BDL - LON

$267 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 10/12. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
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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Flight Deals

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

Mon, Sep 8 - Wed, Sep 24
Aer Lingus Logo
6:05 pm - 8:00 amBDL-LHR
8h 55m1 stop
Aer Lingus Logo
9:50 am - 4:35 pmLHR-BDL
11h 45m1 stop
$574Aer Lingus
Find Deal
Mon, Sep 8 - Wed, Sep 24
Virgin Atlantic Logo
2:31 pm - 11:10 amBDL-LHR
15h 39m1 stop
Virgin Atlantic Logo
8:55 pm - 11:23 pmLHR-BDL
31h 28m2 stops
$613Virgin Atlantic
Find Deal
Tue, Sep 2 - Fri, Sep 12
Delta Logo
11:55 am - 1:30 pmBDL-LHR
20h 35m1 stop
Delta Logo
6:15 am - 4:13 pmLHR-BDL
14h 58m2 stops
$622Delta
Find Deal
Tue, Oct 28 - Wed, Nov 5
Delta Logo
12:32 pm - 9:00 amBDL-LHR
16h 28m1 stop
Delta Logo
9:00 am - 10:09 pmLHR-BDL
18h 09m2 stops
$623Delta
Find Deal
Tue, Sep 2 - Fri, Sep 12
Delta Logo
1:00 pm - 9:15 amBDL-LHR
15h 15m2 stops
Delta Logo
9:00 am - 11:23 pmLHR-BDL
19h 23m2 stops
$627Delta
Find Deal
Mon, Sep 1 - Tue, Sep 16
American Airlines Logo
1:52 pm - 7:40 amBDL-LHR
12h 48m1 stop
American Airlines Logo
10:05 am - 5:20 pmLHR-BDL
12h 15m1 stop
$630American Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 14
American Airlines Logo
4:08 pm - 10:20 amBDL-LHR
13h 12m1 stop
American Airlines Logo
9:15 am - 5:43 pmLHR-BDL
13h 28m1 stop
$631American Airlines
Find Deal
Fri, Oct 3 - Fri, Oct 10
JetBlue Logo
7:10 am - 8:45 pmBDL-LHR
8h 35m1 stop
JetBlue Logo
11:55 am - 10:01 pmLHR-BDL
15h 06m1 stop
$642JetBlue
Find Deal
Fri, Sep 12 - Tue, Sep 16
JetBlue Logo
7:10 am - 8:45 pmBDL-LHR
8h 35m1 stop
JetBlue Logo
8:15 am - 10:29 pmLHR-BDL
19h 14m1 stop
$657JetBlue
Find Deal
Thu, Sep 25 - Tue, Sep 30
KLM Logo
6:38 pm - 1:30 pmBDL-LHR
13h 52m1 stop
KLM Logo
1:05 pm - 11:52 pmLHR-BDL
15h 47m1 stop
$685KLM
Find Deal
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?

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 January, where tickets cost $747 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,186 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 19% 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$267
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 16% 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 $267 for a one-way ticket and $574 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?

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

  • What is the most popular layover when flying to London from Hartford?

    Dublin is the most popular layover city among KAYAK users traveling from Hartford to London.

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

    The two airlines most popular with KAYAK users for flights from Hartford to London are United Airlines and American Airlines. With an average price for the route of $853 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $992 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 3 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 8930 reviews
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

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

6.0 GoodCaroline, Aug 2025IAD - EDI
Read more United Airlines reviews

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

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

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.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

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

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

British Airways staff are very polite and willing to help.

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

I was very disappointed that the online sys allowed me to get the boarding pass for the second leg of the trip, when I clearly request it for both flights!

My experience with Aer Lingus was nice, and I would be happy to fly with them again. However, my seat pocket had not been cleaned and had dirty wipes in it. I have flown with Aer Lingus before and do not recall anything like that happening, so presumably this was a one-off kind of thing. For the meal, I asked if there was possibly one without my allergens and the flight attendant gave me the one she thought would be fine. She did not know what allergens were in it, but when I received the meal the allergens were all listed right on the top of the package, so I was confused about why she didn’t know how to check what they were. In future, I will see if it’s possible to request an allergen-free meal ahead of time. But overall, I had a pleasant experience. My experience with Underpricer was very unenjoyable and because of them I do not plan to book through Kayak in the future. I have used Kayak numerous times, but this booking experience was so unpleasant. They called me numerous times and also emailed me to try to get me to select a seat. However, when I had a question later on, I was kept on hold for 20/30 minutes before I finally hung up. I also emailed them but never received a response, which I did not appreciate, especially given their previous frequent calls when they wanted something from me.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

In business class overhead bins were minuscule. Had to use cabin staff to find a place for my carry-on bag. Boarding process was shambolic, as “passengers who needed assistance in boarding” absorbed an excessive amount of time and attention that Aer Lingus was apparently unprepared for.

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

Dublin to Boston was decent. Food and entertainment was included and that was expected for the rate paid.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

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

Information on your arrival and departure airports

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