United Airlines Boston to London Flights

Return flight: London – Boston

Cheapflightsplus.com will find cheap United Airlines flights from Boston to London. Compare airline ticket prices and book air tickets starting from $351 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Boston (MA) — London by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in december: one-way - $351, two-way – $602.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
10:03 am — 5:55 am
+1 day
10:03 am — 11:30 am UA1219 United Airlines
Boston — Newark
6h stop
5:30 pm — 5:55 am UA146 United Airlines
Newark — London
14h 52m
including layover
Find flight
from$359
10:50 am — 7:10 am
+1 day
10:50 am — 12:15 pm UA8443 United Airlines
Boston — Montreal
7h stop
7:15 pm — 7:10 am UA8296 United Airlines
Montreal — London
15h 20m
including layover
Find flight
from$359
11:32 am — 5:55 am
+1 day
11:32 am — 1:01 pm UA592 United Airlines
Boston — Newark
4h 29m stop
5:30 pm — 5:55 am UA146 United Airlines
Newark — London
13h 23m
including layover
Find flight
from$352
11:32 am — 6:55 am
+1 day
11:32 am — 1:01 pm UA592 United Airlines
Boston — Newark
5h 39m stop
6:40 pm — 6:55 am UA14 United Airlines
Newark — London
14h 23m
including layover
Find flight
from$389
12:04 pm — 6:20 am
+1 day
12:04 pm — 1:30 pm UA1603 United Airlines
Boston — Newark
4h 30m stop
6:00 pm — 6:20 am UA110 United Airlines
Newark — London
13h 16m
including layover
Find flight
from$359
12:55 pm — 6:30 am
+1 day
12:55 pm — 2:55 pm UA8539 United Airlines
Boston — Toronto
3h 15m stop
6:10 pm — 6:30 am UA8306 United Airlines
Toronto — London
12h 35m
including layover
Find flight
from$357
2:00 pm — 6:55 am
+1 day
2:00 pm — 3:37 pm UA2454 United Airlines
Boston — Newark
3h 4m stop
6:40 pm — 6:55 am UA14 United Airlines
Newark — London
11h 55m
including layover
Find flight
from$351
2:00 pm — 6:20 am
+1 day
2:00 pm — 3:37 pm UA2454 United Airlines
Boston — Newark
2h 24m stop
6:00 pm — 6:20 am UA110 United Airlines
Newark — London
11h 20m
including layover
Find flight
from$352
3:40 pm — 7:10 am
+1 day
3:35 pm — 4:59 pm UA8483 United Airlines
Boston — Montreal
2h 10m stop
7:15 pm — 7:10 am UA8296 United Airlines
Montreal — London
10h 30m
including layover
Find flight
from$352
3:57 pm — 9:10 am
+1 day
3:57 pm — 5:30 pm UA1977 United Airlines
Boston — Newark
3h 25m stop
8:55 pm — 9:10 am UA16 United Airlines
Newark — London
12h 13m
including layover
Find flight
from$351
4:09 pm — 10:15 am
+1 day
4:09 pm — 5:47 pm UA1296 United Airlines
Boston — Newark
4h 13m stop
10:00 pm — 10:15 am UA940 United Airlines
Newark — London
13h 6m
including layover
Find flight
from$359
4:40 pm — 8:30 am
+1 day
4:40 pm — 6:52 pm UA8471 United Airlines
Boston — Toronto
1h 18m stop
8:10 pm — 8:30 am UA8268 United Airlines
Toronto — London
10h 50m
including layover
Find flight
from$361
5:50 pm — 10:15 am
+1 day
5:25 pm — 7:00 pm UA1606 United Airlines
Boston — Newark
2h 44m stop
10:00 pm — 10:15 am UA940 United Airlines
Newark — London
11h 25m
including layover
Find flight
from$351
5:50 pm — 9:10 am
+1 day
5:25 pm — 7:00 pm UA1606 United Airlines
Boston — Newark
1h 39m stop
8:55 pm — 9:10 am UA16 United Airlines
Newark — London
10h 20m
including layover
Find flight
from$352
6:00 am — 8:35 pm
6:00 am — 7:29 am UA1833 United Airlines
Boston — Newark
56m stop
8:25 am — 8:35 pm UA934 United Airlines
Newark — London
9h 35m
including layover
Find flight
from$352
6:55 pm — 10:15 am
+1 day
6:55 pm — 8:30 pm UA521 United Airlines
Boston — Newark
1h 35m stop
10:00 pm — 10:15 am UA940 United Airlines
Newark — London
10h 20m
including layover
Find flight
from$352
7:30 pm — 11:50 am
+1 day
7:30 pm — 9:32 pm UA8611 United Airlines
Boston — Toronto
2h 8m stop
11:40 pm — 11:50 am UA8384 United Airlines
Toronto — London
11h 20m
including layover
Find flight
from$358
7:38 pm — 10:50 am
+1 day
7:38 pm — 9:25 pm UA2136 United Airlines
Boston — Washington D.C.
50m stop
10:15 pm — 10:50 am UA924 United Airlines
Washington D.C. — London
10h 12m
including layover
Find flight
from$389
9:55 pm — 4:20 pm
+1 day
9:55 pm — 11:10 am UA9721 United Airlines
Boston — Zurich
4h 20m stop
3:30 pm — 4:20 pm LX324 SWISS International Air Lines
Zurich — London
13h 25m
including layover
Find flight
from$361
9:55 pm — 1:00 pm
+1 day
9:55 pm — 11:10 am UA9721 United Airlines
Boston — Zurich
1h stop
12:10 pm — 1:00 pm LX332 SWISS International Air Lines
Zurich — London
10h 5m
including layover
Find flight
from$362
*Departure and arrival times are local. Last updated on 12/06/2024

Flight Information

There are 54 flights by United Airlines from Boston to London every week with departures from Logan, Boston City Heliport, Boston RT128 Rail, Boston South Rail. All flights arrive at Gatwick, London City, Heathrow, Luton, Stansted, Stratford International Rail St, Ebbsfleet International Rail St, London Biggin Hill, London-Waterloo, British Rail Terminal.

Departures start from 10:03 am to 9:55 pm. Nonstop flight is 9h 35m. The time difference between Boston and London is 5h.

  • The fastest flight 9h 35m
  • Average flight time 11h 55m
  • The earliest flight 10:03 am
  • The latest flight 9:55 pm
  • Distance 3270 ml

The cheapest months for traveling to London are december (from 351 $), january (from 353 $), february (from 354 $).

The most expensive and popular months are november (from 402 $), february (from 354 $), january (from 353 $).

The cheapest flight by United Airlines that our users were able to find is $351. This airfare is economy class on one-way UA2454 flight for December 12, 2024 leaving Logan in Boston at 2:00 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 19 airline carriers between Boston and London. Please review schedules and prices from the most popular airlines to find the best airfare deals from Boston to London.

Nonstop flights

There are 10 direct flights every day from Boston. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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