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$324+ Cheap flights from San Antonio to Duluth (SAT - 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DLH
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from San Antonio to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 September 11, 2025.

Round-trip from

$324
(Delta)
From San Antonio to Duluth Intl
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Find flight deals from San Antonio to Duluth

Cheapest flights from San Antonio to Duluth
Explore the most affordable flight options available from San Antonio to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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 9/2712:15 pmSAT - DLH
2 stops10h 28mDelta
Wed 10/15:10 amDLH - SAT
2 stops10h 26mDelta
Deal found 9/9$324
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/271:05 pmSAT - DLH
1 stop5h 32mUnited Airlines
Wed 10/18:00 amDLH - SAT
1 stop7h 58mUnited Airlines
Deal found 9/8$363
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/2511:45 amSAT - DLH
2 stops10h 23mUnited Airlines
Mon 9/299:45 amDLH - SAT
2 stops9h 45mUnited Airlines
Deal found 9/10$374
This Delta deal was found by Cheapflights users on 9/10. 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 9/251:35 pmSAT - DLH
1 stop5h 38mDelta
Mon 9/294:20 pmDLH - SAT
1 stop5h 10mDelta
Deal found 9/10$423
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/912:57 pmSAT - DLH
1 stop5h 33mUnited Airlines
Sat 9/139:45 amDLH - SAT
2 stops10h 07mUnited Airlines
Deal found 9/9$434

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio 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 September 11, 2025.
Use the filters below to find and compare flights from San Antonio to Duluth that are best for you.

Fly from

San Antonio

Fly to

Duluth

Route

Depart

Return

Price

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Sat 9/27

12:15 pm-10:43 pm

2 stops10h 28m

Duluth Intl

Wed 10/1

5:10 am-3:36 pm

2 stops10h 26m

$324

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Sat 9/27

1:05 pm-6:37 pm

1 stop5h 32m

Duluth Intl

Wed 10/1

8:00 am-3:58 pm

1 stop7h 58m

$363

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Thu 9/25

11:45 am-10:08 pm

2 stops10h 23m

Duluth Intl

Mon 9/29

9:45 am-7:30 pm

2 stops9h 45m

$374

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Thu 9/25

1:35 pm-7:13 pm

1 stop5h 38m

Duluth Intl

Mon 9/29

4:20 pm-9:30 pm

1 stop5h 10m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from San Antonio to Duluth

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

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

Find hourly flight availability from San Antonio 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 September 11, 2025.

It’s typically best to fly out from San Antonio to Duluth in the afternoon. Doing so could potentially save you 5% on the flight price compared to flying in the morning, which is usually more expensive.

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 September 11, 2025.
Read through reviews of airlines operating flights from San Antonio to Duluth, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up

Related info for your journey

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

  • How long is the flight from San Antonio to Duluth?

    Delta and United Airlines can get you from San Antonio to Duluth in just under 5h 32m. Your travel time can differ by up to 4h 56m. San Antonio and Duluth are separated by a distance of 1242 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from San Antonio to Duluth round-trip?

    Delta, at $258, was found to be the cheapest airline from San Antonio to Duluth..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio 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 Antonio to Duluth?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Duluth (average of $339). Flying from San Antonio to Duluth in June is currently the most expensive (average of $477). 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 Duluth?

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

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Top airline flying from San Antonio to Duluth

Discover the top airline that operate flights from San Antonio 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$518FlexibilityNo cancel feeOn-timeN/A

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