$357+ Cheap flights from San Antonio to Duluth (SAT - DLH)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DLH
Sep 5 — Sep 121
Round-trip
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
Cheapest
Best
Last-minute
One-way
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 6, 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 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/206:30 am -
1 stop7h 59m
Thu 8/277:45 am -
1 stop8h 46m
Deal found 8/2![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/212:15 pm -
2 stops9h 07m
Thu 8/277:45 am -
1 stop8h 46m
Deal found 8/2![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 9/15:27 pm -
1 stop5h 55m
Sat 9/53:11 pm -
1 stop7h 40m
Deal found 8/1![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/206:30 am -
1 stop7h 59m
Tue 8/2511:18 am -
2 stops9h 58m
Deal found 8/2![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/145:27 pm -
1 stop5h 55m
Sat 8/2211:18 am -
2 stops11h 21m
Deal found 8/2![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 8/3. 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 9/22:22 pm -
1 stop5h 22m
Tue 9/811:43 am -
2 stops12h 25m
Deal found 8/3![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/2012:00 pm -
2 stops11h 22m
Wed 8/2611:18 am -
2 stops11h 21m
Deal found 8/2![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 8/2. 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.
Fri 8/146:04 pm -
1 stop4h 37m
Sat 8/224:11 pm -
1 stop5h 18m
Deal found 8/2![Delta logo]()
$477
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 6, 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 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/205:27 pm -
1 stop5h 55m
Wed 8/263:11 pm -
1 stop7h 39m
Deal found 8/2![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/205:27 pm -
1 stop5h 55m
Thu 8/277:45 am -
2 stops7h 58m
Deal found 8/2![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 9/15:30 am -
2 stops12h 04m
Sat 9/53:11 pm -
1 stop7h 40m
Deal found 8/1![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 8/195:27 pm -
1 stop5h 55m
Sun 8/237:45 am -
1 stop8h 46m
Deal found 8/4![United Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:00 pm -
2 stops11h 22m
Tue 9/86:24 pm -
2 stops29h 33m
Deal found 8/3![United Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 8/4. 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 11/76:40 am -
1 stop7h 50m
Wed 11/117:00 am -
2 stops11h 03m
Deal found 8/4![United Airlines logo]()
$572
Last-minute flights from San Antonio to DuluthDiscover last-minute flight deals from San Antonio to Duluth. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Duluth. Data last updated August 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/145:27 pm -
1 stop5h 55m
Sat 8/2211:18 am -
2 stops11h 21m
Deal found 8/2![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 8/2. 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.
Fri 8/146:04 pm -
1 stop4h 37m
Sat 8/224:11 pm -
1 stop5h 18m
Deal found 8/2![Delta logo]()
$477
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/206:30 am -
1 stop7h 59m
Thu 8/277:45 am -
1 stop8h 46m
Deal found 8/2![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/206:30 am -
1 stop7h 59m
Tue 8/2511:18 am -
2 stops9h 58m
Deal found 8/2![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/2012:00 pm -
2 stops11h 22m
Wed 8/2611:18 am -
2 stops11h 21m
Deal found 8/2![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/212:15 pm -
2 stops9h 07m
Thu 8/277:45 am -
1 stop8h 46m
Deal found 8/2![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 9/15:27 pm -
1 stop5h 55m
Sat 9/53:11 pm -
1 stop7h 40m
Deal found 8/1![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 8/3. 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 9/22:22 pm -
1 stop5h 22m
Tue 9/811:43 am -
2 stops12h 25m
Deal found 8/3![Delta logo]()
$449
One-way flights from San Antonio to DuluthSearch for one-way flight options from San Antonio to Duluth. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
Search for one-way flight options from San Antonio to Duluth. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/226:30 am -
1 stop4h 31m
Deal found 8/1![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Sat 8/225:30 am -
2 stops8h 59m
Deal found 8/1![United Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/216:30 am -
1 stop7h 59m
Deal found 8/2![United Airlines logo]()
$423
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (United Airlines) |
One-way from | $357 (Delta) |
Popular in | August |
Cheapest in | September |
Average price | $1,449 |
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 August 6, 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
Thu 8/20
5:27 pm-11:22 pm
1 stop5h 55m
Duluth Intl
Wed 8/26
3:11 pm-10:50 pm
1 stop7h 39m
$363
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Thu 8/20
5:27 pm-11:22 pm
1 stop5h 55m
Duluth Intl
Thu 8/27
7:45 am-3:43 pm
2 stops7h 58m
$404
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Tue 9/1
5:30 am-5:34 pm
2 stops12h 04m
Duluth Intl
Sat 9/5
3:11 pm-10:51 pm
1 stop7h 40m
$424
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Wed 8/19
5:27 pm-11:22 pm
1 stop5h 55m
Duluth Intl
Sun 8/23
7:45 am-4:31 pm
1 stop8h 46m
$488
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Wed 9/2
12:00 pm-11:22 pm
2 stops11h 22m
Duluth Intl
Tue 9/8
6:24 pm-11:57 pm
2 stops29h 33m
$537
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Sat 11/7
6:40 am-2:30 pm
1 stop7h 50m
Duluth Intl
Wed 11/11
7:00 am-6:03 pm
2 stops11h 03m
$572
Cheapest one-way
Quickest one-way
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Sat 8/22
6:30 am-11:01 am
1 stop4h 31m
$357
San AntonioDuluth
SAT San Antonio - DLH Duluth Intl
SATDLH
San Antonio
Fri 8/21
6:30 am-2:29 pm
1 stop7h 59m
$423
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 6, 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.
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
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
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
Complete your trip
Duluth flight routes
Flights by cabin class
Other flight options
Other flights from San Antonio
Popular flights
Alternative routes for San Antonio to Duluth
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Duluth by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Duluth
Explore flights to Duluth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 6, 2026.
Search flights from San Antonio to Duluth by cabin class
Find flights from San Antonio to Duluth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Antonio and Duluth flights
Browse other San Antonio and Duluth flight options. Last updated on August 6, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on August 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$469 | FlexibilityNo cancel fee | On-timeN/A |