What is the cheapest month to fly to London?

At the present moment the cheapest month to fly to London is currently November ; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

Can I find cheaper flights to London if I am willing to have layovers?

Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to London on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to London?

Based on reviews from Cheapflights users, Scandinavian Airlines is rated the highest out of the airlines that fly to London.

What is the cheapest airport to fly to in London?

London Gatwick is currently the cheapest airport to fly to in London. One-way flights to London Gatwick typically cost $14, while round-trip flights cost around $14.

How much is a round-trip flight to London?

A round-trip flight to London will typically cost around $750, however they can be found for as little as $56.

Where does the fastest flight to London depart from?

For those looking to save time traveling to London, Boston Logan Intl offers the quickest one-way flight (6 hours 25 minutes).

Which airport is closest to Kensington Palace?

If being close to Kensington Palace is important to you, you’ll want to land at London Heathrow Airport.

Does London Heathrow have rental cars?

Yes. Those touching down at London Heathrow can take advantage of the rental car services offered upon their arrival.

Are there hotels close to London Heathrow?

Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow is the closest property to London Heathrow (0.0 mi away from London Heathrow).

Most accurate provider : Out of all of the providers offering London flight deals, Cheapflights users have found AranGrant to have the most accurate pricing on Cheapflights vs. their site about >95% of the time, users can find the same price on London flight deals on Cheapflights and AranGrant. This is based on searches made for London flights over the past month.

Most trusted provider : AranGrant is the most trusted provider by Cheapflights users offering London flight deals. With a user feedback rating of 3 out of 3 stars (3 being the best), AranGrant has received the most positive sentiment from Cheapflights users searching for flights to London. This is based on data collected from Cheapflights searches made over the past month.

$187+ Flights to London, England - Compare & Save Big

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Flights to London in 2025

Popular in	December
Cheapest in	January
Average price	$581
Round-trip from	$438
One-way from	$187
Good round-trip deal	$520 or less
Good one-way deal	$169 or less

Highest demand for flights based on searches. 5% potential increase in price.

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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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From New York to London

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One-way flight from New York to London

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Price to beat on a round-trip flight from New York to London.

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Price to beat on a one-way flight from New York to London.

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Find flight deals to London

Cheapest flights to London
Explore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on April 29, 2025.

Tue 5/137:15 pmSWF - STN

1 stop10h 25mPLAY

Tue 5/2011:40 amSTN - SWF

1 stop11h 25mPLAY

Deal found 4/28$438

Thu 5/87:15 pmSWF - STN

2 stops15h 30mMultiple Airlines

Mon 5/128:15 amSTN - SWF

2 stops14h 50mMultiple Airlines

Deal found 4/27$462

Tue 9/235:10 pmJFK - LHR

1 stop11h 25mScandinavian Airlines

Tue 9/306:40 amLHR - JFK

2 stops38h 00mScandinavian Airlines

Deal found 4/27$508

Sat 8/168:25 pmJFK - LGW

1 stop10h 20mIcelandair

Thu 8/281:00 pmLGW - JFK

1 stop11h 10mIcelandair

Deal found 4/28$508

Tue 4/295:45 pmLGA - LHR

1 stop11h 15mAir Canada

Tue 5/62:05 pmLHR - LGA

1 stop12h 25mAir Canada

Deal found 4/27$510

Mon 5/58:25 pmJFK - LHR

1 stop18h 55mIcelandair

Sun 5/119:25 pmLHR - JFK

1 stop26h 45mIcelandair

Deal found 4/28$510

Mon 5/2611:55 pmJFK - STN

1 stop11h 10mMultiple Airlines

Wed 6/46:45 pmSTN - JFK

1 stop32h 15mMultiple Airlines

Deal found 4/28$510

Tue 5/138:05 pmJFK - LGW

Nonstop7h 05mBritish Airways

Tue 5/203:05 pmLGW - JFK

Nonstop8h 00mBritish Airways

Deal found 4/27$511

Wed 5/286:20 pmJFK - LGW

Nonstop7h 00mMultiple Airlines

Wed 6/48:25 pmLGW - JFK

2 stops30h 35mMultiple Airlines

Deal found 4/28$513

Sun 9/216:20 pmJFK - LGW

Nonstop7h 00mNorse Atlantic UK

Thu 9/251:05 pmLGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 4/27$514

Fri 5/167:25 pmJFK - LHR

1 stop13h 15mMultiple Airlines

Sun 5/187:45 amLHR - JFK

1 stop10h 15mMultiple Airlines

Deal found 4/28$517

Fri 5/25:30 pmJFK - LHR

2 stops14h 10mLufthansa

Sun 5/47:25 amLHR - JFK

1 stop12h 35mLufthansa

Deal found 4/28$520

Best flights to London
Discover carefully curated flight deals to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Tue 5/137:15 pmSWF - STN

