What is the cheapest airline that flies from San Francisco to Duluth Intl?

Delta and United Airlines are the most popular carriers operating from San Francisco to Duluth Intl

What airlines fly to Duluth?

Delta, United Airlines and Sun Country Air are the top three most popular airlines that fly to Duluth from San Francisco according to our data. Delta is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Duluth. Keep in mind that there are 3 different airlines that fly to Duluth on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Francisco Airport to Duluth Intl Airport?

Prices for flights from San Francisco Airport to Duluth Intl Airport are updated daily.

How many operators does momondo search for flights from San Francisco Airport to Duluth Intl Airport?

As of September 2025, there are 3 operators available to choose from for flights from San Francisco Airport to Duluth Intl Airport.

How old do you have to be to fly from San Francisco Airport to Duluth Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Duluth Intl Airport.

What documentation or ID do you need to fly to Duluth Intl Airport?

The required travel and health documents for your Duluth Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Duluth Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$147 Cheap Flights from San Francisco to Duluth in 2025/26

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Find the cheapest flights from San Francisco to Duluth

Round-trip

One-way

Last minute

Cheap round-trip flights

12:40 am - 11:07 amSFO-DLH

8h 27m1 stop

4:20 pm - 11:55 pmDLH-SFO

9h 35m1 stop

$303Delta

Find Deal

Fri, Mar 6 - Wed, Mar 11

3:23 pm - 11:42 pmSFO-DLH

6h 19m1 stop

5:18 am - 10:53 amDLH-SFO

7h 35m1 stop

$353Delta

Find Deal

Tue, Oct 14 - Tue, Oct 21

6:15 am - 11:52 pmSFO-DLH

15h 37m1 stop

4:20 pm - 11:55 pmDLH-SFO

9h 35m1 stop

$363Delta

Find Deal

Sat, Mar 7 - Wed, Mar 11

12:40 am - 11:07 amSFO-DLH

8h 27m1 stop

12:00 pm - 6:15 pmDLH-SFO

8h 15m1 stop

$373Delta

Find Deal

Wed, Feb 11 - Sun, Feb 15

12:40 am - 11:07 amSFO-DLH

8h 27m1 stop

5:10 am - 5:52 pmDLH-SFO

14h 42m2 stops

$377Delta

Find Deal

Fri, Mar 6 - Wed, Mar 11

6:15 am - 3:24 pmSFO-DLH

7h 09m1 stop

12:00 pm - 6:15 pmDLH-SFO

8h 15m1 stop

$418Delta

Find Deal

Thu, Feb 12 - Sun, Feb 15

6:35 am - 10:08 pmSFO-DLH

13h 33m2 stops

11:20 am - 6:28 pmDLH-SFO

9h 08m1 stop

$436United Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

11:00 pm - 10:45 amSFO-DLH

9h 45m1 stop

8:00 am - 1:35 pmDLH-SFO

7h 35m1 stop

$458United Airlines

Find Deal

Sat, Sep 27 - Tue, Sep 30

8:05 pm - 2:24 pmSFO-DLH

16h 19m2 stops

4:20 pm - 11:55 pmDLH-SFO

9h 35m1 stop

$466Delta

Find Deal

Sat, Mar 7 - Wed, Mar 11

6:15 am - 3:24 pmSFO-DLH

7h 09m1 stop

5:10 am - 5:52 pmDLH-SFO

14h 42m2 stops

$472Delta

Find Deal

Sat, Mar 7 - Wed, Mar 11

Delta flights from San Francisco to Duluth

Our best Delta deals on San Francisco to Duluth flight tickets

Delta

Mar 6

SFO12:40 amSan Francisco

8h 27m

1 stop

DLH11:07 amDuluth Intl

Mar 11

DLH4:20 pmDuluth Intl

9h 35m

1 stop

SFO11:55 pmSan Francisco

$303

Find similar

Delta

Oct 14

SFO3:23 pmSan Francisco

6h 19m

1 stop

DLH11:42 pmDuluth Intl

Oct 21

DLH5:18 amDuluth Intl

7h 35m

1 stop

SFO10:53 amSan Francisco

$353

Find similar

Delta

Mar 7

SFO6:15 amSan Francisco

15h 37m

1 stop

DLH11:52 pmDuluth Intl

Mar 11

DLH4:20 pmDuluth Intl

9h 35m

1 stop

SFO11:55 pmSan Francisco

$363

Find similar

United Airlines flights from San Francisco to Duluth

Our best United Airlines deals on San Francisco to Duluth flight tickets

United Airlines

Oct 14

SFO6:35 amSan Francisco

13h 33m

2 stops

DLH10:08 pmDuluth Intl

Oct 21

DLH11:20 amDuluth Intl

9h 08m

1 stop

SFO6:28 pmSan Francisco

$436

Find similar

United Airlines

Sep 27

SFO11:00 pmSan Francisco

9h 45m

1 stop

DLH10:45 amDuluth Intl

Sep 30

DLH8:00 amDuluth Intl

7h 35m

1 stop

SFO1:35 pmSan Francisco

$458

Find similar

United Airlines

Oct 14

SFO6:35 amSan Francisco

13h 33m

2 stops

DLH10:08 pmDuluth Intl

Oct 21

DLH11:20 amDuluth Intl

13h 36m

2 stops

SFO10:56 pmSan Francisco

$504

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Fri 3/6

12:40 am-11:07 am

1 stop8h 27m

Duluth Intl

Wed 3/11

4:20 pm-11:55 pm

1 stop9h 35m

$303

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Tue 10/14

3:23 pm-11:42 pm

1 stop6h 19m

Duluth Intl

Tue 10/21

5:18 am-10:53 am

1 stop7h 35m

$353

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 3/7

6:15 am-11:52 pm

1 stop15h 37m

Duluth Intl

Wed 3/11

4:20 pm-11:55 pm

1 stop9h 35m

$363

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Wed 2/11

