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Cheap flights from Connecticut to London Heathrow Airport from £129

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — LHR
6 Jul — 13 Jul1
1 adult

Cheap flight deals from Connecticut to Heathrow

Keep the following information in mind while searching for Connecticut to Heathrow flight deals. Data was last updated 1 July 2025.

Round-trip from

£359

One-way from

£129
Air Canada
  • Air Canada
  • 6/8-27/8
  • 2 total stops
  • 20h 05m total
  • Connecticut to London
Search Deals
Icelandair
  • Icelandair
  • 26/8
  • 1 total stop
  • 10h 30m total
  • Connecticut to London
Search Deals

Find flight deals from Connecticut to Heathrow

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 1 July 2025.

Wed 6/819:10LGA - LHR
1 stop9h 50mAir Canada
Wed 27/809:30LHR - LGA
1 stop10h 15mAir Canada
Deal found 30/6£359
Thu 14/820:25JFK - LHR
1 stop10h 30mIcelandair
Thu 28/813:05LHR - JFK
1 stop14h 05mIcelandair
Deal found 30/6£360
Mon 3/1110:15JFK - LHR
Nonstop6h 55mIberia
Mon 17/1108:25LHR - JFK
1 stop18h 35mIberia
Deal found 1/7£362
Sun 17/815:00LGA - LHR
1 stop10h 45mVirgin Atlantic
Mon 25/809:40LHR - LGA
1 stop11h 50mVirgin Atlantic
Deal found 30/6£362
Sun 20/723:25JFK - LHR
Nonstop7h 00mVirgin Atlantic
Sun 14/912:55LHR - JFK
Nonstop8h 05mVirgin Atlantic
Deal found 1/7£362
Fri 19/909:45JFK - LHR
Nonstop6h 55mAmerican Airlines
Fri 26/907:45LHR - JFK
1 stop12h 00mAmerican Airlines
Deal found 1/7£363
Wed 20/819:29JFK - LHR
Nonstop7h 16mBritish Airways
Mon 1/917:00LHR - JFK
Nonstop7h 55mBritish Airways
Deal found 1/7£364
Wed 10/909:00JFK - LHR
1 stop19h 35mUnited Airlines
Mon 15/908:40LHR - JFK
1 stop12h 55mUnited Airlines
Deal found 29/6£365
Tue 12/818:29JFK - LHR
1 stop9h 36mAer Lingus
Sat 23/807:40LHR - JFK
1 stop10h 45mAer Lingus
Deal found 30/6£366
Thu 21/819:29LGA - LHR
1 stop30h 26mUnited Airlines
Thu 28/809:30LHR - LGA
1 stop27h 32mUnited Airlines
Deal found 30/6£370
Wed 8/1017:45LGA - LHR
1 stop10h 50mMultiple Airlines
Sat 11/1009:30LHR - LGA
1 stop15h 07mMultiple Airlines
Deal found 29/6£371
Wed 27/815:30LGA - LHR
1 stop10h 00mLufthansa
Wed 3/914:05LHR - LGA
1 stop10h 32mLufthansa
Deal found 30/6£372

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 1 July 2025.
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

LGA - LHR

LGALHR

New York LaGuardia

Wed 6/8

19:10-10:00

1 stop9h 50m

London Heathrow

Wed 27/8

09:30-14:45

1 stop10h 15m

£359

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 14/8

20:25-11:55

1 stop10h 30m

London Heathrow

Thu 28/8

13:05-22:10

1 stop14h 05m

£360

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 3/11

10:15-22:10

Nonstop6h 55m

London Heathrow

Mon 17/11

08:25-22:00

1 stop18h 35m

£362

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 17/8

15:00-06:45

1 stop10h 45m

London Heathrow

Mon 25/8

09:40-16:30

1 stop11h 50m

£362

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 20/7

23:25-11:25

Nonstop7h 00m

London Heathrow

Sun 14/9

12:55-16:00

Nonstop8h 05m

£362

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 19/9

09:45-21:40

Nonstop6h 55m

London Heathrow

Fri 26/9

07:45-14:45

1 stop12h 00m

£363

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 20/8

19:29-07:45

Nonstop7h 16m

London Heathrow

Mon 1/9

17:00-19:55

Nonstop7h 55m

£364

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 10/9

09:00-09:35

1 stop19h 35m

London Heathrow

Mon 15/9

08:40-16:35

1 stop12h 55m

£365

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 12/8

18:29-09:05

1 stop9h 36m

London Heathrow

Sat 23/8

07:40-13:25

1 stop10h 45m

£366

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 21/8

19:29-06:55

1 stop30h 26m

London Heathrow

Thu 28/8

09:30-08:02

1 stop27h 32m

£370

Flights are sorted by cheapest return flights first.

Deals found on 1/7

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, January is the cheapest month in which you can book a flight from Connecticut to London Heathrow Airport (average of £112). Flying from Connecticut to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

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

Find hourly flight availability from Connecticut to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2025.

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.

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

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 1 July 2025.
See what other customers who have flown with Delta, KLM, andAustrian Airlines from Connecticut to London Heathrow Airport have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,973 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
807 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,301 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,471 reviews
Delta
8.0
Very Good
7,973 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Connecticut to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £129. TAP AIR PORTUGAL flights start at £130 while deals on British Airways start at £150 one-way.

  • 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, January is the cheapest month in which you can book a flight from Connecticut to London Heathrow Airport (average of £112). Flying from Connecticut to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Connecticut?

Book flights to Connecticut if you plan to visit one of these locations
Croydon
Milton Keynes
Hounslow
Deal
Northampton
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Watford
Southend-on-Sea
Folkestone
Ipswich
Winchester
Hayes
Maidstone
Swindon

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.
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Seattle to Gatwick flights
O'Hare Intl to London City flights
San Francisco to Gatwick flights
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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.

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