BDL - LON

$285 Find Cheap Flights from Hartford to London

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 London departing on 11/8. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hartford to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hartford to London, as well as popular online travel agencies
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Cheap Flights from Hartford to London (BDL-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hartford to London 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 London

Tue, Mar 31 - Mon, Apr 13
Multiple Airlines Logo
9:10 am - 10:00 amBDL-LGW
19h 50m1 stop
Multiple Airlines Logo
2:00 pm - 4:20 pmLGW-BDL
31h 20m1 stop
$626Multiple Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
JetBlue Logo
7:10 am - 9:40 pmBDL-LHR
9h 30m1 stop
JetBlue Logo
12:20 pm - 11:59 pmLHR-BDL
16h 39m1 stop
$641JetBlue
Find Deal
Fri, Nov 7 - Sun, Nov 9
JetBlue Logo
7:05 am - 9:30 amBDL-LHR
21h 25m1 stop
JetBlue Logo
7:45 am - 10:29 pmLHR-BDL
19h 44m1 stop
$645JetBlue
Find Deal
Wed, Nov 12 - Mon, Nov 17
Lufthansa Logo
7:55 pm - 3:50 pmBDL-LHR
14h 55m2 stops
Lufthansa Logo
8:45 am - 11:59 pmLHR-BDL
20h 14m2 stops
$666Lufthansa
Find Deal
Thu, Nov 13 - Thu, Nov 20
United Airlines Logo
6:10 am - 7:10 amBDL-LHR
20h 00m2 stops
United Airlines Logo
6:35 am - 6:51 pmLHR-BDL
17h 16m2 stops
$669United Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 9
United Airlines Logo
6:00 am - 6:40 amBDL-LHR
19h 40m1 stop
United Airlines Logo
6:50 am - 11:33 pmLHR-BDL
21h 43m2 stops
$671United Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
Aer Lingus Logo
6:05 pm - 11:15 amBDL-LHR
12h 10m1 stop
Aer Lingus Logo
9:50 am - 4:35 pmLHR-BDL
11h 45m1 stop
$762Aer Lingus
Find Deal
Mon, Nov 3 - Mon, Nov 10
Aer Lingus Logo
5:40 pm - 9:05 amBDL-LHR
10h 25m1 stop
Aer Lingus Logo
9:50 am - 4:10 pmLHR-BDL
11h 20m1 stop
$828Aer Lingus
Find Deal
Sun, Mar 29 - Sun, Apr 12
Lufthansa Logo
2:48 pm - 6:35 pmBDL-LCY
22h 47m2 stops
Lufthansa Logo
5:50 pm - 11:57 pmLCY-BDL
35h 07m2 stops
$877Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
6:05 am - 7:30 amBDL-LGW
21h 25m2 stops
American Airlines Logo
2:30 pm - 1:01 pmLGW-BDL
27h 31m2 stops
$970American Airlines
Find Deal

Everything you should know

Top airlines
JetBlue
Cheapest • from $641 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Video guide: How to find cheap flights to London
Watch video
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When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 16% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$626
Multiple Airlines
Tue 3/31Mon 4/13
BDL - LGW • 1 stop
Cheapest one-way
$285
JetBlue
Sat 11/8
BDL - LHR • 1 stop
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Booking Insights

KAYAK's insights & trends for Hartford to London flights

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

Find cheap flights to London
Find cheap flights to London

Planning a trip from Hartford to London? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

How much is a round-trip flight from Hartford to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Hartford to London departing in March.

What’s the cheapest day of the week to fly from Hartford to London?

The average price of all round-trip flights from Hartford to London clicked on KAYAK for each day over the last 12 months.

For Hartford to London, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London back to Hartford, the best deals are generally found on Friday, with Tuesday being the most expensive.

What is the cheapest month to fly from Hartford to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hartford to London, 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 London is April, where tickets cost $761 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,183 and $1,093 respectively.

