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Cheap flights from Grimsby to London Heathrow Airport from £259

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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — LHR
1 Jan — 8 Jan1
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 2 December 2025.

Tue 16/1217:10HUY - LHR
1 stop3h 40mKLM
Sat 20/1208:40LHR - HUY
1 stop8h 20mKLM
Deal found 1/12£379
Tue 16/1209:50HUY - LHR
2 stops12h 30mMultiple Airlines
Sat 20/1211:05LHR - HUY
3 stops22h 15mMultiple Airlines
Deal found 1/12£579
Tue 2/1209:50HUY - LHR
1 stop7h 10mKLM
Tue 9/1215:45LHR - HUY
1 stop5h 35mKLM
Deal found 1/12£605
Tue 2/1209:50HUY - LHR
3 stops12h 30mMultiple Airlines
Tue 9/1217:30LHR - HUY
3 stops15h 50mMultiple Airlines
Deal found 1/12£930

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 2 December 2025.

Round-trip from

£286

One-way from

£259
KLM
  • KLM
  • 13/1-17/1
  • 2 total stops
  • 31h 50m total
  • Grimsby to London
Search Deals
KLM
  • KLM
  • 29/12
  • 1 total stop
  • 13h 05m 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 2 December 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

Tue 13/1

09:50-17:00

1 stop7h 10m

London Heathrow

Sat 17/1

08:40-09:20

1 stop24h 40m

£286

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Tue 16/12

17:10-20:50

1 stop3h 40m

London Heathrow

Sat 20/12

08:40-17:00

1 stop8h 20m

£379

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Tue 16/12

09:50-22:20

2 stops12h 30m

London Heathrow

Sat 20/12

11:05-09:20

3 stops22h 15m

£579

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Tue 13/1

06:10-13:45

2 stops7h 35m

London Heathrow

Sat 17/1

11:30-09:20

2 stops21h 50m

£3,123

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Mon 29/12

06:10-19:15

1 stop13h 05m

£259

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Mon 29/12

06:10-22:00

3 stops15h 50m

£351

Flights are sorted by cheapest return flights first.

Deals found on 1/12

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 7h 10m. 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
Northampton
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Swindon
Romford
Bedford
Chichester

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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 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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