What is the cheapest airline that flies from Connecticut to London Heathrow?

TAP AIR PORTUGAL, British Airways, and United Airlines are the most popular carriers operating from Connecticut to London Heathrow

How many flights depart from Connecticut to London Heathrow Airport on average per week?

The number of flights available between Connecticut and London Heathrow Airport is 917 per week as of March 2026. The most frequent departure day is Sun, with 16% of weekly flights leaving on this day.

How long does it take to fly to London Heathrow Airport?

On average, it takes 9h to fly from Connecticut to London Heathrow Airport if you fly out of Hartford (the most popular airport in Connecticut) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of New Haven and into London Heathrow Airport, then the flight time is around 17h 45m.

What airlines fly to London Heathrow Airport?

Aer Lingus, United Airlines and JetBlue are the top three most popular airlines that fly to London Heathrow Airport from Connecticut according to our data. Aer Lingus is the first choice among our users, with 37% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Connecticut to London Heathrow Airport?

As of March 2026, there are 21 operators available to choose from for flights from Connecticut to London Heathrow Airport.

How old do you have to be to fly from Connecticut to London Heathrow Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Connecticut to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$226 Cheap Flights from Connecticut to London Heathrow Airport in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Connecticut to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:05 pm - 10:00 pm

JFK

LHR

18h 55m

1 stop

11:20 am - 8:05 pm

LHR

JFK

13h 45m

1 stop

$488TAP AIR PORTUGAL

Mon, May 4 - Mon, May 18

10:05 pm - 10:00 pm

JFK

LHR

18h 55m

1 stop

6:00 am - 8:05 pm

LHR

JFK

19h 05m

1 stop

$489TAP AIR PORTUGAL

Mon, May 4 - Wed, May 20

5:20 pm - 8:55 am

EWR

LHR

34h 35m

1 stop

7:05 am - 1:15 pm

LHR

EWR

11h 10m

1 stop

$507Scandinavian Airlines

Sun, Apr 19 - Wed, Apr 22

5:20 pm - 8:55 am

EWR

LHR

34h 35m

1 stop

7:05 am - 1:15 pm

LHR

EWR

11h 10m

1 stop

$508Scandinavian Airlines

Sun, Apr 26 - Wed, Apr 29

11:35 am - 6:35 am

LGA

LHR

14h 00m

1 stop

9:30 am - 4:58 pm

LHR

LGA

12h 28m

1 stop

$518Air Canada

Sat, May 2 - Sun, May 10

4:45 pm - 11:50 am

LGA

LHR

14h 05m

1 stop

9:30 am - 4:58 pm

LHR

LGA

12h 28m

1 stop

$541Air Canada

Sun, May 3 - Sun, May 10

6:00 pm - 9:05 am

BDL

LHR

10h 05m

1 stop

9:50 am - 4:30 pm

LHR

BDL

11h 40m

1 stop

$799Aer Lingus

Sun, May 3 - Sun, May 10

6:00 pm - 10:20 am

BDL

LHR

11h 20m

1 stop

9:50 am - 4:30 pm

LHR

BDL

11h 40m

1 stop

$816Aer Lingus

Sun, Apr 26 - Tue, May 12

6:00 am - 9:30 am

PVD

LHR

22h 30m

1 stop

8:15 am - 11:51 pm

LHR

PVD

20h 36m

1 stop

$825JetBlue

Mon, May 4 - Mon, May 11

6:00 am - 8:45 pm

PVD

LHR

9h 45m

1 stop

11:55 am - 11:29 pm

LHR

PVD

16h 34m

1 stop

$834JetBlue

Sat, Apr 4 - Wed, Apr 8

TAP AIR PORTUGAL flights from Connecticut to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Connecticut to London Heathrow Airport flight tickets

TAP AIR PORTUGAL

May 4

JFK10:05 pmNew York John F Kennedy Intl

18h 55m

1 stop

LHR10:00 pmLondon Heathrow

May 18

LHR11:20 amLondon Heathrow

13h 45m

1 stop

JFK8:05 pmNew York John F Kennedy Intl

$488

TAP AIR PORTUGAL

May 4

JFK10:05 pmNew York John F Kennedy Intl

18h 55m

1 stop

LHR10:00 pmLondon Heathrow

May 20

LHR6:00 amLondon Heathrow

19h 05m

1 stop

JFK8:05 pmNew York John F Kennedy Intl

$489

TAP AIR PORTUGAL

Apr 20

JFK10:05 pmNew York John F Kennedy Intl

18h 55m

1 stop

LHR10:00 pmLondon Heathrow

May 4

LHR6:00 amLondon Heathrow

19h 05m

1 stop

JFK8:05 pmNew York John F Kennedy Intl

$490

Scandinavian Airlines flights from Connecticut to London Heathrow Airport

Our best Scandinavian Airlines deals on Connecticut to London Heathrow Airport flight tickets

