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Cheap First Class flights to Boston

LHR — BOS
28 May — 4 Jun1
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 23 May 2025.

Average Price

£3,289

Cheapest Price

£2,033

Top Rated Airline

Finnair

No. of Airlines

6

Arrival Airport

Boston Logan Intl Airport
Average for return first class flights in May 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 23 May 2025.

Wed 9/714:40LHR - BOS
Nonstop7h 30mBritish Airways
Wed 16/707:25BOS - LHR
Nonstop6h 30mBritish Airways
Deal found 22/5£4,350
Wed 9/716:20LHR - BOS
1 stop12h 14mAmerican Airlines
Wed 16/721:55BOS - LHR
Nonstop6h 35mAmerican Airlines
Deal found 22/5£4,557

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.

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 23 May 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 £2,033 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 £3,289/traveller.

  • How much do Business Class flight tickets to Boston cost?

    About £2,487 per person. If you plan to fly Business Class to Boston, note that Business Class cabin tickets are usually 25% lower than First Class cabin tickets.

  • 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.

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