$374+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DLH
Nov 5 — Nov 121
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Duluth 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.Cheap flight deals from San Diego to Duluth
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Best
Last-minute
One-way
Cheapest flights from San Diego to DuluthExplore 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 October 6, 2026.
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 October 6, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Wed 10/286:26 pm -
2 stops14h 13m
Sat 10/313:06 pm -
1 stop9h 34m
Deal found 10/1![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 10/1. 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.
Wed 10/2810:25 pm -
2 stops11h 19m
Sat 10/3112:35 pm -
2 stops11h 27m
Deal found 10/1![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 10/3. 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.
Wed 10/213:30 pm -
1 stop5h 27m
Sat 10/244:21 pm -
1 stop5h 51m
Deal found 10/3![Delta logo]()
$456
This Delta deal was found by Cheapflights users on 10/5. 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 11/56:25 am -
1 stop7h 16m
Sun 11/84:21 pm -
1 stop5h 51m
Deal found 10/5![Delta logo]()
$483
This United Airlines deal was found by Cheapflights users on 10/2. 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 11/57:41 pm -
2 stops13h 00m
Sun 11/83:06 pm -
1 stop9h 34m
Deal found 10/2![United Airlines logo]()
$529
This Delta deal was found by Cheapflights users on 10/1. 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 10/910:25 pm -
2 stops11h 19m
Fri 10/165:14 am -
2 stops9h 11m
Deal found 10/1![Delta logo]()
$591
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/97:41 pm -
2 stops13h 01m
Fri 10/163:10 pm -
1 stop9h 31m
Deal found 9/30![United Airlines logo]()
$609
Best flights from San Diego to DuluthDiscover carefully curated flight deals from San Diego to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
Discover carefully curated flight deals from San Diego to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
This Delta deal was found by Cheapflights users on 10/3. 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.
Wed 10/213:30 pm -
1 stop5h 27m
Sat 10/244:21 pm -
1 stop5h 51m
Deal found 10/3![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Sat 1/306:50 am -
1 stop9h 41m
Wed 2/35:50 am -
1 stop7h 31m
Deal found 10/4![United Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 10/4. 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.
Sat 2/136:20 am -
1 stop7h 24m
Thu 2/1812:00 pm -
2 stops8h 55m
Deal found 10/4![Delta logo]()
$489
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Sat 2/132:09 pm -
1 stop6h 55m
Thu 2/182:59 pm -
1 stop9h 32m
Deal found 10/5![United Airlines logo]()
$523
Last-minute flights from San Diego to DuluthDiscover last-minute flight deals from San Diego to Duluth. Data last updated October 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Duluth. Data last updated October 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/1. 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 10/910:25 pm -
2 stops11h 19m
Fri 10/165:14 am -
2 stops9h 11m
Deal found 10/1![Delta logo]()
$591
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/97:41 pm -
2 stops13h 01m
Fri 10/163:10 pm -
1 stop9h 31m
Deal found 9/30![United Airlines logo]()
$609
This Delta deal was found by Cheapflights users on 10/3. 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.
Wed 10/213:30 pm -
1 stop5h 27m
Sat 10/244:21 pm -
1 stop5h 51m
Deal found 10/3![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Wed 10/286:26 pm -
2 stops14h 13m
Sat 10/313:06 pm -
1 stop9h 34m
Deal found 10/1![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 10/1. 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.
Wed 10/2810:25 pm -
2 stops11h 19m
Sat 10/3112:35 pm -
2 stops11h 27m
Deal found 10/1![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 10/5. 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 11/56:25 am -
1 stop7h 16m
Sun 11/84:21 pm -
1 stop5h 51m
Deal found 10/5![Delta logo]()
$483
This United Airlines deal was found by Cheapflights users on 10/2. 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 11/57:41 pm -
2 stops13h 00m
Sun 11/83:06 pm -
1 stop9h 34m
Deal found 10/2![United Airlines logo]()
$529
One-way flights from San Diego to DuluthSearch for one-way flight options from San Diego to Duluth. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
Search for one-way flight options from San Diego to Duluth. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sun 10/112:07 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Sat 10/106:40 am -
1 stop9h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![United Airlines logo]()
$603
Find 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 October 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $374 (United Airlines) |
Popular in | March |
Cheapest in | November |
Average price | $368 |
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 7,457,451 searches. Data last updated October 6, 2026.
Use the filters below to find and compare flights from San Diego to Duluth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoDuluth
SAN San Diego - DLH Duluth Intl
SANDLH
San Diego
Wed 10/21
3:30 pm-10:57 pm
1 stop5h 27m
Duluth Intl
Sat 10/24
4:21 pm-8:12 pm
1 stop5h 51m
$456
San DiegoDuluth
SAN San Diego - DLH Duluth Intl
SANDLH
San Diego
Sat 1/30
6:50 am-6:31 pm
1 stop9h 41m
Duluth Intl
Wed 2/3
5:50 am-11:21 am
1 stop7h 31m
$488
San DiegoDuluth
SAN San Diego - DLH Duluth Intl
SANDLH
San Diego
Sat 2/13
6:20 am-3:44 pm
1 stop7h 24m
Duluth Intl
Thu 2/18
12:00 pm-6:55 pm
2 stops8h 55m
$489
San DiegoDuluth
SAN San Diego - DLH Duluth Intl
SANDLH
San Diego
Sat 2/13
2:09 pm-11:04 pm
1 stop6h 55m
Duluth Intl
Thu 2/18
2:59 pm-10:31 pm
1 stop9h 32m
$523
Quickest round-trip
San DiegoDuluth
SAN San Diego - DLH Duluth Intl
SANDLH
San Diego
Sun 10/11
2:07 pm-11:22 pm
1 stop7h 15m
Duluth Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$533
San DiegoDuluth
SAN San Diego - DLH Duluth Intl
SANDLH
San Diego
Sat 10/10
6:40 am-6:19 pm
1 stop9h 39m
Duluth Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$533
Sorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
SAN-DLH
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
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 October 6, 2026.
See what other customers who have flown with Delta and United Airlines from San Diego to Duluth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
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.
Traveling to a place near Duluth?
Book flights to Duluth if you plan to visit one of these locationsTwo Harbors
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$478 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$389 | FlexibilityNo cancel fee | On-time69% |