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Cheap flights from Washington to Grimsby from £499

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HUY
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Grimsby

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Grimsby
Explore the most affordable flight options available from Washington to Grimsby. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2026.

Sun 27/1214:35
SEA
-
HUY
1 stop18h 05m
Delta
Tue 12/105:50
HUY
-
SEA
1 stop14h 00m
Delta
Deal found 30/7£738
Sat 26/1223:59
SEA
-
HUY
2 stops32h 41m
Delta
Mon 11/109:50
HUY
-
SEA
1 stop34h 00m
Delta
Deal found 30/7£741
Sun 27/1223:59
SEA
-
HUY
2 stops25h 21m
Delta
Wed 13/109:50
HUY
-
SEA
2 stops20h 22m
Delta
Deal found 30/7£749
Sun 27/1214:35
SEA
-
HUY
1 stop18h 05m
Delta
Fri 8/105:50
HUY
-
SEA
2 stops24h 22m
Delta
Deal found 30/7£758
Sat 26/1223:59
SEA
-
HUY
2 stops25h 21m
Delta
Fri 8/105:50
HUY
-
SEA
2 stops24h 15m
Delta
Deal found 30/7£761
Sun 27/1214:35
SEA
-
HUY
1 stop18h 05m
Delta
Sun 10/109:50
HUY
-
SEA
1 stop34h 00m
Delta
Deal found 30/7£775
Sat 26/1223:59
SEA
-
HUY
2 stops32h 41m
Delta
Sun 10/109:50
HUY
-
SEA
1 stop34h 00m
Delta
Deal found 30/7£778
Fri 25/1214:35
SEA
-
HUY
1 stop18h 05m
Delta
Tue 12/109:50
HUY
-
SEA
1 stop34h 00m
Delta
Deal found 30/7£782
Thu 24/1206:05
SEA
-
HUY
2 stops43h 15m
Delta
Tue 12/105:50
HUY
-
SEA
1 stop14h 00m
Delta
Deal found 30/7£786
Thu 24/1206:05
SEA
-
HUY
2 stops26h 35m
Delta
Wed 13/105:50
HUY
-
SEA
2 stops18h 45m
Delta
Deal found 30/7£793
Wed 23/1221:55
SEA
-
HUY
2 stops34h 45m
Delta
Tue 12/109:50
HUY
-
SEA
1 stop34h 00m
Delta
Deal found 30/7£796

Find flight deals from Washington to Grimsby

Keep the following information in mind while searching for Washington to Grimsby flight deals. Data was last updated 2 August 2026.

Round-trip from

£738

One-way from

£499
Delta
  • Delta
  • 27/12-11/1
  • 2 total stops
  • 52h 05m total
  • Washington to Grimsby
Search Deals
KLM
  • KLM
  • 20/8
  • 1 total stop
  • 15h 20m total
  • Washington to Grimsby
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington 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, Cheapflights users made 858,174 searches. Data last updated 2 August 2026.
Use the filters below to find and compare flights from Washington to Grimsby that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sun 27/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Mon 11/1

09:50-11:50

1 stop34h 00m

£738

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Sat 26/12

23:59-09:20

2 stops25h 21m

Grimsby Humberside

Sun 10/1

09:50-16:35

2 stops38h 45m

£786

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Fri 25/12

06:05-16:40

2 stops26h 35m

Grimsby Humberside

Tue 12/1

05:50-11:50

1 stop14h 00m

£786

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Tue 22/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Fri 8/1

09:50-11:50

1 stop34h 00m

£1,211
Fastest return journey

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Tue 22/12

14:35-16:40

1 stop18h 05m

Grimsby Humberside

Thu 7/1

05:50-11:50

1 stop14h 00m

£1,248

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Mon 21/12

14:35-09:20

1 stop34h 45m

Grimsby Humberside

Sat 9/1

05:50-11:50

1 stop14h 00m

£1,326
Cheapest one-way
Fastest single journey

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Thu 20/8

17:45-17:05

1 stop15h 20m

£499

SeattleGrimsby

SEA - HUY

SEAHUY

Seattle/Tacoma Intl

Thu 20/8

07:15-09:20

2 stops18h 05m

£503

Flights are sorted by cheapest return flights first.

Deals found on 1/8

Sorted by cheapest first

Best time to book a flight from Washington to Grimsby

Have a flexible travel schedule? Discover the best time to fly to Grimsby from Washington 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 Washington to Grimsby

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington to Grimsby. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Grimsby from Washington?

    Located just 11.0 mi from the city center, Grimsby Humberside (HUY) is the airport most travelers will use when flying to Grimsby from Washington.

  • How long is the flight from State of Washington to Grimsby?

    A quick flight from State of Washington to Grimsby can take about 18h 05m. Delta provides one of the quickest options available for as low as £738. There are 4671 mi between State of Washington and Grimsby.

  • Can I find deals for flights from Washington to Grimsby that include hotel bookings?

    Yes. In addition to deals on Washington to Grimsby flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Grimsby?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Grimsby.

  • Can I find deals for business class flights from Washington to Grimsby?

    Yes. Cheapflights offers flight deals from Washington to Grimsby by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Grimsby?

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

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Alternative routes for Washington to Grimsby

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Washington to Grimsby?

When you search for this flight from Washington to Grimsby, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Washington to Grimsby?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Grimsby from Washington.

Can Cheapflights find flights from Washington to Grimsby with no change fees?

Need flexible booking options for your flight to Grimsby from Washington? 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 Washington to Grimsby become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Grimsby from Washington today and book when prices fit your budget.

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