Find flights
When to book
FAQs

Cheap flights from Grimsby to St. Louis from £911

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — STL
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap 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 18 September 2025.

Round-trip from

£911
Delta
  • Delta
  • 5/3-9/3
  • 4 total stops
  • 39h 04m total
  • Grimsby to St. Louis
Search Deals

Find flight deals from Grimsby to St. Louis

Best flights from Grimsby to St. Louis
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 18 September 2025.

Thu 5/306:00HUY - STL
2 stops20h 39mDelta
Mon 9/317:45STL - HUY
2 stops18h 25mDelta
Deal found 15/9£911

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 18 September 2025.
Use the filters below to find and compare flights from Grimsby to St. Louis that are best for you.

Fly from

Grimsby

Fly to

St. Louis

Route

Depart

Return

Price

GrimsbySt. Louis

HUY - STL

HUYSTL

Grimsby Humberside

Thu 5/3

06:00-20:39

2 stops20h 39m

Lambert-St Louis

Mon 9/3

17:45-17:10

2 stops18h 25m

£911

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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, February is the cheapest month in which you can book a flight from Grimsby to St. Louis (average of £722). Flying from Grimsby to St. Louis in December is currently the most expensive (average of £1,033). 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 20h 39m. 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.

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

    Currently, February is the cheapest month in which you can book a flight from Grimsby to St. Louis (average of £722). Flying from Grimsby to St. Louis in December is currently the most expensive (average of £1,033). 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

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.
Heathrow to Kansas City flights
Gatwick to Kansas City flights
Heathrow to St. Louis flights
London City to Kansas City flights
Gatwick to St. Louis flights
London City to St. Louis flights
Heathrow to Springfield flights
Birmingham to St. Louis flights
Manchester to St. Louis flights
Edinburgh to Kansas City flights
Manchester to Kansas City flights
Luton to St. Louis flights
Stansted to St. Louis flights
Edinburgh to St. Louis flights
Birmingham to Kansas City flights
Newcastle upon Tyne to St. Louis flights
London City to Springfield flights
Manchester to Springfield flights
Newcastle upon Tyne to Kansas City flights
Gatwick to Springfield flights
Leeds to St. Louis flights
Manchester to Columbia flights
Stansted to Kansas City flights
Leeds to Kansas City flights
Liverpool to St. Louis 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 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.