What is the cheapest airline that flies from Connecticut to United Kingdom?

KLM, Delta, and United Airlines are the most popular carriers operating from Connecticut to United Kingdom

What airlines fly to United Kingdom?

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to United Kingdom from Connecticut according to our data. Aer Lingus is the first choice among our users, with 78% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 6 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

How long is the flight from Connecticut to United Kingdom?

The flight from Connecticut to United Kingdom depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Hartford (a popular airport in Connecticut) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 10h on average. If you fly from New Haven (another popular airport in Connecticut) to London Heathrow Airport, then the average flight time is 15h 40m.

When did momondo last update prices for flights from Connecticut to United Kingdom?

Prices for flights from Connecticut to United Kingdom are updated daily.

How many operators does momondo search for flights from Connecticut to United Kingdom?

As of September 2026, there are 6 operators available to choose from for flights from Connecticut to United Kingdom.

How old do you have to be to fly from Connecticut to United Kingdom?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Connecticut to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$286 Cheap Flights from Connecticut to the United Kingdom in 2026/27

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Find the cheapest flights from Connecticut to the United Kingdom

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:55 pm - 8:40 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

9h 45m1 stop Dublin

7:30 am - 4:25 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

13h 55m1 stop Dublin

$625Multiple Airlines

Thu, Nov 5 - Thu, Nov 12

7:15 pm - 4:45 pmBDL Hartford Bradley Intl-GLA Glasgow Intl

16h 30m2 stops Philadelphia London Heathrow

6:15 am - 8:02 pmGLA Glasgow Intl-BDL Hartford Bradley Intl

17h 47m2 stops London Heathrow Charlotte Douglas

$650American Airlines

Tue, Oct 20 - Tue, Oct 27

6:00 pm - 9:05 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

10h 05m1 stop Dublin

11:10 am - 4:30 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

10h 20m1 stop Dublin

$675Aer Lingus

Wed, Oct 14 - Wed, Oct 21

7:00 am - 7:15 amBDL Hartford Bradley Intl-LHR London Heathrow

19h 15m1 stop Atlanta Hartsfield-Jackson

8:40 am - 9:19 pmLHR London Heathrow-BDL Hartford Bradley Intl

17h 39m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$676Delta

Wed, Oct 14 - Wed, Oct 21

2:00 pm - 1:15 pmBDL Hartford Bradley Intl-LHR London Heathrow

18h 15m1 stop Atlanta Hartsfield-Jackson

6:15 am - 5:59 pmLHR London Heathrow-BDL Hartford Bradley Intl

16h 44m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$677Delta

Wed, Oct 14 - Thu, Oct 22

6:00 pm - 8:40 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

9h 40m1 stop Dublin

9:40 am - 4:30 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

11h 50m1 stop Dublin

$679Aer Lingus

Tue, Oct 6 - Thu, Oct 15

2:28 pm - 6:55 amBDL Hartford Bradley Intl-LHR London Heathrow

11h 27m1 stop Charlotte Douglas

2:45 pm - 11:24 pmLHR London Heathrow-BDL Hartford Bradley Intl

13h 39m1 stop Chicago O'Hare Intl

$684American Airlines

Wed, Oct 14 - Wed, Oct 21

6:00 am - 6:40 amBDL Hartford Bradley Intl-LHR London Heathrow

19h 40m1 stop Washington, D.C. Dulles Intl

9:00 am - 11:44 pmLHR London Heathrow-BDL Hartford Bradley Intl

19h 44m2 stops Zurich Washington, D.C. Dulles Intl

$687United Airlines

Tue, Dec 8 - Wed, Dec 9

6:00 am - 5:55 amBDL Hartford Bradley Intl-LHR London Heathrow

18h 55m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

9:00 am - 11:44 pmLHR London Heathrow-BDL Hartford Bradley Intl

19h 44m2 stops Zurich Washington, D.C. Dulles Intl

$687United Airlines

Tue, Dec 8 - Wed, Dec 9

6:26 pm - 3:15 pmBDL Hartford Bradley Intl-MAN Manchester

15h 49m2 stops Chicago O'Hare Intl London Heathrow

9:15 am - 10:30 pmMAN Manchester-BDL Hartford Bradley Intl

18h 15m2 stops London Heathrow Philadelphia

$734Multiple Airlines

Fri, Nov 6 - Fri, Nov 13

Cheap last minute flights

Enter your travel dates to find the best prices.