Scandinavian Airlines

Apr 19

EWR5:20 pmNewark

34h 35m

1 stop

LHR8:55 amLondon Heathrow

Apr 22

LHR7:05 amLondon Heathrow

11h 10m

1 stop

EWR1:15 pmNewark

$507

Scandinavian Airlines

Apr 26

EWR5:20 pmNewark

34h 35m

1 stop

LHR8:55 amLondon Heathrow

Apr 29

LHR7:05 amLondon Heathrow

11h 10m

1 stop

EWR1:15 pmNewark

$508

Scandinavian Airlines

May 23

EWR5:45 pmNewark

20h 05m

1 stop

LHR6:50 pmLondon Heathrow

May 25

LHR6:05 pmLondon Heathrow

24h 10m

1 stop

EWR1:15 pmNewark

$511

momondo 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 round-trip

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:00 pm

1 stop18h 55m

London Heathrow

Mon 5/18

11:20 am-8:05 pm

1 stop13h 45m

$488

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 5/4

10:05 pm-10:00 pm

1 stop18h 55m

London Heathrow

Wed 5/20

6:00 am-8:05 pm

1 stop19h 05m

$489

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 4/19

5:20 pm-8:55 am

1 stop34h 35m

London Heathrow

Wed 4/22

7:05 am-1:15 pm

1 stop11h 10m

$507

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 4/26

5:20 pm-8:55 am

1 stop34h 35m

London Heathrow

Wed 4/29

7:05 am-1:15 pm

1 stop11h 10m

$508

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 5/2

11:35 am-6:35 am

1 stop14h 00m

London Heathrow

Sun 5/10

9:30 am-4:58 pm

1 stop12h 28m

$518

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 5/3

4:45 pm-11:50 am

1 stop14h 05m

London Heathrow

Sun 5/10

9:30 am-4:58 pm

1 stop12h 28m

$541

Quickest round-trip

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Sun 5/3

6:00 pm-9:05 am

1 stop10h 05m

London Heathrow

Sun 5/10

9:50 am-4:30 pm

1 stop11h 40m

$799

HartfordLondon

BDL - LHR

BDLLHR

Hartford Bradley Intl

Sun 4/26

6:00 pm-10:20 am

1 stop11h 20m

London Heathrow

Tue 5/12

9:50 am-4:30 pm

1 stop11h 40m

$816

ProvidenceLondon

PVD - LHR

PVDLHR

Providence-TFGreen

Mon 5/4

6:00 am-9:30 am

1 stop22h 30m

London Heathrow

Mon 5/11

8:15 am-11:51 pm

1 stop20h 36m

$825

ProvidenceLondon

PVD - LHR

PVDLHR

Providence-TFGreen

Sat 4/4

6:00 am-8:45 pm

1 stop9h 45m

London Heathrow

Wed 4/8

11:55 am-11:29 pm

1 stop16h 34m

$834

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Connecticut to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Connecticut, with most prices found around $634. If you’re not able to fly to London Heathrow Airport in February, then September is your next best option. Flight prices from Connecticut to London Heathrow Airport during September average around $735.

Cheap Connecticut to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Connecticut to London Heathrow Airport

Fastest flight time	6h 50m
Direct flights	Every day

The fastest flight from Connecticut to London Heathrow Airport takes 6h 50m

Direct flights go from Connecticut to London Heathrow Airport every day.

Search flight deals

When did momondo last update prices for flights from Connecticut to London Heathrow Airport?
Prices for flights from Connecticut to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Connecticut to London Heathrow Airport?
As of March 2026, there are 21 operators available to choose from for flights from Connecticut to London Heathrow Airport.
How old do you have to be to fly from Connecticut to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Connecticut to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Connecticut to London Heathrow Airport

Compare and see reviews for airlines that fly from Connecticut to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $16	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
United Airlines	PriceFrom $627	Free Cancellation	Rating 7.4 9,455 reviews	Search United Airlines flights
American Airlines	PriceFrom $629	Free Cancellation	Rating 7.1 11,489 reviews	Search American Airlines flights
Aer Lingus	PriceFrom $656	Free Cancellation	Rating 7.2 1,481 reviews	Search Aer Lingus flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Crawley

Stratford-upon-Avon

Wembley

Hayes

Dartford

Croydon

Harrow

Watford

Brentwood

Guildford

Stansted

Cobham

Folkestone

Romford

Why use momondo?

Why should I use momondo to find a flight deal from Connecticut to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Connecticut.

Can I find flights from Connecticut to London with flexible booking policies on momondo?

Flights from Connecticut to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Connecticut to London?

Once you have performed a search for Connecticut to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Connecticut to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Connecticut. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 4/21

Tue 4/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities

Other flights from Connecticut

Other flights to London

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $424

Flights to London City Airportfrom $617

Flights to London Stansted Airportfrom $436

Flights to London Luton Airportfrom $444

Flights to Glasgow Intl Airportfrom $524

Flights to Belfast Intl Airport

Flights to London Southend Airportfrom $723

Flights to Belfast City Airportfrom $711

Cheap flights from Connecticut to London from $235

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Connecticut to London departing on 3/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Connecticut to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

TAP AIR PORTUGAL flights from Connecticut to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Connecticut to London Heathrow Airport flight tickets

Scandinavian Airlines flights from Connecticut to London Heathrow Airport

Our best Scandinavian Airlines deals on Connecticut to London Heathrow Airport flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from Connecticut to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest airline that flies from Connecticut to London Heathrow?

What airlines fly to London Heathrow Airport?

How many flights depart from Connecticut to London Heathrow Airport on average per week?

How long does it take to fly to London Heathrow Airport?

Cheap Connecticut to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Connecticut to London Heathrow Airport

Fastest flight time

Direct flights

Best airlines flying from Connecticut to London Heathrow Airport

Compare and see reviews for airlines that fly from Connecticut to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Connecticut flight routes

According to popular flight searches on momondo this year

London Heathrow Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Complete your trip to London

Explore popular destinations other users love

According to popular flight searches on momondo this year