How far in advance should I book a flight from Hartford to London?

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 London, 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 London, you should book around 3 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$285
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Hartford to London Heathrow Airport

When to book flights from Hartford to London

Are your dates flexible? Find out the best times to travel from Hartford to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Hartford to London

  • Where will I arrive when flying from Hartford to London?

    If you are flying from Hartford to London, you will most likely depart from two different airports depending on your airline and route. You will land at London Heathrow Airport (LHR), located about 15 miles west of central London, Heathrow is the busiest airport in the United Kingdom and one of the busiest in the world. Apart from LHR, you can also depart from London Gatwick Airport (LGW), located approximately 30 miles South of Central London.

  • How can I spend my time while waiting for my airport transfer at London Heathrow Airport?

    Are you arriving at LHR? London Heathrow Airport (LHR) features various art exhibitions throughout its terminals. The airport has a dedicated art program called the "Heathrow Art Prize" that showcases the works of emerging and established artists. Passengers can enjoy sculptures, installations, paintings, and other forms of art as they navigate through the airport, adding a cultural element to their travel experience.

  • Are there lounges available at Bradley International Airport (BDL)?

    Bradley International Airport (BDL) offers several lounges for passengers flying through the airport. These lounges include the Escape Lounge on the Airside, East Concourse, which provides comfortable seating, complimentary food and beverages, Wi-Fi, and a relaxing atmosphere. The American Airlines Admirals Club offers similar amenities for eligible passengers. The lounges provide a quiet and comfortable space to unwind, work, or enjoy refreshments before a flight.

  • What is the carry-on policy on flights from Hartford to London?

    Virgin Atlantic's carry-on policy for flights from Hartford to London allows passengers to bring one cabin bag on board, with maximum dimensions of 22 x 14 x 9 inches. Apart from the cabin bag, travelers are also permitted to bring a small personal item such as a handbag or laptop bag. The total combined weight of both items should not exceed 22 lbs.

  • What is the cheapest flight from Hartford to London?

    In the last 3 days, the lowest price for a flight from Hartford to London was $285 for a one-way ticket and $626 for a round-trip.

  • Do I need a passport to fly between Hartford and London?

    Yes, you’ll need a passport to travel to London from Hartford.

  • Which aircraft models fly most regularly from Hartford to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Hartford to London?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Hartford and London, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Hartford to London, United Airlines or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Hartford to London are United Airlines and Aer Lingus. With an average price for the route of $871 and an overall rating of 7.4, United Airlines is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of $904 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Hartford to London?

    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 London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Hartford 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 London?

    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 to London with an airline and back to Hartford with another airline.

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

    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 to London from Hartford up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Hartford to London

  • You can pre-select your seat on Delta Airlines when flying from Hartford to London. Delta offers seat selection during the booking process, or you can choose your seat later through the Manage My Booking section. Availability may vary based on ticket type and fare class.
  • WestJet Airlines operating from Hartford to London offers a range of inflight amenities to enhance the travel experience. These include complimentary snacks and non-alcoholic beverages, inflight entertainment with movies and TV shows, and the option to purchase additional food, beverages, and Wi-Fi on select flights.
  • Aer Lingus has an Unaccompanied Minors (UM) service to ensure the safety and well-being of children traveling alone. The UM service is mandatory for children aged 4 to 11 and optional for children aged 12 to 15.
  • Delta Airlines from Hartford to London offers seat upgrades to passengers. The availability of seat upgrades and the options for upgrading may vary depending on your ticket fare class, your Delta SkyMiles status, and seat availability. You can upgrade your seat by paying an extra fee or using miles.
  • Lufthansa Airlines offers a range of kid amenities to make the travel experience more enjoyable for children. The Lufthansa Kids App offers interactive games, puzzles, and activities to keep children entertained during the flight. It also has audio programs tailored for children and child-friendly meals.