1 stop10h 25mPLAY

Tue 5/2011:40 amSTN - SWF

1 stop11h 25mPLAY

Deal found 4/28$438

Thu 5/87:15 pmSWF - STN

2 stops14h 05mMultiple Airlines

Tue 5/139:25 pmSTN - SWF

2 stops25h 40mMultiple Airlines

Deal found 4/26$452

Tue 9/235:10 pmJFK - LHR

1 stop11h 25mScandinavian Airlines

Tue 9/306:40 amLHR - JFK

2 stops38h 00mScandinavian Airlines

Deal found 4/27$508

Sat 8/168:25 pmJFK - LGW

1 stop10h 20mIcelandair

Thu 8/281:00 pmLGW - JFK

1 stop11h 10mIcelandair

Deal found 4/28$508

Tue 5/138:05 pmJFK - LGW

Nonstop7h 05mBritish Airways

Tue 5/203:05 pmLGW - JFK

Nonstop8h 00mBritish Airways

Deal found 4/27$511

Sun 9/216:20 pmJFK - LGW

Nonstop7h 00mNorse Atlantic UK

Thu 9/251:05 pmLGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 4/27$514

Thu 5/87:45 pmLGA - LHR

1 stop11h 05mAir Canada

Thu 5/159:30 amLHR - LGA

1 stop13h 38mAir Canada

Deal found 4/27$523

Fri 5/167:25 pmJFK - LHR

1 stop13h 15mSWISS

Sun 5/188:45 amLHR - JFK

1 stop12h 50mSWISS

Deal found 4/28$528

Thu 5/159:45 pmJFK - LHR

1 stop29h 35mUnited Airlines

Sun 5/187:25 amLHR - JFK

1 stop12h 35mUnited Airlines

Deal found 4/28$529

Fri 8/19:35 pmJFK - LGW

Nonstop7h 25mDelta

Thu 8/1412:00 pmLGW - JFK

Nonstop8h 25mDelta

Deal found 4/28$546

Mon 5/129:00 pmJFK - LHR

Nonstop7h 15mVirgin Atlantic

Sun 5/183:45 pmLHR - JFK

Nonstop8h 05mVirgin Atlantic

Deal found 4/28$547

Thu 5/88:05 pmJFK - LGW

Nonstop7h 05mFinnair

Sat 5/173:05 pmLGW - JFK

Nonstop8h 00mFinnair

Deal found 4/28$552

Last-minute flights to London
Discover last-minute flight deals to London. Data last updated April 29, 2025 and is based on user searches.

