Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Prague to London Heathrow Airport from £42

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — LHR
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Václav Havel Prague to London Heathrow are usually found in January or March, booked 46 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from Prague to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Prague to Heathrow
Explore the most affordable flight options available from Prague to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Sat 31/114:55
PRG
-
LHR
Nonstop2h 15m
British Airways
Sun 1/219:50
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 20/1£90
Fri 17/420:55
PRG
-
LHR
Nonstop2h 00m
British Airways
Sun 19/406:50
LHR
-
PRG
Nonstop1h 55m
British Airways
Deal found 21/1£91
Thu 12/321:30
PRG
-
LHR
Nonstop2h 10m
British Airways
Sun 15/307:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 20/1£92
Sun 8/306:50
PRG
-
LHR
Nonstop2h 25m
British Airways
Sun 15/307:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 21/1£92
Sat 7/319:15
PRG
-
LHR
Nonstop2h 10m
British Airways
Sat 14/307:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 21/1£93
Thu 5/318:35
PRG
-
LHR
Nonstop2h 10m
British Airways
Mon 9/307:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 21/1£94
Tue 16/621:15
PRG
-
LHR
Nonstop2h 00m
British Airways
Wed 24/608:35
LHR
-
PRG
Nonstop1h 55m
British Airways
Deal found 20/1£95
Wed 1/721:20
PRG
-
LHR
Nonstop2h 00m
British Airways
Mon 6/706:35
LHR
-
PRG
Nonstop1h 55m
British Airways
Deal found 20/1£95
Sat 14/219:15
PRG
-
LHR
Nonstop2h 10m
British Airways
Sun 22/207:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 21/1£96
Thu 26/206:45
PRG
-
LHR
Nonstop2h 25m
British Airways
Sun 1/307:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 20/1£97
Thu 18/621:35
PRG
-
LHR
Nonstop2h 00m
British Airways
Mon 22/606:35
LHR
-
PRG
Nonstop1h 55m
British Airways
Deal found 21/1£98
Fri 27/206:00
PRG
-
LHR
Nonstop2h 25m
British Airways
Mon 2/307:05
LHR
-
PRG
Nonstop2h 00m
British Airways
Deal found 22/1£98

Find flight deals from Prague to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Prague (PRG) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2026.

Round-trip from

£90

One-way from

£42

Popular in

April

Cheapest in

January

Average price

£93

Good round-trip deal

£117 or less

Good one-way deal

£50 or less
British Airways
  • British Airways
  • 15/3-31/3
  • Nonstop
  • 4h 30m total
  • Prague to London
Search Deals
British Airways
  • British Airways
  • 7/3
  • Nonstop
  • 2h 10m total
  • Prague to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Václav Havel Prague to London Heathrow.
Search Deals
Price to beat on a one-way flight from Václav Havel Prague to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Prague to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from Prague to London Heathrow Airport that are best for you.

