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Find First Class Flights from Boston to London

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1 adult, First, 0 bags

KAYAK searches hundreds of travel sites at once for first class flights from Boston to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston 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 Boston to London, as well as popular online travel agencies
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Cheap First Class Flight Deals from Boston to London

 
These are the cheapest deals for flights from Boston to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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 first class round-trip flight deals to London

ter, ago 25 - qua, set 9
British Airways Logo
7:35 pm - 7:10 am
BOS
-
LHR
6h 35mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$3,937British Airways
seg, ago 17 - qui, ago 27
British Airways Logo
7:35 pm - 7:10 am
BOS
-
LHR
6h 35mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$3,976British Airways
qua, jul 1 - qua, jul 8
British Airways Logo
9:50 pm - 9:35 am
BOS
-
LHR
6h 45mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$3,992British Airways
qui, ago 27 - qua, set 9
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$4,097British Airways
qui, ago 27 - qua, set 9
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$4,102British Airways
qui, ago 27 - qua, set 9
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$4,103British Airways
qui, ago 27 - qua, set 9
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$4,110British Airways
qui, ago 27 - qua, set 9
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$4,121British Airways
qui, ago 27 - qui, set 17
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
5:35 pm - 8:05 pm
LHR
-
BOS
7h 30mnonstop
$4,222British Airways
qui, ago 27 - ter, set 15
British Airways Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
$4,296British Airways

Good to Know - First Class Flights from Boston to London

Low seasonJanuary
Average price round-trip$4,947
Good deal round-trip$4,205
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 10% increase in price.
(avg. price over the last 2 weeks)
or less

When to book first class flights to London

Are your dates flexible? We break down the daily and monthly prices for first class flights to London, so you can find the best time to fly.
Average price per month
Flight prices as travel date approaches

KAYAK’s Insights & Trends for Boston to London First Class Flights

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

What is the cheapest month to fly First Class from Boston to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston 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 First Class flights from Boston to London is December, where tickets cost $4,543 (round-trip) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is $7,153 and $6,705 respectively.

Which airlines offer First Class tickets between Boston and London?

There are 2 airlines that fly First Class from Boston to London. They are: British Airways and American Airlines. The cheapest price of all airlines flying this route was found with British Airways at $4,034 for a round-trip flight. On average, the best prices for flying First Class on this route can be found at British Airways.

FAQs for First Class Boston to London Flights

  • How much is a first class ticket from Boston to London?

    The price of a first class flight ticket between Boston and London depends on many factors, like when the ticket was booked, the departure date, season and much more. The average price for all bookings made on KAYAK for this route over the last 2 weeks is $4,947 for a round-trip.

  • What is the best airline when flying first class between Boston and London?

    The highest-rated airline by KAYAK users offering first class flights for this route is Delta, with an overall rating of 7.9.

KAYAK's Tips for Finding Cheap First Class Flights from Boston to London

  • Try flying direct if you’re looking to save, as direct first class tickets are cheaper on average.

Reviews of the Top 5 Airlines Flying First Class from Boston to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Boston to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly first class 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 8399 reviews
7.8Comfort
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
Airline reviews

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

8.0 ExcellentAnonymous, May 2026
ATL - LHR
Read more Delta reviews

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

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. 😀

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

The flight was smooth, the crew was great but the plane was quite old

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

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

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.

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

Early departure meant on time arrival. Only real problem was free internet had issues, although chatting with the internet help desk (you can do this via aainflight.com) got the issue resolved.

The business class layout of chairs was weired. You are sitting directly across stranger.,

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

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.

First the flt was delayed over 2 hrs bc of plane mechanics that should have been handled better! No text or email was sent so only found out at the airport so there we sat for 5 hours! THATS RIDICULOUS! The gate area was filthy! No agents showed up till hr before so no additional info was given-waited online for 15 mins while the gate agent chatted and got together then given last seat in back of plane!! No priority for senior or anything-took attendants over 2hrs to serve drinks and snack-WHY are they not served together? By time snack came needed another drink! Worst service in my life!

Since we started at syr the service, crews, and flights were just excellent

All the TV screens in my rows was non functional . The map shown for an international route was antiqued..

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

We had better-than-average leg room and I loved the access to shows and movies. During boarding, we could not hear the agent even though we were close to the boarding door, which was kind of scary when we realized that half of the passengers had already boarded. Also, the entertainment was awesome, but I could not hear the movie as well as I would have liked, because my headphones were crappy. It would have been better if I could connect my own ear buds via Bluetooth or if JetBlue provided headphones.

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight did not have onboard charging and TV screen flickering.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Flight was good but temp in the cabin was cold.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Everything you need to know for your flight to London

Cabin class types available on flights from Boston to London

Cabin classes available on flights from Boston to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.