BDL - LHR

$279 Find Cheap Flights from Hartford to London Heathrow Airport

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 Heathrow departing on 9/9. 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 Heathrow Airport

 
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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Flights Deals

Cheap Flights from Hartford to Heathrow (BDL-LHR)

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

Tue, Oct 21 - Sat, Nov 15
JetBlue Logo
7:10 am - 8:45 pmBDL-LHR
8h 35m1 stop
JetBlue Logo
12:20 pm - 10:51 pmLHR-BDL
15h 31m1 stop
$603JetBlue
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Tue, Sep 2 - Fri, Sep 12
JetBlue Logo
7:00 am - 8:45 pmBDL-LHR
8h 45m1 stop
JetBlue Logo
11:55 am - 10:01 pmLHR-BDL
15h 06m1 stop
$618JetBlue
Find Deal
Mon, Sep 8 - Wed, Sep 17
United Airlines Logo
2:57 pm - 6:55 amBDL-LHR
10h 58m1 stop
United Airlines Logo
2:05 pm - 5:23 pmLHR-BDL
32h 18m2 stops
$728United Airlines
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Tue, Sep 30 - Tue, Oct 14
United Airlines Logo
2:51 pm - 6:55 amBDL-LHR
11h 04m1 stop
United Airlines Logo
2:05 pm - 2:33 pmLHR-BDL
29h 28m2 stops
$729United Airlines
Find Deal
Thu, Aug 14 - Wed, Aug 27
Aer Lingus Logo
6:05 pm - 12:40 pmBDL-LHR
13h 35m1 stop
Aer Lingus Logo
8:50 am - 4:35 pmLHR-BDL
12h 45m1 stop
$751Aer Lingus
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Tue, Aug 26 - Thu, Sep 4
Delta Logo
2:31 pm - 1:30 pmBDL-LHR
17h 59m1 stop
Delta Logo
9:20 am - 5:59 pmLHR-BDL
13h 39m1 stop
$752Delta
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Wed, Aug 27 - Thu, Sep 4
Delta Logo
5:35 am - 8:55 amBDL-LHR
22h 20m1 stop
Delta Logo
3:15 pm - 11:58 pmLHR-BDL
13h 43m1 stop
$757Delta
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Tue, Jul 8 - Wed, Jul 30
American Airlines Logo
3:15 pm - 10:30 amBDL-LHR
14h 15m1 stop
American Airlines Logo
10:05 am - 6:40 pmLHR-BDL
13h 35m1 stop
$834American Airlines
Find Deal
Sat, Aug 2 - Sun, Aug 10
American Airlines Logo
3:15 pm - 8:05 amBDL-LHR
11h 50m1 stop
American Airlines Logo
9:15 am - 4:30 pmLHR-BDL
12h 15m1 stop
$903American Airlines
Find Deal
Thu, Aug 28 - Tue, Sep 9
Aer Lingus Logo
6:05 pm - 9:05 amBDL-LHR
10h 00m1 stop
Aer Lingus Logo
7:40 am - 4:35 pmLHR-BDL
13h 55m1 stop
$992Aer Lingus
Find Deal
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KAYAK's insights & trends for Hartford to Heathrow flights

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

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

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

If you are looking for a flight deal from Hartford to London Heathrow Airport, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from London Heathrow Airport, Friday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hartford to London Heathrow Airport, 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 Heathrow Airport is November, where tickets cost $710 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,182 and $1,047 respectively.

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

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 Heathrow Airport, 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 Heathrow Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$279
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from Hartford to London Heathrow Airport

When to book flights from Hartford to Heathrow

Are your dates flexible? Find out the best times to travel from Hartford to Heathrow 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 Hartford to London Heathrow Airport flights

  • What is the cheapest flight from Hartford to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Hartford to London Heathrow Airport was $279 for a one-way ticket and $603 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Hartford to London Heathrow Airport?

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

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

    The two airlines most popular with KAYAK users for flights from Hartford to London are Delta and United Airlines. With an average price for the route of $833 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $956 and an overall rating of 7.4.

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

    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 Heathrow Airport.

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

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

    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 Heathrow Airport with an airline and back to Hartford with another airline. Booking your flights between Hartford and LHR can sometimes prove cheaper using this method.

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

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

Reviews of the top 4 airlines serving from Hartford to Heathrow

 
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 Heathrow? 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.
8.0
DeltaOverall score based on 7963 reviews
7.9Comfort
7.3Food
8.2Boarding
8.5Crew
7.9Entertainment
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

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

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

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.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

One cold drinks service. No snacks with drinks. No tomato juice or apple juice, coke - only fanta or sprite then ran out of that. Went to gally after meal service no one there / no self service for water at least. Waited 25 min for cabin crew to assist. No recycling of cardboard/ plastic - all put to garbage. Breakfast was a nutrigrain bar and an orange juice. Also I'm sure I booked a flight with checked luggage allowance but had to buy extra when I had my booking confirmation. Movies were good. Chairs comfy. Pillow and blanket and ac vents.

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

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

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