Cheap flights from Plymouth to London Heathrow Airport from £119

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LHR
31 Aug — 7 Sep1
1 adult

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 26 August 2025.

Round-trip from

£196

One-way from

£119

Popular in

March

Cheapest in

January

Average price

£474
9/10-16/10
  • 9/10-16/10
  • 2 total stops
  • 14h 45m total
  • Plymouth to London
Aer Lingus
  • Aer Lingus
  • 10/10
  • 1 total stop
  • 5h 50m total
  • Plymouth to London
Highest demand for flights based on searches. 8% potential increase in price (£24 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Plymouth to Heathrow

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 26 August 2025.

Thu 9/1012:25EXT - LHR
1 stop9h 10mMultiple Airlines
Thu 16/1006:20LHR - EXT
1 stop5h 35mMultiple Airlines
Deal found 25/8£196
Thu 23/1017:15EXT - LHR
1 stop15h 45mKLM
Mon 27/1011:45LHR - EXT
1 stop5h 15mKLM
Deal found 24/8£220
Thu 9/1012:25EXT - LHR
1 stop6h 30mAer Lingus
Wed 15/1007:40LHR - EXT
1 stop4h 05mAer Lingus
Deal found 25/8£230
Tue 14/1013:00EXT - LHR
1 stop8h 40mMultiple Airlines
Thu 16/1007:40LHR - EXT
1 stop4h 15mMultiple Airlines
Deal found 25/8£235
Thu 9/1012:25EXT - LHR
1 stop6h 30mAer Lingus
Thu 16/1007:40LHR - EXT
1 stop4h 15mAer Lingus
Deal found 25/8£236
Wed 24/917:15EXT - LHR
1 stop15h 45mKLM
Wed 1/1011:45LHR - EXT
1 stop5h 00mKLM
Deal found 25/8£262
Thu 9/1012:25EXT - LHR
2 stops19h 30mMultiple Airlines
Wed 15/1007:40LHR - EXT
1 stop4h 05mMultiple Airlines
Deal found 25/8£269
Mon 8/912:15EXT - LHR
1 stop8h 05mAer Lingus
Mon 15/921:10LHR - EXT
1 stop14h 35mAer Lingus
Deal found 25/8£286
Mon 22/912:15EXT - LHR
1 stop7h 10mAer Lingus
Mon 29/907:40LHR - EXT
1 stop4h 05mAer Lingus
Deal found 25/8£295

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 26 August 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

Thu 9/10

12:25-21:35

1 stop9h 10m

London Heathrow

Thu 16/10

06:20-11:55

1 stop5h 35m

£196

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 23/10

17:15-09:00

1 stop15h 45m

London Heathrow

Mon 27/10

11:45-17:00

1 stop5h 15m

£220

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 9/10

12:25-18:55

1 stop6h 30m

London Heathrow

Wed 15/10

07:40-11:45

1 stop4h 05m

£230

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 14/10

13:00-21:40

1 stop8h 40m

London Heathrow

Thu 16/10

07:40-11:55

1 stop4h 15m

£235

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 9/10

12:25-18:55

1 stop6h 30m

London Heathrow

Thu 16/10

07:40-11:55

1 stop4h 15m

£236

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 24/9

17:15-09:00

1 stop15h 45m

London Heathrow

Wed 1/10

11:45-16:45

1 stop5h 00m

£262

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Thu 9/10

12:25-07:55

2 stops19h 30m

London Heathrow

Wed 15/10

07:40-11:45

1 stop4h 05m

£269

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 8/9

12:15-20:20

1 stop8h 05m

London Heathrow

Mon 15/9

21:10-11:45

1 stop14h 35m

£286

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 18/2

15:00-19:30

1 stop4h 30m

London Heathrow

Sun 22/2

06:50-17:35

1 stop10h 45m

£295

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Fri 20/2

15:00-20:55

1 stop5h 55m

London Heathrow

Mon 23/2

07:45-14:30

1 stop6h 45m

£295

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 17 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, January is the cheapest month in which you can book a flight from Plymouth to London Heathrow Airport (average of £112). Flying from Plymouth to London Heathrow Airport 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 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 26 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Plymouth to London Heathrow Airport as you normally would.

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 24 August 2025.

Travellers seeking maximum savings on their Plymouth to London Heathrow Airport flight should consider departing on Thursday at midday when fares are most often at their lowest. Saturday afternoons 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 26 August 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.

Food

7.3

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Food

7.3

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Food

7.3

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 6h 30m. Your travel time can differ by up to 9h 15m. 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.

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

    The cheapest flight price from Plymouth to London Heathrow Airport is £521. On average you can expect to pay £571. The most popular route, (Exeter - London Heathrow), can usually be booked for £208.

  • 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, January is the cheapest month in which you can book a flight from Plymouth to London Heathrow Airport (average of £112). Flying from Plymouth to London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Plymouth to Heathrow

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

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 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£214Average£339FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£267Average£368FlexibilityNo 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?

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

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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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