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Cheap flights from Seattle to Grimsby from $992

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Grimsby departing on 4/24. 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 round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
1:45 pm - 9:30 pm
SEA
-
HUY
23h 45m
1 stop
KLM Logo
6:10 am - 11:40 am
HUY
-
SEA
13h 30m
1 stop
$992KLM
Fri, Apr 24 - Fri, May 1
Virgin Atlantic Logo
1:45 pm - 9:30 pm
SEA
-
HUY
23h 45m
1 stop
Virgin Atlantic Logo
6:10 am - 11:42 am
HUY
-
SEA
13h 32m
1 stop
$993Virgin Atlantic
Sun, Apr 26 - Sun, May 3
Delta Logo
7:15 am - 9:20 am
SEA
-
HUY
18h 05m
2 stops
Delta Logo
6:10 am - 11:40 am
HUY
-
SEA
13h 30m
1 stop
$997Delta
Fri, Apr 24 - Fri, May 1
Delta Logo
7:15 am - 9:20 am
SEA
-
HUY
18h 05m
2 stops
Delta Logo
9:50 am - 10:05 pm
HUY
-
SEA
20h 15m
2 stops
$1,007Delta
Fri, Apr 24 - Fri, May 1
KLM Logo
7:20 am - 9:20 am
SEA
-
HUY
18h 00m
2 stops
KLM Logo
9:50 am - 4:35 pm
HUY
-
SEA
14h 45m
1 stop
$1,047KLM
Mon, Aug 17 - Fri, Sep 4
Virgin Atlantic Logo
7:20 am - 9:20 am
SEA
-
HUY
18h 00m
2 stops
Virgin Atlantic Logo
9:50 am - 11:26 pm
HUY
-
SEA
21h 36m
2 stops
$1,094Virgin Atlantic
Mon, Aug 17 - Fri, Sep 4

KLM flights from Seattle to Grimsby

Our best KLM deals on Seattle to Grimsby flight tickets
KLM
Apr 24
SEA1:45 pmSeattle/Tacoma Intl
23h 45m
1 stop
HUY9:30 pmGrimsby Humberside
May 1
HUY6:10 amGrimsby Humberside
13h 30m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$992
KLM
Apr 26
SEA5:35 pmSeattle/Tacoma Intl
19h 55m
1 stop
HUY9:30 pmGrimsby Humberside
May 3
HUY5:35 pmGrimsby Humberside
26h 07m
1 stop
SEA11:42 amSeattle/Tacoma Intl
$993
KLM
Aug 17
SEA7:20 amSeattle/Tacoma Intl
18h 00m
2 stops
HUY9:20 amGrimsby Humberside
Sep 4
HUY9:50 amGrimsby Humberside
14h 45m
1 stop
SEA4:35 pmSeattle/Tacoma Intl
$1,047

Delta flights from Seattle to Grimsby

Our best Delta deals on Seattle to Grimsby flight tickets
Delta
Apr 24
SEA7:15 amSeattle/Tacoma Intl
18h 05m
2 stops
HUY9:20 amGrimsby Humberside
May 1
HUY6:10 amGrimsby Humberside
13h 30m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$997
Delta
Apr 24
SEA7:15 amSeattle/Tacoma Intl
18h 05m
2 stops
HUY9:20 amGrimsby Humberside
May 1
HUY9:50 amGrimsby Humberside
20h 15m
2 stops
SEA10:05 pmSeattle/Tacoma Intl
$1,007

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated March 14, 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 round-trip

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Fri 4/24

1:45 pm-9:30 pm

1 stop23h 45m

Grimsby Humberside

Fri 5/1

6:10 am-11:40 am

1 stop13h 30m

$992

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sun 4/26

1:45 pm-9:30 pm

1 stop23h 45m

Grimsby Humberside

Sun 5/3

6:10 am-11:42 am

1 stop13h 32m

$993
Quickest round-trip

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Fri 4/24

7:15 am-9:20 am

2 stops18h 05m

Grimsby Humberside

Fri 5/1

6:10 am-11:40 am

1 stop13h 30m

$997

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Fri 4/24

7:15 am-9:20 am

2 stops18h 05m

Grimsby Humberside

Fri 5/1

9:50 am-10:05 pm

2 stops20h 15m

$1,007

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Mon 8/17

7:20 am-9:20 am

2 stops18h 00m

Grimsby Humberside

Fri 9/4

9:50 am-4:35 pm

1 stop14h 45m

$1,047

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Mon 8/17

7:20 am-9:20 am

2 stops18h 00m

Grimsby Humberside

Fri 9/4

9:50 am-11:26 pm

2 stops21h 36m

$1,094

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Grimsby from

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 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 38% of people opting to fly with this airline when traveling to Grimsby. Keep in mind that there are 6 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 round-trip 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

19h 15m

Direct flights

None
The fastest flight from Seattle to Grimsby takes 19h 15m
There are no direct flights from Seattle to Grimsby. There are no popular flight routes from Seattle to Grimsby.
Search flight deals

  • How far is Seattle/Tacoma Intl to Grimsby Humberside by plane?

    The distance between Seattle/Tacoma Intl and Grimsby Humberside is about 4669.6 mi. Flights usually cover this in 19h 15m, depending on flying conditions and air traffic around both airports.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Grimsby Humberside Airport.

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

    The travel and health documents required for your trip to Grimsby Humberside Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Grimsby Humberside Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Grimsby?

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

Why use momondo?

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

It is quick and easy to find Seattle to Grimsby flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Grimsby that suits you.

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

Yes. momondo enables you to select and highlight flights to Grimsby from Seattle with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Grimsby from Seattle.

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

Yes. momondo can track prices for Seattle to Grimsby flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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