$297 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 9/23. 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

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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$764
Edinburgh
Edinburgh2 stops$771
Manchester
Manchester2 stops$945
Birmingham
Birmingham2 stops$1,116
Belfast
Belfast2 stops$1,266
Bristol
Bristol1 stop$999
Leeds
Leeds2 stops$962
Liverpool
Liverpool1 stop$1,106
Cardiff
Cardiff2 stops$1,086
London
London1 stop$764
Edinburgh
Edinburgh2 stops$771
Manchester
Manchester2 stops$945
Birmingham
Birmingham2 stops$1,116
Belfast
Belfast2 stops$1,266
Bristol
Bristol1 stop$999
Leeds
Leeds2 stops$962
Liverpool
Liverpool1 stop$1,106
Cardiff
Cardiff2 stops$1,086

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

sam., oct. 10 - mar., oct. 13
United Airlines Logo
5:04 pm - 9:00 am
BDL
-
LHR
34h 56m
1 stop
United Airlines Logo
6:50 am - 11:59 pm
LHR
-
BDL
22h 09m
2 stops
$764United Airlines
sam., oct. 10 - mar., oct. 13
United Airlines Logo
5:04 pm - 10:00 am
BDL
-
LHR
35h 56m
2 stops
United Airlines Logo
6:50 am - 11:59 pm
LHR
-
BDL
22h 09m
2 stops
$768United Airlines
jeu., juil. 23 - mer., juil. 29
JetBlue Logo
6:45 am - 9:20 am
BDL
-
EDI
21h 35m
1 stop
JetBlue Logo
12:10 pm - 11:59 pm
EDI
-
BDL
16h 49m
1 stop
$803JetBlue
mar., sept. 1 - jeu., sept. 10
Aer Lingus Logo
6:00 pm - 10:40 am
BDL
-
EDI
11h 40m
1 stop
Aer Lingus Logo
11:10 am - 4:30 pm
EDI
-
BDL
10h 20m
1 stop
$823Aer Lingus
mer., oct. 7 - mer., oct. 21
JetBlue Logo
6:25 am - 9:20 am
BDL
-
EDI
21h 55m
1 stop
JetBlue Logo
12:10 pm - 11:44 pm
EDI
-
BDL
16h 34m
1 stop
$861JetBlue
lun., sept. 14 - mer., sept. 30
American Airlines Logo
10:21 am - 8:40 am
BDL
-
LGW
17h 19m
2 stops
American Airlines Logo
10:45 am - 10:19 pm
LGW
-
BDL
16h 34m
2 stops
$883American Airlines
dim., sept. 6 - mer., sept. 16
Delta Logo
1:09 pm - 9:25 am
BDL
-
LGW
15h 16m
2 stops
Delta Logo
10:25 am - 11:53 pm
LGW
-
BDL
18h 28m
2 stops
$901Delta
mer., sept. 9 - dim., sept. 13
American Airlines Logo
3:15 pm - 12:30 pm
BDL
-
GLA
16h 15m
2 stops
American Airlines Logo
6:00 am - 4:38 pm
GLA
-
BDL
15h 38m
2 stops
$933American Airlines
lun., sept. 21 - lun., oct. 12
Delta Logo
5:48 am - 8:15 am
BDL
-
MAN
21h 27m
2 stops
Delta Logo
2:55 pm - 8:47 am
MAN
-
BDL
22h 52m
2 stops
$953Delta
lun., sept. 7 - mer., sept. 16
Aer Lingus Logo
6:00 pm - 11:30 am
BDL
-
GLA
12h 30m
1 stop
Aer Lingus Logo
8:35 am - 4:30 pm
GLA
-
BDL
12h 55m
1 stop
$992Aer Lingus
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 3 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$297
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Hartford to London Stansted 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 8457 reviews
8.5Crew
8.1Boarding
7.2Food
7.8Comfort
7.8Entertainment
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

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. 😀

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

Very good trip. Nice clean aircraft. Helpful and friendly crew.

Crew members Grainne and Karen were extremely rude and unprofessional

I am very disappointed in that KAYAK sold me this flight as a business class it was not a business class. It was a regular economy class ticket. This was not Art Linus mistake. It was kayaks.

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

Our flight from Dublin to Coruna did not exist any more. Apparently it was cancelled in February and I was not advised, nor was I offered any flights for rebooking. Happily Aer Lingus found another flight to another city in Spain that was 500 miles from Coruna; I had to pay for a hotel overnight and a revise my rental car that incurred additional costs, and I did not get to Coruna for another 24 hours. I was not at all impressed with Kayak or Chatdeal or Hertz.

OK overall. Flight was delayed Crew on flight was good

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Poor. Plane left EWR late hence missed connecting flight in Dublin. No pro active info from flight staff on connection, only when probed a couple of lies on where we would dock, and on lilelyhood catching connecting flight. Lies as they will have known our EWR-DUB would be parked furthest away from the transit spit - lying it would be next to the AMS flight.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

It was good. I’m very disappointed that they don’t give commentary ear pods for the movie. I forgot mine at home

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

What a great flight. Seats were more comfortable than other airlines. Flight was full but very easy to navigate. No stress no drama

Flight was quick, less time than expected, and the attendants all friendly and helpful. We had paid extra for more leg room and were very comfortable. Haven't flown JetBlue in quite a while. Glad to be back!

All airline travel outside of First or Business class is an ordeal to be endured. This trip was ok, small o, small k.

TV was broken and could not shut it off. The flicking was bother me and gave me a headache. The WiFi wouldn’t work correctly, I was able to text but not search the web or surf social media. The plane itself had a lot of wear and tear it is due for an update.

JetBlue not only has the most comfortable planes, but also used to have the best customer service. Lorie Wright, the lady at the gate was very rude not only to me, but to other passengers as well. Her colleague, the gentleman was also not very friendly. They both were acting like they were doing passengers a favor. The crew on board was very nice.

Flight was on time and smooth. Customer service was decent

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

The business class layout of chairs was weired. You are sitting directly across stranger.,

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

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

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

Information on your arrival and departure airports