SAN - DLH

$456 Find Cheap Flights from San Diego to Duluth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Duluth departing on 3/3. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$456
Overall average: $1,873
United Airlines
Tue 3/3Sat 3/7
SAN - DLH • 2 stops
Cheapest one-way
$477
United Airlines
Wed 2/25
SAN - DLH • 2 stops
Top airlines
United Airlines
Cheapest • from $456 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 52% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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, Mar 3 - Sat, Mar 7
United Airlines Logo
7:50 pm - 10:43 am
SAN
-
DLH
12h 53m
2 stops
United Airlines Logo
3:07 pm - 10:40 pm
DLH
-
SAN
9h 33m
1 stop
$456United Airlines
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
9:00 am - 9:59 pm
SAN
-
DLH
10h 59m
2 stops
United Airlines Logo
11:20 am - 9:03 pm
DLH
-
SAN
11h 43m
2 stops
$484United Airlines
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
2:10 pm - 10:43 am
SAN
-
DLH
18h 33m
1 stop
United Airlines Logo
3:07 pm - 10:40 pm
DLH
-
SAN
9h 33m
1 stop
$621United Airlines
Thu, Jun 18 - Sun, Jun 21
United Airlines Logo
10:40 pm - 5:34 pm
SAN
-
DLH
16h 54m
1 stop
United Airlines Logo
5:00 am - 10:34 pm
DLH
-
SAN
19h 34m
1 stop
$828United Airlines
Thu, Jun 18 - Sun, Jun 21
United Airlines Logo
10:40 pm - 5:34 pm
SAN
-
DLH
16h 54m
1 stop
United Airlines Logo
6:10 pm - 9:05 am
DLH
-
SAN
16h 55m
2 stops
$845United Airlines
Thu, Jun 18 - Sun, Jun 21
Delta Logo
10:30 pm - 10:57 am
SAN
-
DLH
10h 27m
2 stops
Delta Logo
5:10 am - 12:33 pm
DLH
-
SAN
9h 23m
2 stops
$1,319Delta
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 November, where tickets cost $278 (return) on average. On the other hand, the most expensive months are March and August, where the average cost of round-trip tickets is $1,873 and $782 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$456
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 30% 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 $477 for a one-way ticket and $456 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 8212 reviews
8.5Crew
8.1Boarding
7.2Food
7.9Comfort
7.8Entertainment
Airline reviews

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

10.0 ExcellentGrace, Feb 2026
LAX - JFK
Read more Delta reviews

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

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!!!!

Good seats in Main cabin, excellent service and excellent landing

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

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)