HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$289+ Cheap flights from Duluth to San Diego (DLH - SAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — SAN
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Duluth to San Diego 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.

Find flight deals from Duluth to San Diego

Cheapest flights from Duluth to San Diego
Explore the most affordable flight options available from Duluth to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 11/214:18 pmDLH - SAN
1 stop6h 24mDelta
Sun 11/236:30 amSAN - DLH
1 stop7h 08mDelta
Deal found 11/9$393
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 11/276:50 amDLH - SAN
1 stop6h 32mDelta
Mon 12/16:30 amSAN - DLH
1 stop7h 08mDelta
Deal found 11/12$593
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/2111:14 amDLH - SAN
1 stop9h 36mUnited Airlines
Sun 11/2312:43 pmSAN - DLH
3 stops19h 55mUnited Airlines
Deal found 11/9$618
This United Airlines deal was found by Cheapflights users on 11/12. 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 11/2711:14 amDLH - SAN
2 stops11h 19mUnited Airlines
Mon 12/18:40 pmSAN - DLH
2 stops15h 42mUnited Airlines
Deal found 11/12$730

Cheap flight deals from Duluth to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to San Diego (SAN). 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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$278
(Delta)

Popular in

May

Cheapest in

February

Average price

$338
Provider with most accurate pricing for Duluth Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Duluth Intl-San Diego flights.
Search Deals
From Duluth Intl to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duluth to San Diego 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 November 12, 2025.
Use the filters below to find and compare flights from Duluth to San Diego that are best for you.

Fly from

Duluth

Fly to

San Diego

Route

Depart

Return

Price

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Wed 1/14

11:56 am-10:33 pm

2 stops12h 37m

San Diego

Sun 1/18

10:00 pm-11:16 am

2 stops11h 16m

$289

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Wed 1/28

5:00 am-2:29 pm

2 stops11h 29m

San Diego

Sat 1/31

10:30 pm-11:16 am

2 stops10h 46m

$289

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Fri 11/21

4:18 pm-8:42 pm

1 stop6h 24m

San Diego

Sun 11/23

6:30 am-3:38 pm

1 stop7h 08m

$393

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Thu 11/27

6:50 am-11:22 am

1 stop6h 32m

San Diego

Mon 12/1

6:30 am-3:38 pm

1 stop7h 08m

$593

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Mon 1/12

3:05 pm-3:04 pm

2 stops25h 59m

San Diego

Thu 1/15

7:00 am-2:30 pm

1 stop29h 30m

$598

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Sun 12/28

4:10 pm-9:03 pm

1 stop6h 53m

$564

DuluthSan Diego

DLH - SAN

DLHSAN

Duluth Intl

Sun 12/28

7:50 am-12:15 am

2 stops42h 25m

$770

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Compare providers for flights from Duluth to San Diego

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 Duluth to San Diego in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Duluth-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Duluth-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Duluth-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Duluth-San Diego flights, Cheapflights users trust eDreams the most. eDreams 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 Duluth-San Diego 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 Duluth to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Duluth 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.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated November 12, 2025.
Read through reviews of airlines operating flights from Duluth to San Diego, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,009 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,009 reviews
Delta
7.9
Good
8,009 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Duluth to San Diego. 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 Duluth to San Diego?

    Delta can get you from Duluth to San Diego in just under 12h 37m. Your travel time can differ by up to . The distance from Duluth to San Diego is about 1634 mi.

  • What is the cheapest airline to fly from Duluth to San Diego round-trip?

    Cheapflights users have booked flights from Duluth to San Diego round-trip from $278. Users have found that Delta is 38% cheaper than the other options available to this destination.

  • Can I find deals for flights from Duluth to San Diego that include hotel bookings?

    Yes. In addition to deals on Duluth to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Duluth to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Duluth to San Diego.

  • Can I find deals for business class flights from Duluth to San Diego?

    Yes. Cheapflights offers flight deals from Duluth to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

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 Duluth to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Minneapolis to Las Vegas flights
Minneapolis to Los Angeles flights
Minneapolis to San Diego flights
Minneapolis to San Francisco flights
Minneapolis to Ontario flights
Minneapolis to Palm Springs flights
Minneapolis to Santa Ana flights
Minneapolis to Sacramento flights
Minneapolis to San Jose flights
Sioux Falls to Las Vegas flights
Fargo to Las Vegas flights
Minneapolis to Reno flights
Minneapolis to Burbank flights
Minneapolis to Oakland flights
Minneapolis to Fresno flights
Minneapolis to Long Beach flights
Rochester to Las Vegas flights
Sioux Falls to San Diego flights
Fargo to Los Angeles flights
Sioux Falls to Los Angeles flights
Duluth to Las Vegas flights
Sioux Falls to San Francisco flights
Minneapolis to Santa Barbara flights
Sioux Falls to Reno flights
Fargo to San Diego flights
Sioux Falls to Ontario flights
Minneapolis to San Luis Obispo flights
Fargo to Palm Springs flights
Fargo to Sacramento flights
Sioux Falls to Santa Ana flights
Sioux Falls to Palm Springs flights
Fargo to San Francisco flights
Fargo to Ontario flights
Fargo to Reno flights
Minneapolis to Medford flights
Minneapolis to Monterey flights
Rochester to Sacramento flights
Duluth to San Francisco flights
Rochester to San Diego flights
Sioux Falls to San Jose flights
Sioux Falls to Sacramento flights
Fargo to Santa Ana flights
La Crosse to Las Vegas flights
Mason City to Los Angeles flights
Duluth to San Jose flights
Minneapolis to Santa Rosa flights
Duluth to Los Angeles flights
Fargo to Fresno flights
Fargo to San Luis Obispo flights
Sioux Falls to Oakland flights

Top airline flying from Duluth to San Diego

Discover the top airline that operate flights from Duluth to San Diego. 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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$381FlexibilityNo cancel feeOn-timeN/A

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.