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Cheap flights from Grimsby to London Heathrow Airport from £273

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — LHR
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£273
KLM
  • KLM
  • 20/8-27/8
  • 2 total stops
  • 16h 00m total
  • Grimsby to London
Search Deals

Find flight deals from Grimsby to Heathrow

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 4 July 2025.

Wed 20/806:10HUY - LHR
1 stop7h 40mKLM
Wed 27/808:40LHR - HUY
1 stop8h 20mKLM
Deal found 3/7£273
Sat 26/707:30HUY - LHR
1 stop4h 15mMultiple Airlines
Sun 27/711:05LHR - HUY
2 stops5h 55mMultiple Airlines
Deal found 2/7£569

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 4 July 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

Wed 20/8

06:10-13:50

1 stop7h 40m

London Heathrow

Wed 27/8

08:40-17:00

1 stop8h 20m

£273

GrimsbyLondon

HUY - LHR

HUYLHR

Grimsby Humberside

Sat 26/7

07:30-11:45

1 stop4h 15m

London Heathrow

Sun 27/7

11:05-17:00

2 stops5h 55m

£569

Flights are sorted by cheapest return flights first.

Deals found on 3/7

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 £112). Flying from Grimsby to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

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 4 July 2025.
Check out reviews from past customers who have flown with KLM from Grimsby to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,363 reviews
Check prices

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,363 reviews
KLM
7.8
Good
1,363 reviews
Check prices

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 1 airline has flights from the Grimsby airport to London Heathrow. It is only a 11.0 mi journey to Humberside (HUY) from Grimsby’s city center.

  • What is the cheapest airline to fly from Grimsby to London Heathrow Airport round-trip?

    KLM, at £273, was found to be the cheapest airline from Grimsby to London Heathrow Airport..

  • 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 £112). Flying from Grimsby to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Grimsby?

Book flights to Grimsby if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Swindon
Maidstone

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Top airline flying from Grimsby to Heathrow

Discover the top airline that operate flights from Grimsby 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£257Average£412FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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?

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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.

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