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Cheap flights from Boston to London

One-way from $250, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Thu, Nov 5Any priceFri, Nov 6Any priceSat, Nov 7Any priceSun, Nov 8$250Mon, Nov 9Any priceTue, Nov 10Any priceWed, Nov 11Any priceThu, Nov 12Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$250
American Airlines, flight AA 108Found yesterday, 1 adult
Check live price
7:15pmBostonSun, Nov 8
Travel time 6h 45m, nonstopBOSLHR
7:00amLondonMon, Nov 9
$252
TAP Air Portugal, flight TP 216Found 2 days ago, 1 adult
Check live price
10:10pmBostonFri, Nov 13
Travel time 11h 25m, 2 stopsBOSSTN
2:35pmLondonSat, Nov 14
$252
TAP Air Portugal, flight TP 216Found 2 days ago, 1 adult
Check live price
10:10pmBostonMon, Nov 16
Travel time 11h 25m, 2 stopsBOSSTN
2:35pmLondonTue, Nov 17
$253
TAP Air Portugal, flight TP 216Found 2 days ago, 1 adult
Check live price
10:10pmBostonSun, Nov 15
Travel time 11h 25m, 2 stopsBOSSTN
2:35pmLondonMon, Nov 16
$273
Icelandair, flight FI 630Found yesterday, 1 adult
Check live price
7:50pmBostonTue, Dec 8
Travel time 8h 25m, 1 stopBOSLHR
9:15amLondonWed, Dec 9

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in United KingdomTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in London, booked ahead at a fixed price.
    See options
  • Things to do in LondonPopular tours from $51.70 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for United Kingdom from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? With a UK or EU airline you may be owed up to £520 per person under UK261.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu12345678910111213141516171819202122232425–26–27–28–29$37030–31–

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8$2509–10–11–12–13$25214–15$25316$25217–18–19–20–21–22–23–24–25$27526–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8$2739–10–11–12–13–14–15$31216–17–18–19–20–21–22–23–2425262728293031
$252 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Nov 8, $250.

Lowest fares by month

In the fares found this week, November has the lowest: from $250 one-way, against $370 in October. Pick a month to see its cheapest date.

  1. Oct$370
  2. Nov$250
  3. Dec$273
  4. Janno fares yet
  5. Febno fares yet
  6. Marno fares yet
  7. Aprno fares yet
  8. May$292
  9. Junno fares yet
  10. Julno fares yet
  11. Aug$279
  12. Sep$281
$0$200$400Oct$250NovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$370Thu, Oct 291 stop
November$250Sun, Nov 8Nonstop
December$273Tue, Dec 81 stop
January 2027—
February 2027—
March 2027—
April 2027—
May 2027$292Sat, May 81 stop
June 2027—
July 2027—
August 2027$279Tue, Aug 101 stop
September 2027$281Tue, Sep 281 stop

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in London. Average daily high and low and monthly precipitation.

Oct2026NovDecJan2027FebMarAprMayJunJulAugSep
Lowest fare$370$250$273––––$292––$279$281
High °C16°12°9°8°9°12°15°18°22°24°23°20°
Low °C9°5°3°3°3°4°6°9°12°14°14°12°
Precipitation mm656757594539424647465350

Source: London on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

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

In the fares found this week, November has the lowest: from $250 one-way, against $370 in October.

What is the weather in London in November?

In November, the cheapest month to fly, the average daily high in London is 12 °C and the low 5 °C.

Are there direct flights from Boston to London?

Yes. Recent fares include nonstop flights with American Airlines.

How long is the flight from Boston to London?

A nonstop flight takes about 6h 45m. The distance is 3,256 mi.

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