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Cheap flights from Grimsby to San Francisco from £621

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
HUY — SFO
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Grimsby to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Grimsby to San Francisco
Explore the most affordable flight options available from Grimsby to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 January 2026.

Thu 12/306:10
HUY
-
SFO
1 stop13h 40m
Delta
Thu 19/311:50
SFO
-
HUY
2 stops21h 50m
Delta
Deal found 25/1£621
Fri 13/306:10
HUY
-
SFO
2 stops20h 50m
Virgin Atlantic
Fri 20/307:00
SFO
-
HUY
2 stops19h 20m
Virgin Atlantic
Deal found 27/1£630
Fri 13/306:10
HUY
-
SFO
1 stop13h 40m
Multiple Airlines
Fri 20/314:55
SFO
-
HUY
1 stop23h 25m
Multiple Airlines
Deal found 27/1£644
Thu 12/306:10
HUY
-
SFO
1 stop13h 40m
Virgin Atlantic
Thu 19/314:55
SFO
-
HUY
1 stop23h 25m
Virgin Atlantic
Deal found 25/1£711

Find flight deals from Grimsby to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Grimsby (HUY) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 January 2026.

Round-trip from

£621
Delta
  • Delta
  • 12/3-19/3
  • 3 total stops
  • 35h 30m total
  • Grimsby to San Francisco
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Grimsby to San Francisco 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 28 January 2026.
Use the filters below to find and compare flights from Grimsby to San Francisco that are best for you.

Fly from

Grimsby

Fly to

San Francisco

Route

Depart

Return

Price

GrimsbySan Francisco

HUY - SFO

HUYSFO

Grimsby Humberside

Thu 12/3

06:10-18:19

2 stops19h 09m

San Francisco

Thu 19/3

07:00-09:20

2 stops19h 20m

£625

GrimsbySan Francisco

HUY - SFO

HUYSFO

Grimsby Humberside

Fri 13/3

06:10-20:00

2 stops20h 50m

San Francisco

Fri 20/3

07:00-09:20

2 stops19h 20m

£630

GrimsbySan Francisco

HUY - SFO

HUYSFO

Grimsby Humberside

Fri 13/3

06:10-12:50

1 stop13h 40m

San Francisco

Fri 20/3

14:55-21:20

1 stop23h 25m

£644

GrimsbySan Francisco

HUY - SFO

HUYSFO

Grimsby Humberside

Thu 12/3

06:10-12:50

1 stop13h 40m

San Francisco

Thu 19/3

14:55-21:20

1 stop23h 25m

£711

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Best time to book a flight from Grimsby to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco 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.

Cheapflights Insights

Everything you need to know about your flight from Grimsby to San Francisco

What is the cheapest month to book a flight from Grimsby to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Grimsby to San Francisco (average of £405). Flying from Grimsby to San Francisco in July is currently the most expensive (average of £505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 28 January 2026.
Read reviews from past customers who have flown with KLM from Grimsby to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,443 reviews
Check prices

Boarding

7.8

Comfort

7.6

Overall

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Boarding

7.8

Comfort

7.6

Overall

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

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

  • How long is the flight from Grimsby to San Francisco?

    A quick flight from Grimsby to San Francisco can take about 19h 09m. Delta provides one of the quickest options available for as low as £625. Grimsby and San Francisco are separated by a distance of 5248 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

  • How can I find direct flights from Grimsby to San Francisco?

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

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

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

  • What is the cheapest month to book a flight from Grimsby to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Grimsby to San Francisco (average of £405). Flying from Grimsby to San Francisco in July is currently the most expensive (average of £505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale
Pacific Grove

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Alternative routes for Grimsby to San Francisco

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Top airline flying from Grimsby to San Francisco

Discover the top airline that operate flights from Grimsby to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£589Average£647FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Grimsby to San Francisco?

Cheapflights makes it easy to find Grimsby to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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 San Francisco from Grimsby.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Grimsby to San Francisco flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Grimsby to San Francisco become cheaper?

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

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