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

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

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

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

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

The number of operators available for flights from Duluth Intl Airport to San Diego Airport is 1 as of January 2026.

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

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$309 Cheap Flights from Duluth to San Diego in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $447 to $558. The lowest price recently found on this route was $419.

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Find the cheapest flights from Duluth to San Diego

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:07 pm - 10:40 pm

DLH

SAN

9h 33m

1 stop

5:55 pm - 10:43 am

SAN

DLH

14h 48m

2 stops

$419United Airlines

Thu, Mar 19 - Tue, Mar 24

3:07 pm - 10:40 pm

DLH

SAN

9h 33m

1 stop

11:03 am - 9:54 pm

SAN

DLH

8h 51m

1 stop

$438United Airlines

Thu, Mar 19 - Tue, Mar 24

3:05 pm - 11:42 pm

DLH

SAN

10h 37m

2 stops

9:55 am - 9:59 pm

SAN

DLH

10h 04m

2 stops

$439United Airlines

Thu, Feb 5 - Mon, Feb 9

3:08 pm - 10:59 pm

DLH

SAN

9h 51m

1 stop

8:39 pm - 10:29 am

SAN

DLH

11h 50m

2 stops

$464United Airlines

Thu, Apr 2 - Mon, Apr 6

12:37 pm - 6:50 pm

DLH

SAN

8h 13m

2 stops

2:47 pm - 10:47 pm

SAN

DLH

6h 00m

1 stop

$472Delta

Thu, Mar 19 - Tue, Mar 24

4:32 pm - 11:48 pm

DLH

SAN

9h 16m

2 stops

9:55 pm - 11:56 am

SAN

DLH

12h 01m

2 stops

$477Delta

Thu, Mar 19 - Tue, Mar 24

4:32 pm - 11:40 pm

DLH

SAN

9h 08m

1 stop

10:10 pm - 11:56 am

SAN

DLH

11h 46m

2 stops

$482Delta

Mon, Mar 16 - Mon, Mar 23

12:37 pm - 10:59 pm

DLH

SAN

12h 22m

2 stops

10:10 pm - 11:56 am

SAN

DLH

11h 46m

2 stops

$487Delta

Thu, Apr 2 - Mon, Apr 6

3:07 pm - 7:48 pm

DLH

SAN

30h 41m

3 stops

10:30 pm - 2:32 pm

SAN

DLH

14h 02m

2 stops

$497United Airlines

Thu, Mar 19 - Tue, Mar 24

4:32 pm - 11:40 pm

DLH

SAN

9h 08m

1 stop

2:47 pm - 10:47 pm

SAN

DLH

6h 00m

1 stop

$502Delta

Thu, Mar 19 - Tue, Mar 24

United Airlines flights from Duluth to San Diego

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

United Airlines

Apr 24

DLH11:19 amDuluth Intl

10h 53m

2 stops

SAN8:12 pmSan Diego

Apr 28

SAN7:40 pmSan Diego

12h 49m

2 stops

DLH10:29 amDuluth Intl

$309

United Airlines

Apr 6

DLH3:08 pmDuluth Intl

9h 51m

1 stop

SAN10:59 pmSan Diego

Apr 13

SAN8:39 pmSan Diego

11h 50m

2 stops

DLH10:29 amDuluth Intl

$329

United Airlines

Apr 24

DLH11:19 amDuluth Intl

9h 32m

1 stop

SAN6:51 pmSan Diego

Apr 28

SAN6:22 pmSan Diego

14h 07m

2 stops

DLH10:29 amDuluth Intl

$350

Delta flights from Duluth to San Diego

Our best Delta deals on Duluth to San Diego flight tickets

Delta

Apr 7

DLH5:00 amDuluth Intl

8h 08m

1 stop

SAN11:08 amSan Diego

Apr 15

SAN11:40 amSan Diego

6h 21m

1 stop

DLH8:01 pmDuluth Intl

$456

Delta

Apr 7

DLH5:00 amDuluth Intl

8h 08m

1 stop

SAN11:08 amSan Diego

Apr 15

SAN10:10 pmSan Diego

11h 56m

2 stops

DLH12:06 pmDuluth Intl

$462

Delta

Apr 7

DLH4:32 pmDuluth Intl

9h 08m

1 stop

SAN11:40 pmSan Diego

Apr 11

SAN6:15 amSan Diego

7h 37m

1 stop

DLH3:52 pmDuluth Intl

$466

Fly from

Fly to

Route

Depart

Return

Price

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 3/19

3:07 pm-10:40 pm

1 stop9h 33m

San Diego

Tue 3/24

5:55 pm-10:43 am

2 stops14h 48m

$419

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 3/19

3:07 pm-10:40 pm

1 stop9h 33m

San Diego

Tue 3/24

11:03 am-9:54 pm

1 stop8h 51m

$438

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 2/5

3:05 pm-11:42 pm

2 stops10h 37m

San Diego

Mon 2/9

9:55 am-9:59 pm

2 stops10h 04m

$439

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 4/2

3:08 pm-10:59 pm

1 stop9h 51m

San Diego

Mon 4/6

8:39 pm-10:29 am

2 stops11h 50m

$464

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 3/19

12:37 pm-6:50 pm

2 stops8h 13m

San Diego

Tue 3/24

2:47 pm-10:47 pm

1 stop6h 00m

$472

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 3/19

4:32 pm-11:48 pm

2 stops9h 16m

San Diego

Tue 3/24

9:55 pm-11:56 am

2 stops12h 01m

$477

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Mon 3/16

4:32 pm-11:40 pm

1 stop9h 08m

San Diego

Mon 3/23

10:10 pm-11:56 am

2 stops11h 46m

$482

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 4/2

12:37 pm-10:59 pm

2 stops12h 22m

San Diego

Mon 4/6

10:10 pm-11:56 am

2 stops11h 46m

$487

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 3/19

3:07 pm-7:48 pm

3 stops30h 41m

San Diego

Tue 3/24

10:30 pm-2:32 pm

2 stops14h 02m

$497

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 3/19

4:32 pm-11:40 pm

1 stop9h 08m

San Diego

Tue 3/24

2:47 pm-10:47 pm

1 stop6h 00m

$502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

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

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

When to book flights from Duluth to San Diego

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

Estimated round-trip price

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

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

Fastest flight time	9h 28m
Direct flights	None

The fastest flight from Duluth to San Diego takes 9h 28m

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

Search flight deals

How far is Duluth Intl to San Diego by plane?
A flight from Duluth Intl to San Diego will travel around 1634.9 mi. Typically, this will take 9h 28m by plane in normal conditions.
When did momondo last update prices for flights from Duluth Intl Airport to San Diego Airport?
Prices for flights from Duluth Intl Airport to San Diego Airport refresh daily.
How many operators does momondo search for flights from Duluth Intl Airport to San Diego Airport?
The number of operators available for flights from Duluth Intl Airport to San Diego Airport is 1 as of January 2026.
How old do you have to be to fly from Duluth Intl Airport to San Diego 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 Duluth Intl Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Duluth to San Diego?
Based on momondo bookings for flights between Duluth and San Diego, the leading airline is Delta, making up 100% of the total bookings.

Best airlines flying from Duluth to San Diego

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $278	Free Cancellation	Rating 7.9 8,088 reviews		Search Delta flights

Coronado

Chula Vista

El Cajon

Julian

Poway

National City

Imperial Beach

San Ysidro

Borrego Springs

La Mesa

Alpine

Lemon Grove

Santee

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Duluth to San Diego. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from Duluth.

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

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