$270 Find Cheap Flights from Hartford to the United Kingdom

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 4/21. 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.
1 adult
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$682
Edinburgh
Edinburgh1 stop$792
Manchester
Manchester2 stops$868
Birmingham
Birmingham2 stops$905
Belfast
Belfast2 stops$21,452
Newcastle upon Tyne
Newcastle upon Tyne2 stops$1,138
Bristol
Bristol2 stops$1,143
Leeds
Leeds1 stop$1,625
Liverpool
Liverpool1 stop$1,098
Cardiff
Cardiff1 stop$1,827
London
London1 stop$682
Edinburgh
Edinburgh1 stop$792
Manchester
Manchester2 stops$868
Birmingham
Birmingham2 stops$905
Belfast
Belfast2 stops$21,452
Newcastle upon Tyne
Newcastle upon Tyne2 stops$1,138
Bristol
Bristol2 stops$1,143
Leeds
Leeds1 stop$1,625
Liverpool
Liverpool1 stop$1,098
Cardiff
Cardiff1 stop$1,827

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

Fri, May 1 - Fri, May 8
Virgin Atlantic Logo
7:01 pm - 1:15 pm
BDL
-
LHR
13h 14m
1 stop
Virgin Atlantic Logo
11:15 am - 10:18 pm
LHR
-
BDL
16h 03m
1 stop
$682Virgin Atlantic
Wed, Apr 22 - Mon, Apr 27
KLM Logo
12:55 pm - 7:10 am
BDL
-
LHR
13h 15m
1 stop
KLM Logo
11:45 am - 4:54 pm
LHR
-
BDL
34h 09m
2 stops
$702KLM
Sat, May 2 - Sat, May 9
JetBlue Logo
6:00 am - 9:20 am
BDL
-
EDI
22h 20m
1 stop
JetBlue Logo
12:10 pm - 11:49 pm
EDI
-
BDL
16h 39m
1 stop
$792JetBlue
Wed, May 13 - Wed, May 20
JetBlue Logo
6:00 am - 9:20 am
BDL
-
EDI
22h 20m
1 stop
JetBlue Logo
12:10 pm - 11:49 pm
EDI
-
BDL
16h 39m
1 stop
$857JetBlue
Mon, Apr 20 - Thu, Apr 23
Aer Lingus Logo
6:00 pm - 8:00 am
BDL
-
EDI
9h 00m
1 stop
Aer Lingus Logo
9:40 am - 4:30 pm
EDI
-
BDL
11h 50m
1 stop
$870Aer Lingus
Wed, Aug 12 - Sat, Aug 22
Aer Lingus Logo
6:00 pm - 10:55 am
BDL
-
MAN
11h 55m
1 stop
Aer Lingus Logo
8:10 am - 4:30 pm
MAN
-
BDL
13h 20m
1 stop
$873Aer Lingus
Mon, Aug 17 - Wed, Aug 26
United Airlines Logo
5:04 pm - 8:25 am
BDL
-
EDI
34h 21m
1 stop
United Airlines Logo
9:00 am - 11:57 pm
EDI
-
BDL
43h 57m
2 stops
$891United Airlines
Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
12:45 pm - 8:25 am
BDL
-
EDI
14h 40m
1 stop
United Airlines Logo
12:30 pm - 11:57 pm
EDI
-
BDL
16h 27m
1 stop
$895United Airlines
Tue, Apr 28 - Tue, May 5
American Airlines Logo
7:23 pm - 4:45 pm
BDL
-
GLA
16h 22m
2 stops
American Airlines Logo
5:55 am - 6:39 pm
GLA
-
BDL
17h 44m
2 stops
$934American Airlines
Tue, Apr 28 - Tue, May 5
American Airlines Logo
7:23 pm - 2:40 pm
BDL
-
GLA
14h 17m
2 stops
American Airlines Logo
5:55 am - 6:39 pm
GLA
-
BDL
17h 44m
2 stops
$954American 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 January, when tickets cost $657 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,165 and $1,126 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 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$270
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Hartford to London Heathrow 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.
7.9
DeltaOverall score based on 8378 reviews
7.9Comfort
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

We departed and landed early which was a nice surprise. The boarding process was slow.

10.0 ExcellentBrittany, Apr 2026
DAL - ATL
Read more Delta reviews

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

I had a good time. However, I paid for the wifi and it was in and out the whole flight.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

I flew economy class. Seats were very good and the crew was excellent

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!

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

I specifically choose not to check bags to ensure I can proceed directly to ground transportation upon arrival. However, due to a recurring lack of cabin space, I was again forced to gate-check my rolling luggage after going through my luggage to take out electronics and batteries. This practice unilaterally changes the service agreement made at the time of purchase. JetBlue needs to find a better way to manage overhead space that honors the carry-on baggage allowance.

Still hasn’t left. Why are you asking how it was?

Flight was good wish there were more snacks options for such a long flight but stewardesses were very pleasant as was flight crew.

I was denied a plastic fork to eat my food and was told plastic forks are for paying customers who buy Jet Blue’s food. So I had to make a utensil out of a cup so nourish my body. Like a refugee. Because decency is dead.

I was especially impressed without efficiently the crew got passengers on and off. One of the stewards was slightly gruff, I thought. No big deal but that's what I noticed.

Absolutely horrible. Flight was delayed 4 hours and they had no clue what was going on.

Onboard functioning wide-variety entertainment on a budget and having an open pantry is nice. Seats are not comfortable but go provide plenty of legroom for a 6'2" 260lbs man.

Even though the weather made a lot of flights become cancelled Jet Blue made the flight that was supposed to leave at 9 pm and we left at 12:15 am and I was so grateful- Thanks to the Senior Jet Blue Staff who made those decisions

Worst customer service ever experienced on the planet, dirty plane, no communication, and severe delays

Flight cancelled 2 hours prior to boarding. No explanation. No refunds.

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

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

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

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

Information on your arrival and departure airports