Fly from

Prague

Fly to

Heathrow

Route

Depart

Return

Price

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Fri 1/5

20:55-21:55

Nonstop2h 00m

London Heathrow

Mon 4/5

06:35-09:30

Nonstop1h 55m

£92

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Fri 15/5

20:55-21:55

Nonstop2h 00m

London Heathrow

Mon 18/5

20:25-23:15

Nonstop1h 50m

£93

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Sat 21/3

07:40-09:05

Nonstop2h 25m

London Heathrow

Sun 22/3

07:05-10:05

Nonstop2h 00m

£94

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Thu 5/3

18:35-19:45

Nonstop2h 10m

London Heathrow

Mon 9/3

07:05-10:05

Nonstop2h 00m

£94

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Fri 6/3

19:00-20:10

Nonstop2h 10m

London Heathrow

Sun 8/3

07:05-10:05

Nonstop2h 00m

£94

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Sat 14/3

14:55-16:10

Nonstop2h 15m

London Heathrow

Tue 17/3

17:30-20:35

Nonstop2h 05m

£95

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Wed 1/7

21:20-22:20

Nonstop2h 00m

London Heathrow

Mon 6/7

06:35-09:30

Nonstop1h 55m

£95

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Fri 27/2

06:00-07:25

Nonstop2h 25m

London Heathrow

Mon 2/3

17:40-20:45

Nonstop2h 05m

£97

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Thu 18/6

21:35-22:35

Nonstop2h 00m

London Heathrow

Mon 22/6

06:35-09:30

Nonstop1h 55m

£98

PragueLondon

PRG - LHR

PRGLHR

Václav Havel Prague

Fri 27/2

06:00-07:25

Nonstop2h 25m

London Heathrow

Sun 1/3

07:05-10:05

Nonstop2h 00m

£99

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 20 results
1
2

Best time to book a flight from Prague to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Prague with our price prediction graph.
Estimated return 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 from Prague to London Heathrow Airport

How far ahead should I book a flight from Prague to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Prague to Heathrow. Price data was last updated on 16 January 2026.

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Prague to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Prague to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Prague to London Heathrow Airport (average of £74). Flying from Prague to London Heathrow Airport in August is currently the most expensive (average of £135). 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 PRG to LHR?

Find hourly flight availability from Prague to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2026.

It’s typically best to fly out from Prague to London Heathrow Airport in the afternoon. Doing so could potentially save you 72% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Prague to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Prague to Heathrow. Price data was last updated on 17 January 2026.

Travellers seeking maximum savings on their Prague to London Heathrow Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from Prague to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 22 January 2026.
Check out reviews from past customers who have flown with British Airways from Prague to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,689 reviews
Check prices

Crew

7.6

Food

6.4

Overall

6.7

Boarding

6.9

Comfort

6.8

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,689 reviews
British Airways
6.7
Okay
7,689 reviews
Check prices

Crew

7.6

Food

6.4

Overall

6.7

Boarding

6.9

Comfort

6.8

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from Prague to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Prague to London Heathrow?

    Most people fly from Václav Havel Prague (PRG) if they book a flight from Prague to London Heathrow. On average, Václav Havel Prague has 4 outbound flights to London Heathrow per day from 1 airline. Václav Havel Prague is conveniently located just 6.9 mi from Prague’s city center.

  • How long is the flight from Prague to London Heathrow Airport?

    There are many flights that can get you from Prague to London Heathrow Airport in 2h. Fly via British Airways to get the fastest option. The distance from Prague to London Heathrow Airport is about 648 mi. All flights are typically direct.

  • What is the cheapest airline to fly from Prague to London Heathrow Airport round-trip?

    British Airways, at £95, was found to be the cheapest airline from Prague to London Heathrow Airport.. British Airways is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Prague to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Prague to London Heathrow Airport consider choosing Cathay Pacific (75%), American Airlines (74%) or British Airways (72%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Prague to London Heathrow Airport?

    Looking for the cheapest flight from Prague to London Heathrow Airport? While on average our users pay £203, our data indicates the cheapest price to be £42. The most popular route (Václav Havel Prague - London Heathrow), is priced around £90.

  • Can I find deals for flights from Prague to Heathrow that include hotel bookings?

    Yes. In addition to deals on Prague to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Prague to Heathrow?

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

  • Can I find deals for business class flights from Prague to Heathrow?

    Yes. Cheapflights offers flight deals from Prague to Heathrow 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 Prague to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Prague to London Heathrow Airport (average of £74). Flying from Prague to London Heathrow Airport in August is currently the most expensive (average of £135). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Northampton
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Colchester
Watford
Swindon
Crawley
Bedford
Kingston upon Thames
Chelmsford
Eastbourne
Romford

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.

Alternative routes for Prague to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Prague to London City flights
Prague to Gatwick flights
Prague to Luton flights
Prague to Stansted flights
Prague to Southend flights

Top airline flying from Prague to Heathrow

Discover the top airline that operate flights from Prague to Heathrow. 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£95Average£152FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Prague to Heathrow?

Cheapflights helps you search for flights from Prague to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Prague to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Prague.

Can Cheapflights find flights from Prague to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Prague to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Prague to Heathrow become cheaper?

Yes! Start tracking prices for Prague to Heathrow 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.