$246 Find Cheap Flights from Hartford to the United Kingdom - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hartford to the United Kingdom departing on 7/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Cheap Flights from Hartford to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$670
Edinburgh
Edinburgh1 stop$751
Manchester
Manchester1 stop$731
Birmingham
Birmingham1 stop$853
Belfast
Belfast2 stops$1,007
Bristol
Bristol1 stop$769
Leeds
Leeds2 stops$1,011
Liverpool
Liverpool1 stop$734
Cardiff
Cardiff1 stop$1,261
London
London1 stop$670
Edinburgh
Edinburgh1 stop$751
Manchester
Manchester1 stop$731
Birmingham
Birmingham1 stop$853
Belfast
Belfast2 stops$1,007
Bristol
Bristol1 stop$769
Leeds
Leeds2 stops$1,011
Liverpool
Liverpool1 stop$734
Cardiff
Cardiff1 stop$1,261

Book Cheap Hartford to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hartford to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hartford to the United Kingdom

Mon, Aug 17 - Wed, Sep 2
Multiple Airlines Logo
11:31 am - 10:00 am
BDL
-
LGW
17h 29m
1 stop
Multiple Airlines Logo
2:00 pm - 11:15 pm
LGW
-
BDL
38h 15m
2 stops
$670Multiple Airlines
Sun, Aug 16 - Wed, Aug 26
Multiple Airlines Logo
12:27 pm - 10:00 am
BDL
-
LGW
16h 33m
1 stop
Multiple Airlines Logo
2:00 pm - 11:11 pm
LGW
-
BDL
38h 11m
2 stops
$690Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Aer Lingus Logo
6:00 pm - 10:40 am
BDL
-
EDI
11h 40m
1 stop
Aer Lingus Logo
8:35 am - 4:30 pm
EDI
-
BDL
12h 55m
1 stop
$757Aer Lingus
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
4:56 pm - 7:55 am
BDL
-
LHR
33h 59m
1 stop
United Airlines Logo
6:50 am - 11:59 pm
LHR
-
BDL
22h 09m
2 stops
$763United Airlines
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
7:50 pm - 7:10 am
BDL
-
LHR
30h 20m
2 stops
United Airlines Logo
6:50 am - 11:59 pm
LHR
-
BDL
22h 09m
2 stops
$766United Airlines
Mon, Aug 17 - Wed, Sep 2
JetBlue Logo
6:45 am - 8:45 pm
BDL
-
LHR
9h 00m
1 stop
JetBlue Logo
11:55 am - 12:20 am
LHR
-
BDL
17h 25m
1 stop
$780JetBlue
Mon, Aug 17 - Wed, Sep 2
JetBlue Logo
6:45 am - 8:45 pm
BDL
-
LHR
9h 00m
1 stop
JetBlue Logo
11:55 am - 12:20 am
LHR
-
BDL
17h 25m
1 stop
$781JetBlue
Fri, Aug 14 - Fri, Aug 21
Aer Lingus Logo
6:00 pm - 8:40 am
BDL
-
MAN
9h 40m
1 stop
Aer Lingus Logo
8:10 am - 4:30 pm
MAN
-
BDL
13h 20m
1 stop
$867Aer Lingus
Wed, Aug 12 - Fri, Aug 21
American Airlines Logo
2:06 pm - 10:20 am
BDL
-
GLA
15h 14m
2 stops
American Airlines Logo
7:00 am - 7:52 pm
GLA
-
BDL
17h 52m
2 stops
$932American Airlines
Wed, Aug 12 - Fri, Aug 21
American Airlines Logo
2:06 pm - 10:20 am
BDL
-
GLA
15h 14m
2 stops
American Airlines Logo
7:00 am - 7:52 pm
GLA
-
BDL
17h 52m
2 stops
$933American Airlines
Booking Insights

KAYAK's insights & trends for Hartford to the United Kingdom flights

Get data-powered insights and trends into flights from Hartford to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Hartford to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hartford to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Hartford to the United Kingdom is October, when tickets cost $16 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $854 and $713 respectively.

