$267 Cheap United flights San Diego (SAN) to Duluth (DLH)

View $267 flight on Thu, Dec 4, 2025Opens in a new window

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$267 Cheap United flights San Diego (SAN) to Duluth (DLH)

Prices were available within the past 7 days and start at $267 for one-way flights and $284 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 15 - Fri, Oct 31
SAN
San Diego
DLH
Duluth
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 15 from San Diego to Duluth, returning Fri, Oct 31, priced at $284 found 1 day ago
United
Wed, Oct 15 - Fri, Oct 31
SAN
San Diego
DLH
Duluth
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 15 from San Diego to Duluth, returning Fri, Oct 31, priced at $309 found 1 day ago
United
Wed, Oct 15 - Fri, Oct 31
SAN
San Diego
DLH
Duluth
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 15 from San Diego to Duluth, returning Fri, Oct 31, priced at $314 found 1 day ago
United
Thu, Dec 4 - Tue, Dec 9
SAN
San Diego
DLH
Duluth
$319 Roundtrip, found 3 days ago
$319
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from San Diego to Duluth, returning Tue, Dec 9, priced at $319 found 3 days ago
United
Wed, Oct 15 - Fri, Oct 31
SAN
San Diego
DLH
Duluth
$328 Roundtrip, found 1 day ago
$328
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 15 from San Diego to Duluth, returning Fri, Oct 31, priced at $328 found 1 day ago
United
Wed, Oct 15 - Fri, Oct 31
SAN
San Diego
DLH
Duluth
$334 Roundtrip, found 1 day ago
$334
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 15 from San Diego to Duluth, returning Fri, Oct 31, priced at $334 found 1 day ago
Flights from San Diego (SAN) to Duluth (DLH)
Origin airport
San Diego Intl.
Destination airport
Duluth Intl.
Airlines serving
Delta, United
Popular airline
Delta
Distance
1635 mi

Frequently asked questions

How much is a United Airlines flight from San Diego Intl. Airport (SAN) to Duluth Intl. Airport (DLH)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $284 from SAN to DLH. Affordable one-way tickets from $267 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SAN to DLH with United Airlines?
United Airlines flights to Duluth are usually more affordable in the quieter months of January and February. Whether you're in search of a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from San Diego Intl. Airport (SAN) to Duluth Intl. Airport (DLH) with United Airlines?
Look for affordable United Airlines flights from San Diego Intl. Airport (SAN) to Duluth Intl. Airport (DLH) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from San Diego Intl. Airport (SAN) to Duluth Intl. Airport (DLH)?
Use the "Nonstop" filter when browsing for direct United Airlines flights from SAN to DLH. It's also a great way to compare other carriers servicing the same nonstop journey.
What is the earliest United Airlines flight from SAN to DLH?
To find the earliest departure from SAN to DLH with United Airlines, filter your search by "Morning" and "Early Morning." Booking an early flight generally means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Duluth?
Duluth Intl. Airport (DLH) is the main Duluth gateway for United Airlines flights from San Diego Intl. Airport (SAN).
Why fly with United Airlines from SAN to DLH?
A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to leave from SAN to DLH with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* alongside United Airlines's loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from San Diego Intl. Airport (SAN) to Duluth Intl. Airport (DLH)?
Changes are usually free within 24 hours of booking, but your airline may charge you after that. For more information about modifying your flights, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your plans without extra charges, check the "Changes included" or "No cancel fee" filter when organizing your next adventure.

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