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Cheap flights from Plymouth to London Heathrow Airport from £124

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LHR
12 Jun — 19 Jun1
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 13 May 2026.

Mon 15/616:00
EXT
-
LHR
1 stop4h 20m
Multiple Airlines
Tue 23/620:50
LHR
-
EXT
2 stops24h 30m
Multiple Airlines
Deal found 12/5£217
Mon 15/617:15
EXT
-
LHR
1 stop14h 25m
KLM
Tue 23/611:45
LHR
-
EXT
1 stop5h 00m
KLM
Deal found 12/5£240
Wed 10/616:00
EXT
-
LHR
1 stop4h 20m
Multiple Airlines
Wed 17/615:30
LHR
-
EXT
2 stops23h 25m
Multiple Airlines
Deal found 10/5£246
Wed 10/617:15
EXT
-
LHR
1 stop15h 45m
KLM
Wed 17/609:55
LHR
-
EXT
1 stop6h 50m
KLM
Deal found 9/5£248
Wed 17/617:15
EXT
-
LHR
1 stop14h 25m
KLM
Wed 24/609:55
LHR
-
EXT
1 stop6h 50m
KLM
Deal found 11/5£249
Tue 9/616:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Tue 16/607:40
LHR
-
EXT
1 stop7h 50m
Aer Lingus
Deal found 12/5£250
Wed 24/616:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Thu 25/614:20
LHR
-
EXT
1 stop4h 25m
Aer Lingus
Deal found 11/5£255
Sat 6/617:30
EXT
-
LHR
1 stop14h 35m
Aer Lingus
Sat 13/607:40
LHR
-
EXT
1 stop9h 20m
Aer Lingus
Deal found 9/5£279
Wed 10/616:00
EXT
-
LHR
1 stop4h 20m
Aer Lingus
Thu 11/614:20
LHR
-
EXT
1 stop4h 25m
Aer Lingus
Deal found 8/5£280

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 13 May 2026.

Round-trip from

£217

One-way from

£124

Popular in

May

Cheapest in

March

Average price

£861
15/6-23/6
  • 15/6-23/6
  • 3 total stops
  • 28h 50m total
  • Plymouth to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 14/6
  • 1 total stop
  • 12h 50m total
  • Plymouth to London
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (£37 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 13 May 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

Mon 15/6

16:00-20:20

1 stop4h 20m

London Heathrow

Tue 23/6

20:50-21:20

2 stops24h 30m

£217

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 15/6

17:15-07:40

1 stop14h 25m

London Heathrow

Tue 23/6

11:45-16:45

1 stop5h 00m

£240

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 10/6

16:00-20:20

1 stop4h 20m

London Heathrow

Wed 17/6

15:30-14:55

2 stops23h 25m

£246

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 10/6

17:15-09:00

1 stop15h 45m

London Heathrow

Wed 17/6

09:55-16:45

1 stop6h 50m

£248

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 17/6

17:15-07:40

1 stop14h 25m

London Heathrow

Wed 24/6

08:40-16:45

1 stop8h 05m

£249

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sat 6/6

17:30-08:05

1 stop14h 35m

London Heathrow

Sat 13/6

07:40-17:00

1 stop9h 20m

£279
Fastest return journey

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Wed 10/6

16:00-20:20

1 stop4h 20m

London Heathrow

Thu 11/6

14:20-18:45

1 stop4h 25m

£280

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 25/5

16:00-10:20

1 stop18h 20m

London Heathrow

Fri 29/5

21:10-17:00

1 stop19h 50m

£318

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Mon 8/6

16:00-20:20

1 stop4h 20m

London Heathrow

Wed 10/6

08:50-15:30

1 stop6h 40m

£320
Cheapest one-way

ExeterLondon

EXT - LHR

EXTLHR

Exeter

Sun 14/6

19:15-08:05

1 stop12h 50m

£124

Flights are sorted by cheapest return flights first.

Deals found on 9/5

Showing 1-10 of 15 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 13 May 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.

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 13 May 2026.
See what other customers who have flown with KLM 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
1,517 reviews
Check prices

Overall

7.8

Food

7.3

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,517 reviews
KLM
7.8
Good
1,517 reviews
Check prices

Overall

7.8

Food

7.3

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 can get you from Plymouth to London Heathrow Airport in just under 14h 25m. Your travel time can differ by up to . The distance from Plymouth to London Heathrow Airport is about 138 mi.

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

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Alternative routes for Plymouth to Heathrow

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Top airline flying from Plymouth to Heathrow

Discover the top airline 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 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£216Average£318FlexibilityNo cancel feeOn-time75%
Search KLM 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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