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Cheap flights from San Diego to Duluth from $348

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Duluth departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Diego to Duluth

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:15 am - 3:41 pmSAN  San Diego-DLH Duluth Intl
7h 26m1 stop Minneapolis St Paul
Delta Logo
5:14 am - 10:48 amDLH  Duluth Intl-SAN San Diego
7h 34m1 stop Minneapolis St Paul
$348Delta
Sat, Oct 31 - Sun, Nov 8
Delta Logo
11:54 am - 7:25 pmSAN  San Diego-DLH Duluth Intl
5h 31m1 stop Minneapolis St Paul
Delta Logo
5:15 am - 10:44 amDLH  Duluth Intl-SAN San Diego
7h 29m1 stop Minneapolis St Paul
$348Delta
Tue, Sep 22 - Mon, Sep 28
United Airlines Logo
2:07 pm - 11:22 pmSAN  San Diego-DLH Duluth Intl
7h 15m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 11:25 amDLH  Duluth Intl-SAN San Diego
7h 25m1 stop Chicago O'Hare Intl
$348United Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
2:15 pm - 11:22 pmSAN  San Diego-DLH Duluth Intl
7h 07m1 stop Chicago O'Hare Intl
United Airlines Logo
7:45 am - 3:02 pmDLH  Duluth Intl-SAN San Diego
9h 17m1 stop Chicago O'Hare Intl
$348United Airlines
Wed, Sep 2 - Sun, Sep 6
Delta Logo
3:30 pm - 10:57 pmSAN  San Diego-DLH Duluth Intl
5h 27m1 stop Minneapolis St Paul
Delta Logo
4:25 pm - 8:17 pmDLH  Duluth Intl-SAN San Diego
5h 52m1 stop Minneapolis St Paul
$348Delta
Sat, Nov 7 - Sun, Nov 15
United Airlines Logo
11:00 am - 11:22 pmSAN  San Diego-DLH Duluth Intl
10h 22m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
7:45 am - 3:02 pmDLH  Duluth Intl-SAN San Diego
9h 17m1 stop Chicago O'Hare Intl
$354United Airlines
Wed, Sep 2 - Sun, Sep 6
United Airlines Logo
8:45 am - 11:22 pmSAN  San Diego-DLH Duluth Intl
12h 37m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
6:00 am - 11:25 amDLH  Duluth Intl-SAN San Diego
7h 25m1 stop Chicago O'Hare Intl
$354United Airlines
Wed, Sep 30 - Sat, Oct 3
Delta Logo
3:30 pm - 10:57 pmSAN  San Diego-DLH Duluth Intl
5h 27m1 stop Minneapolis St Paul
Delta Logo
5:04 am - 2:29 pmDLH  Duluth Intl-SAN San Diego
11h 25m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County
$354Delta
Sat, Nov 7 - Sun, Nov 15
Delta Logo
6:15 am - 3:41 pmSAN  San Diego-DLH Duluth Intl
7h 26m1 stop Minneapolis St Paul
Delta Logo
12:34 pm - 11:24 pmDLH  Duluth Intl-SAN San Diego
12h 50m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$354Delta
Sat, Nov 7 - Sun, Nov 15
Delta Logo
10:54 am - 10:35 pmSAN  San Diego-DLH Duluth Intl
9h 41m2 stops Los Angeles Minneapolis St Paul
Delta Logo
5:15 am - 10:44 amDLH  Duluth Intl-SAN San Diego
7h 29m1 stop Minneapolis St Paul
$354Delta
Tue, Sep 22 - Mon, Sep 28

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Delta flights from San Diego to Duluth

Our best Delta deals on San Diego to Duluth flight tickets
Delta
Nov 7
SAN3:30 pmSan Diego
5h 27m
1 stop
DLH10:57 pmDuluth Intl
Nov 15
DLH4:25 pmDuluth Intl
5h 52m
1 stop
SAN8:17 pmSan Diego
$348
Delta
Nov 7
SAN3:30 pmSan Diego
5h 27m
1 stop
DLH10:57 pmDuluth Intl
Nov 15
DLH5:04 amDuluth Intl
11h 25m
2 stops
SAN2:29 pmSan Diego
$354
Delta
Nov 7
SAN10:57 amSan Diego
10h 00m
2 stops
DLH10:57 pmDuluth Intl
Nov 15
DLH5:04 amDuluth Intl
11h 59m
2 stops
SAN3:03 pmSan Diego
$359

