Boston to London First Class Flights (BOS-LON)

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The Latest First Class Flight Deals from Boston to London

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One-way

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Recent first class round-trip flight deals to London

Enter your travel dates to find the best prices.

9:50 pm - 9:35 am

BOS

LHR

6h 45mnonstop

2:30 pm - 5:00 pm

LHR

BOS

7h 30mnonstop

$4,157British Airways

Tue, Aug 18 - Wed, Aug 26

9:50 pm - 9:35 am

BOS

LHR

6h 45mnonstop

8:10 pm - 10:35 pm

LHR

BOS

7h 25mnonstop

$4,332British Airways

Thu, Aug 13 - Thu, Aug 20

7:25 am - 6:55 pm

BOS

LHR

6h 30mnonstop

5:35 pm - 8:05 pm

LHR

BOS

7h 30mnonstop

$4,401British Airways

Fri, Aug 21 - Wed, Aug 26

7:25 am - 6:55 pm

BOS

LHR

6h 30mnonstop

8:10 pm - 10:35 pm

LHR

BOS

7h 25mnonstop

$4,532British Airways

Thu, Aug 27 - Wed, Sep 9

7:25 am - 6:55 pm

BOS

LHR

6h 30mnonstop

8:10 pm - 10:35 pm

LHR

BOS

7h 25mnonstop

$4,543British Airways

Thu, Aug 27 - Wed, Sep 9

7:25 am - 6:55 pm

BOS

LHR

6h 30mnonstop

7:10 pm - 10:50 pm

LHR

BOS

7h 40mnonstop

$5,392British Airways

Tue, Sep 29 - Wed, Oct 28

9:50 pm - 9:35 am

BOS

LHR

6h 45mnonstop

8:10 pm - 10:35 pm

LHR

BOS

7h 25mnonstop

$5,449British Airways

Thu, Aug 27 - Wed, Sep 9

9:50 pm - 9:35 am

BOS

LHR

6h 45mnonstop

8:10 pm - 10:35 pm

LHR

BOS

7h 25mnonstop

$5,749British Airways

Thu, Aug 27 - Wed, Sep 9

7:35 pm - 7:10 am

BOS

LHR

6h 35mnonstop

2:30 pm - 5:00 pm

LHR

BOS

7h 30mnonstop

$5,750British Airways

Thu, Aug 6 - Thu, Aug 13

7:40 pm - 7:10 am

BOS

LHR

6h 30mnonstop

8:10 pm - 10:35 pm

LHR

BOS

7h 25mnonstop

$5,878British Airways

Tue, Sep 8 - Thu, Sep 10

First Class Flights from Boston to London

Get data-powered insights and trends for First Class flights from Boston to London to help you craft the best travel plan

What cabin class options are available on Boston to London flights?

There are 4 cabin classes available to choose from on Boston to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies First Class from Boston to London?

Aer Lingus, British Airways, and American Airlines are popular carriers operating the cheapest First Class flights from Boston to London

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

The month of December is, on average, the cheapest month to fly First Class to London from Boston, with most prices found around $4,543. If you aren’t able to travel during the month of December, then book flights to London from Boston during February instead. Flights to Boston in February, while not as cheap as those in December, still average around $4,773.

About First Class Flights from Boston to London

Helpful overview information on London First Class ticket prices, flight duration, and airlines

Best Price Found	$3,575
Fastest flight time	6h 30m
Direct flights	Every day
Airports in London	6 airports

The best one-way flight to London from Boston in the past 72 hours is $3,575. The best round-trip flight deal from Boston to London found on momondo in the last 72 hours is $5,380.

The fastest flight from Boston to London takes 6h 30m

Direct flights go from Boston to London every day.

There are 6 airports in London. From Boston there are direct flights to London Heathrow (LHR).

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Frequently Asked Questions About First Class Flights from Boston to London

How much does a first class flight from Boston to London cost?

On average, first class flights start at $4,997, depending on departure dates and origin. The cheapest first class ticket for this route found most recently is $3,140.

When did momondo last update prices for flights from Boston Logan Intl Airport to London?

Prices for flights from Boston Logan Intl Airport to London were last updated today.

How many operators does momondo search for flights from Boston Logan Intl Airport to London?

There are 17 operators available for flights from Boston Logan Intl Airport to London as of July 2026.

How old do you have to be to fly from Boston Logan Intl Airport to London?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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First Class Flights from Boston to London in 2026

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

The Latest First Class Flight Deals from Boston to London

Recent first class round-trip flight deals to London

Recent first class one-way flight deals to London

Quickest first class round-trip flight deals to London

Quickest first class one-way flight deals to London

Best first class round-trip flight deals to London

Best first class one-way flight deals to London

First Class Flights from Boston to London

What cabin class options are available on Boston to London flights?

What is the cheapest airline that flies First Class from Boston to London?

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

About First Class Flights from Boston to London

Best Price Found

Fastest flight time

Direct flights

Airports in London

Frequently Asked Questions About First Class Flights from Boston to London

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Airports near London

Airports listed have a maximum distance of 24.0 mi from London

Popular flights to London

Popular flights according to clicks in the last 7 days on momondo

Other cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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