12:36 pm - 7:15 amBDL Hartford Bradley Intl-LHR London Heathrow

13h 39m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

8:55 am - 9:19 pmLHR London Heathrow-BDL Hartford Bradley Intl

17h 24m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$682Delta

Wed, Sep 30 - Tue, Oct 6

9:38 am - 7:15 amBDL Hartford Bradley Intl-LHR London Heathrow

16h 37m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

12:25 pm - 11:49 pmLHR London Heathrow-BDL Hartford Bradley Intl

16h 24m1 stop Minneapolis St Paul

$688Delta

Wed, Sep 30 - Tue, Oct 6

6:05 am - 9:00 amBDL Hartford Bradley Intl-LHR London Heathrow

21h 55m1 stop Chicago O'Hare Intl

8:45 am - 9:37 pmLHR London Heathrow-BDL Hartford Bradley Intl

17h 52m2 stops Zurich Chicago O'Hare Intl

$700United Airlines

Sun, Sep 27 - Tue, Sep 29

6:05 am - 9:00 amBDL Hartford Bradley Intl-LHR London Heathrow

21h 55m1 stop Chicago O'Hare Intl

6:50 am - 11:59 pmLHR London Heathrow-BDL Hartford Bradley Intl

22h 09m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

$703United Airlines

Fri, Oct 2 - Sun, Oct 4

6:00 am - 7:20 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

20h 20m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

6:10 am - 11:59 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

22h 49m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$825Multiple Airlines

Thu, Oct 1 - Tue, Oct 13

7:40 pm - 7:20 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

30h 40m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

6:10 am - 11:59 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

22h 49m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$830Multiple Airlines

Thu, Oct 1 - Tue, Oct 13

6:00 pm - 8:30 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

9h 30m1 stop Dublin

9:15 am - 4:30 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

12h 15m1 stop Dublin

$953Aer Lingus

Thu, Oct 1 - Tue, Oct 13

6:25 am - 9:20 amBDL Hartford Bradley Intl-EDI Edinburgh Turnhouse

21h 55m1 stop New York John F Kennedy Intl

12:10 pm - 11:46 pmEDI Edinburgh Turnhouse-BDL Hartford Bradley Intl

16h 36m1 stop New York John F Kennedy Intl

$1,013JetBlue

Thu, Oct 1 - Tue, Oct 13

6:00 pm - 8:05 amBDL Hartford Bradley Intl-LHR London Heathrow

9h 05m1 stop Dublin

7:40 am - 4:30 pmLHR London Heathrow-BDL Hartford Bradley Intl

13h 50m1 stop Dublin

$8,210Aer Lingus

Thu, Oct 1 - Tue, Oct 6

6:25 am - 8:45 pmBDL Hartford Bradley Intl-LHR London Heathrow

9h 20m1 stop New York John F Kennedy Intl

8:15 am - 11:46 pmLHR London Heathrow-BDL Hartford Bradley Intl

20h 31m1 stop New York John F Kennedy Intl

$8,264JetBlue

Wed, Sep 30 - Tue, Oct 6

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Delta flights from Connecticut to United Kingdom

