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Cheap flights from Grimsby to St. Louis from £1,946

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — STL
3 May — 10 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Grimsby to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Grimsby to St. Louis
Explore the most affordable flight options available from Grimsby to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 April 2026.

Wed 3/606:10
HUY
-
STL
2 stops17h 06m
KLM
Thu 23/718:58
STL
-
HUY
2 stops16h 07m
KLM
Deal found 29/3£1,946
Mon 1/606:10
HUY
-
STL
2 stops16h 36m
Air France
Fri 17/710:19
STL
-
HUY
2 stops17h 01m
Air France
Deal found 29/3£2,434

Find flight deals from Grimsby to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Grimsby (HUY) to St. Louis (STL). 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 3 April 2026.

Round-trip from

£1,946
KLM
  • KLM
  • 3/6-23/7
  • 4 total stops
  • 33h 13m total
  • Grimsby to St. Louis
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Grimsby to St. Louis 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 3 April 2026.
Use the filters below to find and compare flights from Grimsby to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

GrimsbySt. Louis

HUY - STL

HUYSTL

Grimsby Humberside

Wed 3/6

06:10-17:16

2 stops17h 06m

Lambert-St Louis

Thu 23/7

18:58-17:05

2 stops16h 07m

£1,946

GrimsbySt. Louis

HUY - STL

HUYSTL

Grimsby Humberside

Mon 1/6

06:10-16:46

2 stops16h 36m

Lambert-St Louis

Fri 17/7

10:19-09:20

2 stops17h 01m

£2,434

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Sorted by cheapest first

Best time to book a flight from Grimsby to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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 St. Louis

What is the cheapest month to book a flight from Grimsby to St. Louis?

Currently, March is the cheapest month in which you can book a flight from Grimsby to St. Louis (average of £524). Flying from Grimsby to St. Louis in August is currently the most expensive (average of £822). 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 St. Louis. 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 Grimsby to St. Louis?

    Departing from Grimsby to St. Louis will take you 16h 36m. Airlines will cover a distance of 4127 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Grimsby to St. Louis that include hotel bookings?

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

  • How can I find direct flights from Grimsby to St. Louis?

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

  • Can I find deals for business class flights from Grimsby to St. Louis?

    Yes. Cheapflights offers flight deals from Grimsby to St. Louis 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 St. Louis?

    Currently, March is the cheapest month in which you can book a flight from Grimsby to St. Louis (average of £524). Flying from Grimsby to St. Louis in August is currently the most expensive (average of £822). 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.

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Why should you use Cheapflights to find cheap flight tickets from Grimsby to St. Louis?

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Can Cheapflights find flights from Grimsby to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Grimsby? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Grimsby to St. Louis 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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