HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duluth

$289+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DLH
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio 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 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 July 3, 2025.

Round-trip from

$289
(Delta)

Popular in

January

Cheapest in

March

Average price

$408
From San Antonio to Duluth Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2612:41 pmSAT - DLH
2 stops10h 05mDelta
Sat 8/305:10 amDLH - SAT
1 stop6h 41mDelta
Deal found 7/2$289
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Fri 9/197:15 pmSAT - DLH
2 stops26h 50mUnited Airlines
Mon 9/229:45 amDLH - SAT
1 stop6h 33mUnited Airlines
Deal found 7/2$496

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 July 3, 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

Tue 8/26

12:41 pm-10:46 pm

2 stops10h 05m

Duluth Intl

Sat 8/30

5:10 am-11:51 am

1 stop6h 41m

$289

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Fri 9/19

7:15 pm-10:05 pm

2 stops26h 50m

Duluth Intl

Mon 9/22

9:45 am-4:18 pm

1 stop6h 33m

$496

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Sun 11/2

5:30 am-10:03 am

1 stop4h 33m

$314

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Sun 11/2

7:40 am-9:59 pm

3 stops14h 19m

$1,318

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 July 3, 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 July 3, 2025.
Read through reviews of airlines operating flights from San Antonio to Duluth, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
United Airlines
7.4
Good
8,845 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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.

  • What are the cheapest airlines flying from San Antonio to Duluth round-trip?

    Delta, at $289, was found to be the cheapest airline from San Antonio to Duluth. An alternate airline flying to your destination would be United Airlines. Delta is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • 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 $335). Flying from San Antonio to Duluth in June is currently the most expensive (average of $475). 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 San Antonio?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Duluth

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Minneapolis flights
Hobby to Minneapolis flights
George Bush Intcntl to Minneapolis flights
Austin to Minneapolis flights
Love Field to Minneapolis flights
Dallas/Fort Worth to Sioux Falls flights
Hobby to Sioux Falls flights
San Antonio to Minneapolis flights
Dallas/Fort Worth to Fargo flights
George Bush Intcntl to Sioux Falls flights
Hobby to Fargo flights
Dallas/Fort Worth to Rochester flights
George Bush Intcntl to Fargo flights
Austin to Fargo flights
Corpus Christi to Minneapolis flights
Dallas/Fort Worth to Duluth flights
Hobby to Rochester flights
Hobby to Duluth flights
Austin to Sioux Falls flights
San Antonio to Rochester flights
Harlingen to Minneapolis flights
El Paso to Minneapolis flights
George Bush Intcntl to Rochester flights
George Bush Intcntl to Duluth flights
San Antonio to Fargo flights
Dallas/Fort Worth to La Crosse flights
Love Field to Sioux Falls flights
McAllen to Minneapolis flights
San Antonio to Sioux Falls flights
Austin to Rochester flights
Austin to Duluth flights
Lubbock to Minneapolis flights
Hobby to Brainerd flights
George Bush Intcntl to Brainerd flights
Amarillo to Minneapolis flights
Killeen to Fargo flights
College Station to Minneapolis flights
Hobby to La Crosse flights
Love Field to Rochester flights
Dallas/Fort Worth to Bemidji flights
George Bush Intcntl to La Crosse flights
Brownsville to Minneapolis flights
Laredo to Minneapolis flights
Waco to Sioux Falls flights
McAllen to Fargo flights
Wichita Falls to Sioux Falls flights
Love Field to Duluth flights
Love Field to Fargo flights
Killeen to Minneapolis flights

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$408FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.