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Cheap First Class flights to Boston

LHR — BOS
13 juil. — 20 juil.1
1 adult

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Cheap first class flights to Boston in 2025

Find the latest flights to Boston in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data were last updated on 8 juillet 2025.

Average Price

£2,699

Cheapest Price

£1,910

Top Rated Airline

Finnair

No. of Airlines

4

Arrival Airport

Boston Logan Intl Airport
Average for return first class flights in July 2025
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Cheapest first class flights to Boston
Explore the most affordable first class flight options available to Boston. Find the lowest fares based on data from user searches, with prices last updated on 8 juillet 2025.

mar. 16/914:40LHR - BOS
Nonstop7h 30mBritish Airways
lun. 29/919:40BOS - LHR
Nonstop6h 40mBritish Airways
Deal found 6/7£4,093
mar. 16/914:10LHR - BOS
1 stop13h 40mFinnair
lun. 29/907:45BOS - LHR
1 stop18h 55mFinnair
Deal found 6/7£4,222
sam. 23/809:45LHR - BOS
1 stop12h 10mAmerican Airlines
lun. 8/914:16BOS - LHR
1 stop11h 04mAmerican Airlines
Deal found 7/7£4,438

Travel insights for first class flights from United Kingdom to Boston

Get recent, data-driven insights about first class flights from United Kingdom to Boston including ideal travel times, pricing trends, and more.

What is the cheapest month to book a First Class flight from United Kingdom to Boston?

Currently, April is the cheapest month in which you can book a First Class flight from United Kingdom to Boston (average of £1,671). Flying from United Kingdom to Boston in January is currently the most expensive (average of £4,421). There are several factors that can impact the price of a flight, so comparing airlines, departure airports, and flight times can provide users with more options.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

Frequently asked questions about Boston first class tickets

Find answers to common questions related to first class tickets for flights to Boston. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on 8 juillet 2025.

  • What is the cheapest price for a First Class ticket to Boston?

    If you are flexible with your travel dates and origin, you might only have to pay £1,910 for a First Class class flight to Boston (lowest price found recently). Our data shows that the average price for a First Class ticket to Boston is about £2,699/traveller.

  • How many premium cabins does Finnair have for flights to Boston?

    Finnair currently offers a couple premium cabin classes on flights to Boston: Prem Economy Class, Business Class and First Class. Still not enough? Try taking a look at other airlines or choosing a new departing point for more cabin options.

  • What is the cheapest month to book a First Class flight from United Kingdom to Boston?

    Currently, April is the cheapest month in which you can book a First Class flight from United Kingdom to Boston (average of £1,671). Flying from United Kingdom to Boston in January is currently the most expensive (average of £4,421). There are several factors that can impact the price of a flight, so comparing airlines, departure airports, and flight times can provide users with more options.

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