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Cheap flights from Seattle to Grimsby from £342

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Grimsby departing on 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

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SEA-HUY
4671 mimulti-stop
Multiple Airlines Logo
HUY-SEA
4671 mimulti-stop
Multiple Airlines
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momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Grimsby 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, momondo users made 279,928 searches. Data last updated 22 August 2025.
Use the filters below to find and compare flights from Seattle to Grimsby that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Wed 3/12

15:10-09:20

3 stops34h 10m

£342

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Wed 3/12

15:05-17:00

1 stop17h 55m

£362

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Wed 3/12

07:20-09:20

2 stops18h 00m

£380

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Seattle to Grimsby

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to Grimsby Humberside?

Virgin Atlantic and KLM are the most popular carriers operating from Seattle/Tacoma Intl to Grimsby Humberside

Which airlines fly to Grimsby?

British Airways, Icelandair and Aer Lingus are the top three most popular airlines that fly to Grimsby from Seattle according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when travelling to Grimsby. Keep in mind that there are 3 different airlines that fly to Grimsby on a routine basis, so you have a few additional options to choose from.

When to book flights from Seattle to Grimsby

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Grimsby according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to Grimsby (SEA to HUY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Grimsby

Direct flights

None
There are no direct flights from Seattle to Grimsby. There are no popular flight routes from Seattle to Grimsby.
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  • How far is Seattle/Tacoma Intl to Grimsby Humberside by plane?

    A flight from Seattle/Tacoma Intl to Grimsby Humberside will travel around 4669.6 mi.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Grimsby Humberside Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Grimsby Humberside Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Grimsby Humberside Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Grimsby Humberside Airport.

  • What documentation or ID do you need to fly to Grimsby Humberside Airport?

    The required travel and health documents for your Grimsby Humberside Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Grimsby Humberside Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Grimsby?

Book flights to Grimsby if you plan to visit one of these locations
Skegness
Hull
Bridlington
Driffield

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Grimsby?

Finding the right flight to Grimsby from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Grimsby quick and easy, saving you time and money.

Can I find flights from Seattle to Grimsby with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Grimsby flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Grimsby?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Grimsby.

I’m not ready to book a flight from Seattle to Grimsby right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Grimsby now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Grimsby and let you know when they change.

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