How long is the flight from Grimsby to St. Louis?

Departing from Grimsby to St. Louis will take you 29h 14m. Airlines will cover a distance of 4127 mi.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What is the cheapest time of day to fly from HUY to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Grimsby to St. Louis as you normally would.

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.

£1,203+ Cheap Flights from Grimsby to St. Louis

Cheap flight deals from Grimsby to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

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 31 October 2026.

Sun 13/1217:10 -

2 stops29h 14m

Sun 20/1219:15 -

2 stops44h 05m

Deal found 29/10£1,203

Sun 13/1206:10 -

3 stops34h 47m

Sun 20/1205:05 -

3 stops29h 20m

Deal found 29/10£2,537

Find flight deals from Grimsby to St. Louis

Round-trip from	£1,203

KLM
13/12-20/12
4 total stops
73h 19m total
Grimsby to St. Louis

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GrimsbySt. Louis

HUY Grimsby Humberside - STL Lambert-St Louis

HUYSTL

Grimsby Humberside

Sun 13/12

17:10-16:24

2 stops29h 14m

Lambert-St Louis

Sun 20/12

19:15-21:20

2 stops44h 05m

£1,203

Fastest return journey

GrimsbySt. Louis

HUY Grimsby Humberside - STL Lambert-St Louis

HUYSTL

Grimsby Humberside

Sun 13/12

06:10-10:57

3 stops34h 47m

Lambert-St Louis

Sun 20/12

05:05-16:25

3 stops29h 20m

£2,537

Flights are sorted by cheapest return flights first.

Deals found on 29/10

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.

HUY-STL

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

How long is the flight from Grimsby to St. Louis?
Departing from Grimsby to St. Louis will take you 29h 14m. Airlines will cover a distance of 4127 mi.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

St. Louis flight routes

Alternative routes for Grimsby to St. Louis

Fly with Cheapflights

How does Cheapflights help users find flights from Grimsby to St. Louis?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to St. Louis from Grimsby today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Grimsby to St. Louis 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 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!

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.

Cheap flights from Grimsby to St. Louis from £1,203

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Grimsby to St. Louis

Cheapest flights from Grimsby to St. LouisExplore 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 31 October 2026.

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 31 October 2026.

Best flights from Grimsby to St. LouisDiscover carefully curated flight deals from Grimsby to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Discover carefully curated flight deals from Grimsby to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Find flight deals from Grimsby to St. Louis

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Grimsby to St. Louis that are best for you.

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.

Related info for your journey

How long is the flight from Grimsby to St. Louis?

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

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

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

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 St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to St. Louis by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Grimsby to St. Louis by cabin class

Find flights from Grimsby to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Grimsby and St. Louis flights

Browse other Grimsby and St. Louis flight options. Last updated on 31 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to St. Louis

Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 31 October 2026.