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Cheap flights from Seattle to Grimsby from £742

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Grimsby departing on 27/12. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Grimsby

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
14:35 - 16:40
SEA
-
HUY
18h 05m
1 stop
Delta Logo
05:50 - 11:50
HUY
-
SEA
14h 00m
1 stop
£742Delta
Sun, 27 Dec - Tue, 12 Jan
Delta Logo
23:59 - 16:40
SEA
-
HUY
32h 41m
2 stops
Delta Logo
09:50 - 11:50
HUY
-
SEA
34h 00m
1 stop
£746Delta
Sat, 26 Dec - Mon, 11 Jan
Delta Logo
23:59 - 09:20
SEA
-
HUY
25h 21m
2 stops
Delta Logo
09:50 - 20:27
HUY
-
SEA
18h 37m
2 stops
£754Delta
Sun, 27 Dec - Tue, 12 Jan
Delta Logo
14:35 - 16:40
SEA
-
HUY
18h 05m
1 stop
Delta Logo
05:50 - 22:12
HUY
-
SEA
24h 22m
2 stops
£762Delta
Sun, 27 Dec - Fri, 8 Jan
Delta Logo
23:59 - 09:20
SEA
-
HUY
25h 21m
2 stops
Delta Logo
05:50 - 22:05
HUY
-
SEA
24h 15m
2 stops
£766Delta
Sat, 26 Dec - Fri, 8 Jan
Delta Logo
14:35 - 16:40
SEA
-
HUY
18h 05m
1 stop
Delta Logo
09:50 - 11:50
HUY
-
SEA
34h 00m
1 stop
£780Delta
Sun, 27 Dec - Sun, 10 Jan
Delta Logo
23:59 - 16:40
SEA
-
HUY
32h 41m
2 stops
Delta Logo
09:50 - 11:50
HUY
-
SEA
34h 00m
1 stop
£783Delta
Sat, 26 Dec - Sun, 10 Jan
Delta Logo
14:35 - 16:40
SEA
-
HUY
18h 05m
1 stop
Delta Logo
05:50 - 11:50
HUY
-
SEA
14h 00m
1 stop
£787Delta
Fri, 25 Dec - Wed, 13 Jan
Delta Logo
06:05 - 09:20
SEA
-
HUY
43h 15m
2 stops
Delta Logo
05:50 - 11:50
HUY
-
SEA
14h 00m
1 stop
£791Delta
Thu, 24 Dec - Tue, 12 Jan
Delta Logo
06:05 - 16:40
SEA
-
HUY
26h 35m
2 stops
Delta Logo
05:50 - 16:35
HUY
-
SEA
18h 45m
2 stops
£798Delta
Thu, 24 Dec - Wed, 13 Jan

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Delta flights from Seattle to Grimsby

Our best Delta deals on Seattle to Grimsby flight tickets
Delta
27 Dec
SEA14:35Seattle/Tacoma Intl
18h 05m
1 stop
HUY16:40Grimsby Humberside
12 Jan
HUY05:50Grimsby Humberside
14h 00m
1 stop
SEA11:50Seattle/Tacoma Intl
£742
Delta
26 Dec
SEA23:59Seattle/Tacoma Intl
32h 41m
2 stops
HUY16:40Grimsby Humberside
11 Jan
HUY09:50Grimsby Humberside
34h 00m
1 stop
SEA11:50Seattle/Tacoma Intl
£746
Delta
27 Dec
SEA23:59Seattle/Tacoma Intl
25h 21m
2 stops
HUY09:20Grimsby Humberside
12 Jan
HUY09:50Grimsby Humberside
18h 37m
2 stops
SEA20:27Seattle/Tacoma Intl
£754

KLM flights from Seattle to Grimsby

Our best KLM deals on Seattle to Grimsby flight tickets
KLM
17 Aug
SEA17:45Seattle/Tacoma Intl
15h 20m
1 stop
HUY17:05Grimsby Humberside
15 Sept
HUY06:10Grimsby Humberside
18h 20m
2 stops
SEA16:30Seattle/Tacoma Intl
£846
KLM
17 Aug
SEA07:15Seattle/Tacoma Intl
18h 05m
2 stops
HUY09:20Grimsby Humberside
15 Sept
HUY06:10Grimsby Humberside
18h 20m
2 stops
SEA16:30Seattle/Tacoma Intl
£997

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 31 July 2026.
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

Cheapest return flight
Fastest return journey

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sun 27/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Tue 12/1

05:50-11:50

1 stop14h 00m

£742

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sat 26/12

23:59-16:40

2 stops32h 41m

Grimsby Humberside

Mon 11/1

09:50-11:50

1 stop34h 00m

£746

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sun 27/12

23:59-09:20

2 stops25h 21m

Grimsby Humberside

Tue 12/1

09:50-20:27

2 stops18h 37m

£754

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sun 27/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Fri 8/1

05:50-22:12

2 stops24h 22m

£762

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sat 26/12

23:59-09:20

2 stops25h 21m

Grimsby Humberside

Fri 8/1

05:50-22:05

2 stops24h 15m

£766

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sun 27/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Sun 10/1

09:50-11:50

1 stop34h 00m

£780

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sat 26/12

23:59-16:40

2 stops32h 41m

Grimsby Humberside

Sun 10/1

09:50-11:50

1 stop34h 00m

£783

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Fri 25/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Wed 13/1

05:50-11:50

1 stop14h 00m

£787

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Thu 24/12

06:05-09:20

2 stops43h 15m

Grimsby Humberside

Tue 12/1

05:50-11:50

1 stop14h 00m

£791

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Thu 24/12

06:05-16:40

2 stops26h 35m

Grimsby Humberside

Wed 13/1

05:50-16:35

2 stops18h 45m

£798

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

Fastest flight time

18h 05m

Direct flights

None
The fastest flight from Seattle to Grimsby takes 18h 05m
There are no direct flights from Seattle to Grimsby. There are no popular flight routes from Seattle to Grimsby.
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Frequently asked questions about flying from Seattle to Grimsby

  • 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. In terms of flight time, this usually takes a little over 18h 05m.

  • 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.

Frequently asked questions about flying from Seattle to Grimsby

  • How do I get Price Alerts for flights from Seattle to Grimsby?

    Confirm your travel details to search for the latest offers for flights from Seattle to Grimsby. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Grimsby with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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