12:40 am-11:07 am

1 stop8h 27m

Duluth Intl

Sun 2/15

12:00 pm-6:15 pm

1 stop8h 15m

$373

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Fri 3/6

12:40 am-11:07 am

1 stop8h 27m

Duluth Intl

Wed 3/11

5:10 am-5:52 pm

2 stops14h 42m

$377

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Thu 2/12

6:15 am-3:24 pm

1 stop7h 09m

Duluth Intl

Sun 2/15

12:00 pm-6:15 pm

1 stop8h 15m

$418

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Tue 10/14

6:35 am-10:08 pm

2 stops13h 33m

Duluth Intl

Tue 10/21

11:20 am-6:28 pm

1 stop9h 08m

$436

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 9/27

11:00 pm-10:45 am

1 stop9h 45m

Duluth Intl

Tue 9/30

8:00 am-1:35 pm

1 stop7h 35m

$458

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 3/7

8:05 pm-2:24 pm

2 stops16h 19m

Duluth Intl

Wed 3/11

4:20 pm-11:55 pm

1 stop9h 35m

$466

San FranciscoDuluth

SFO - DLH

SFODLH

San Francisco

Sat 3/7

6:15 am-3:24 pm

1 stop7h 09m

Duluth Intl

Wed 3/11

5:10 am-5:52 pm

2 stops14h 42m

$472

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Francisco to Duluth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Duluth?

The cheapest month to fly to Duluth from San Francisco is in April. Flight prices, which tend to average around $278, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Duluth from San Francisco during November instead. Flights to Duluth in November, while not as cheap as those in April, still average around $288.

What is the cheapest day to depart on your flight to Duluth?

The cheapest day to depart from San Francisco to Duluth is on a Tuesday when prices can be found for as low as $288. On the other hand, Sunday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $658.

What is the cheapest time of day to depart on your flight to Duluth?

Flying to Duluth from San Francisco in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $388 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Duluth is in the evening when prices are around $443.

When to book flights from San Francisco to Duluth

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Duluth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Francisco to Duluth (SFO to DLH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Duluth

Direct flights	None

There are no direct flights from San Francisco to Duluth. There are no popular flight routes from San Francisco to Duluth.

Search flight deals

How far is San Francisco to Duluth Intl by plane?
The distance between San Francisco and Duluth Intl is about 1655.0 mi. A reasonable flight in good conditions will take 6h 19m.
When did momondo last update prices for flights from San Francisco Airport to Duluth Intl Airport?
Prices for flights from San Francisco Airport to Duluth Intl Airport are updated daily.
How many operators does momondo search for flights from San Francisco Airport to Duluth Intl Airport?
As of September 2025, there are 3 operators available to choose from for flights from San Francisco Airport to Duluth Intl Airport.
How old do you have to be to fly from San Francisco Airport to Duluth Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The required travel and health documents for your Duluth Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Duluth Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Duluth?
Based on momondo bookings for flights between San Francisco and Duluth, the leading airline is Delta, making up 63% of the total bookings. Other popular airlines include United Airlines with 21% and Sun Country Air with 15%.

Best airlines flying from San Francisco to Duluth

Compare and see reviews for airlines that fly from San Francisco to Duluth with momondo

Airline	Rating	Free Cancellation	Price
Sun Country Air	PriceFrom $188	Free Cancellation	Rating 6.9 330 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 8,931 reviews	Search United Airlines flights
Delta	PriceFrom $278	Free Cancellation	Rating 7.9 7,956 reviews	Search Delta flights

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Duluth?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Duluth from San Francisco.

Can I find flights from San Francisco to Duluth with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Francisco to Duluth flights to just show those with flexible booking policies.

How can momondo help me find flights from San Francisco to Duluth?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Duluth.

I’m not ready to book a flight from San Francisco to Duluth right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Francisco to Duluth now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Duluth and let you know when they change.