BDL - LHR

$324 Find Cheap Flights from Hartford to London Heathrow Airport - Compare and Save

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 10/4. 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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Everything you should know

Cheapest round-trip
$790
Typical prices: $739-$1,050
JetBlue
Thu 8/27Thu 9/3
BDL - LHR • 1 stop
Cheapest one-way
$324
Typical prices: $399-$493
Aer Lingus
Sun 10/4
BDL - LHR • 1 stop
Top airlines
Cheapest • from $790 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Hartford and Heathrow. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $713 (round-trip)
Shortest trip • 9h 26m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight 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

Thu, Aug 27 - Thu, Sep 3
JetBlue Logo
6:45 am - 8:45 pm
BDL
-
LHR
9h 00m
1 stop
JetBlue Logo
11:55 am - 12:20 am
LHR
-
BDL
17h 25m
1 stop
$790JetBlue
Tue, Sep 15 - Tue, Sep 29
Multiple Airlines Logo
11:43 am - 6:25 am
BDL
-
LHR
13h 42m
1 stop
Multiple Airlines Logo
11:55 am - 11:46 pm
LHR
-
BDL
16h 51m
1 stop
$792Multiple Airlines
Fri, Sep 4 - Tue, Sep 8
Multiple Airlines Logo
10:33 am - 6:30 am
BDL
-
LHR
14h 57m
2 stops
Multiple Airlines Logo
8:15 am - 12:20 am
LHR
-
BDL
21h 05m
1 stop
$797Multiple Airlines
Thu, Sep 10 - Tue, Sep 15
JetBlue Logo
6:25 am - 8:45 pm
BDL
-
LHR
9h 20m
1 stop
JetBlue Logo
8:15 am - 11:46 pm
LHR
-
BDL
20h 31m
1 stop
$801JetBlue
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
10:33 am - 8:35 am
BDL
-
LHR
17h 02m
2 stops
United Airlines Logo
6:50 am - 9:37 pm
LHR
-
BDL
19h 47m
2 stops
$863United Airlines
Wed, Oct 14 - Wed, Oct 21
United Airlines Logo
9:44 am - 11:55 am
BDL
-
LHR
21h 11m
1 stop
United Airlines Logo
6:50 am - 6:56 pm
LHR
-
BDL
17h 06m
2 stops
$863United Airlines
Wed, Nov 4 - Wed, Nov 25
American Airlines Logo
2:54 pm - 9:15 am
BDL
-
LHR
13h 21m
1 stop
American Airlines Logo
10:35 am - 10:27 pm
LHR
-
BDL
16h 52m
1 stop
$893American Airlines
Thu, Aug 27 - Tue, Sep 1
American Airlines Logo
5:41 pm - 10:30 am
BDL
-
LHR
11h 49m
1 stop
American Airlines Logo
2:25 pm - 10:54 pm
LHR
-
BDL
13h 29m
1 stop
$1,014American Airlines
Thu, Aug 27 - Tue, Sep 1
Aer Lingus Logo
6:00 pm - 8:05 am
BDL
-
LHR
9h 05m
1 stop
Aer Lingus Logo
9:50 am - 4:30 pm
LHR
-
BDL
11h 40m
1 stop
$1,087Aer Lingus
Sat, Dec 19 - Sat, Jan 2
Aer Lingus Logo
11:23 am - 9:05 am
BDL
-
LHR
16h 42m
2 stops
Aer Lingus Logo
7:50 am - 4:10 pm
LHR
-
BDL
13h 20m
1 stop
$1,754Aer Lingus
Booking Insights

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.

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

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 Heathrow Airport departing in August.

Flight prices are typical for this route right now.

Flights to London Heathrow Airport from Hartford usually cost between $745 and $1,053 in August.
The lowest price found in the past 5 days was $790 on JetBlue (Aug 27-Sep 3).

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 February, where tickets cost $634 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,299 and $1,284 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low season

February

Cheapest flight

$324
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 21% lower on average.
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 5 days, the lowest price for a flight from Hartford to London Heathrow Airport was $324 for a one-way ticket and $790 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Hartford and London Heathrow Airport, with oneworld 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 $1,095 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 $966 and an overall rating of 7.3.

  • 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.
7.4
United AirlinesOverall score based on 10062 reviews
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
6.7Food
Airline reviews

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

10.0 ExcellentAnonymous, Jun 2026
LAX - LHR
Read more United Airlines reviews

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Fight was delayed an hour due to operational issues ,then further delayed due to ground control for a total of about 1.30 hours. Salad was completely frozen and flatware was so cold you could barely handle it. Crew was friendly and professional and the flight was smooth. The aircraft was clean and well-serviced.

Waited for our plane from HNL so we didn't miss connection. AMAZING Service for that, then really clean plane. Nice airline attendants.

Horrible! I paid for a straight flight from Chicago to London. A week before trip it changed and now I had a connecting flight. Our flight was delayed an hour and a half because our flight crew was still flying in from CA. Forty passengers ran from one plane to the next. The next United Airlines flight was delayed two to three hours because of mechanical difficulties. They had to ready another plane which took time. I missed my scheduled excursion in London. 😢

Lufthansa placed a 300 lb passenger in the aisle seat and I was stuck in the middle leaning sideways with no arm rest or ability to sit up straight and fully use my seat (due to encroachment-the seats are very narrow) the entire flight.

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

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

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

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Short flight so not much to rate. Surprised I had to pay for a soda.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

Very good need to offer better choice of food for business

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

Comfort in premium economy is worth it for long hauls especially on the 787-9P Dreamliner with the modern updates. The food was okay. All 4 of us selected the same meal, 2 of us had very dry hard to cut chicken, the other 2 were tender and good. The sides/salad/dessert all very good as far as airline food goes. Crew were very attentive. Will be hard to ever go back to regular economy!

Crew was great! Food sub-bar, tepid & flavorless. No snack options on trans-atlantic flight. Premium Economy seats ok, leg rest wouldn’t stay in place.

Entertainment system did not function. USB ports did not function. Wi-Fi did not function. Terrible trifecta…

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

The check in agents in PHL and gate agents had to have been the rudest women that I have ever encountered; the agent weighing the bags at check in screamed continuously at all of the guests as did the woman at the gate.I have Executive Platinum status with AA and fly a lot with AA but these ladies were the absolute worst I had the displeasure to encounter!

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

It's a long flight and that is always difficult. I was comfortable and well. The movies available were great and the crew was good.

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.

When I booked, I included my checked luggage and when the bill was sent there was no record of this. Its was costly since I am from Trinidad amd Tobago. Exchange rate over seven dollars to one US dollar.

Everything was good except checking bags . I had paid for two bags but it didn’t show so we had to do it again while people waited and we were struggling to get to our flight

Flight delayed 4 times on a non-stop from BOS to SFO. Then when landed in SFO had to wait for 30 mins for a gate AT 3:30AM.

Plane was delayed multiple times. I would like to request a refund. Was due to arrive Thursday evening ended up arriving Friday morning.

The seats were roomier than other airplanes I’ve been on.

The crew and the pilots. The pilots were amazing. The landing in Cancun was excellent.

Like the variety of entertainment options. One crew member was a little on the rough/rude side. Boarding was a mess, attendants didn't do a great job of helping with the luggage storage and it delayed us a couple of minutes.

The food took two hours to be delivered to my seat, when I'm on an overnight flight I want to sleep asap after take off

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

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

Information on your arrival and departure airports