HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duluth

$278+ Cheap flights from San Francisco to Duluth (SFO - DLH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DLH
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Duluth with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 agosto 14, 2025.

Round-trip from

$278
(Delta)

Popular in

February

Cheapest in

April

Average price

$448
From San Francisco to Duluth Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 agosto 14, 2025.

This Delta deal was found by Cheapflights users on 8/13. 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.
vie. 10/312:45 amSFO - DLH
1 stop7h 17mDelta
sáb. 10/1112:02 pmDLH - SFO
1 stop7h 22mDelta
Deal found 8/13$278
This Delta deal was found by Cheapflights users on 8/12. 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.
mar. 9/1612:45 amSFO - DLH
1 stop7h 22mDelta
lun. 9/227:50 amDLH - SFO
1 stop7h 55mDelta
Deal found 8/12$313
This Delta deal was found by Cheapflights users on 8/11. 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.
mar. 8/2612:35 amSFO - DLH
1 stop7h 40mDelta
dom. 8/315:10 amDLH - SFO
1 stop7h 47mDelta
Deal found 8/11$328
This United Airlines deal was found by Cheapflights users on 8/12. 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.
vie. 8/2911:59 pmSFO - DLH
1 stop8h 46mUnited Airlines
mié. 9/33:10 pmDLH - SFO
1 stop8h 13mUnited Airlines
Deal found 8/12$352
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 9/1711:48 pmSFO - DLH
1 stop8h 57mUnited Airlines
lun. 9/223:10 pmDLH - SFO
1 stop8h 13mUnited Airlines
Deal found 8/13$433
This Delta deal was found by Cheapflights users on 8/12. 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.
vie. 8/153:40 pmSFO - DLH
1 stop5h 04mDelta
lun. 8/184:19 pmDLH - SFO
1 stop7h 10mDelta
Deal found 8/12$478
This United Airlines deal was found by Cheapflights users on 8/12. 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.
mié. 8/2711:59 pmSFO - DLH
1 stop8h 46mUnited Airlines
dom. 8/319:45 amDLH - SFO
1 stop9h 22mUnited Airlines
Deal found 8/12$498
This Delta deal was found by Cheapflights users on 8/14. 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.
mié. 10/85:45 amSFO - DLH
1 stop7h 45mDelta
jue. 10/1612:02 pmDLH - SFO
1 stop7h 22mDelta
Deal found 8/14$518
This United Airlines deal was found by Cheapflights users on 8/12. 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.
vie. 9/1911:10 pmSFO - DLH
1 stop9h 35mUnited Airlines
dom. 9/219:45 amDLH - SFO
1 stop25h 11mUnited Airlines
Deal found 8/12$547

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 agosto 14, 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

vie. 10/3

12:45 am-10:02 am

1 stop7h 17m

Duluth Intl

sáb. 10/11

12:02 pm-5:24 pm

1 stop7h 22m

$278

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

mar. 9/16

12:45 am-10:07 am

1 stop7h 22m

Duluth Intl

lun. 9/22

7:50 am-1:45 pm

1 stop7h 55m

$313

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

mar. 8/26

12:35 am-10:15 am

1 stop7h 40m

Duluth Intl

dom. 8/31

5:10 am-10:57 am

1 stop7h 47m

$328

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

vie. 8/29

11:59 pm-10:45 am

1 stop8h 46m

Duluth Intl

mié. 9/3

3:10 pm-9:23 pm

1 stop8h 13m

$352

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

mié. 9/17

11:48 pm-10:45 am

1 stop8h 57m

Duluth Intl

lun. 9/22

3:10 pm-9:23 pm

1 stop8h 13m

$433

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

jue. 9/11

11:10 pm-10:45 am

1 stop9h 35m

$297

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

mié. 9/10

12:45 am-10:07 am

1 stop7h 22m

$334

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

vie. 8/29

12:35 am-10:15 am

1 stop7h 40m

$343

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

sáb. 8/30

11:59 pm-10:45 am

1 stop8h 46m

$343

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

mar. 8/19

12:35 am-10:15 am

1 stop7h 40m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 11 results
1
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 $336). Flying from San Francisco to Duluth in June is currently the most expensive (average of $476). 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 agosto 14, 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.

How much does it cost to fly round-trip from San Francisco to Duluth?

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 agosto 14, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Sun Country Air 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
7,980 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
Sun Country Air
6.9
Okay
333 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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, Sun Country Air ($188), United Airlines ($278), and Delta ($288) offers the cheapest pricing from San Francisco to Duluth. Users have found that Sun Country Air is 57% 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 $336). Flying from San Francisco to Duluth in June is currently the most expensive (average of $476). 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 Duluth?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Duluth

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Minneapolis flights
San Francisco to Minneapolis flights
Santa Ana to Minneapolis flights
Ontario to Minneapolis flights
San Diego to Minneapolis flights
San Jose to Minneapolis flights
Sacramento to Minneapolis flights
Oakland to Minneapolis flights
Las Vegas to Minneapolis flights
Burbank to Minneapolis flights
Long Beach to Minneapolis flights
Palm Springs to Minneapolis flights
Ontario to Sioux Falls flights
Los Angeles to Sioux Falls flights
Los Angeles to Fargo flights
Fresno to Minneapolis flights
Reno to Minneapolis flights
Reno to Fargo flights
Santa Barbara to Minneapolis flights
San Francisco to Sioux Falls flights
Sacramento to Duluth flights
Medford to Minneapolis flights
Santa Rosa to Minneapolis flights
Ontario to Fargo flights
Sacramento to Sioux Falls flights
Santa Ana to Fargo flights
San Diego to Rochester flights
Santa Ana to Sioux Falls flights
Las Vegas to Sioux Falls flights
San Francisco to Rochester flights
Burbank to Sioux Falls flights
San Diego to Fargo flights
San Diego to Sioux Falls flights
San Francisco to Fargo flights
Sacramento to Fargo flights
San Luis Obispo to Minneapolis flights
Los Angeles to Duluth flights
Arcata to Minneapolis flights
San Diego to Duluth flights
Bakersfield to Minneapolis flights
San Jose to Fargo flights
Las Vegas to Fargo flights
Los Angeles to Rochester flights
Los Angeles to Mason City flights
Monterey to Minneapolis flights
Long Beach to Sioux Falls flights
Palm Springs to Sioux Falls flights
Sacramento to La Crosse flights
Bakersfield to Sioux Falls flights

Top 3 airlines flying from San Francisco to Duluth

Discover the top 3 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$188Average$368FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$278Average$605FlexibilityNo cancel feeOn-time69%
DeltaCheapest$288Average$396FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.