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

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

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

Prices for flights from San Diego Airport to Duluth Intl Airport refresh daily.

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

The number of operators available for flights from San Diego Airport to Duluth Intl Airport is 1 as of October 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Duluth Intl Airport.

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

The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$202 Cheap Flights from San Diego to Duluth in 2025/26

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Find the cheapest flights from San Diego to Duluth

Round-trip

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Cheap round-trip flights

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4:41 pm - 11:50 pmSAN-DLH

5h 09m1 stop

4:18 pm - 8:42 pmDLH-SAN

6h 24m1 stop

$348Delta

Find Deal

Fri, Nov 14 - Tue, Nov 18

4:41 pm - 11:50 pmSAN-DLH

5h 09m1 stop

8:14 am - 6:11 pmDLH-SAN

11h 57m2 stops

$354Delta

Find Deal

Fri, Nov 14 - Tue, Nov 18

10:00 pm - 11:21 amSAN-DLH

11h 21m2 stops

5:10 am - 2:15 pmDLH-SAN

11h 05m2 stops

$359Delta

Find Deal

Fri, Nov 14 - Tue, Nov 18

8:50 am - 7:26 pmSAN-DLH

8h 36m1 stop

4:20 pm - 11:42 pmDLH-SAN

9h 22m2 stops

$369Delta

Find Deal

Sat, Apr 25 - Wed, Apr 29

8:50 am - 9:57 pmSAN-DLH

11h 07m2 stops

11:26 am - 6:37 pmDLH-SAN

9h 11m1 stop

$374United Airlines

Find Deal

Sat, Apr 25 - Wed, Apr 29

10:45 am - 9:57 pmSAN-DLH

9h 12m2 stops

11:26 am - 11:44 pmDLH-SAN

14h 18m2 stops

$379United Airlines

Find Deal

Sat, Apr 25 - Wed, Apr 29

8:50 am - 7:26 pmSAN-DLH

8h 36m1 stop

8:05 am - 12:55 pmDLH-SAN

6h 50m1 stop

$388Delta

Find Deal

Sat, Apr 25 - Wed, Apr 29

6:20 am - 3:19 pmSAN-DLH

6h 59m1 stop

8:05 am - 12:55 pmDLH-SAN

6h 50m1 stop

$443Delta

Find Deal

Sat, Apr 25 - Wed, Apr 29

6:20 am - 10:57 amSAN-DLH

26h 37m1 stop

8:05 am - 12:55 pmDLH-SAN

6h 50m1 stop

$453Delta

Find Deal

Sat, Apr 25 - Wed, Apr 29

4:45 pm - 10:55 pmSAN-DLH

28h 10m1 stop

3:03 pm - 9:44 amDLH-SAN

20h 41m1 stop

$829United Airlines

Find Deal

Tue, Dec 23 - Tue, Dec 30

Delta flights from San Diego to Duluth

Our best Delta deals on San Diego to Duluth flight tickets

Delta

Nov 14

SAN4:41 pmSan Diego

5h 09m

1 stop

DLH11:50 pmDuluth Intl

Nov 18

DLH4:18 pmDuluth Intl

6h 24m

1 stop

SAN8:42 pmSan Diego

$348

Find similar

Delta

Nov 14

SAN4:41 pmSan Diego

5h 09m

1 stop

DLH11:50 pmDuluth Intl

Nov 18

DLH8:14 amDuluth Intl

11h 57m

2 stops

SAN6:11 pmSan Diego

$354

Find similar

Delta

Nov 14

SAN10:00 pmSan Diego

11h 21m

2 stops

DLH11:21 amDuluth Intl

Nov 18

DLH5:10 amDuluth Intl

11h 05m

2 stops

SAN2:15 pmSan Diego

$359

Find similar

United Airlines flights from San Diego to Duluth

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

United Airlines

Apr 25

SAN8:50 amSan Diego

11h 07m

2 stops

DLH9:57 pmDuluth Intl

Apr 29

DLH11:26 amDuluth Intl

9h 11m

1 stop

SAN6:37 pmSan Diego

$374

Find similar

United Airlines

Apr 25

SAN10:45 amSan Diego

9h 12m

2 stops

DLH9:57 pmDuluth Intl

Apr 29

DLH11:26 amDuluth Intl

14h 18m

2 stops

SAN11:44 pmSan Diego

$379

Find similar

United Airlines

Dec 23

SAN4:45 pmSan Diego

28h 10m

1 stop

DLH10:55 pmDuluth Intl

Dec 30

DLH3:03 pmDuluth Intl

20h 41m

1 stop

SAN9:44 amSan Diego

$829

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Fri 11/14

4:41 pm-11:50 pm

1 stop5h 09m

Duluth Intl

Tue 11/18

4:18 pm-8:42 pm

1 stop6h 24m

$348

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Fri 11/14

4:41 pm-11:50 pm

1 stop5h 09m

Duluth Intl

Tue 11/18

8:14 am-6:11 pm

2 stops11h 57m

$354

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Fri 11/14

