Cheap flights from Grimsby to St. Louis from £3,123

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — STL
1 Jul — 8 Jul1
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 1 June 2026.

Mon 1/609:50
HUY
-
STL
2 stops20h 40m
KLM
Fri 17/718:58
STL
-
HUY
2 stops20h 32m
KLM
Deal found 29/5£3,123
Wed 3/606:10
HUY
-
STL
2 stops16h 36m
KLM
Thu 23/710:19
STL
-
HUY
2 stops17h 01m
KLM
Deal found 29/5£3,125

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.

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.

  • 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.

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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.

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