How far in advance should I book a flight from Hartford to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Hartford to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Hartford to the United Kingdom, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$246
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Hartford to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Hartford to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hartford to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Hartford to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Hartford to the United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Hartford to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Hartford to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hartford to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Hartford to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Hartford to the United Kingdom

 
Need help choosing which airline to fly with from Hartford to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8454 reviews
8.1Boarding
7.2Food
7.8Entertainment
7.8Comfort
8.5Crew
Airline reviews

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

8.0 ExcellentAnonymous, May 2026
ATL - LHR
Read more Delta reviews

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

Everything was good except when we're on a 6 hour flight at dinner time and all they offer as part of the fare are little bags of junk food, it's disappointing. Bring back food service without an added price.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

Late flight caused a missed connection, had to be put on a later international flight without my requested vegan meal.

Half the bathrooms assigned to economy were out of action

It's OK. Engine was noisy. The flight was super late. I mean 4 hours late. That is unheard of.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

All good flight was 35 minutes early when arriving in Edinburgh

Once boarding started it was pretty quick. Food was inedible; cold and salty..

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

Crew was great! Food sub-bar, tepid & flavorless. No snack options on trans-atlantic flight. Premium Economy seats ok, leg rest wouldn’t stay in place.

Entertainment system did not function. USB ports did not function. Wi-Fi did not function. Terrible trifecta…

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

The check in agents in PHL and gate agents had to have been the rudest women that I have ever encountered; the agent weighing the bags at check in screamed continuously at all of the guests as did the woman at the gate.I have Executive Platinum status with AA and fly a lot with AA but these ladies were the absolute worst I had the displeasure to encounter!

The flight was delayed multiple times. I was autobooted and placed in the center seat in the last row of the plane.

Am still mad at American airlines. You should know it's us travel nurses who are your customers and you treat us like nonsense it's not ok. American airlines took my money, no refund for whatsoever. A trip that was of 466 and I paid 466 and 833 then they chose for me where to sit and refund my seat choices and gave me expensive seats for 79 USD. Kayak doesn't help at all after booking you are on your own. Skyscanner is better

Terrible experience with baggage claim at CLT. Posted as arriving at belt 4 and screen there showed the flight. Waited for over 1.2hrs before someone randomly came by and said the bags for that flight had been dropped at CD1 an unknown time ago. There was no notification in the app, on the screens or by any airport personnel prior to this time. Waiting 1.2 hrs after a 2 hr flight for a bag you paid $40 extra to check is infuriating and disappointing.

On the new 319 NEO? seatback entertainment system did not work even when the flight attendant rebooted it. At least I had my cell phone to connect with wifi.

Delay. Flight was delayed in Washington.knew that connection was impossible as not enough time to switch terminals. The steward would not let me stay the night. So forced to Dallas.late night, after 10pm.hotel checkin was one hour. Passengers lined up only one girl to checkin at comfort inn. No food availability at that time. Had to leave early at 6:30 am to catch a flight at 8:45. Stressfull.

Flight was delayed many times. The crew was friendly but you eleven had to buy headphones to access the movies in the plane. $8 is not a lot for one person but it is when you travel with all your family.

When I agreed to give up my two seats because of overbooking by the airline, I should have been offered some sort of reward or credit towards a future flight. I was not. It was not until the next day when I mentioned it to a Jet Blue employee that I was advised to call 1-800-JetBlue. So here I am, having done Jet Blue a favor and I had to do the work to find out if I was going to get a credit. Such service

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

Complete and total debacle from start to finish. HUGE mistake picking this airline. NEVER again! Rudest staff in the business.

The food took two hours to be delivered to my seat, when I'm on an overnight flight I want to sleep asap after take off

It's not JetBlues fault but there was a smell on the plane (possibly other travelers) and 3 children behind me that never quit whining. Soccor fans that were very loud. Pilot brought the plane down from high altitude quickly, dropping us hu dress of feet at a time. I've never felt that intense of dropping on other airlines (usually fly Southwest Airlines). But I arrived safely and I'm thankful for that.

Seats were great, the staff was great, and the food was about the best I've had on a plane, and is especially the best of any US-based carrier I've flown. Free Wi-Fi was also great.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

Everything you need to know for your flight from Hartford to the United Kingdom

Information on your arrival and departure airports