Premium economy offers more legroom and priority boarding on long-haul flights.
BA's Club World offers business class with lie-flat seats and enhanced dining.

Planning a trip from Boston to Heathrow? 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.
When planning a trip from Boston to London Heathrow, there are several ways to potentially save money on your flight. Generally, Tuesdays are the cheapest day of the week to fly, while October is the cheapest month.
Day Selection: Choose to fly on a Tuesday for the best rates.
Month Selection: Opt for October flights to save money.
Booking Advance: Book your flight around 178 days in advance for the best prices.
Airline Choice: Consider flying with Icelandair, as they generally offer the cheapest fares for this route.
Flight Type: Opt for a flight with a layover, as it is generally cheaper than a direct flight.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
| Low season | January |
|---|---|
| High season | April |
| Cheapest flight | $206 |
Direct departures
Boston Logan Intl to London Heathrow
Monday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Tuesday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Wednesday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Thursday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Friday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Saturday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Sunday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Direct returns
London Heathrow to Boston Logan Intl
Monday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Tuesday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Wednesday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Thursday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Friday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Saturday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
Sunday
American Airlines, British Airways, Delta, +2 more
American Airlines, British Airways, +3 more
1
2
I truly love flying with Delta. They have always treated me with the upmost respect
I truly love flying with Delta. They have always treated me with the upmost respect
Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.
Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.
Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.
They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.
The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.
Non stop on long haul is the way to go. Great experience
The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.
The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.
Old plane and old configuration/seats but still comfortable for a morning flight
Great staff great experience, made a 2 hour delay very bearable
Great staff, great experience, made a 2 hour delay very bearable
Food was the worst I’ve had on a VA flight. Normally it’s a lot better
I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼
These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.
Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.
The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great
Great crew - old style upper class seats on the older fleet now feels dated
Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.
Food was excellent. Service was very good. Staff was very helpful to all passengers.
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.
Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes
Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.
The flight was canceled 3 hours after original take off time
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.
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
I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.
The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0
The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.
Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.
Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.
We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.
The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.
It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.
Easy and organized getting in and out of the flight
We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.
Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.
Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.
The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.
The flat beds. Other than that, the place was not clean.
Moved me away from my family and refused to fix it.
I have always been pleased with their service. Would not change a thing
Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .
Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.
I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!
Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.