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Cheap flights from Plymouth to London Heathrow Airport from £138

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 22/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LHR
17 Dec — 24 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 17 November 2025.

Mon 15/1215:15EXT - LHR
1 stop4h 35mBritish Airways
Mon 22/1206:55LHR - EXT
1 stop10h 50mBritish Airways
Deal found 15/11£291
Fri 12/1210:00EXT - LHR
1 stop6h 15mBritish Airways
Sun 11/106:50LHR - EXT
1 stop7h 55mBritish Airways
Deal found 15/11£297
Mon 1/1217:20EXT - LHR
1 stop25h 55mKLM
Fri 5/1217:50LHR - EXT
1 stop23h 00mKLM
Deal found 16/11£299
Mon 15/1209:25EXT - LHR
1 stop8h 40mMultiple Airlines
Mon 22/1206:55LHR - EXT
1 stop10h 50mMultiple Airlines
Deal found 14/11£308
Fri 28/1110:00EXT - LHR
1 stop6h 15mBritish Airways
Sun 30/1106:50LHR - EXT
1 stop4h 25mBritish Airways
Deal found 16/11£348
Mon 1/1215:15EXT - LHR
2 stops28h 35mMultiple Airlines
Fri 5/1207:50LHR - EXT
1 stop4h 30mMultiple Airlines
Deal found 16/11£411
Mon 17/1115:15EXT - LHR
1 stop5h 50mBritish Airways
Mon 24/1107:45LHR - EXT
1 stop10h 00mBritish Airways
Deal found 16/11£415
Mon 17/1109:25EXT - LHR
1 stop8h 40mMultiple Airlines
Tue 18/1115:00LHR - EXT
1 stop17h 55mMultiple Airlines
Deal found 16/11£468
Mon 17/1112:50EXT - LHR
1 stop8h 15mMultiple Airlines
Mon 24/1108:50LHR - EXT
2 stops8h 55mMultiple Airlines
Deal found 16/11£524

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 17 November 2025.

Round-trip from

£219

One-way from

£138

Popular in

March

Cheapest in

September

Average price

£333
KLM
  • KLM
  • 23/1-26/1
  • 2 total stops
  • 24h 40m total
  • Plymouth to London
Search Deals
22/11
  • 22/11
  • 1 total stop
  • 9h 35m total
  • Plymouth to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£10 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 17 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 23/1

17:20-07:40

1 stop14h 20m

London Heathrow

Mon 26/1

06:30-16:50

1 stop10h 20m

£219

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 12/1

12:50-19:50

1 stop7h 00m

London Heathrow

Thu 15/1

20:50-20:10

3 stops23h 20m

£232

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 22/1

13:15-17:50

1 stop4h 35m

London Heathrow

Sun 25/1

07:50-12:20

1 stop4h 30m

£250

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 22/1

13:15-17:50

1 stop4h 35m

London Heathrow

Mon 26/1

07:50-12:20

1 stop4h 30m

£253

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 12/1

12:50-16:50

1 stop4h 00m

London Heathrow

Thu 15/1

07:50-12:20

1 stop4h 30m

£254

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 22/1

13:15-17:50

1 stop4h 35m

London Heathrow

Mon 26/1

09:55-19:35

2 stops9h 40m

£269

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 3/3

15:00-20:25

1 stop5h 25m

London Heathrow

Fri 6/3

09:55-14:30

1 stop4h 35m

£275

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sun 10/5

17:20-09:00

1 stop15h 40m

London Heathrow

Sun 24/5

06:30-16:50

1 stop10h 20m

£275

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Fri 23/1

15:00-22:30

1 stop7h 30m

London Heathrow

Tue 27/1

17:30-14:30

1 stop21h 00m

£276

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Fri 23/1

15:00-22:30

1 stop7h 30m

London Heathrow

Wed 28/1

07:45-14:30

1 stop6h 45m

£276

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 19 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 £215). Flying from Plymouth to London Heathrow Airport in August is currently the most expensive (average of £370). 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 17 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.

How much does it cost for a return flight from Plymouth 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 17 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
1,411 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.7

Food

7.3

Boarding

7.8

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
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.7

Food

7.3

Boarding

7.8

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
7,528 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Overall

7.7

Food

7.3

Boarding

7.8

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 Aer Lingus can get you from Plymouth to London Heathrow Airport in just under 4h 35m. Your travel time can differ by up to 9h 45m. 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 £215). Flying from Plymouth to London Heathrow Airport in August is currently the most expensive (average of £370). 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 17 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£219Average£295FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£273Average£406FlexibilityNo 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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