United Airlines flights from San Diego to Duluth

Our best United Airlines deals on San Diego to Duluth flight tickets
United Airlines
Sep 30
SAN11:00 amSan Diego
10h 22m
2 stops
DLH11:22 pmDuluth Intl
Oct 3
DLH6:00 amDuluth Intl
10h 50m
2 stops
SAN2:50 pmSan Diego
$395
United Airlines
Sep 2
SAN11:00 amSan Diego
10h 22m
2 stops
DLH11:22 pmDuluth Intl
Sep 6
DLH7:45 amDuluth Intl
9h 05m
2 stops
SAN2:50 pmSan Diego
$398
United Airlines
Nov 14
SAN6:50 amSan Diego
8h 48m
1 stop
DLH5:38 pmDuluth Intl
Nov 18
DLH11:16 amDuluth Intl
9h 18m
1 stop
SAN6:34 pmSan Diego
$448

momondo Fare Finder

 
Customize your flight search to find flights from San Diego 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, momondo users made 832,500 searches. Data last updated August 14, 2026.
Use the filters below to find and compare flights from San Diego to Duluth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Sat 10/31

6:15 am-3:41 pm

1 stop7h 26m

Duluth Intl

Sun 11/8

5:14 am-10:48 am

1 stop7h 34m

$348

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Tue 9/22

11:54 am-7:25 pm

1 stop5h 31m

Duluth Intl

Mon 9/28

5:15 am-10:44 am

1 stop7h 29m

$348

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Wed 9/30

2:07 pm-11:22 pm

1 stop7h 15m

Duluth Intl

Sat 10/3

6:00 am-11:25 am

1 stop7h 25m

$348

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Wed 9/2

2:15 pm-11:22 pm

1 stop7h 07m

Duluth Intl

Sun 9/6

7:45 am-3:02 pm

1 stop9h 17m

$348
Quickest round-trip

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Sat 11/7

3:30 pm-10:57 pm

1 stop5h 27m

Duluth Intl

Sun 11/15

4:25 pm-8:17 pm

1 stop5h 52m

$348

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Wed 9/2

11:00 am-11:22 pm

2 stops10h 22m

Duluth Intl

Sun 9/6

7:45 am-3:02 pm

1 stop9h 17m

$354

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Wed 9/30

8:45 am-11:22 pm

2 stops12h 37m

Duluth Intl

Sat 10/3

6:00 am-11:25 am

1 stop7h 25m

$354

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Sat 11/7

3:30 pm-10:57 pm

1 stop5h 27m

Duluth Intl

Sun 11/15

5:04 am-2:29 pm

2 stops11h 25m

$354

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Sat 11/7

6:15 am-3:41 pm

1 stop7h 26m

Duluth Intl

Sun 11/15

12:34 pm-11:24 pm

2 stops12h 50m

$354

San DiegoDuluth

SAN San Diego - DLH Duluth Intl

SANDLH

San Diego

Tue 9/22

10:54 am-10:35 pm

2 stops9h 41m

Duluth Intl

Mon 9/28

5:15 am-10:44 am

1 stop7h 29m

$354

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Duluth from

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

What is the typical price of a round-trip flight between San Diego and Duluth?

Prices are currently low for flights on this route.

Typical prices usually range from $389 to $692.
The lowest price recently found on this route was $348.

What is the cheapest month to fly to Duluth?

The cheapest month to fly to Duluth from San Diego is in April. Flight prices, which tend to average around $0, 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 Diego during February instead. Flights to Duluth in February, while not as cheap as those in April, still average around $0.

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

Fastest flight time

5h 11m

Direct flights

None
The fastest flight from San Diego to Duluth takes 5h 11m
There are no direct flights from San Diego to Duluth. There are no popular flight routes from San Diego to Duluth.
Search flight deals

Frequently asked questions about flying from San Diego to Duluth

  • 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 11m 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?

  • 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?

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
United AirlinesPriceFrom $308Free CancellationRating
7.4
10,114 reviews
Search United Airlines flights
DeltaPriceFrom $333Free CancellationRating
7.8
8,509 reviews
Search Delta flights

Traveling to a place near Duluth?

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

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.

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