SAN - DLH

$243 Find Cheap Flights from San Diego to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Duluth departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Duluth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Duluth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Duluth, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$419
Overall average: $488
United Airlines
Tue 2/3Sat 2/7
SAN - DLH • 1 stop
Cheapest one-way
$243
Delta
Tue 2/10
SAN - DLH • 2 stops
When to travel
March
Cheapest • 37% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Duluth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Duluth (SAN-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Duluth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Duluth

Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
10:52 am - 9:59 pm
SAN
-
DLH
9h 07m
1 stop
United Airlines Logo
3:05 pm - 12:15 am
DLH
-
SAN
11h 10m
2 stops
$419United Airlines
Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
9:55 am - 9:59 pm
SAN
-
DLH
10h 04m
2 stops
United Airlines Logo
3:05 pm - 12:15 am
DLH
-
SAN
11h 10m
2 stops
$424United Airlines
Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
10:52 am - 9:59 pm
SAN
-
DLH
9h 07m
1 stop
United Airlines Logo
3:05 pm - 9:40 am
DLH
-
SAN
20h 35m
1 stop
$512United Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Duluth flights

Get data-powered insights and trends into flights from San Diego to Duluth to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Diego to Duluth?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Duluth, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Duluth is March, where tickets cost $278 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $692 and $593 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flight$243
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from San Diego to Duluth

When to book flights from San Diego to Duluth

Are your dates flexible? Find out the best times to travel from San Diego to Duluth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Duluth

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

    In the last 3 days, the lowest price for a flight from San Diego to Duluth was $243 for a one-way ticket and $419 for a round-trip.

  • Do I need a passport to fly between San Diego and Duluth?

    A passport is not required to fly from San Diego to Duluth.

  • Which aircraft models fly most regularly from San Diego to Duluth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Duluth?

    SkyTeam is the only airline alliance operating flights between San Diego and Duluth.

  • How does KAYAK find such low prices on flights from San Diego to Duluth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Duluth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Duluth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Duluth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Duluth with an airline and back to San Diego with another airline. Booking your flights between San Diego and DLH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Duluth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Duluth from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Diego to Duluth

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Duluth. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Duluth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8066 reviews
7.2Food
7.8Entertainment
7.9Comfort
8.5Crew
8.1Boarding
Airline reviews

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

10.0 ExcellentEric, Jan 2026
SFO - ATL
Read more Delta reviews

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Good seats in Main cabin, excellent service and excellent landing

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

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

Information on your arrival and departure airports

San Diego (SAN)
Duluth (DLH)