How long is the flight from Connecticut to London?

For as low as £712, United Airlines can have you in London from Connecticut in 17h 31m. There are 3359 mi between Connecticut and London. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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?

The most popular flight routes from Connecticut to London are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and New York LaGuardia - London Heathrow.

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

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

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

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

How can I find direct flights from Connecticut to London?

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

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

Yes. Cheapflights offers flight deals from Connecticut to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£221+ Cheap Flights from Connecticut to London

Cheap flight deals from Connecticut to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Connecticut to London
Explore the most affordable flight options available from Connecticut to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 October 2026.

Fri 4/1215:07 -

1 stop14h 43m

Sun 6/1209:00 -

2 stops19h 44m

Deal found 3/10£518

Tue 8/1217:01 -

1 stop33h 54m

Thu 10/1212:05 -

2 stops40h 39m

Deal found 1/10£522

Thu 5/1119:54 -

2 stops30h 16m

Sun 8/1107:00 -

2 stops16h 42m

Deal found 3/10£527

Tue 17/1117:02 -

2 stops33h 08m

Fri 20/1106:50 -

2 stops22h 09m

Deal found 29/9£531

Sat 3/1019:40 -

2 stops20h 40m

Mon 5/1011:05 -

2 stops35h 48m

Deal found 29/9£534

Tue 1/1217:55 -

1 stop12h 30m

Sat 12/1209:50 -

1 stop11h 35m

Deal found 1/10£536

Fri 4/1206:00 -

2 stops23h 05m

Sat 5/1212:05 -

1 stop16h 39m

Deal found 30/9£541

Tue 1/1217:55 -

1 stop9h 25m

Tue 8/1208:50 -

1 stop12h 35m

Deal found 2/10£594

Tue 10/1117:55 -

1 stop11h 55m

Tue 17/1109:40 -

1 stop11h 45m

Deal found 1/10£598

Wed 18/1113:31 -

2 stops21h 14m

Sun 22/1110:00 -

2 stops19h 15m

Deal found 3/10£637

Tue 24/1117:55 -

1 stop9h 25m

Tue 1/1209:40 -

1 stop11h 45m

Deal found 29/9£647

Tue 8/1217:55 -

1 stop21h 05m

Thu 10/1208:50 -

1 stop12h 35m

Deal found 1/10£650

Best flights from Connecticut to London
Discover carefully curated flight deals from Connecticut to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Sun 8/1117:02 -

1 stop33h 53m

Wed 11/1106:50 -

2 stops19h 57m

Deal found 28/9£529

Tue 24/1117:55 -

1 stop9h 25m

Tue 1/1209:40 -

1 stop11h 45m

Deal found 29/9£647

Mon 2/1117:14 -

2 stops17h 31m

Mon 9/1110:00 -

2 stops17h 18m

Deal found 3/10£712

Mon 2/1106:00 -

2 stops29h 30m

Sat 7/1117:25 -

2 stops35h 07m

Deal found 29/9£798

Thu 5/1119:54 -

2 stops30h 16m

Sun 8/1106:50 -

2 stops19h 57m

Deal found 30/9£531

Fri 12/217:04 -

2 stops57h 06m

Tue 16/206:50 -

2 stops15h 55m

Deal found 3/10£543

Sat 5/1206:00 -

2 stops20h 55m

Mon 7/1207:30 -

2 stops21h 14m

Deal found 30/9£590

Sun 8/1109:50 -

2 stops20h 10m

Wed 11/1120:25 -

1 stop25h 00m

Deal found 28/9£734

Wed 4/1106:00 -

2 stops22h 10m

Tue 10/1117:25 -

2 stops35h 13m

Deal found 30/9£809

Wed 11/1110:37 -

1 stop19h 13m

Sun 15/1109:00 -

2 stops19h 59m

Deal found 3/10£614

Mon 23/1106:00 -

2 stops22h 10m

Tue 1/1217:25 -

2 stops35h 32m

Deal found 29/9£757

Mon 2/1110:37 -

2 stops16h 18m

Sat 7/1109:00 -

2 stops29h 48m

Deal found 28/9£614

Mon 8/306:00 -

2 stops20h 50m

Mon 15/308:35 -

2 stops19h 11m

Deal found 3/10£806

Tue 24/1106:00 -

2 stops29h 30m

Tue 1/1217:25 -

2 stops35h 32m

Deal found 29/9£892

Thu 22/1012:38 -

1 stop13h 07m

Mon 26/1009:00 -

2 stops18h 59m

Deal found 3/10£615

Thu 14/109:26 -

1 stop15h 29m

Tue 19/109:00 -

2 stops19h 59m

Deal found 3/10£622

Sun 17/106:00 -

3 stops33h 35m

Sat 23/116:35 -

2 stops36h 24m

Deal found 1/10£836

Fri 19/210:23 -

1 stop15h 17m

Fri 26/209:00 -

2 stops19h 57m

Deal found 2/10£622

Wed 9/1206:00 -

2 stops28h 05m

Sun 13/1221:25 -

3 stops31h 32m

Deal found 29/9£881

Mon 8/317:04 -

1 stop13h 56m

Mon 15/309:00 -

2 stops18h 57m

Deal found 3/10£622

Sun 17/106:00 -

2 stops25h 00m

Sat 23/109:00 -

2 stops19h 59m

Deal found 2/10£622

Find flight deals from Connecticut to London

Round-trip from	£518
One-way from	£221
Popular in	June
Cheapest in	January
Average price	£640

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

Search Deals

British Airways
17/11-31/12
1 total stop
9h 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).

