Cheap flights from North America to London

LAX — LON
31 Aug — 7 Sep1
1 adult

Cheap flight deals from North America to London

Keep the following information in mind while searching for North America to London flight deals. Data was last updated 26 August 2025.

Round-trip from

£309

One-way from

£102

Popular in

December

Cheapest in

January

Average price

£414

Good round-trip deal

£135 or less

Good one-way deal

£110 or less
Iberia
  • Iberia
  • 26/9-28/9
  • 2 total stops
  • 42h 45m total
  • North America to London
Norse Atlantic UK
  • Norse Atlantic UK
  • 4/10
  • Nonstop
  • 7h 00m total
  • North America to London
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from North America to London (LON).
Price to beat on a one-way flight from North America to London (LON).

Cheapflights Insights

Everything you need to know about your flight from North America to London

What is the cheapest month to book a flight from North America to London?

Currently, January is the cheapest month in which you can book a flight from North America to London (average of £112). Flying from North America to London in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from NA to LON?

Find hourly flight availability from North America to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 August 2025.

When flying from North America to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 26 August 2025.
Get a feel of what it's like to fly with Virgin Atlantic, Norse Atlantic UK, andAir Canada from North America to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.9

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row

Food

6.9

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row
Norse Atlantic UK
7.2
Good

Food

6.9

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row

Food

6.9

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row

Food

6.9

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row

Food

6.9

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row

Related info for your journey

Find useful and relevant information for your journey from North America to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from North America to London?

    There are many flights that can get you from North America to London in 6h 55m. Fly via Norse Atlantic UK, LEVEL, or United Airlines to get the fastest option. The distance between North America and London is about 3458 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from North America to London one-way?

    The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as £103. However, be on the lookout for offers from TAP AIR PORTUGAL and Icelandair, as they are both options that can get you from North America to London for a low price.

  • What are the most popular routes from North America to London?

  • What are the most reliable airlines from North America to London?

    Before booking your flight to London from North America, check out the most reliable airlines to get you to your destination on time: KLM (94%), Air France (94%), Delta( 94%).

  • What are the cheapest flights from North America to London?

    Looking for the cheapest flight from North America to London? While on average our users pay £1,324, our data indicates the cheapest price to be £277. The most popular route (New York John F Kennedy Intl - London Heathrow), is priced around £271.

  • Can I find deals for flights from North America to London that include hotel bookings?

    Yes. In addition to deals on North America to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from North America to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from North America to London.

  • Can I find deals for business class flights from North America to London?

    Yes. Cheapflights offers flight deals from North America to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from North America to London?

    Currently, January is the cheapest month in which you can book a flight from North America to London (average of £112). Flying from North America to London in August is currently the most expensive (average of £164). 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.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Alternative routes for North America to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from North America to London

Discover the top 10 airlines that operate flights from North America to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£229Average£551FlexibilityNo cancel feeOn-time77%
Search Air France flights
IcelandairCheapest£257Average£438FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Norse Atlantic UKCheapest£269Average£455FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Virgin AtlanticCheapest£275Average£534FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£286Average£505FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£293Average£610FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest£294Average£581FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Scandinavian AirlinesCheapest£302Average£438FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£306Average£548FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£317Average£619FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from North America to London?

Deals for North America to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from North America to London?

Cheapflights helps you find that perfect flight to London from North America by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from North America to London with no change fees?

Certainly. Search results for flights to London from North America shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from North America to London become cheaper?

Yes! Start tracking prices for North America to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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