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$243+ Cheap flights from San Francisco to Duluth (SFO - DLH)

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DLH
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from San Francisco to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Duluth (DLH). 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 July 3, 2025.

Round-trip from

$278
(Delta)

One-way from

$243
(Delta)

Popular in

February

Cheapest in

April

Average price

$343
From San Francisco to Duluth Intl
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One-way flight from San Francisco to Duluth Intl
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Highest demand for flights based on searches. 18% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Francisco to Duluth

Cheapest flights from San Francisco to Duluth
Explore the most affordable flight options available from San Francisco to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1712:40 amSFO - DLH
1 stop7h 35mDelta
Sat 8/237:50 amDLH - SFO
1 stop7h 40mDelta
Deal found 7/1$278
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:59 pmSFO - DLH
1 stop8h 46mUnited Airlines
Mon 9/2211:20 amDLH - SFO
2 stops22h 21mUnited Airlines
Deal found 7/2$453

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to Duluth 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 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from San Francisco to Duluth that are best for you.

Fly from

San Francisco

Fly to

Duluth

Route

Depart

Return

Price

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sun 8/17

12:40 am-10:15 am

1 stop7h 35m

Duluth Intl

Mon 8/25

7:50 am-1:30 pm

1 stop7h 40m

$278

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Wed 9/17

11:59 pm-10:45 am

1 stop8h 46m

Duluth Intl

Mon 9/22

11:20 am-7:41 am

2 stops22h 21m

$453

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Fri 8/8

12:50 am-10:23 am

1 stop7h 33m

$243

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Mon 8/11

10:55 pm-10:51 am

1 stop9h 56m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from San Francisco to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from San Francisco with our price prediction graph.
Estimated round-trip 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 San Francisco to Duluth

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Duluth (average of $335). Flying from San Francisco to Duluth in June is currently the most expensive (average of $475). 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.

What is the cheapest time of day to fly from SFO to DLH?

Find hourly flight availability from San Francisco to Duluth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from San Francisco to Duluth, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 13% versus a flight in the evening.

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. 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 Duluth. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from San Francisco to Duluth to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

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

  • What are the cheapest airlines flying from San Francisco to Duluth round-trip?

    According to our current data, Delta ($278), and United Airlines ($453) offers the cheapest pricing from San Francisco to Duluth. Users have found that Delta is 37% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Duluth 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 San Francisco to Duluth?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Duluth (average of $335). Flying from San Francisco to Duluth in June is currently the most expensive (average of $475). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Two Harbors
Superior

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Top 2 airlines flying from San Francisco to Duluth

Discover the top 2 airlines that operate flights from San Francisco to Duluth. 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 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$388FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$605FlexibilityNo cancel feeOn-time69%

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