BDL - LHR

$335 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 10/18. 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 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$729
Typical prices: $1,053-$731
Delta
seg 8/24sáb 8/29
BDL - LHR • 1 stop
Cheapest one-way
$335
Typical prices: $407-$493
Aer Lingus
dom 10/18
BDL - LHR • 1 stop
Top airlines
Cheapest • from $729 (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 $533 (round-trip)
Shortest trip • 9h 26m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

seg, ago 24 - sáb, ago 29
Delta Logo
6:30 pm - 1:05 pm
BDL
-
LHR
13h 35m
1 stop
Delta Logo
11:30 am - 11:32 pm
LHR
-
BDL
17h 02m
2 stops
$729Delta
seg, ago 24 - sáb, ago 29
Delta Logo
5:00 pm - 1:05 pm
BDL
-
LHR
15h 05m
2 stops
Delta Logo
8:40 am - 11:32 pm
LHR
-
BDL
19h 52m
2 stops
$733Delta
sex, out 23 - qua, out 28
Delta Logo
5:00 pm - 12:05 pm
BDL
-
LHR
14h 05m
2 stops
Delta Logo
6:30 am - 8:10 pm
LHR
-
BDL
17h 40m
2 stops
$734Delta
ter, mai 12 - seg, mai 18
KLM Logo
6:59 pm - 1:05 pm
BDL
-
LHR
13h 06m
1 stop
KLM Logo
11:15 am - 10:18 pm
LHR
-
BDL
16h 03m
1 stop
$735KLM
qua, out 14 - qua, out 21
KLM Logo
2:20 pm - 11:20 am
BDL
-
LHR
16h 00m
1 stop
KLM Logo
1:25 pm - 10:02 pm
LHR
-
BDL
13h 37m
1 stop
$736KLM
qua, ago 5 - qui, ago 20
Virgin Atlantic Logo
9:49 am - 6:45 am
BDL
-
LHR
15h 56m
2 stops
Virgin Atlantic Logo
11:15 am - 8:18 pm
LHR
-
BDL
14h 03m
1 stop
$740Virgin Atlantic
dom, ago 16 - sáb, ago 22
Delta Logo
9:35 am - 7:40 am
BDL
-
LHR
17h 05m
2 stops
Delta Logo
11:30 am - 11:32 pm
LHR
-
BDL
17h 02m
2 stops
$760Delta
qui, set 3 - ter, set 15
Delta Logo
1:00 pm - 8:50 am
BDL
-
LHR
14h 50m
2 stops
Delta Logo
8:40 am - 11:36 pm
LHR
-
BDL
19h 56m
2 stops
$786Delta
qui, set 3 - ter, set 15
Delta Logo
1:00 pm - 8:50 am
BDL
-
LHR
14h 50m
2 stops
Delta Logo
11:15 am - 8:18 pm
LHR
-
BDL
14h 03m
1 stop
$793Delta
seg, mai 18 - seg, mai 25
Delta Logo
5:30 am - 7:10 am
BDL
-
LHR
20h 40m
1 stop
Delta Logo
6:30 am - 11:57 pm
LHR
-
BDL
22h 27m
2 stops
$795Delta
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.

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 July, where the average cost of round-trip tickets is $1,202 and $1,049 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, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$335
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 14% 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 3 days, the lowest price for a flight from Hartford to London Heathrow Airport was $335 for a one-way ticket and $729 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 $976 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 $956 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 9677 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Some crew were unfriendly or in some cases just straight up rude.

6.0 GoodAnonymous, Apr 2026
SFO - YVR
Read more United Airlines reviews

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

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.

I flew economy class. Seats were very good and the crew was excellent

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

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

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Flight was as expected. But it was delayed an hour. Also, my luggage got damaged. So that sucked especially since the damage made navigating the airport difficult. Walking to get ground transportation is sooo far away now and my checked bag was difficult to carry.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Crew was very friendly. Did not like being jammed in the back middle seat. Don’t understand why I can not select an aisle for free based on first come first serve. Also first time I’ve been on a flight which attempted land then circled Detroit airport multiple times.

Terrible. There was a lot of misleading information regarding ticketing, seat upgrades, & boarding group. I also expect my seat will recline. I have back problems & it is very painful for me of the seat doesn’t recline. In addition, when I choose a fare that allows me a carry-on bag, I expect to be able to carry it on. Not be forced to check it. Thos happened on my flight to MCO & back to Boston. Not sure I will ever fly JetBlue again. Further I bought the ticket through hat deal. I will NEVER do that again. They were incapable of providing an accurate record locator # for either leg of the trip. I had to call them before each flight with me VERY stressed about whether I would actually be able to get on my flight. Who does that? Who books flight & then FAILS to give an accurate record locator? Twice!

The flight was delayed 4 hours and the JetBlue people at the counter kept lying to us and telling us it was due to weather however all other flights were going in and out of NY and FL. Then they lied that the plane had to stop to refuel. Then they lied and said the plane needed a tire change. JetBlue is the worst. Then they gave a lot of people meal vouchers however I didn’t know they did that and they didn’t offer anything to me.

I had pre-selected a meal. I was told that it cannot be served because of some issue with the vendor. When travelling business class, I expect better service

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.

British Airways is an excellent travel service. Comfort, food and airline personnel.

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

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

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.

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

Information on your arrival and departure airports