10:00 pm-11:21 am

2 stops11h 21m

Duluth Intl

Tue 11/18

5:10 am-2:15 pm

2 stops11h 05m

$359

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Sat 4/25

8:50 am-7:26 pm

1 stop8h 36m

Duluth Intl

Wed 4/29

4:20 pm-11:42 pm

2 stops9h 22m

$369

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Sat 4/25

8:50 am-9:57 pm

2 stops11h 07m

Duluth Intl

Wed 4/29

11:26 am-6:37 pm

1 stop9h 11m

$374

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Sat 4/25

10:45 am-9:57 pm

2 stops9h 12m

Duluth Intl

Wed 4/29

11:26 am-11:44 pm

2 stops14h 18m

$379

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Sat 4/25

8:50 am-7:26 pm

1 stop8h 36m

Duluth Intl

Wed 4/29

8:05 am-12:55 pm

1 stop6h 50m

$388

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Sat 4/25

6:20 am-3:19 pm

1 stop6h 59m

Duluth Intl

Wed 4/29

8:05 am-12:55 pm

1 stop6h 50m

$443

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Sat 4/25

6:20 am-10:57 am

1 stop26h 37m

Duluth Intl

Wed 4/29

8:05 am-12:55 pm

1 stop6h 50m

$453

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Tue 12/23

4:45 pm-10:55 pm

1 stop28h 10m

Duluth Intl

Tue 12/30

3:03 pm-9:44 am

1 stop20h 41m

$829

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Diego 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 Diego is in March. 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 March, then book flights to Duluth from San Diego during October instead. Flights to Duluth in October, while not as cheap as those in March, still average around $358.

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

The cheapest day to depart from San Diego to Duluth is on a Tuesday when prices can be found for as low as $368. On the other hand, Sunday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $616.

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

Flying to Duluth from San Diego in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $368 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Duluth is in the morning when prices are around $498.

When to book flights from San Diego to Duluth

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

Estimated round-trip price

Cheap San Diego to Duluth (SAN to DLH) flight deals and tips

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

Direct flights	None

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

Search flight deals

How far is San Diego to Duluth Intl by plane?
The distance between San Diego and Duluth Intl is about 1634.9 mi. Typically, this will take 5h 09m by plane in normal conditions.
When did momondo last update prices for flights from San Diego Airport to Duluth Intl Airport?
Prices for flights from San Diego Airport to Duluth Intl Airport refresh daily.
How many operators does momondo search for flights from San Diego Airport to Duluth Intl Airport?
The number of operators available for flights from San Diego Airport to Duluth Intl Airport is 1 as of October 2025.
How old do you have to be to fly from San Diego Airport to Duluth Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from San Diego to Duluth?
momondo data reveals that the most frequently booked airline on the route from San Diego to Duluth is Delta, representing 100% of all bookings.

Best airlines flying from San Diego to Duluth

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $278	Free Cancellation	Rating 7.9 7,998 reviews		Search Delta flights

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Diego to Duluth. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Duluth from San Diego with this policy.

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

Once all potential San Diego to Duluth flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from San Diego 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.