BDL - LON

$297 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 9/23. 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

 
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
$764
Typical prices: $927-$641
United Airlines
Sat 10/10Tue 10/13
BDL - LHR • 1 stop
Cheapest one-way
$297
Multiple Airlines
Wed 9/23
BDL - STN • 3 stops
Top airlines
Cheapest • from $764 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Hartford and London. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $533 (round-trip)
Shortest trip • 9h 19m (one-way)
Insights
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Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 97% 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 London!
Flight Deals
Booking Insights
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

Sat, Oct 10 - Tue, Oct 13
United Airlines Logo
5:04 pm - 9:00 am
BDL
-
LHR
34h 56m
1 stop
United Airlines Logo
6:50 am - 11:59 pm
LHR
-
BDL
22h 09m
2 stops
$764United Airlines
Sat, Oct 10 - Tue, Oct 13
United Airlines Logo
5:04 pm - 10:00 am
BDL
-
LHR
35h 56m
2 stops
United Airlines Logo
6:50 am - 11:59 pm
LHR
-
BDL
22h 09m
2 stops
$768United Airlines
Mon, Nov 16 - Mon, Nov 23
Multiple Airlines Logo
5:40 pm - 10:20 am
BDL
-
STN
11h 40m
1 stop
Multiple Airlines Logo
8:15 am - 4:10 pm
STN
-
BDL
12h 55m
1 stop
$799Multiple Airlines
Tue, Oct 27 - Tue, Nov 3
Multiple Airlines Logo
6:40 pm - 9:05 am
BDL
-
LHR
10h 25m
1 stop
Multiple Airlines Logo
12:20 pm - 11:33 pm
LHR
-
BDL
16h 13m
1 stop
$811Multiple Airlines
Mon, Nov 16 - Mon, Nov 23
Multiple Airlines Logo
5:40 pm - 9:15 am
BDL
-
LGW
10h 35m
1 stop
Multiple Airlines Logo
9:00 am - 4:10 pm
LGW
-
BDL
12h 10m
1 stop
$813Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
American Airlines Logo
10:21 am - 8:40 am
BDL
-
LGW
17h 19m
2 stops
American Airlines Logo
10:45 am - 10:19 pm
LGW
-
BDL
16h 34m
2 stops
$883American Airlines
Sun, Sep 6 - Wed, Sep 16
Delta Logo
1:09 pm - 9:25 am
BDL
-
LGW
15h 16m
2 stops
Delta Logo
10:25 am - 11:53 pm
LGW
-
BDL
18h 28m
2 stops
$901Delta
Thu, Aug 20 - Mon, Aug 24
Delta Logo
12:47 pm - 9:25 am
BDL
-
LGW
15h 38m
2 stops
Delta Logo
10:25 am - 11:51 pm
LGW
-
BDL
18h 26m
2 stops
$938Delta
Wed, Oct 7 - Mon, Oct 12
Lufthansa Logo
10:33 am - 8:40 am
BDL
-
LCY
17h 07m
2 stops
Lufthansa Logo
9:15 am - 11:59 pm
LCY
-
BDL
19h 44m
2 stops
$942Lufthansa
Tue, Nov 17 - Wed, Nov 25
Lufthansa Logo
2:48 pm - 9:15 am
BDL
-
LCY
13h 27m
2 stops
Lufthansa Logo
6:15 pm - 6:38 pm
LCY
-
BDL
29h 23m
2 stops
$966Lufthansa
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.

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 October.

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 October, where tickets cost $16 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $854 and $725 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 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$297
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Hartford to London Stansted 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 $297 for a one-way ticket and $764 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Hartford and London, with oneworld 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 $946 and an overall rating of 7.9, 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?

    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 5 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.
7.9
DeltaOverall score based on 8449 reviews
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
7.8Comfort
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

As I wrote earlier, poor planning and/or communication. At least twice, we were told that we would be boarding in less than ten minutes, only to have the flight again delayed at least another hour.

This flight is a quick way to get to Chicago, but a bit expensive.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

Very good trip. Nice clean aircraft. Helpful and friendly crew.

Crew members Grainne and Karen were extremely rude and unprofessional

I am very disappointed in that KAYAK sold me this flight as a business class it was not a business class. It was a regular economy class ticket. This was not Art Linus mistake. It was kayaks.

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

Our flight from Dublin to Coruna did not exist any more. Apparently it was cancelled in February and I was not advised, nor was I offered any flights for rebooking. Happily Aer Lingus found another flight to another city in Spain that was 500 miles from Coruna; I had to pay for a hotel overnight and a revise my rental car that incurred additional costs, and I did not get to Coruna for another 24 hours. I was not at all impressed with Kayak or Chatdeal or Hertz.

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.

It was good. I’m very disappointed that they don’t give commentary ear pods for the movie. I forgot mine at home

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

What a great flight. Seats were more comfortable than other airlines. Flight was full but very easy to navigate. No stress no drama

Flight was quick, less time than expected, and the attendants all friendly and helpful. We had paid extra for more leg room and were very comfortable. Haven't flown JetBlue in quite a while. Glad to be back!

All airline travel outside of First or Business class is an ordeal to be endured. This trip was ok, small o, small k.

TV was broken and could not shut it off. The flicking was bother me and gave me a headache. The WiFi wouldn’t work correctly, I was able to text but not search the web or surf social media. The plane itself had a lot of wear and tear it is due for an update.

JetBlue not only has the most comfortable planes, but also used to have the best customer service. Lorie Wright, the lady at the gate was very rude not only to me, but to other passengers as well. Her colleague, the gentleman was also not very friendly. They both were acting like they were doing passengers a favor. The crew on board was very nice.

Flight was on time and smooth. Customer service was decent

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

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.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

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.

The flight was delayed multiple times. I was autobooted and placed in the center seat in the last row of the plane.

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

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

Information on your arrival and departure airports