-
JFK
1 stop13h 15m
Austrian Airlines
Deal found 24/1£341
Tue 24/210:15
JFK
-
LHR
Nonstop6h 55m
British Airways
Mon 2/316:25
LHR
-
JFK
Nonstop8h 10m
British Airways
Deal found 26/1£341
Mon 23/223:45
JFK
-
LHR
1 stop15h 20m
LEVEL
Mon 2/320:50
LHR
-
JFK
1 stop30h 10m
LEVEL
Deal found 26/1£342
Sun 25/119:29
JFK
-
LHR
1 stop11h 31m
British Airways
Sun 1/217:00
LHR
-
JFK
Nonstop8h 05m
British Airways
Deal found 24/1£343
Sun 15/322:00
JFK
-
LHR
1 stop14h 20m
Multiple Airlines
Mon 23/319:25
LHR
-
JFK
1 stop23h 50m
Multiple Airlines
Deal found 24/1£344
Wed 11/317:25
JFK
-
LHR
1 stop10h 40m
Multiple Airlines
Wed 25/306:00
LHR
-
JFK
1 stop13h 15m
Multiple Airlines
Deal found 24/1£344
Mon 26/122:00
JFK
-
LHR
1 stop19h 40m
TAP AIR PORTUGAL
Mon 2/218:30
LHR
-
JFK
1 stop30h 35m
TAP AIR PORTUGAL
Deal found 24/1£345
Fri 17/423:25
JFK
-
LHR
1 stop15h 40m
LEVEL
Thu 30/420:50
LHR
-
JFK
1 stop29h 50m
LEVEL
Deal found 23/1£346
Thu 19/216:25
JFK
-
LHR
1 stop10h 40m
SWISS
Wed 25/213:45
LHR
-
JFK
1 stop28h 20m
SWISS
Deal found 23/1£346
Thu 5/218:10
JFK
-
LHR
1 stop19h 30m
Austrian Airlines
Tue 17/206:00
LHR
-
JFK
1 stop13h 15m
Austrian Airlines
Deal found 24/1£347
Tue 3/321:00
JFK
-
LHR
1 stop14h 20m
SWISS
Wed 11/306:00
LHR
-
JFK
1 stop12h 05m
SWISS
Deal found 24/1£348
Fri 30/116:50
JFK
-
LHR
1 stop13h 30m
Multiple Airlines
Sun 1/209:00
LHR
-
JFK
1 stop12h 40m
Multiple Airlines
Deal found 26/1£349

Find flight deals from Connecticut to Heathrow

Keep the following information in mind while searching for Connecticut to Heathrow flight deals. Data was last updated 26 January 2026.

Round-trip from

£341

One-way from

£138

Popular in

June

Cheapest in

January

Average price

£531
Austrian Airlines
  • Austrian Airlines
  • 10/3-24/3
  • 2 total stops
  • 28h 10m total
  • Connecticut to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 16/3
  • 1 total stop
  • 19h 40m total
  • Connecticut to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Connecticut to Heathrow 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 858,174 searches. Data last updated 26 January 2026.
Use the filters below to find and compare flights from Connecticut to London Heathrow Airport that are best for you.

Fly from

Connecticut

Fly to

Heathrow

Route

Depart

Return

Price

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 20/3

11:15-22:10

Nonstop6h 55m

London Heathrow

Tue 24/3

10:20-20:05

1 stop13h 45m

£363

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 16/3

14:29-09:15

1 stop14h 46m

London Heathrow

Tue 31/3

10:20-19:10

1 stop13h 50m

£366

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 11/3

19:30-06:20

Nonstop6h 50m

London Heathrow

Wed 18/3

07:30-20:05

1 stop16h 35m

£370

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 19/2

13:00-20:35

1 stop26h 35m

London Heathrow

Mon 23/2

14:50-13:55

1 stop28h 05m

£373

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 25/2

22:00-10:25

Nonstop7h 25m

London Heathrow

Sun 1/3

09:05-13:55

1 stop33h 50m

£373

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 6/3

10:05-07:10

1 stop16h 05m

London Heathrow

Sun 15/3

09:00-14:05

1 stop33h 05m

£374

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 8/3

10:05-07:10

1 stop17h 05m

London Heathrow

Mon 23/3

12:05-14:05

1 stop30h 00m

£374

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 15/2

10:05-07:10

1 stop16h 05m

London Heathrow

Wed 18/2

09:00-16:40

1 stop12h 40m

£374

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 11/3

10:05-07:10

1 stop17h 05m

London Heathrow

Sun 15/3

09:00-14:05

1 stop33h 05m

£374

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 11/5

18:20-06:25

Nonstop7h 05m

London Heathrow

Mon 18/5

07:30-19:10

1 stop16h 40m

£374

Flights are sorted by cheapest return flights first.

Deals found on 24/1

Showing 1-10 of 60 results
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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.
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

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

Currently, October is the cheapest month in which you can book a flight from Connecticut to London Heathrow Airport (average of £12). Flying from Connecticut to London Heathrow Airport in July is currently the most expensive (average of £627). 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?

Related info for your journey

Find useful and relevant information for your journey from Connecticut to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like Finnair, United Airlines, and Virgin Atlantic fly from Connecticut to London Heathrow Airport in about 6h 55m. The time it takes to get you to your destination can typically vary by up to 6h 55m. 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, October is the cheapest month in which you can book a flight from Connecticut to London Heathrow Airport (average of £12). Flying from Connecticut to London Heathrow Airport in July is currently the most expensive (average of £627). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Watford
Colchester
Guildford
Swindon
Chelmsford
Bedford
Crawley
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Connecticut to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
LaGuardia to Heathrow flights
Newark to Gatwick flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to London City flights
Dallas/Fort Worth to Heathrow flights
Baltimore to Heathrow flights
John F Kennedy Intl to Stansted flights
LaGuardia to Gatwick flights
Seattle to Heathrow flights
Atlanta to Heathrow flights
Boston to Gatwick flights
Orlando to Heathrow flights
Miami to Heathrow flights
Hobby to Heathrow flights
Denver to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Newark to Stansted flights
Boston to London City flights
Newark to London City flights
Newark to Luton flights
Philadelphia to Heathrow flights
Los Angeles to Gatwick flights
O'Hare Intl to Gatwick flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
Minneapolis to Heathrow flights
San Francisco to Gatwick flights
O'Hare Intl to London City flights
Los Angeles to Stansted flights
Boston to Stansted flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
O'Hare Intl to Stansted flights
Austin to Heathrow flights
Tampa to Heathrow flights
Detroit to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Charlotte to Heathrow flights
San Francisco to London City flights

Fly with Cheapflights

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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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