Find flights
When to book
FAQs

Cheap flights from Grimsby to London Heathrow Airport from £265

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — LHR
18 Aug — 25 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 19 July 2026.

Tue 11/806:10
HUY
-
LHR
1 stop4h 35m
KLM
Tue 18/820:55
LHR
-
HUY
1 stop12h 25m
KLM
Deal found 14/7£265
Thu 6/809:50
HUY
-
LHR
1 stop9h 35m
KLM
Thu 13/808:40
LHR
-
HUY
1 stop8h 25m
KLM
Deal found 14/7£312
Sat 1/806:10
HUY
-
LHR
1 stop25h 30m
KLM
Wed 5/806:30
LHR
-
HUY
1 stop10h 35m
KLM
Deal found 18/7£314
Sat 15/809:50
HUY
-
LHR
1 stop6h 25m
KLM
Mon 17/808:40
LHR
-
HUY
1 stop8h 25m
KLM
Deal found 17/7£356
Thu 6/809:50
HUY
-
LHR
2 stops8h 55m
Multiple Airlines
Thu 13/807:40
LHR
-
HUY
2 stops9h 25m
Multiple Airlines
Deal found 14/7£542
Tue 11/809:50
HUY
-
LHR
2 stops10h 15m
Multiple Airlines
Tue 18/808:45
LHR
-
HUY
2 stops12h 45m
Multiple Airlines
Deal found 14/7£564
Sat 1/809:50
HUY
-
LHR
1 stop6h 25m
Multiple Airlines
Wed 5/814:20
LHR
-
HUY
2 stops7h 10m
Multiple Airlines
Deal found 17/7£678

Find 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 19 July 2026.

Round-trip from

£265

One-way from

£230
KLM
  • KLM
  • 11/8-18/8
  • 2 total stops
  • 17h 00m total
  • Grimsby to London
Search Deals
KLM
  • KLM
  • 4/10
  • 1 total stop
  • 3h 20m 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 19 July 2026.
Use the filters below to find and compare flights from Grimsby to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Thu 6/8

09:50-19:25

1 stop9h 35m

London Heathrow

Thu 13/8

08:40-17:05

1 stop8h 25m

£312

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Sat 1/8

06:10-07:40

1 stop25h 30m

London Heathrow

Wed 5/8

06:30-17:05

1 stop10h 35m

£314

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Sat 15/8

09:50-16:15

1 stop6h 25m

London Heathrow

Mon 17/8

08:40-17:05

1 stop8h 25m

£356

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Thu 6/8

09:50-18:45

2 stops8h 55m

London Heathrow

Thu 13/8

07:40-17:05

2 stops9h 25m

£542

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Tue 11/8

09:50-20:05

2 stops10h 15m

London Heathrow

Tue 18/8

08:45-21:30

2 stops12h 45m

£564
Fastest return journey

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Sat 1/8

09:50-16:15

1 stop6h 25m

London Heathrow

Wed 5/8

14:20-21:30

2 stops7h 10m

£678

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Sorted by cheapest first

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.

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 4h 35m. 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.

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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Grimsby to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Edinburgh to Gatwick flights
Edinburgh to Luton flights
Edinburgh to Stansted flights
Edinburgh to Heathrow flights
Edinburgh to London City flights
Manchester to Gatwick flights
Manchester to London City flights
Manchester to Heathrow flights
Manchester to Stansted flights
Manchester to Luton flights
Newcastle upon Tyne to Heathrow flights
Heathrow to Gatwick flights
Newcastle upon Tyne to Luton flights
Birmingham to Heathrow flights
Newcastle upon Tyne to Stansted flights
Newcastle upon Tyne to London City flights
Birmingham to Gatwick flights
Newcastle upon Tyne to Gatwick flights
Newquay to Heathrow flights
Gatwick to Heathrow flights
Birmingham to Luton flights
Bristol to Gatwick flights
Manchester to Southend flights
Birmingham to Stansted flights
Birmingham to London City flights
Bristol to London City flights
Newquay to Gatwick flights
Newquay to Luton flights
Newcastle upon Tyne to Southend flights
Newquay to Stansted flights
Newquay to London City flights
Leeds to London City flights
Edinburgh to Southend flights
Leeds to Gatwick flights
Liverpool to London City flights
Southampton to Gatwick flights
Liverpool to Stansted flights
Leeds to Heathrow flights
Exeter to London City flights
Leeds to Stansted flights
Exeter to Gatwick flights
Liverpool to Heathrow flights
Leeds to Luton flights
Exeter to Heathrow flights
Liverpool to Gatwick flights
Liverpool to Luton flights
Exeter to Stansted flights
Southampton to Heathrow flights
Southampton to London City flights
Norwich to Heathrow 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 Grimsby to Heathrow?

Cheapflights makes it easy to find Grimsby 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 Grimsby to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Grimsby to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Grimsby to Heathrow with no change fees.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.