$398+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DLH
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
Cheapest flights from San Antonio to DuluthExplore 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 August 26, 2026.
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 August 26, 2026.
This Delta deal was found by Cheapflights users on 8/22. 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.
Sun 9/66:30 am -
1 stop4h 31m
Thu 9/105:15 am -
1 stop6h 24m
Deal found 8/22![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/106:30 am -
1 stop7h 59m
Thu 10/156:00 am -
1 stop6h 11m
Deal found 8/25![United Airlines logo]()
$636
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/115:30 pm -
1 stop5h 50m
Sun 9/133:10 pm -
1 stop7h 41m
Deal found 8/24![United Airlines logo]()
$659
This Delta deal was found by Cheapflights users on 8/25. 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.
Sun 12/206:00 am -
1 stop5h 28m
Sat 12/265:14 pm -
1 stop5h 38m
Deal found 8/25![Delta logo]()
$663
This United Airlines deal was found by Cheapflights users on 8/25. 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 12/175:39 pm -
1 stop5h 49m
Mon 12/217:00 am -
2 stops11h 09m
Deal found 8/25![United Airlines logo]()
$725
This United Airlines deal was found by Cheapflights users on 8/25. 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 12/175:39 pm -
1 stop5h 49m
Tue 12/227:00 am -
2 stops8h 37m
Deal found 8/25![United Airlines logo]()
$763
Best flights from San Antonio to DuluthDiscover carefully curated flight deals from San Antonio to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from San Antonio to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This Delta deal was found by Cheapflights users on 8/22. 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.
Sun 9/66:30 am -
1 stop4h 31m
Thu 9/105:15 am -
1 stop6h 24m
Deal found 8/22![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/23. 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 1/305:22 pm -
1 stop5h 42m
Wed 2/33:14 pm -
1 stop7h 44m
Deal found 8/23![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/1012:05 pm -
2 stops11h 15m
Thu 10/156:00 am -
1 stop6h 11m
Deal found 8/25![United Airlines logo]()
$641
Last-minute flights from San Antonio to DuluthDiscover last-minute flight deals from San Antonio to Duluth. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Duluth. Data last updated August 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/22. 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.
Sun 9/66:30 am -
1 stop4h 31m
Thu 9/105:15 am -
1 stop6h 24m
Deal found 8/22![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/106:30 am -
1 stop7h 59m
Thu 10/156:00 am -
1 stop6h 11m
Deal found 8/25![United Airlines logo]()
$636
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/115:30 pm -
1 stop5h 50m
Sun 9/133:10 pm -
1 stop7h 41m
Deal found 8/24![United Airlines logo]()
$659
Find 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 August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $398 (Delta) |
Popular in | December |
Cheapest in | September |
Average price | $399 |
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 7,457,451 searches. Data last updated August 26, 2026.
Use the filters below to find and compare flights from San Antonio to Duluth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Sun 9/6
6:30 am-11:01 am
1 stop4h 31m
Duluth Intl
Thu 9/10
5:15 am-11:39 am
1 stop6h 24m
$398
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Sat 1/30
5:22 pm-11:04 pm
1 stop5h 42m
Duluth Intl
Wed 2/3
3:14 pm-10:58 pm
1 stop7h 44m
$418
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Thu 9/10
12:05 pm-11:20 pm
2 stops11h 15m
Duluth Intl
Thu 10/15
6:00 am-12:11 pm
1 stop6h 11m
$641
Sorted by cheapest first
Compare providers for flights from San Antonio 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 Antonio to Duluth in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Duluth flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-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 Antonio-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 Antonio to Duluth
Have a flexible travel schedule? Discover the best time to fly to Duluth from San Antonio with our price prediction graph.
SAT-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.
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 August 26, 2026.
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.
Overall
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Overall
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
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 Antonio 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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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 7,457,451 searches. Data last updated August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$468 | FlexibilityNo cancel fee | On-timeN/A |