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Cheap flights from Plymouth to London Heathrow Airport from £133

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 31/12. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LHR
24 Dec — 31 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Plymouth to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Plymouth to Heathrow
Explore the most affordable flight options available from Plymouth to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 November 2025.

Tue 9/1208:30EXT - LHR
1 stop9h 35mMultiple Airlines
Sat 13/1219:00LHR - EXT
1 stop15h 55mMultiple Airlines
Deal found 24/11£291
Tue 23/1213:15EXT - LHR
1 stop7h 10mMultiple Airlines
Tue 30/1206:40LHR - EXT
1 stop8h 50mMultiple Airlines
Deal found 23/11£299
Wed 24/1212:45EXT - LHR
1 stop24h 10mMultiple Airlines
Wed 31/1207:00LHR - EXT
1 stop26h 30mMultiple Airlines
Deal found 23/11£302
Tue 23/1213:15EXT - LHR
1 stop5h 15mBritish Airways
Tue 30/1206:40LHR - EXT
1 stop8h 50mBritish Airways
Deal found 23/11£305
Sun 7/1217:20EXT - LHR
1 stop14h 20mKLM
Thu 11/1206:30LHR - EXT
1 stop10h 20mKLM
Deal found 22/11£321
Sun 7/1212:50EXT - LHR
1 stop19h 15mMultiple Airlines
Thu 11/1220:50LHR - EXT
2 stops23h 20mMultiple Airlines
Deal found 22/11£323
Tue 25/1108:30EXT - LHR
1 stop23h 50mMultiple Airlines
Tue 2/1214:05LHR - EXT
1 stop3h 40mMultiple Airlines
Deal found 24/11£329
Fri 5/1210:00EXT - LHR
1 stop6h 15mBritish Airways
Sun 7/1206:50LHR - EXT
1 stop4h 15mBritish Airways
Deal found 23/11£335
Sat 13/1208:30EXT - LHR
1 stop3h 15mMultiple Airlines
Sat 13/1219:00LHR - EXT
1 stop15h 55mMultiple Airlines
Deal found 24/11£343
Sun 21/1211:25EXT - LHR
1 stop7h 00mMultiple Airlines
Tue 23/1217:30LHR - EXT
1 stop21h 30mMultiple Airlines
Deal found 24/11£366
Mon 8/1209:25EXT - LHR
1 stop8h 40mMultiple Airlines
Fri 12/1207:10LHR - EXT
1 stop5h 20mMultiple Airlines
Deal found 23/11£376
Mon 8/1209:25EXT - LHR
1 stop8h 40mMultiple Airlines
Thu 11/1215:10LHR - EXT
1 stop4h 05mMultiple Airlines
Deal found 22/11£386

Cheap flight deals from Plymouth to Heathrow

Keep the following information in mind while searching for Plymouth to Heathrow flight deals. Data was last updated 24 November 2025.

Round-trip from

£242

One-way from

£133

Popular in

March

Cheapest in

September

Average price

£335
KLM
  • KLM
  • 30/1-2/2
  • 2 total stops
  • 41h 45m total
  • Plymouth to London
Search Deals
British Airways
  • British Airways
  • 31/12
  • 1 total stop
  • 7h 45m total
  • Plymouth to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Plymouth 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 24 November 2025.
Use the filters below to find and compare flights from Plymouth to London Heathrow Airport that are best for you.

Fly from

Plymouth

Fly to

Heathrow

Route

Depart

Return

Price

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Fri 30/1

17:20-12:05

1 stop18h 45m

London Heathrow

Mon 2/2

17:50-16:50

1 stop23h 00m

£242

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sat 21/2

08:30-11:45

1 stop3h 15m

London Heathrow

Sat 21/2

19:00-14:45

1 stop19h 45m

£275

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 12/1

15:00-21:05

1 stop6h 05m

London Heathrow

Fri 16/1

07:10-14:30

1 stop7h 20m

£276

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 9/12

08:30-18:05

1 stop9h 35m

London Heathrow

Sat 13/12

19:00-10:55

1 stop15h 55m

£291

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 23/12

13:15-20:25

1 stop7h 10m

London Heathrow

Tue 30/12

06:40-15:30

1 stop8h 50m

£299

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 23/12

13:15-18:30

1 stop5h 15m

London Heathrow

Tue 30/12

06:40-15:30

1 stop8h 50m

£305

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Fri 30/1

08:10-19:15

2 stops11h 05m

London Heathrow

Mon 2/2

07:50-12:20

1 stop4h 30m

£308

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sun 7/12

17:20-07:40

1 stop14h 20m

London Heathrow

Thu 11/12

06:30-16:50

1 stop10h 20m

£321

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sun 7/12

12:50-08:05

1 stop19h 15m

London Heathrow

Thu 11/12

20:50-20:10

2 stops23h 20m

£323

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sat 13/12

08:30-11:45

1 stop3h 15m

London Heathrow

Sat 13/12

19:00-10:55

1 stop15h 55m

£343

Flights are sorted by cheapest return flights first.

Deals found on 22/11

Showing 1-10 of 16 results
1
2

Best time to book a flight from Plymouth to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Plymouth 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 Plymouth to London Heathrow Airport

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

Currently, September is the cheapest month in which you can book a flight from Plymouth to London Heathrow Airport (average of £216). Flying from Plymouth to London Heathrow Airport in August is currently the most expensive (average of £372). 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 P1Y to LHR?

Find hourly flight availability from Plymouth 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 24 November 2025.

It’s typically best to fly out from Plymouth to London Heathrow Airport in the morning. Doing so could potentially save you 17% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from Plymouth to Heathrow. Price data was last updated on 2 November 2025.

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

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 24 November 2025.
See what other customers who have flown with KLM and British Airways from Plymouth to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,420 reviews
Check prices

Boarding

7.8

Comfort

7.6

Overall

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,420 reviews
KLM
7.7
Good
1,420 reviews
Check prices

Boarding

7.8

Comfort

7.6

Overall

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,536 reviews
KLM
7.7
Good
1,420 reviews
Check prices

Boarding

7.8

Comfort

7.6

Overall

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Plymouth to Heathrow. 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 Plymouth to London Heathrow Airport?

    KLM and British Airways can get you from Plymouth to London Heathrow Airport in just under 6h 05m. Your travel time can differ by up to 12h 40m. The distance from Plymouth to London Heathrow Airport is about 138 mi. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Plymouth to London Heathrow Airport (average of £216). Flying from Plymouth to London Heathrow Airport in August is currently the most expensive (average of £372). 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
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

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Top 2 airlines flying from Plymouth to Heathrow

Discover the top 2 airlines that operate flights from Plymouth 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 24 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£220Average£297FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£275Average£408FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Plymouth to Heathrow?

Cheapflights makes it easy to find Plymouth to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Plymouth to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Plymouth to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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