Tue 4/295:45 pmLGA - LHR

1 stop11h 15mAir Canada

Tue 5/62:05 pmLHR - LGA

1 stop12h 25mAir Canada

Deal found 4/27$510

Fri 5/25:30 pmJFK - LHR

2 stops14h 10mLufthansa

Sun 5/47:25 amLHR - JFK

1 stop12h 35mLufthansa

Deal found 4/28$520

Mon 5/58:25 pmJFK - LHR

1 stop18h 55mIcelandair

Sun 5/119:25 pmLHR - JFK

1 stop26h 45mIcelandair

Deal found 4/28$510

Mon 5/58:25 pmJFK - LGW

1 stop10h 20mMultiple Airlines

Thu 5/81:05 pmLGW - JFK

Nonstop7h 50mMultiple Airlines

Deal found 4/27$511

Mon 5/58:25 pmJFK - LGW

1 stop10h 20mMultiple Airlines

Wed 5/147:10 amLGW - JFK

1 stop19h 30mMultiple Airlines

Deal found 4/28$512

Tue 5/67:15 pmSWF - STN

1 stop10h 25mPLAY

Tue 5/1311:40 amSTN - SWF

1 stop11h 25mPLAY

Deal found 4/28$448

Tue 5/66:20 pmJFK - LGW

Nonstop7h 00mNorse Atlantic UK

Tue 5/131:05 pmLGW - JFK

Nonstop7h 50mNorse Atlantic UK

Deal found 4/27$508

Tue 5/68:25 pmJFK - LGW

1 stop13h 15mIcelandair

Thu 5/293:40 pmLGW - JFK

1 stop11h 30mIcelandair

Deal found 4/28$515

Tue 5/68:05 pmJFK - LGW

Nonstop7h 05mBritish Airways

Mon 5/123:05 pmLGW - JFK

Nonstop8h 00mBritish Airways

Deal found 4/27$553

Wed 5/711:10 pmJFK - LHR

1 stop16h 10mMultiple Airlines

Thu 5/227:05 amLHR - JFK

1 stop19h 55mMultiple Airlines

Deal found 4/27$535

Wed 5/78:05 pmJFK - LGW

Nonstop7h 05mFinnair

Tue 5/133:05 pmLGW - JFK

Nonstop8h 00mFinnair

Deal found 4/27$545

Wed 5/74:15 pmJFK - LGW

1 stop20h 40mSWISS

Wed 5/146:35 pmLGW - JFK

1 stop23h 15mSWISS

Deal found 4/27$558

One-way flights to London
Search for one-way flight options to London. Find affordable one-way fares based on user searches. Data last updated April 29, 2025.

Sun 7/138:25 pmJFK - LHR

1 stop10h 30mIcelandair

Deal found 4/28$187

Mon 9/226:20 pmJFK - LGW

Nonstop7h 00mNorse Atlantic UK

Deal found 4/28$187

Sun 7/2011:10 pmJFK - LGW

1 stop10h 30mIcelandair

Deal found 4/28$188

Thu 7/1712:15 amJFK - LGW

1 stop26h 10mMultiple Airlines

Deal found 4/27$208

Wed 7/165:55 amLGA - LGW

1 stop20h 00mMultiple Airlines

Deal found 4/27$224

Thu 8/710:05 pmJFK - LHR

1 stop14h 40mTAP AIR PORTUGAL

Deal found 4/27$225

Mon 7/2810:05 pmJFK - LGW

2 stops17h 20mTAP AIR PORTUGAL

Deal found 4/28$229

Tue 7/2911:55 pmJFK - STN

1 stop17h 00mMultiple Airlines

Deal found 4/27$230

Wed 10/157:15 pmSWF - STN

1 stop10h 25mPLAY

Deal found 4/27$235

Fri 8/159:45 amJFK - LHR

Nonstop6h 55mRoyal Air Maroc

Deal found 4/28$236

Sat 5/310:55 pmJFK - LHR

Nonstop7h 10mBritish Airways

Deal found 4/28$237

Thu 9/1111:00 pmEWR - LHR

1 stop10h 15mMultiple Airlines

Deal found 4/28$238

Cheapflights Fare Finder

Use the filters below to find and compare flights to London that are best for you.

Fly from

Route

Depart

Return

Price

New WindsorLondon

SWF - STN

SWFSTN

New Windsor Stewart

Tue 5/13

7:15 pm-10:40 am

1 stop10h 25m

London Stansted

Tue 5/20

11:40 am-6:05 pm

1 stop11h 25m

$438

New WindsorLondon

SWF - STN

SWFSTN

New Windsor Stewart

Thu 5/8

7:15 pm-3:45 pm

2 stops15h 30m

London Stansted

Mon 5/12

8:15 am-6:05 pm

2 stops14h 50m

$462

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 9/23

5:10 pm-9:35 am

1 stop11h 25m

London Heathrow

Tue 9/30

6:40 am-3:40 pm

2 stops38h 00m

$508

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sat 8/16

8:25 pm-11:45 am

1 stop10h 20m

London Gatwick

Thu 8/28

1:00 pm-7:10 pm

1 stop11h 10m

$508

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Mon 5/26

11:55 pm-4:05 pm

1 stop11h 10m

London Stansted

Wed 6/4

6:45 pm-10:00 pm

1 stop32h 15m

$510

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Tue 5/13

8:05 pm-8:10 am

Nonstop7h 05m

London Gatwick

Tue 5/20

3:05 pm-6:05 pm

Nonstop8h 00m

$511

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 5/8

11:10 pm-8:20 pm

1 stop16h 10m

London Heathrow

Mon 5/12

9:25 pm-7:10 pm

1 stop26h 45m

$511

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 9/21

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Thu 9/25

1:05 pm-3:55 pm

Nonstop7h 50m

$514

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 5/8

7:45 pm-11:50 am

1 stop11h 05m

London Heathrow

Thu 5/15

9:30 am-6:08 pm

1 stop13h 38m

$523

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 8/5

6:10 pm-6:20 am

Nonstop7h 10m

London Heathrow

Sun 8/17

6:05 pm-9:00 pm

Nonstop7h 55m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 results

...