Our best Delta deals on Connecticut to United Kingdom flight tickets

Delta

Oct 14

BDL7:00 amHartford Bradley Intl

19h 15m

1 stop

LHR7:15 amLondon Heathrow

Oct 21

LHR8:40 amLondon Heathrow

17h 39m

2 stops

BDL9:19 pmHartford Bradley Intl

$676

Delta

Oct 14

BDL6:00 amHartford Bradley Intl

20h 15m

1 stop

LHR7:15 amLondon Heathrow

Oct 21

LHR8:55 amLondon Heathrow

19h 37m

2 stops

BDL11:32 pmHartford Bradley Intl

$677

Delta

Oct 14

BDL5:14 pmHartford Bradley Intl

13h 51m

2 stops

LHR12:05 pmLondon Heathrow

Oct 21

LHR6:30 amLondon Heathrow

16h 55m

2 stops

BDL6:25 pmHartford Bradley Intl

$681

United Airlines flights from Connecticut to United Kingdom

Our best United Airlines deals on Connecticut to United Kingdom flight tickets

United Airlines

Dec 8

BDL6:00 amHartford Bradley Intl

18h 55m

2 stops

LHR5:55 amLondon Heathrow

Dec 9

LHR9:00 amLondon Heathrow

19h 44m

2 stops

BDL11:44 pmHartford Bradley Intl

$687

United Airlines

Nov 13

BDL5:02 pmHartford Bradley Intl

13h 58m

1 stop

LHR12:00 pmLondon Heathrow

Nov 15

LHR7:00 amLondon Heathrow

16h 42m

2 stops

BDL6:42 pmHartford Bradley Intl

$690

United Airlines

Nov 14

BDL12:40 pmHartford Bradley Intl

12h 15m

1 stop

LHR5:55 amLondon Heathrow

Nov 15

LHR11:05 amLondon Heathrow

39h 42m

2 stops

BDL9:47 pmHartford Bradley Intl

$695

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HartfordEdinburgh

BDL Hartford Bradley Intl - EDI Edinburgh Turnhouse

BDLEDI

Hartford Bradley Intl

Thu 11/5

5:55 pm-8:40 am

1 stop9h 45m

Edinburgh Turnhouse

Thu 11/12

7:30 am-4:25 pm

1 stop13h 55m

$625

HartfordGlasgow

BDL Hartford Bradley Intl - GLA Glasgow Intl

BDLGLA

Hartford Bradley Intl

Tue 10/20

7:15 pm-4:45 pm

2 stops16h 30m

Glasgow Intl

Tue 10/27

6:15 am-8:02 pm

2 stops17h 47m

$650

Quickest round-trip

HartfordEdinburgh

BDL Hartford Bradley Intl - EDI Edinburgh Turnhouse

BDLEDI

Hartford Bradley Intl

Wed 10/14

6:00 pm-9:05 am

1 stop10h 05m

Edinburgh Turnhouse

Wed 10/21

11:10 am-4:30 pm

1 stop10h 20m

$675

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Wed 10/14

7:00 am-7:15 am

1 stop19h 15m

London Heathrow

Wed 10/21

8:40 am-9:19 pm

2 stops17h 39m

$676

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Wed 10/14

2:00 pm-1:15 pm

1 stop18h 15m

London Heathrow

Thu 10/22

6:15 am-5:59 pm

2 stops16h 44m

$677

HartfordEdinburgh

BDL Hartford Bradley Intl - EDI Edinburgh Turnhouse

BDLEDI

Hartford Bradley Intl

Tue 10/6

6:00 pm-8:40 am

1 stop9h 40m

Edinburgh Turnhouse

Thu 10/15

9:40 am-4:30 pm

1 stop11h 50m

$679

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Wed 10/14

2:28 pm-6:55 am

1 stop11h 27m

London Heathrow

Wed 10/21

2:45 pm-11:24 pm

1 stop13h 39m

$684

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Tue 12/8

6:00 am-6:40 am

1 stop19h 40m

London Heathrow

Wed 12/9

9:00 am-11:44 pm

2 stops19h 44m

$687

HartfordLondon

BDL Hartford Bradley Intl - LHR London Heathrow

BDLLHR

Hartford Bradley Intl

Tue 12/8

6:00 am-5:55 am

2 stops18h 55m

London Heathrow

Wed 12/9

9:00 am-11:44 pm

2 stops19h 44m

$687

HartfordManchester

BDL Hartford Bradley Intl - MAN Manchester

BDLMAN

Hartford Bradley Intl

Fri 11/6

6:26 pm-3:15 pm

2 stops15h 49m

Manchester

Fri 11/13

9:15 am-10:30 pm

2 stops18h 15m

$734

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 United Kingdom

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 United Kingdom?

In general, February is the cheapest month to fly from Connecticut to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $723. If you aren’t able to travel to United Kingdom during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $812.

Cheap Connecticut to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Connecticut to United Kingdom

Best Price Found	$286
Fastest flight time	6h 35m
Direct flights	None

The best one-way flight to United Kingdom from Connecticut in the past 72 hours is $286. The best round-trip flight deal from Connecticut to United Kingdom found on momondo in the last 72 hours is $625.

The fastest flight from Connecticut to United Kingdom takes 6h 35m

There are no direct flights from Connecticut to United Kingdom. There are no popular flight routes from Connecticut to United Kingdom.

Search flight deals

Frequently asked questions about flying from Connecticut to the United Kingdom

When did momondo last update prices for flights from Connecticut to United Kingdom?
Prices for flights from Connecticut to United Kingdom are updated daily.
How many operators does momondo search for flights from Connecticut to United Kingdom?
As of September 2026, there are 6 operators available to choose from for flights from Connecticut to United Kingdom.
How old do you have to be to fly from Connecticut to United Kingdom?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Connecticut to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Connecticut to United Kingdom

Compare and see reviews for airlines that fly from Connecticut to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $482	Free Cancellation	Rating 7.8 8,611 reviews	Search Delta flights
British Airways	PriceFrom $569	Free Cancellation	Rating 6.7 8,238 reviews	Search British Airways flights
JetBlue	PriceFrom $638	Free Cancellation	Rating 7.1 3,040 reviews	Search JetBlue flights
United Airlines	PriceFrom $658	Free Cancellation	Rating 7.4 10,245 reviews	Search United Airlines flights
Aer Lingus	PriceFrom $671	Free Cancellation	Rating 7.3 1,789 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $779	Free Cancellation	Rating 7.0 12,102 reviews	Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Connecticut to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

All flight searches from Connecticut to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Connecticut to United Kingdom?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Connecticut.

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

Yes. momondo can track prices for Connecticut to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.