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Cheap flights from San Antonio to Duluth from $313

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Duluth departing on 7/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Antonio to Duluth

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:50 pm - 11:38 pm
SAT
-
DLH
5h 48m
1 stop
Delta Logo
5:10 am - 12:05 pm
DLH
-
SAT
6h 55m
1 stop
$318Delta
Mon, Jul 27 - Sat, Aug 1
Delta Logo
5:50 pm - 11:38 pm
SAT
-
DLH
5h 48m
1 stop
Delta Logo
5:10 am - 12:05 pm
DLH
-
SAT
6h 55m
1 stop
$338Delta
Mon, Jul 27 - Sat, Aug 1
United Airlines Logo
6:49 am - 2:27 pm
SAT
-
DLH
7h 38m
1 stop
United Airlines Logo
11:19 am - 7:00 pm
DLH
-
SAT
7h 41m
1 stop
$418United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
6:49 am - 2:27 pm
SAT
-
DLH
7h 38m
1 stop
United Airlines Logo
11:19 am - 7:00 pm
DLH
-
SAT
7h 41m
1 stop
$423United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
6:49 am - 2:27 pm
SAT
-
DLH
7h 38m
1 stop
United Airlines Logo
11:19 am - 9:03 pm
DLH
-
SAT
9h 44m
2 stops
$424United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
6:49 am - 2:27 pm
SAT
-
DLH
7h 38m
1 stop
United Airlines Logo
11:19 am - 9:03 pm
DLH
-
SAT
9h 44m
2 stops
$429United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
5:30 am - 2:27 pm
SAT
-
DLH
8h 57m
2 stops
United Airlines Logo
3:08 pm - 10:58 pm
DLH
-
SAT
7h 50m
1 stop
$433United Airlines
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
5:30 am - 2:27 pm
SAT
-
DLH
8h 57m
2 stops
United Airlines Logo
7:25 am - 5:43 pm
DLH
-
SAT
10h 18m
2 stops
$434United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
5:30 am - 2:27 pm
SAT
-
DLH
8h 57m
2 stops
United Airlines Logo
11:19 am - 7:48 pm
DLH
-
SAT
8h 29m
2 stops
$454United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
5:30 am - 2:27 pm
SAT
-
DLH
8h 57m
2 stops
United Airlines Logo
11:19 am - 7:48 pm
DLH
-
SAT
8h 29m
2 stops
$457United Airlines
Wed, Apr 1 - Wed, Apr 8

Delta flights from San Antonio to Duluth

Our best Delta deals on San Antonio to Duluth flight tickets
Delta
Jul 27
SAT5:50 pmSan Antonio
5h 48m
1 stop
DLH11:38 pmDuluth Intl
Aug 1
DLH5:10 amDuluth Intl
6h 55m
1 stop
SAT12:05 pmSan Antonio
$318
Delta
Jul 27
SAT5:50 pmSan Antonio
5h 48m
1 stop
DLH11:38 pmDuluth Intl
Aug 1
DLH5:10 amDuluth Intl
6h 55m
1 stop
SAT12:05 pmSan Antonio
$338
Delta
Jul 27
SAT5:50 pmSan Antonio
5h 48m
1 stop
DLH11:38 pmDuluth Intl
Aug 1
DLH4:20 pmDuluth Intl
7h 54m
2 stops
SAT12:14 amSan Antonio
$509

United Airlines flights from San Antonio to Duluth

Our best United Airlines deals on San Antonio to Duluth flight tickets
United Airlines
Apr 14
SAT6:49 amSan Antonio
7h 38m
1 stop
DLH2:27 pmDuluth Intl
Apr 18
DLH11:19 amDuluth Intl
7h 41m
1 stop
SAT7:00 pmSan Antonio
$418
United Airlines
Apr 14
SAT6:49 amSan Antonio
7h 38m
1 stop
DLH2:27 pmDuluth Intl
Apr 18
DLH11:19 amDuluth Intl
7h 41m
1 stop
SAT7:00 pmSan Antonio
$423
United Airlines
Apr 14
SAT6:49 amSan Antonio
7h 38m
1 stop
DLH2:27 pmDuluth Intl
Apr 18
DLH11:19 amDuluth Intl
9h 44m
2 stops
SAT9:03 pmSan Antonio
$424

momondo 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, momondo users made 832,500 searches. Data last updated March 15, 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