Reviews of the top 4 airlines serving from Hartford to London

 
See real verified KAYAK customer reviews for airlines flying from Hartford to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hartford to London? 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.
7.4
United AirlinesOverall score based on 8954 reviews
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
6.6Food
Airline reviews

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

4.0 OkayMike, Oct 2025OKC - DEN
Read more United Airlines reviews

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

Flight is clean and ontime. Crew is friendly. Snack can be better and the internet connection is poor

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

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

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

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

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

The actual flight experience was great. The handling of my luggage was terrible. First, I had to check in at the airport and wasn’t able to check in online because they booked me with a partner carrier in the U.S. that was incredibly inconvenient. I was also told that I would have to check in again with the partner airline in the U.S., also incredibly inconvenient at a large airport. Second, when I was at the counter, they did not tell me my carryon was too big. I only found that out when I tried to board the plane. I don’t know that it actually was too big though. It’s a standard sized carry on that I’ve never had issue with on any planes before. They assured me my bag would be checked all the way to my final destination. Due to flight from Paris to Dublin being delayed, I was rebooked on a different transatlantic flight to the U.S., which resulted in a different connecting flight to my final destination. My luggage was rerouted and I was assured it would be at my final destination. When I got to Newark, I received multiple phone calls alerting me that my bag was across the airport at a different terminal and that I needed to go pick it up near the baggage carousels. In the Newark airport, every terminal has its own security checkpoint. Leaving any terminal and entering another one requires a security check. At this point, I had to go through security in Paris, then again for US customs and pre-clearance at Dublin, then a third time when I had to change terminals at Newark for my connecting flight home. It was at this point I received the call that I needed to retrieve my bag from literally the opposite end of the airport and go through security A FOURTH TIME. These was no notification that I needed to do this before I went to the gate for my final flight. It took me an hour to go do all this, after I had already been traveling for 19 hours while sick and should have been home already were it not for the delay of my original flight. I retrieved the bag. My carryon became a carryon again and fit just fine on the last plane, by the way. I would also like to mention that my TSA flight information was not included on my ticket, so once again, I had to go to the airline counter to get my ticket corrected and reprinted before I could go through security and try to save myself time. Finally, I have celiac disease and prefer not to eat meat. There was literally no food I could eat on the seven and a half hour flight across the Atlantic. When the flight attendant woke me up for dinner (I would have preferred to sleep), I asked if there were any gluten free options. I was told the only option was chicken. I begrudgingly accepted because it was the only option, hoping anything else in the meal could be eaten. There was plain rice and a few green beans. The side dish was teriyaki vegetables containing gluten. There was a piece of bread, containing gluten. There was a custard, containing gluten. I could eat literally nothing except the very small amount of rice and green beans. When the same flight attendant came around again, while I was sleeping, a sandwich was placed in front of me, again food I could not eat. And this was after I got to the flight to find that my newly assigned seat on my transatlantic flight had been given to someone else! It’s like nobody communicates over there. This airline has the worst logistics of any airline I have ever been on, and I travel frequently. Dear Aer Lingus, DO BETTER.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

A caveat, we flew during the ransomware attack that hacked the boarding and luggage tracking systems. I wouldn't ever be angry at the employees for that, but I WOULD be (and am) angry that communication was incredibly poor, that we got few live updates, and that the employees seemed uninformed and ill-equipped to handle the situation. Clear, honest, open communication and instructions would have benefited the situation. Unfortunately, there were literally no gate agents to talk to, no airport employees to direct people, and no clear signage (the app pretty much said "we don't know what gate your flight is."). Beyond this nightmare, the security was the usual dehumanizing circus of "Security Theater" which is... as we all know... only for show and completely useless. All three airports on this journey dropped the ball so hard. The flight industry can do so much better. Aer Lingus can do so much better.

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

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

There was a fowl odour coming from the lavatory the entire flight

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

They have the most inexperienced / rude flight staff I’ve encountered

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

Everything you need to know for your flight from Hartford to London

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