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 October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 15/11

06:00-05:55

1 stop18h 55m

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 17/11

12:57-07:15

2 stops13h 18m

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

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

Sun 31/1

14:20-11:40

1 stop16h 20m

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

06:00-10:25

2 stops23h 25m

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

11:39-06:25

1 stop13h 46m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£226

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 18/10

11:24-06:25

1 stop14h 01m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£229

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Mon 19/10

07:00-07:15

1 stop19h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£229

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Sun 18/10

06:00-06:45

2 stops19h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£229

HartfordLondon

BDL Hartford Bradley Intl - LGW London Gatwick

BDLLGW

Hartford Bradley Intl

Mon 16/11

11:39-09:00

2 stops16h 21m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£241

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 40 resultsSorted by cheapest first

Best time to book a flight from Connecticut to London

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

BDL-LHR

BDL-LGW

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

USCT-LON

BDL-LHR

BDL-LGW

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

Currently, February is the cheapest month in which you can book a flight from Connecticut to London (average of £603). Flying from Connecticut to London in June is currently the most expensive (average of £1,047). 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?

Airfare is below average for this route at the moment.

Connecticut to London flights typically cost between £552 and £670 in December.
The cheapest return price found within the last 5 days was £518 on United Airlines (4 Dec–6 Dec).

How far ahead should I book a flight from Connecticut to London?

To ensure you get the cheapest price possible for a flight from Connecticut to London, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

How long is the flight from Connecticut to London?
For as low as £712, United Airlines can have you in London from Connecticut in 17h 31m. There are 3359 mi between Connecticut and London. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Connecticut to London?
The most popular flight routes from Connecticut to London are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and New York LaGuardia - London Heathrow.
Can I find deals for flights from Connecticut to London that include hotel bookings?
Yes. In addition to deals on Connecticut to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Connecticut to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Connecticut to London.
Can I find deals for business class flights from Connecticut to London?
Yes. Cheapflights offers flight deals from Connecticut to London 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?
Currently, February is the cheapest month in which you can book a flight from Connecticut to London (average of £603). Flying from Connecticut to London in June is currently the most expensive (average of £1,047). 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 London?

When you search for this flight from Connecticut to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Connecticut to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Connecticut to London with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Connecticut today and book when prices fit your budget.

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Cheap flights from Connecticut to London from £221

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Connecticut to London

Cheapest flights from Connecticut to LondonExplore the most affordable flight options available from Connecticut to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 October 2026.

Explore the most affordable flight options available from Connecticut to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 October 2026.

Best flights from Connecticut to LondonDiscover carefully curated flight deals from Connecticut to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Discover carefully curated flight deals from Connecticut to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Last-minute flights from Connecticut to LondonDiscover last-minute flight deals from Connecticut to London. Data last updated 4 October 2026 and is based on user searches.

Discover last-minute flight deals from Connecticut to London. Data last updated 4 October 2026 and is based on user searches.

One-way flights from Connecticut to LondonSearch for one-way flight options from Connecticut to London. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.

Search for one-way flight options from Connecticut to London. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.

Find flight deals from Connecticut to London

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

Best time to book a flight from Connecticut to London

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

Cheapflights Insights

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

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

Airfare is below average for this route at the moment.

Connecticut to London flights typically cost between £552 and £670 in December.The cheapest return price found within the last 5 days was £518 on United Airlines (4 Dec–6 Dec).

How far ahead should I book a flight from Connecticut to London?

To ensure you get the cheapest price possible for a flight from Connecticut to London, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

How long is the flight from Connecticut to London?

What are the most popular routes from Connecticut to London?

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

How can I find direct flights from Connecticut to London?

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

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

Travelling to a place near London?

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

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

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

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

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Cheapest flights from Connecticut to London
Explore the most affordable flight options available from Connecticut to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 October 2026.

Best flights from Connecticut to London
Discover carefully curated flight deals from Connecticut to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Last-minute flights from Connecticut to London
Discover last-minute flight deals from Connecticut to London. Data last updated 4 October 2026 and is based on user searches.

One-way flights from Connecticut to London
Search for one-way flight options from Connecticut to London. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.

Connecticut to London flights typically cost between £552 and £670 in December.
The cheapest return price found within the last 5 days was £518 on United Airlines (4 Dec–6 Dec).