Price

Cheapest round-trip
Quickest round-trip

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Mon 7/27

5:50 pm-11:38 pm

1 stop5h 48m

Duluth Intl

Sat 8/1

5:10 am-12:05 pm

1 stop6h 55m

$318

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Mon 7/27

5:50 pm-11:38 pm

1 stop5h 48m

Duluth Intl

Sat 8/1

5:10 am-12:05 pm

1 stop6h 55m

$338

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Tue 4/14

6:49 am-2:27 pm

1 stop7h 38m

Duluth Intl

Sat 4/18

11:19 am-7:00 pm

1 stop7h 41m

$418

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Tue 4/14

6:49 am-2:27 pm

1 stop7h 38m

Duluth Intl

Sat 4/18

11:19 am-7:00 pm

1 stop7h 41m

$423

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Tue 4/14

6:49 am-2:27 pm

1 stop7h 38m

Duluth Intl

Sat 4/18

11:19 am-9:03 pm

2 stops9h 44m

$424

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Tue 4/14

6:49 am-2:27 pm

1 stop7h 38m

Duluth Intl

Sat 4/18

11:19 am-9:03 pm

2 stops9h 44m

$429

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 4/1

5:30 am-2:27 pm

2 stops8h 57m

Duluth Intl

Wed 4/8

3:08 pm-10:58 pm

1 stop7h 50m

$433

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Tue 4/14

5:30 am-2:27 pm

2 stops8h 57m

Duluth Intl

Sat 4/18

7:25 am-5:43 pm

2 stops10h 18m

$434

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Tue 4/14

5:30 am-2:27 pm

2 stops8h 57m

Duluth Intl

Sat 4/18

11:19 am-7:48 pm

2 stops8h 29m

$454

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 4/1

5:30 am-2:27 pm

2 stops8h 57m

Duluth Intl

Wed 4/8

11:19 am-7:48 pm

2 stops8h 29m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Duluth from

How to get the cheapest flight ticket from San Antonio to Duluth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from San Antonio to Duluth Intl?

Delta and United Airlines are the most popular carriers operating from San Antonio to Duluth Intl

When to book flights from San Antonio to Duluth

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Duluth according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Antonio to Duluth (SAT to DLH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Duluth

Fastest flight time

5h 48m

Direct flights

None
The fastest flight from San Antonio to Duluth takes 5h 48m
There are no direct flights from San Antonio to Duluth. There are no popular flight routes from San Antonio to Duluth.
Search flight deals

  • How far is San Antonio to Duluth Intl by plane?

    A flight from San Antonio to Duluth Intl will travel around 1246.7 mi. In terms of flight time, this usually takes a little over 5h 48m.

  • When did momondo last update prices for flights from San Antonio Airport to Duluth Intl Airport?

    Prices for flights from San Antonio Airport to Duluth Intl Airport are updated daily.

  • How many operators does momondo search for flights from San Antonio Airport to Duluth Intl Airport?

  • How old do you have to be to fly from San Antonio Airport to Duluth Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Duluth Intl Airport.

  • What documentation or ID do you need to fly to Duluth Intl Airport?

    The required travel and health documents for your Duluth Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Duluth Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Antonio to Duluth?

Best airlines flying from San Antonio to Duluth

Compare and see reviews for airlines that fly from San Antonio to Duluth with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $258Free CancellationRating
7.9
8,293 reviews
Search Delta flights

Traveling to a place near Duluth?

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

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Duluth?

It is quick and easy to find San Antonio to Duluth flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Duluth that suits you.

Can I find flights from San Antonio to Duluth with flexible booking policies on momondo?

Flights from San Antonio to Duluth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Antonio to Duluth?

Once all potential San Antonio to Duluth flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Antonio to Duluth right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Duluth from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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