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Cheap flights from Plymouth to London Heathrow Airport from £121

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LHR
23 May — 30 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 23 April 2026.

Wed 20/521:45
EXT
-
LHR
2 stops17h 00m
Multiple Airlines
Wed 27/507:40
LHR
-
EXT
1 stop7h 50m
Multiple Airlines
Deal found 22/4£244
Wed 6/521:45
EXT
-
LHR
2 stops17h 00m
Multiple Airlines
Sun 10/514:20
LHR
-
EXT
1 stop4h 25m
Multiple Airlines
Deal found 21/4£257
Wed 20/516:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Wed 27/507:40
LHR
-
EXT
1 stop7h 50m
Aer Lingus
Deal found 22/4£258
Thu 11/619:15
EXT
-
LHR
1 stop12h 50m
Aer Lingus
Thu 18/608:50
LHR
-
EXT
1 stop9h 55m
Aer Lingus
Deal found 18/4£273
Mon 1/616:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Sun 7/608:50
LHR
-
EXT
1 stop9h 55m
Aer Lingus
Deal found 18/4£292
Wed 13/516:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Sun 17/508:50
LHR
-
EXT
1 stop9h 55m
Aer Lingus
Deal found 20/4£292
Mon 1/615:25
EXT
-
LHR
1 stop5h 50m
British Airways
Wed 10/621:35
LHR
-
EXT
1 stop17h 20m
British Airways
Deal found 18/4£295
Mon 11/517:15
EXT
-
LHR
1 stop3h 40m
KLM
Mon 18/520:55
LHR
-
EXT
1 stop19h 50m
KLM
Deal found 19/4£298
Wed 6/516:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Sun 10/514:20
LHR
-
EXT
1 stop4h 25m
Aer Lingus
Deal found 21/4£300
Tue 19/516:00
EXT
-
LHR
1 stop4h 20m
Multiple Airlines
Tue 26/521:10
LHR
-
EXT
2 stops19h 35m
Multiple Airlines
Deal found 19/4£302
Mon 1/615:25
EXT
-
LHR
1 stop5h 50m
British Airways
Mon 8/621:40
LHR
-
EXT
1 stop17h 15m
British Airways
Deal found 18/4£303

Find flight deals from Plymouth to Heathrow

Keep the following information in mind while searching for Plymouth to Heathrow flight deals. Data was last updated 23 April 2026.

Round-trip from

£244

One-way from

£121

Popular in

May

Cheapest in

March

Average price

£397
Aer Lingus
  • Aer Lingus
  • 20/5-27/5
  • 3 total stops
  • 24h 50m total
  • Plymouth to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 10/5
  • 1 total stop
  • 13h 50m total
  • Plymouth to London
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (£122 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease (£37 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 23 April 2026.
Use the filters below to find and compare flights from Plymouth to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 6/5

21:45-14:45

2 stops17h 00m

London Heathrow

Sun 10/5

14:20-18:45

1 stop4h 25m

£257
Fastest return journey

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 20/5

16:00-20:20

1 stop4h 20m

London Heathrow

Wed 27/5

07:40-15:30

1 stop7h 50m

£260

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 13/5

16:00-20:20

1 stop4h 20m

London Heathrow

Sun 17/5

08:50-18:45

1 stop9h 55m

£292

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 1/6

15:25-21:15

1 stop5h 50m

London Heathrow

Tue 9/6

21:35-14:55

1 stop17h 20m

£295

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 1/6

15:25-21:15

1 stop5h 50m

London Heathrow

Wed 10/6

21:35-14:55

1 stop17h 20m

£295

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 1/6

15:25-21:15

1 stop5h 50m

London Heathrow

Mon 8/6

21:40-14:55

1 stop17h 15m

£303

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 19/5

16:00-20:20

1 stop4h 20m

London Heathrow

Tue 26/5

07:40-15:30

1 stop7h 50m

£306

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Fri 5/6

17:55-21:25

1 stop3h 30m

London Heathrow

Fri 12/6

22:15-09:05

1 stop10h 50m

£306

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Tue 9/6

15:25-21:05

1 stop5h 40m

London Heathrow

Wed 10/6

21:35-14:55

1 stop17h 20m

£309
Cheapest one-way

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sun 10/5

19:15-09:05

1 stop13h 50m

£121

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 19 resultsSorted by cheapest first
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 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 23 April 2026.

It’s typically best to fly out from Plymouth to London Heathrow Airport at midday. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 23 April 2026.
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
7.8
Good
1,508 reviews
Check prices

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,508 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,907 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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?

    Aer Lingus and British Airways can get you from Plymouth to London Heathrow Airport in just under 4h 20m. Your travel time can differ by up to 1h 30m. 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.

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
Wembley
Croydon
Hounslow
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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 23 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£216Average£319FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£288Average£485FlexibilityNo 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 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.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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