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$334+ Cheap flights from San Diego to Duluth (SAN - DLH)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DLH
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheap flight deals from San Diego to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Duluth (DLH). 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$334
(Delta)

Popular in

December

Cheapest in

March

Average price

$278
Provider with most accurate pricing for San Diego-Duluth Intl flight deals.
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Provider most trusted by Cheapflights users for San Diego-Duluth Intl flights.
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From San Diego to Duluth Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from San Diego to Duluth

Cheapest flights from San Diego to Duluth
Explore the most affordable flight options available from San Diego to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This Delta deal was found by Cheapflights users on 3/24. 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.
Tue 4/810:00 pmSAN - DLH
2 stops10h 12mDelta
Sat 4/125:10 amDLH - SAN
1 stop7h 37mDelta
Deal found 3/24$334
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Tue 9/98:37 pmSAN - DLH
2 stops12h 07mUnited Airlines
Sun 9/1411:26 amDLH - SAN
2 stops14h 18mUnited Airlines
Deal found 3/24$592

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2025.
Use the filters below to find and compare flights from San Diego to Duluth that are best for you.

Fly from

San Diego

Fly to

Duluth

Route

Depart

Return

Price

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Tue 4/8

10:00 pm-10:12 am

2 stops10h 12m

Duluth Intl

Sat 4/12

5:10 am-10:47 am

1 stop7h 37m

$334

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Tue 9/9

8:37 pm-10:44 am

2 stops12h 07m

Duluth Intl

Sun 9/14

11:26 am-11:44 pm

2 stops14h 18m

$592

San DiegoDuluth

SAN - DLH

SANDLH

San Diego

Fri 5/2

10:00 am-2:25 pm

2 stops26h 25m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from San Diego to Duluth

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 San Diego to Duluth in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
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 San Diego-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Duluth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Duluth flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Diego-Duluth 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 San Diego to Duluth

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

Cheapflights Insights

Everything you need to know about your flight from San Diego to Duluth

What is the cheapest month to book a flight from San Diego to Duluth?

Currently, January is the cheapest month in which you can book a flight from San Diego to Duluth (average of $335). Flying from San Diego to Duluth in June is currently the most expensive (average of $483). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to DLH?

Find hourly flight availability from San Diego to Duluth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

It’s typically best to fly out from San Diego to Duluth at noon. Doing so could potentially save you 27% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Duluth by month

Plan your trip to Duluth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Duluth ranges from 0.6 - 3.6 inches per month. August is typically the wettest month, when rainfall can reach 3.6 in. February is typically the driest time to visit Duluth when rainfall is around 0.6 in.

Temperature in Duluth by month

Plan your trip to Duluth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Duluth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. 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 Duluth. Reviews last updated March 25, 2025.
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from San Diego to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Diego to Duluth round-trip?

    Flying on Delta is currently your cheapest option to Duluth, with prices starting at $334. Another option worth looking into is United Airlines, starting at $592 round trip. Delta is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from San Diego to Duluth?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Duluth (average of $335). Flying from San Diego to Duluth in June is currently the most expensive (average of $483). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Two Harbors
Superior

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Top 2 airlines flying from San Diego to Duluth

Discover the top 2 airlines that operate flights from San Diego to Duluth. 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$444FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$373Average$508FlexibilityNo cancel feeOn-time69%
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