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Cheap flights from Grimsby to London Heathrow Airport from £235

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — LHR
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Grimsby to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Grimsby to Heathrow
Explore the most affordable flight options available from Grimsby to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 November 2025.

Thu 25/1210:10HUY - LHR
1 stop9h 05mKLM
Thu 1/111:45LHR - HUY
1 stop9h 35mKLM
Deal found 10/11£286
Sat 22/1106:10HUY - LHR
1 stop5h 55mKLM
Sun 23/1106:30LHR - HUY
1 stop10h 10mKLM
Deal found 9/11£331
Fri 21/1117:10HUY - LHR
1 stop3h 40mKLM
Mon 8/1215:45LHR - HUY
1 stop5h 35mKLM
Deal found 9/11£349
Fri 12/1206:10HUY - LHR
1 stop4h 35mKLM
Fri 12/1217:50LHR - HUY
1 stop3h 30mKLM
Deal found 8/11£559
Fri 21/1106:10HUY - LHR
3 stops30h 30mMultiple Airlines
Mon 8/1208:15LHR - HUY
3 stops32h 25mMultiple Airlines
Deal found 9/11£785
Sat 22/1106:10HUY - LHR
2 stops7h 35mMultiple Airlines
Sun 23/1117:50LHR - HUY
1 stop3h 30mMultiple Airlines
Deal found 10/11£3,015
Thu 25/1210:10HUY - LHR
1 stop3h 40mMultiple Airlines
Thu 1/106:20LHR - HUY
2 stops10h 40mMultiple Airlines
Deal found 10/11£3,045
Thu 25/1206:10HUY - LHR
2 stops7h 35mAir France
Thu 1/109:00LHR - HUY
2 stops8h 00mAir France
Deal found 10/11£3,133

Cheap flight deals from Grimsby to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Grimsby (HUY) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 November 2025.

Round-trip from

£286

One-way from

£235
KLM
  • KLM
  • 25/12-1/1
  • 2 total stops
  • 18h 40m total
  • Grimsby to London
Search Deals
KLM
  • KLM
  • 25/12
  • 1 total stop
  • 14h 40m total
  • Grimsby to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Grimsby 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 11 November 2025.
Use the filters below to find and compare flights from Grimsby to London Heathrow Airport that are best for you.

Fly from

Grimsby

Fly to

Heathrow

Route

Depart

Return

Price

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Thu 25/12

10:10-19:15

1 stop9h 05m

London Heathrow

Thu 1/1

11:45-21:20

1 stop9h 35m

£286

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Fri 20/3

09:50-19:15

1 stop9h 25m

London Heathrow

Mon 23/3

17:50-21:20

1 stop3h 30m

£287

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Sat 22/11

06:10-12:05

1 stop5h 55m

London Heathrow

Sun 23/11

06:30-16:40

1 stop10h 10m

£331

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Fri 21/11

17:10-20:50

1 stop3h 40m

London Heathrow

Mon 8/12

15:45-21:20

1 stop5h 35m

£349

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Fri 12/12

06:10-10:45

1 stop4h 35m

London Heathrow

Fri 12/12

17:50-21:20

1 stop3h 30m

£559

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Fri 21/11

06:10-12:40

3 stops30h 30m

London Heathrow

Mon 8/12

08:15-16:40

3 stops32h 25m

£785

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Sat 22/11

06:10-13:45

2 stops7h 35m

London Heathrow

Sun 23/11

17:50-21:20

1 stop3h 30m

£3,015

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Thu 25/12

06:10-20:50

1 stop14h 40m

£235

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Thu 25/12

06:10-21:25

2 stops15h 15m

£248

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Best time to book a flight from Grimsby to Heathrow

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

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

Currently, January is the cheapest month in which you can book a flight from Grimsby to London Heathrow Airport (average of £74). Flying from Grimsby to London Heathrow Airport in September is currently the most expensive (average of £82). 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.

Related info for your journey

Find useful and relevant information for your journey from Grimsby to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Grimsby to London Heathrow?

    Grimsby Humberside (HUY) is the airport you will fly out of if you book a flight from Grimsby to London Heathrow. You should not have trouble finding flights to London Heathrow from Humberside; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Grimsby airport to London Heathrow. It is only a 11.0 mi journey to Humberside (HUY) from Grimsby’s city center.

  • How long is the flight from Grimsby to London Heathrow Airport?

    KLM can get you from Grimsby to London Heathrow Airport in just under 9h 05m. Your travel time can differ by up to . The distance from Grimsby to London Heathrow Airport is about 145 mi.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Grimsby to London Heathrow Airport (average of £74). Flying from Grimsby to London Heathrow Airport in September is currently the most expensive (average of £82). 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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Fly with Cheapflights

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

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

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

Not ready to book yet? You can track prices for flights from Grimsby to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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