Compare providers for flights to London

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals to London in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Gotogate	Price Accuracy3 stars	Trust Score*2 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: Out of all of the providers offering London flight deals, Cheapflights users have found AranGrant to have the most accurate pricing on Cheapflights vs. their site about >95% of the time, users can find the same price on London flight deals on Cheapflights and AranGrant. This is based on searches made for London flights over the past month.
Most trusted provider: AranGrant is the most trusted provider by Cheapflights users offering London flight deals. With a user feedback rating of 3 out of 3 stars (3 being the best), AranGrant has received the most positive sentiment from Cheapflights users searching for flights to London. This is based on data collected from Cheapflights searches made over the past month.

Best time to book a flight to London

Have a flexible travel schedule? Discover the best time to fly to London with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to London

When is the best time to book a flight to London?

To ensure you get the cheapest price possible for a flight to London, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to London?

On average, a flight from New York to London takes 11 hours 57 minutes. Flights to London from other popular cities in USA will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to London?

Users looking for the lowest fares to London should consider flying on Monday at noon, when prices are typically cheapest. Budget-minded travelers will want to avoid Saturday evenings, when prices are usually at their highest.

Weekly flight availability to London

The most flights from New York to London are scheduled on a Monday (171 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (142 on average).

What are the most popular airlines that fly to London?

The most popular airlines flying from New York to London are British Airways, United Airlines and Delta.

British Airways

From $338

United Airlines

From $311

Delta

From $393

Virgin Atlantic

From $324

What are the cheapest airlines that fly to London?

The cheapest airlines flying from New York to London are SWISS, Lufthansa and Norse Atlantic UK.

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

If weather is an important factor for your trip to London, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Read through reviews of airlines servicing London, such as Delta, Porter Airlines and Air Transat. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

8.0

Very good

285 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat

7.8

Good

385 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,587 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

FAQs about flying to London

Can I find cheaper flights to London if I am willing to have layovers?
Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to London on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to London?
Based on reviews from Cheapflights users, Scandinavian Airlines is rated the highest out of the airlines that fly to London.
What is the cheapest airport to fly to in London?
London Gatwick is currently the cheapest airport to fly to in London. One-way flights to London Gatwick typically cost $14, while round-trip flights cost around $14.
How much is a round-trip flight to London?
A round-trip flight to London will typically cost around $750, however they can be found for as little as $56.
Where does the fastest flight to London depart from?
For those looking to save time traveling to London, Boston Logan Intl offers the quickest one-way flight (6 hours 25 minutes).
Which airport is closest to Kensington Palace?
If being close to Kensington Palace is important to you, you’ll want to land at London Heathrow Airport.
Does London Heathrow have rental cars?
Yes. Those touching down at London Heathrow can take advantage of the rental car services offered upon their arrival.
Are there hotels close to London Heathrow?
Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

Hayes

Hounslow

Thornton Heath

Luton

Horley

Canterbury

Harrow

Wembley

Dover

Gatwick

Orpington

Watford

Croydon

Borehamwood

Folkestone

Ilford

Aylesbury

Chelmsford

Sutton

Brentwood

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$187+ Cheap flights to London

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Flights to London in 2025

Find the latest flights to London in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 29, 2025.

Popular in

Cheapest in

Average price

Round-trip from

One-way from

Good round-trip deal

Good one-way deal

Find flight deals to London

Cheapest flights to LondonExplore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on April 29, 2025.

Explore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on April 29, 2025.

Cheapflights Fare Finder

Locate flights to London that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 29, 2025.

Use the filters below to find and compare flights to London that are best for you.

Compare providers for flights to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals to London in April.

Best time to book a flight to London

Have a flexible travel schedule? Discover the best time to fly to London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight to London

When is the best time to book a flight to London?

Use this chart to determine the optimal time to book a round-trip flight from New York to London. Price data was last updated on April 25, 2025.

How long is the flight to London?

When is the cheapest time to fly to London?

Use this chart to determine the cheapest time to fly round-trip from New York to London. Price data was last updated on September 8, 2024.

Weekly flight availability to London

What are the most popular airlines that fly to London?

What are the cheapest airlines that fly to London?

Rainfall in London by month

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

Temperature in London by month

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

Reviews of airlines servicing London

Read through reviews of airlines servicing London, such as Delta, Porter Airlines and Air Transat. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to London

Can I find cheaper flights to London if I am willing to have layovers?

What is the best airline to fly to London?

What is the cheapest airport to fly to in London?

How much is a round-trip flight to London?

Where does the fastest flight to London depart from?

Which airport is closest to Kensington Palace?

Does London Heathrow have rental cars?

Are there hotels close to London Heathrow?

Traveling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find the best flight deals to London

Some of the lowest fares we’ve come across for flights to London.

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Cheapest flights to London
Explore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on April 29, 2025.