HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duluth

$343+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DLH
May 2 — May 91
Sat 5/2
Sat 5/9
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

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 April 2, 2026.

This United Airlines deal was found by Cheapflights users on 3/31. 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.
Fri 7/312:50 am
SFO
-
DLH
1 stop7h 53m
United Airlines
Wed 7/155:00 am
DLH
-
SFO
1 stop7h 29m
United Airlines
Deal found 3/31$358
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 4/3011:56 pm
SFO
-
DLH
1 stop8h 38m
United Airlines
Thu 5/76:44 pm
DLH
-
SFO
1 stop8h 06m
United Airlines
Deal found 3/31$367
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Fri 4/173:30 pm
SFO
-
DLH
1 stop6h 59m
United Airlines
Sat 4/256:57 pm
DLH
-
SFO
1 stop7h 42m
United Airlines
Deal found 3/30$383
This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 10/103:00 pm
SFO
-
DLH
1 stop6h 48m
Delta
Sat 10/178:05 am
DLH
-
SFO
1 stop7h 11m
Delta
Deal found 3/30$390
This Delta deal was found by Cheapflights users on 3/28. 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.
Sat 5/96:15 am
SFO
-
DLH
1 stop7h 33m
Delta
Tue 5/127:58 am
DLH
-
SFO
1 stop7h 09m
Delta
Deal found 3/28$403
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 4/163:30 pm
SFO
-
DLH
1 stop6h 59m
United Airlines
Mon 4/206:57 pm
DLH
-
SFO
1 stop7h 42m
United Airlines
Deal found 3/31$408
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Sat 4/1111:52 pm
SFO
-
DLH
1 stop8h 47m
United Airlines
Wed 4/156:57 pm
DLH
-
SFO
1 stop7h 42m
United Airlines
Deal found 3/29$453
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Mon 10/1912:50 am
SFO
-
DLH
1 stop7h 54m
United Airlines
Sat 10/2411:26 am
DLH
-
SFO
1 stop9h 39m
United Airlines
Deal found 3/30$458
This United Airlines deal was found by Cheapflights users on 3/31. 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 6/2412:50 am
SFO
-
DLH
1 stop7h 45m
United Airlines
Tue 6/306:25 pm
DLH
-
SFO
1 stop8h 07m
United Airlines
Deal found 3/31$470
This Delta deal was found by Cheapflights users on 3/31. 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.
Sat 9/56:15 am
SFO
-
DLH
1 stop7h 04m
Delta
Sun 9/134:20 pm
DLH
-
SFO
1 stop7h 15m
Delta
Deal found 3/31$478
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 4/712:45 am
SFO
-
DLH
1 stop7h 54m
United Airlines
Wed 4/156:57 pm
DLH
-
SFO
1 stop7h 42m
United Airlines
Deal found 3/30$490

Find 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 April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$358
(United Airlines)

One-way from

$343
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$504
Provider with most accurate pricing for San Francisco-Duluth Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Duluth Intl flights.
Search Deals
From San Francisco to Duluth Intl
Search Deals
One-way flight from San Francisco to Duluth Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 2, 2026.
Use the filters below to find and compare flights from San Francisco to Duluth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Fri 4/17

3:30 pm-12:29 am

1 stop6h 59m

Duluth Intl

Tue 4/21

5:00 am-10:38 am

1 stop7h 38m

$408

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 5/9

6:15 am-3:48 pm

1 stop7h 33m

Duluth Intl

Tue 5/12

7:58 am-1:07 pm

1 stop7h 09m

$433
Quickest round-trip

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 5/9

5:30 am-2:22 pm

1 stop6h 52m

Duluth Intl

Tue 5/12

5:00 am-10:33 am

1 stop7h 33m

$458

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Tue 4/14

12:45 am-10:39 am

1 stop7h 54m

Duluth Intl

Mon 4/20

3:08 pm-9:20 pm

1 stop8h 12m

$508

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Wed 8/5

5:05 am-2:28 pm

1 stop7h 23m

Duluth Intl

Tue 8/25

5:00 am-1:09 pm

1 stop10h 09m

$527

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Tue 4/28

12:35 pm-10:39 am

2 stops20h 04m

Duluth Intl

Sat 5/2

7:45 am-3:35 pm

1 stop9h 50m

$532

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Wed 4/15

12:45 am-10:39 am

1 stop7h 54m

Duluth Intl

Mon 4/20

3:08 pm-7:29 am

2 stops18h 21m

$592

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Fri 4/17

11:52 pm-10:38 am

1 stop8h 46m

Duluth Intl

Sat 4/25

5:00 am-6:04 pm

2 stops15h 04m

$592
Cheapest one-way

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 5/23

10:38 pm-10:43 am

1 stop10h 05m

$343

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 7/11

5:05 am-2:28 pm

1 stop7h 23m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Compare providers for flights from San Francisco to Duluth

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Duluth in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Duluth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Duluth flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Duluth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, July is the cheapest month in which you can book a flight from San Francisco to Duluth (average of $188). Flying from San Francisco to Duluth in May is currently the most expensive (average of $424). 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.

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 April 2, 2026.
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
7.9
Good
8,369 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

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
7.9
Good
8,369 reviews
Delta
7.9
Good
8,369 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

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
9,533 reviews
Delta
7.9
Good
8,369 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

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.

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

    Departing from San Francisco to Duluth will take you 6h 59m. Airlines will cover a distance of 1656 mi. This flight may include one or multiple stops.

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

    According to our current data, Delta ($293), and United Airlines ($303) offers the cheapest pricing from San Francisco to Duluth. Users have found that Delta is 33% 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, July is the cheapest month in which you can book a flight from San Francisco to Duluth (average of $188). Flying from San Francisco to Duluth in May is currently the most expensive (average of $424). 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

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
San Diego to Minneapolis flights
Ontario to Minneapolis flights
Sacramento to Minneapolis flights
Las Vegas to Minneapolis flights
San Jose to Minneapolis flights
Burbank to Minneapolis flights
Los Angeles to Sioux Falls flights
Oakland to Minneapolis flights
Ontario to Sioux Falls flights
Long Beach to Minneapolis flights
Reno to Minneapolis flights
Fresno to Minneapolis flights
Palm Springs to Minneapolis flights
San Francisco to Fargo flights
Los Angeles to Fargo flights
Medford to Minneapolis flights
Santa Ana to Sioux Falls flights
San Luis Obispo to Minneapolis flights
San Francisco to Sioux Falls flights
Sacramento to Sioux Falls flights
San Diego to Sioux Falls flights
Las Vegas to Sioux Falls flights
Santa Barbara to Minneapolis flights
Santa Ana to Fargo flights
Las Vegas to Fargo flights
Ontario to Fargo flights
Reno to Sioux Falls flights
Reno to Fargo flights
San Diego to Fargo flights
San Jose to Fargo flights
Burbank to Sioux Falls flights
Los Angeles to Duluth flights
Sacramento to Fargo flights
Fresno to Sioux Falls flights
San Jose to Sioux Falls flights
Monterey to Minneapolis flights
Santa Rosa to Minneapolis flights
Los Angeles to Rochester flights
Los Angeles to La Crosse flights
Redding to Minneapolis flights
Oakland to Fargo flights
Palm Springs to Sioux Falls flights

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 April 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$293Average$442FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$303Average$458FlexibilityNo cancel feeOn-time69%

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.